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166 commits

Author SHA1 Message Date
pre-commit-ci[bot]
f6b341bc70 [pre-commit.ci] auto fixes from pre-commit.com hooks
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2026-07-23 08:46:48 +00:00
oobabooga
dbb06ff60e
Studio: add configurable model download location (#7274)
Adds a configurable Hugging Face model download cache location to Unsloth Studio, selectable from Settings, with per-cache download manifests, scoped deletion, and read-only inventory of previously selected caches.
2026-07-23 01:34:38 -07:00
oobabooga
88583dd2ec
Installer: restore interrupted updates and clean stale rollback environments (#7342)
* Installer: restore interrupted updates and clean stale rollback environments

* CI: run POSIX rollback lifecycle tests on Linux
2026-07-23 01:29:53 -07:00
Michael Han
8aaf2f78eb
Studio: drive UI font size through a typography scale instead of the root font size (#7359)
* Studio: drive UI font size through a typography scale, not the root font size

Follow up to #7355. The preference now writes --ui-font-scale
(selected / 16) and a data-ui-font-size attribute on the root instead
of mutating the root font size, and the applier clears any stale inline
root font-size left by older builds. Because the rem base never moves,
every layout-only rem-to-px conversion from #7355 is reverted to its
original form: the spacing, radius and container tokens, sidebar and
thread widths, grid tracks, calc margins and hub.css dimensions match
pre-#7355 main again, which also restores rem-based accessibility
scaling for users with a larger browser default font size.

Typography scales through tokens in index.css, all exact at 16px:

- The named Tailwind sizes (--text-xs through --text-4xl) multiply
  their defaults by the scale, so standard utilities scale
- One token per design px size (--text-ui-8 ... --text-ui-34) replaces
  every arbitrary text-[Npx] class; leading-ui-* mirrors the exact
  line heights and the numeric --leading-3..10 scale as well
- CSS font-size and line-height declarations multiply by the scale
- Chart labels scale through a .recharts-text rule; streamdown and
  react-flow px text is re-based via scaled overrides; KaTeX's 1px
  layout trick stays fixed by design
- The logo lockups keep their half-rate behavior via the scale var
- The explicit Code font size remains unmultiplied

Keeps the #7355 behavior fixes: color chip min width, voice select
min/max widths, and the select and dropdown menus scrolling an inner
viewport so their corners stay rounded. The whitespace-password and
IME rename guards that merged alongside are preserved.

* Studio: contract and Playwright coverage for the UI font size scale

test_ui_font_scale_contract.py pins the mechanism (scale var written,
root font size never mutated, tokens scaled, code font size not
multiplied, the Radix select viewport owning scroll state) and guards
against new raw pixel typography, with a documented allowlist for the
recharts fontSize props covered by the stylesheet override and the
offscreen clipboard textarea.

playwright_ui_font_scale.py drives the real appearance controls: root
font size fixed at 12/16/20, text and line height scale by size/16,
sidebar width invariant, explicit code font size stays fixed, an
overflowing dictation select scrolls its Radix viewport by keyboard
and wheel, and the default restores exactly. Wired into the UI smoke
workflow against the second studio boot.

The thinking-compact and descender contracts move back to the rem and
token forms now that layout values no longer need px pinning.
2026-07-23 01:26:56 -07:00
Michael Han
fa5498db0b
Studio: UI font size scales all text consistently without moving layout (#7355)
* Studio: make UI font size scale all text without moving layout

The UI font size setting changes the root rem base, so only rem sized
text reacted. Hundreds of px text classes, px font sizes in CSS, and
chart labels stayed fixed, while rem based padding, widths and radii
wrongly grew.

Convert all text sizes to rem so every font follows the setting, and
pin spacing, radius, container widths, sidebar and thread widths to px
so layout no longer follows the rem base. Library styles (streamdown,
react-flow) are re-based via overrides. All conversions are exact at
the default 16px root, so the default rendering is unchanged.

* Studio: keep logo at fixed size and fit tight controls at large UI fonts

The logo lockups (sidebar wordmark with beta badge, onboarding wizard)
are branding and now keep px sizes at any UI font size.

Two controls clipped their text at the largest setting: the appearance
color chips (fixed w-24) and the voice tab selects (fixed w-56). Both
use min widths now, so they keep the default look at 16px and only
grow when the text needs the room.

* Studio: keep dropdown corners rounded when the menu scrolls

A scrolling dropdown lost its rounded corners on the scrollbar side:
WebKit paints the surface square when the rounded element itself hosts
the scrollbar, which shows up in the desktop app whenever a menu
overflows, for example at larger UI font sizes.

Dropdown menu and select content now clip with overflow hidden and
scroll an inner viewport instead. The surface padding insets the
scrollbar clear of the curve, so corners stay rounded in every engine.
Submenus are unaffected since sub content is portaled.

* Studio: scale the logo lockups at half the UI font size rate

Rather than pinning the logo, the sidebar lockup (sticker, wordmark,
beta badge) and the onboarding lockup now follow the UI font size at
half the rate of the change: size = base + (root - 16px) / 2, written
as calc((base - 8)px + 0.5rem). A 4px font size change moves the logo
by 2px, and the default 16px root renders the exact base sizes.

* Studio: address review feedback on leading, grid tracks and select scrolling

Numeric leading utilities (leading-3 through leading-10) derive from
--spacing, so pinning spacing to px also froze their line-heights while
the paired text sizes now scale. Define them as rem theme tokens so
line-height follows the UI font size again; values are identical at the
16px default.

Convert the grid tracks the rem-to-px codemod missed (rem followed by
an underscore escaped the word boundary): the response details label
column and the on-device folder rows.

Make the Radix select viewport the bounded scroller instead of a
wrapper div, so Radix's scroll handling and the browser scroll the same
element. Restore the app's thin scrollbar with an inline style, which
beats the scrollbar hiding stylesheet Radix injects at runtime.

* Studio: cap voice select widths and update CI contracts
2026-07-23 00:44:42 -07:00
Leo Borcherding
430ada617a
installer: fix false "no GPU detected" on AMD hosts (dead KFD check) + clearer ROCm-less warning (#7314)
* installer: fix Linux AMD GPU detection + actionable ROCm-less warning

The rocminfo/amd-smi-less fallback in _has_amd_rocm_gpu keyed on a
/gpu_id/ line inside each KFD node's properties file, but gpu_id is a
separate sibling sysfs file and never appears in properties. The guard
never matched, so the fallback missed every AMD host without ROCm
tooling (e.g. a fresh CachyOS/Arch box) and reported 'no GPU detected'
despite vendor_id 4098 being present in the KFD topology.

Detect via vendor_id == 4098 directly: the KFD CPU node reports
vendor_id 0, so any 4098 node is an AMD GPU, while NVIDIA's KFD nodes
report 4318 and stay excluded.

Also rework the 'ROCm version could not be determined' warning into an
actionable message (install the ROCm/HIP SDK; Arch/CachyOS:
rocm-hip-sdk) so ROCm-less users know the concrete next step instead of
silently landing on CPU-only PyTorch.

* tests: replace the FNR==1 KFD invariant with the per-line vendor_id check

The FNR==1 reset guarded the old paired gpu_id+vendor_id awk against
cross-node state leakage. The new detection is a single atomic
vendor_id==4098 line condition, so there is no per-node state to reset;
assert the new invariant instead (single-line vendor match, and no
/gpu_id/ pattern, which never matched inside properties).

tests/studio/install/test_rocm_support.py: 344 passed, 2 skipped.

* installer: mirror the KFD vendor_id fix in setup.sh + honest CPU-fallback summary

Codex P2 follow-ups:
- studio/setup.sh carried the same dead gpu_id-inside-properties awk, so a
  host install.sh now routes to ROCm still failed setup's independent AMD
  re-probe and got a CPU llama.cpp. Use the same per-line vendor_id 4098
  check.
- When the AMD GPU is detected but the torch index stays CPU, the summary
  printed the old false diagnosis (gpu none / "No GPU detected"). Gate both
  on _has_amd_rocm_gpu and say what actually happened: AMD GPU present, no
  usable ROCm, CPU fallback.
- Structure test asserting setup.sh's KFD awk stays in sync with install.sh.

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* Keep KFD-only AMD hosts on the CPU fallback (Codex P2s)

The KFD-topology fix makes _has_amd_rocm_gpu / _setup_amd_detected true on hosts that expose an AMD GPU to the kernel but ship no rocminfo/amd-smi. Detection alone does not mean ROCm is usable or that the gfx arch is known, and two downstream paths wrongly assumed it did:

- studio/setup.sh forwarded --has-rocm with no gfx, so install_llama_prebuilt found no per-gfx bundle and dropped to a HIP source build (slow, or a hard failure without build deps) instead of the CPU prebuilt these hosts used to get. Now --has-rocm is forwarded for a gfx-unknown host only when hipcc is present; otherwise it keeps the CPU prebuilt.

- install.sh get_torch_index_url selected a generic rocmX.Y index whenever the ROCm version was readable, but the Strix reroute only learns gfx from rocminfo/amd-smi, so a Strix KFD-only host landed on the broken _grouped_mm wheels. Now, when neither rocminfo nor amd-smi is present (gfx unknowable), it stays on CPU with a hint to install them.

Detection and the improved diagnostics are unchanged; only the routing for gfx-unknown KFD-only hosts is made safe. Adds tests for both gates.

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* Harden KFD-only fallback: probe gfx, accept versioned hipcc (Codex P2s)

Follow-up to the previous commit's two guards:

- install.sh: the KFD-only torch guard tested only 'command -v rocminfo/amd-smi', so a host where those binaries exist but do not enumerate the GPU (gfx unreadable) slipped through and, with hipconfig/rocm-core present, still got a generic rocm index -- breaking Strix. Now it actually reads the gfx (rocminfo, then amd-smi list / static --asic, the same probe the reroute uses) and falls back to CPU whenever the arch is unreadable, not just when the binaries are absent.

- studio/setup.sh: the hipcc gate missed a HIP toolchain installed only under a versioned prefix (/opt/rocm-*/bin/hipcc), which the source build at setup.sh:1663 does support, so such hosts were dropped to the CPU prebuilt unnecessarily. The gate now also accepts /opt/rocm-*/bin/hipcc.

Tests updated to assert the gfx-read (not binary-presence) gate and the versioned hipcc path; full test_rocm_support.py green (347 passed). Verified the gfx probe by execution: rocminfo-with-no-gfx now routes to CPU, amd-smi fallback still resolves gfx.

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* Honor UNSLOTH_ROCM_GFX_ARCH before the CPU fallback for PR #7314

Seed both the gfx-unknown guard in get_torch_index_url and the Strix reroute
from UNSLOTH_ROCM_GFX_ARCH before probing rocminfo/amd-smi, so a host that
names its arch reaches the correct rocm index instead of being forced to CPU
(or to the generic wheels) when the runtime probes can't enumerate the GPU.

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* Probe gfx with visibility masks cleared for PR #7314 (Codex P2)

rocminfo/amd-smi honor ROCR/HIP_VISIBLE_DEVICES, so a container that masks the
GPU (e.g. ROCR_VISIBLE_DEVICES=-1) would make the gfx probe read nothing and
force CPU torch, even though the KFD-based AMD detection is env-independent and
hipconfig can still supply the ROCm version. Clear the visibility masks for the
rocminfo/amd-smi arch probe only (the Strix reroute keeps them for per-GPU index
selection), so a masked/container host keeps its ROCm route.

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* Re-probe gfx unmasked in the Strix reroute when a mask hides all agents for PR #7314 (Codex P2)

* Remove leftover conflict marker from the test merge

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* Report an explicit CPU pin instead of a ROCm misdiagnosis for PR #7314 (Codex P3)

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* Trigger the reroute re-probe on a set-but-empty visibility mask for PR #7314 (subagent review)

* Guard the ROCm version chain against set -e when no source exists for PR #7314 (simulation find)

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* Preserve the inferred-gfx reroute for KFD-only hosts (Codex P2)

The gfx-unknown CPU guard in get_torch_index_url fired before the
runtime-less reroute could run: with the KFD topology fix,
_has_amd_rocm_gpu is true on KFD-only hosts, so the reroute's
'! _has_amd_rocm_gpu' gate never let _infer_linux_amd_gfx_arch route
them to AMD per-arch wheels, regressing inferable boxes (PCI/cpuinfo/
lspci) from arch-specific PyTorch to CPU-only.

- Factor the override->rocminfo->amd-smi gfx probe (masks cleared)
  into _probe_amd_gfx_arch, shared by the guard and the reroute gate
  so the two can't disagree on what 'readable' means.
- Reroute gate now also fires when the GPU is detected but the probe
  is empty (KFD-only). Deliberate CPU fallbacks (old/unreadable ROCm
  version) all had a readable gfx and stay excluded.
- The guard defers to the reroute (no false 'installing CPU-only
  PyTorch' promise) only when inference yields a supported family;
  otherwise the actionable CPU warning is unchanged.

Executed tests: KFD-only host reroutes to repo.amd.com per-arch wheels
and exports UNSLOTH_ROCM_GFX_ARCH for setup.sh; readable-gfx CPU
fallback stays un-rerouted; undetected-GPU reroute unchanged; the
guard's three inference outcomes covered. Suite: 375 passed, bash -n
clean on both scripts.

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* Fix two false diagnostics on the KFD-only paths (Codex P3s)

1. get_torch_index_url: with UNSLOTH_ROCM_GFX_ARCH set on a KFD-only
   host that has no ROCm version sources, the no-version endpoint
   printed 'falling back to CPU-only PyTorch' even though the reroute
   (gated on the override) then installs the per-arch wheels. When the
   override maps to a wheel family, defer with an accurate message;
   an unmappable override keeps the CPU warning since the reroute
   can't route it either.

2. Runtime-less reroute: the KFD-only branch reached the warning
   'ROCm runtime not visible (/dev/kfd, rocminfo, amd-smi)' although
   /dev/kfd is exactly what detected the GPU. The diagnostic now
   distinguishes KFD-visible/tooling-blind hosts from truly
   runtime-invisible ones.

Executed tests: supported override defers without the false CPU
warning, unsupported override and readable-gfx no-version hosts keep
it; KFD-only reroute emits the KFD wording, undetected-GPU reroute
keeps the original. Version sources are shimmed so the tests hold on
dev boxes with a real hipconfig. Suite: 376 passed, bash -n clean.

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Co-authored-by: Daniel Han <danielhanchen@gmail.com>
2026-07-23 00:42:03 -07:00
oobabooga
6f4c838281
Studio: calibrate Linux chat typography against macOS (#7337) 2026-07-23 01:55:45 -03:00
Souravrajvi0
978ae4745b
fix(install): infer Strix gfx when ROCm runtime is absent (#7305)
* fix(install): infer Strix gfx when ROCm runtime is absent

When /dev/kfd and rocminfo are missing on Linux (e.g. Arch/CachyOS Strix
Halo), route to AMD per-arch wheels via cpuinfo/lspci inference instead
of CPU-only PyTorch. Mirrors install.ps1 Windows behavior and fixes
studio update via install_python_stack.py (unslothai#7301).

* Map Radeon 8065S to gfx1151 in the Linux gfx inference (Codex P2)

install.sh _infer_amd_gfx_arch_from_gpu_name missed 8065S, so a Strix Halo host that only exposes 'AMD Radeon 8065S' via lspci (no Ryzen AI Max branding in /proc/cpuinfo) was left on CPU torch. setup.sh and setup.ps1 already list 8065S -> gfx1151. Added it, and widened the cpuinfo regexes (install.sh and install_python_stack.py) from Radeon 80[0-9]0S to 80[0-9][05]S to match the 80X5S naming, consistent with the display-side check already in install.sh. Tests cover the 8065S name and the cpuinfo-only case.

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* Gate the Linux gfx inference out of WSL without the ROCDXG runtime for PR #7305

On WSL /proc/cpuinfo and lspci still see the host APU, so a standalone
'unsloth studio update' could infer gfx1151 and install per-arch ROCm wheels
into a WSL env whose ROCDXG bridge (librocdxg) was never bootstrapped, i.e. one
that cannot expose the GPU. Skip the cpuinfo/lspci inference on WSL unless
librocdxg is present; an explicit UNSLOTH_ROCM_GFX_ARCH override still wins.

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* Address Codex review on PR #7305 (WSL runtime gate, Linux mirror, arch guard)

- install.sh _infer_linux_amd_gfx_arch: skip the cpuinfo/lspci inference on WSL
  unless librocdxg is present (the ROCDXG bridge), mirroring the Python fix, so a
  WSL box whose ROCm bootstrap was skipped keeps the CPU fallback instead of
  installing AMD wheels that cannot reach the GPU. The explicit UNSLOTH_ROCM_GFX_ARCH
  override still returns first, so it stays authoritative.
- install.sh: guard the inferred-gfx reroute on x86_64|amd64. ROCm torch wheels are
  not published for arm64, so an inferred/overridden gfx no longer pushes an arm64
  host to the AMD arch index (get_torch_index_url returns CPU there).
- install_python_stack.py _amd_arch_index_url: honour UNSLOTH_AMD_ROCM_MIRROR on
  Linux (the same var install.sh uses) instead of the Windows mirror var, so a
  mirrored/air-gapped Linux 'unsloth studio update' reaches the index install.sh
  chose. Windows still delegates unchanged; both default to repo.amd.com.

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* Scan all AMD display controllers in the lspci fallback for PR #7305 (Codex P2)

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* fix(studio): keep inferred AMD wheels from being overwritten

After a successful inferred-gfx install, skip the generic pytorch.org
ROCm reinstall so readable ROCm userland without /dev/kfd cannot undo
the per-arch repair (Codex P1 on #7305). Also merge latest main.

* Only take the inferred-gfx install when the runtime sees no GPU for PR #7305 (Codex P1)

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* Isolate three updater tests from the host cpuinfo for PR #7305 (Strix dev box leak)

* Gate the reroute on invisible ROCm and forward the inferred gfx to setup.sh for PR #7305 (Codex P2s)

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* Require AMD PCI display evidence for cpuinfo inference; honor gfx override with visible ROCm for PR #7305 (Codex P2s)

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2026-07-22 20:16:45 -05:00
Souravrajvi0
84b762228c
fix(install): route Strix to AMD gfx index on ROCm 7.14 (#7300)
* fix(install): route Strix to AMD gfx index on ROCm 7.14

When ROCm 7.3+ caps to the generic pytorch.org rocm7.2 index (or the
Radeon repo is unavailable), gfx1150/gfx1151 hosts were left on
torch 2.11+rocm7.2 instead of AMD's arch-specific wheels. Broaden the
Strix reroute in install.sh and studio/install_python_stack.py so
`studio update` repairs the same path as fresh installs (unslothai#7280).

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2026-07-22 05:03:51 -07:00
Daniel Han
4e1cb4affa
install.sh: route Strix to the AMD arch index on rocm7.2 (#7264) + PCI detection hint (#7293)
* install.sh: route Strix (gfx1151/gfx1150) to the AMD arch index on rocm7.2, add PCI hint

Two Linux install fixes for AMD Strix Halo / Strix Point:

1. #7264: Strix reverts to rocm7.2. Modern ROCm (7.3+) caps to the generic
   rocm7.2 index and the Radeon repo can be unavailable, so gfx1151/gfx1150
   landed on a non-arch-specific build (torch 2.11+rocm7.2) instead of
   repo.amd.com/rocm/whl/gfx<arch> (torch 2.11+rocm7.13, AMD's real Strix
   fixes). The reroute to that arch index only fired on rocm7.1; broaden it to
   rocm7.2 too. Only acts when a gfx1151/gfx1150 is actually detected, so other
   arches on rocm7.2 pass through unchanged.

2. Rows about Strix not detected -> CPU-only: when no GPU is detected but an AMD
   display GPU is on the PCI bus, print a targeted hint (ROCm kernel stack /
   /dev/kfd missing) instead of only the generic docs pointer. Purely
   additive diagnostic; does not change the torch index decision.

* Address review on PR #7293: gate PCI hint on ROCm-detection failure, fix test marker, use read builtin

- Only show the 'ROCm cannot see the GPU' hint when _has_amd_rocm_gpu fails;
  a detected-but-too-old ROCm (rocminfo works, wheels need 6.0+) has its own path.
- Update test_previous_torch_pin.sh to the stable 'Strix Halo / Strix Point:'
  marker after the heading reworded (the old grep broke the ordering assert).
- _amd_gpu_present_via_pci: read builtin instead of spawning cat twice per
  device, and guard /sys/bus/pci/devices existence.

* install.sh: reroute Strix on any generic index older than the arch build

Generalize the Strix reroute from the hardcoded rocm7.1/rocm7.2 match to a
version compare against the arch index's own build (rocm7.13):

- backwards: rocm6.0-6.4 and rocm7.0 now reroute (were silently missed)
- forwards: any future intermediate rocm7.x below 7.13 reroutes; rocm7.13+
  is left alone so a generic index that already carries the fix is not
  downgraded to the arch build

_rocm_index_below does an integer major.minor compare (so rocm7.2 < rocm7.13);
non-rocm, arch (gfx), and unparseable URLs return false, so NVIDIA/CPU and the
arch index itself are untouched. Reroute still fires only for gfx1150/gfx1151.

* install.sh: tighten _amd_gpu_present_via_pci comment (no code change)

* install.sh: match the index leaf in the Strix version reroute (#7293 review)

Address two review points on the rocm-version reroute:

- Parse the final path segment (_torch_index_leaf) instead of grepping the whole
  URL. A custom mirror whose base path holds its own rocm token (e.g.
  .../rocm7.13/cache/rocm7.2) previously matched the base and skipped the reroute;
  now it compares the leaf (rocm7.2) like the nearby index-family logic. Renamed
  the helper to _rocm_leaf_below and switched the case selector to $_torch_index_leaf.
- Replace the stale test_strix_override_only_fires_on_rocm71 (which passed by
  matching the new rocm7.13 comment) with an executed test that runs _rocm_leaf_below
  and asserts rocm6.0-7.12 reroute while rocm7.13+/gfx/cu leaves do not.

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* install.sh: keep gfx probes non-fatal under set -e (#7293 review)

The Strix reroute now matches every rocm* index, not just rocm7.1, so its gfx
detection runs on all AMD installs. Each `_gfx_all=$(rocminfo|amd-smi | grep -oE
gfx...)` returns 1 when grep finds no match, which under set -euo pipefail aborts
the installer before the next fallback runs (e.g. rocminfo present but emitting no
gfx token). Append `|| true` to the three probes, matching the display block that
already guards this. Add an executed regression test (shimmed rocminfo/amd-smi)
that fails if any probe becomes fatal again.

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2026-07-21 19:40:59 -07:00
Lee Jackson
77da6e8fcb
Studio: show HF token tick only after validation (#7268)
* Studio: show HF token tick only after validation

* Studio: prevent stale HF token validation state

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2026-07-21 03:53:11 -07:00
Wasim Yousef Said
5f92658ac3
Fix Studio desktop reliability (#7255)
* Fix Studio desktop reliability

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* Fix desktop export completion and layout migration

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* Fix maximized setup layout migration

* Adapt desktop exports to data settings

* fix(studio): harden desktop reliability edge cases

* fix(studio): preserve rounded combobox focus fill

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2026-07-21 09:51:18 +02:00
Eyera
27b6d553fe
Feat/model picker per model config v2 (#7207)
* refactor(studio): move chat model picker into features/model-picker

Relocate model-selector + its support files from components/assistant-ui
into a self-contained features/model-picker feature (own barrel), mirroring
the modular Hub layout. Pure move + import repoint; no behaviour change.

* feat(model-picker): add per-model config persistence layer

Superset PerModelConfig (customContextLength, kvCacheDtype, speculativeType,
specDraftNMax, tensorParallel, chatTemplateOverride, trustRemoteCode) persisted
to localStorage (unsloth_model_configs) with schema versioning + LRU budget.
KV-dtype and speculative value sets match main's sidebar (no q4_0/ngram-simple).
Reuses features/hub/lib/model-identity for normalization; adds storage-key layer
and applyPerModelConfigToRuntime (sets tensorParallel, which the old PR omitted).

* feat(picker): modular backend for chat-template validate + default fetch

New studio/backend/picker package (schemas/service/routes) mounted at /api/picker:
- POST /api/picker/validate-chat-template (Jinja syntax validation, no false positives)
- GET  /api/picker/chat-template/{model_name} (default template from tokenizer_config.json,
  reusing get_cache_path/resolve_cached_repo_id_case; graceful null, no model-code exec)
Frontend api/templates.ts client + hooks/use-model-defaults lazy cache. No backend
changes to the existing inference load route (per-model load fields already supported).

* feat(model-picker): bind picker on-device list to shared hub inventory

Picker now sources cached + local models from useHubInventory (the Hub's shared
store) via a thin adapter, replacing its own /api/models/* fetchers + module
caches. Hub, download manager, and picker now share one source of truth, so
completed downloads reflect in the picker automatically. Partial/live-download
rows are filtered from the cached lists (unchanged rendering). Local naming/search
preserved via additive LocalInventoryRow modelId/displayName. Variant expander,
scan-folder management, recommended-fit, search, external providers untouched.

Known minor: cached 'Downloaded date' sort tiebreak degrades to alphabetical
(hub cached rows carry no mtime); default 'recent' (load-time) sort preserved.

* feat(model-picker): per-model config step inside the picker

Picking a (non-external) model now opens an in-picker config view built from
main's current load controls (context length, KV cache dtype, speculative
decoding, draft tokens, tensor parallel) plus a chat-template editor backed by
the picker validate/default endpoints. 'Remember for this model' persists the
config per model+variant; Run forwards the config to the existing load flow via
meta.config. External models bypass the step. Two-view orchestration lives in
model-selector (single interception point); pickers.tsx call sites untouched.
trustRemoteCode dropped from PerModelConfig to preserve main's per-load consent.

* feat(chat): apply/persist per-model config through the load flow

handleCheckpointChange threads meta.config into the selection; stageOrLoad and
the autoload/Hub-run paths now apply the picker config (explicit pick or saved
remembered config) via applyPerModelConfigToRuntime before staging/loading, with
keepSpeculative set so a remembered speculative mode survives the model switch.
Replaces the old remembered-load-settings seeding (resolveInitialConfig now the
single source). SelectedModelInput carries config.

* refactor(chat): remove per-model load config from the right sidebar

The load knobs (context, KV cache, speculative, draft tokens, tensor parallel)
and the chat-template editor now live only in the picker config step. The sheet's
Model section keeps the staged Load/Cancel flow (config is applied at pick time);
sampling params, system prompt, and RAG are unchanged. Deletes the superseded
remembered-load-settings module + the store's applyRememberedLoadSettings action,
removes the now-dead sheet state/imports, and points the settings reset at
unsloth_model_configs. Delete-cleanup deferred (stale config is LRU-capped).

* fix(model-picker): remove leftover sidebar-staging cogwheel + empty Model section

The downloaded-variant gear (ModelLoadSettingsAction) staged a model straight
into the right-sidebar Run-settings flow -- the old 'configure before load' path
now fully replaced by the in-picker config step. Removed the gear + its component.
Also gate the sheet's 'Model' section to staged picks only (pendingSelection):
after the load-knob strip its content is staged-only, so it was rendering an
empty section header whenever a model was merely loaded.

* chore(chat): remove dead per-model-config setters + modelControlsDisabled

After the load-config UI moved into the picker, the store's per-model setters
(setKvCacheDtype/setSpeculativeType/setSpecDraftNMax/setTensorParallel/
setCustomContextLength/setChatTemplateOverride) had zero callers
(applyPerModelConfigToRuntime writes via setState), and the sheet's
modelControlsDisabled was unreferenced. Verified dead across the whole tree.

* fix(chat): config-step Load actually loads (ignore Load-on-selection)

Root cause: with Settings > Chat > 'Load on selection' turned OFF, the config
step's load went down the deferred-staging path -- opening the right sidebar with
'<model> is staged, not loaded yet / Choose Load model'. The in-picker config step
IS the deliberate load action, so its Load now loads immediately (or downloads +
auto-loads when not cached) regardless of the toggle. Renamed the button
'Run model' -> 'Load model' to match. Native/dropped picks still honor the toggle.

* refactor(chat,hub): retire 'Load on selection' — config step is the only load flow

The in-picker config step (and the Hub Run button) now fully supersede the old
stage-to-sidebar flow, so the Load-on-selection toggle is removed everywhere:
- chat stageOrLoad: every pick loads immediately, or downloads + auto-loads when
  not cached (the previous default behaviour, now universal).
- hub Run: drops the stage branch; downloaded GGUFs load directly with their saved
  per-model config (no collision with the chat config step — both end at selectModel).
- store: removed loadOnSelection field/setter/key/default; Settings>Chat toggle and
  its settings-reset entry removed.
- staged sidebar section is now a download-progress view (auto-loads on completion).
No manual staging remains; stageModel is used only for background auto-load downloads.

* feat(model-picker): default chat template from GGUF + thread variant through config flow

Read the embedded tokenizer.chat_template from GGUF files (read_gguf_chat_template
in gguf_metadata) and use it as the per-model default. Plumb gguf_variant through
the picker service, /api/picker/chat-template route, frontend templates API, and
use-model-defaults so the right variant's template is fetched.

Also refine the picker config-page/model-selector wiring, drop the dead
ggufNativeContextLength runtime path, and add the per-model-config storage keys to
the settings prefs export.

* feat(model-picker): read safetensors chat template + hide editor where it has no effect

Resolve the default chat template for safetensors models: prefer the modern
chat_template.jinja, fall back to the tokenizer_config.json chat_template field,
then chat_template.json (multimodal processor), then the GGUF embedded template.
Applied to local dirs, the HF cache snapshot scan, and the HF remote fetch.

Hide the chat-template editor in the picker for safetensors models — the override
is only applied at load by the GGUF/llama.cpp backend, so editing it on safetensors
currently has no effect. GGUF keeps the editor. Nothing removed; the dialog stays
for when the safetensors apply path is wired up in a later branch.

* fix(model-picker): set legacy-migration flag only after the write succeeds

Set unsloth_model_configs_migrated only once writeMap confirms the migrated
map persisted, so a quota/storage failure no longer marks migration done and
silently drops the user's pre-existing remembered settings — the next load retries.

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* MVP model picker fixes

* MVP picker config fix

* MVP safetensors config

* MVP max seq config

* MVP max seq fix

* Fix static max tokens cap ignoring model context

* Fix picker GGUF scan parity

* fix(studio): harden model picker config loading

Apply remembered per-model configs consistently from picker and Hub loads, keep default configs from overriding standing speculative settings, add config access for direct local GGUF files, and support saving or forgetting active model settings without a reload.

* Fix model picker config flow

* Fix model picker config loads

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* Avoid recursive per-model config migration reads

* Apply the displayed context length when loading a GGUF

* Fix template validation, cached template lookup, and failed load rollback

- Validate chat templates with the loopcontrols extension so templates
  that use break or continue tags pass the picker validator, matching the
  inference renderer that already accepts them.
- Read the default chat template from the newest cache snapshot rather than
  an arbitrary iterdir order, so an older cached revision no longer prefills
  a stale template.
- Capture the runtime per-model config before a load and reapply it when the
  load fails, so a failed switch leaves the active model context, KV cache,
  template, and speculative settings as they were.

* Make chat template view only for safetensors models

Custom chat template overrides are applied at inference only for GGUF
models, which pass the template to llama-server. The safetensors backend
renders with the model built-in template and ignores the override, so
editing it would save a value that never loads. For safetensors the
config page now opens the template as a read-only preview with a note
that editing is not available yet. This can become editable once
inference support for custom safetensors templates lands in main.

* Fix model picker config edge cases

- Restore prior runtime config when a load no-ops for the active model
- Cap the picker validator request body via the protected prefixes
- Keep the GGUF context slider max above the loaded context
- Fetch subfolder chat templates for uncached Hub repos
- Show the compare side config when reopening the picker

* Keep saved GGUF context above the fallback ceiling

* Show the model config in the run settings sidebar

* Fix model config sidebar reset and context slider

- Stack the remember toggle and action buttons in the sidebar
- Reset the config to defaults instead of the loaded values
- Fetch the native context so the slider max is not the loaded value

* Fix model picker config and download regressions

- Run picker chat template routes off the event loop
- Depth and root guard local template directory scans
- Restore download manager flow for uncached hub picks
- Apply per model context length on reload
- Import model picker symbols from the feature barrel

* Fix model picker config and cached download sorting

- Restore load settings when a Hub run is rejected mid load
- Reuse one NumericValueInput instead of a duplicate copy
- Fix double decode of the model name in the template route
- Remove the unused reset-to-loaded settings action
- Fix cached model download sorting

* Fix model picker per-model config edge cases

Honor a saved or typed max seq length above the model's native context so
RoPE extended values are no longer clamped and silently overwritten. Allow
typing past native while the slider keeps native as a soft ceiling.

Guard the fetch success paths in use-model-defaults against an aborted
signal, and refetch when the HF token changes.

Hash the chat template content in the sidebar remount key instead of its
length. Enable reset for a GGUF whose native context is unknown, and floor
the context slider max so it can never fall below the min.

* Fix GGUF context auto-fit and gated model config token

Stop forcing a 32768 context when a GGUF native context is unknown so the backend auto-fits to VRAM again, while still honoring an explicit context edit.

Send the HF token as a query param so gated safetensors models resolve their max position embeddings.

Derive model default state during render to drop the set-state-in-effect calls.

* Fix native GGUF context ceiling and guard picker template reads

Restore the native context store field so the sidebar slider keeps the
full ceiling for drag and drop GGUFs. Limit local chat template reads to
the browse allowlist, skip malformed repo ids, and drop unused model
picker exports.

* Fix model picker lint boundaries

* Fix model picker review findings

Chat template editor never seeded its draft. Radix only calls onOpenChange
from internal events, so the seed in the nextOpen branch was dead and a model
with a saved override opened empty. Saving then cleared the override. Drop the
dead branch, treat draft as an untouched sentinel, and reset it on every close.

Uncached Hub picks could auto load a model after the user left the chat. Main
detached the staged pick on route exit and on chat context change. Carry the
context key on the pending pick and skip the load when it no longer matches.

Also clear configTarget when the picker closes, restore the onUpdated ref so
variant rows stop resubscribing on every parent render, skip the LRU write when
the entry is already most recent, import NumericValueInput relatively, and drop
the unused ModelUpdateAction barrel export.

* Preserve GGUF context on active reload

* Fix model picker per-model config regressions

- Stop reloading the already loaded model on re-pick
- Hide infra models from the chat picker
- Detect vision support on cached GGUF repos
- Honor saved maxSeqLength on auto load
- Restore default chat template for local GGUFs
- Warn on save failure and revert config on cancel
- Refetch picker inventory on open
- Persist read only per model config safely

* Fix stale model auto load

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* Fix model picker numeric input sizing and constraints

Size value inputs to their content so long context lengths are not clipped,
restrict them to numeric characters, and stop the speculative decoding label
from truncating in the sidebar.

* Fix picker CI tests and harden chat template resolution for PR #6647

- tests: point the descender guard at the moved model-selector.tsx path
- tests: exclude the disabled Reload model button from the regenerate locator so .first targets the real Regenerate
- picker/service.py: reject symlinked template/gguf leaves that resolve outside the browse allowlist (HF cache reads unchanged)
- compare mode: resolve each pane's own remembered chat template instead of inheriting the other pane's from the store

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* Protect future-schema per-model configs from deletion for PR #6647

savePerModelConfig already refuses to overwrite a stored config whose schema version is newer than this client understands, but deletePerModelConfig did not. Unchecking Remember on an older client therefore silently destroyed a newer client's saved config. Apply the same guard on delete and surface the blocked case through the existing saveFailed toast.

* Protect future-schema per-model configs from quota eviction for PR #6647

The save and delete guards already refuse to touch a stored config whose schema version is newer than this client understands, but the quota-eviction path did not, so a full store on an older client could still evict a newer client's config. Skip future-schema entries when evicting and fail the save if the budget cannot be met without them.

* Fix GGUF context persistence, compare context, and rollback settings for PR #6647

Persist a GGUF context override from the user's intent instead of collapsing it against the loaded context, which reintroduced the context-reset (f4838782cb reverted the native-baseline fix). model-config-page now collapses the saved value against native, and use-chat-model-runtime and chat-adapter retain the requested context on load so re-saving another setting keeps the override; a null request stays null so a VRAM auto-fit never becomes a stored override.

shared-composer: a compare pane with no explicit GGUF context now loads at native (0) like single-view, not the session maxSeqLength that silently shrank the shown context.

use-chat-model-runtime: restore the previous model's KV cache dtype and chat template on a failed-load rollback so it runs as it was, not with backend defaults.

* Preserve native path token when reloading the active model for PR #6647

handleReloadActiveModel rebuilt the selection without the store's activeNativePathToken, so reloading a file-picked GGUF after a settings change validated the display label as a repo/path and failed. Thread the active native token through the reload selection so native-loaded models reopen correctly.

* Make picker template validation resilient and accept HF generation tags for PR #6647

Import Jinja lazily inside validate_chat_template so a backend without the optional jinja2 package (GGUF-only installs) still starts instead of raising ModuleNotFoundError at import time. Register a no-op extension for the Transformers {% generation %} assistant-mask tag so pasting a valid HF chat template validates, matching the renderer, rather than being rejected as an unknown tag.

* Honor remembered compare config and parse processor chat_template.json for PR #6647

* Fix failed-load rollback context and processor template map fallback for PR #6647

* Restore speculative decoding config on failed-switch rollback

When a model switch fails after the previous model was unloaded, the
rollback reload restored tensor_parallel, KV cache dtype and the chat
template override, but omitted speculative_type and spec_draft_n_max and
cleared their loaded shadows to null. The previous model therefore came
back running at backend defaults (speculation off) while the UI still
showed it enabled, and the status resync confirmed the off state. Resend
the previous model's speculative settings in the rollback load and keep
the store's active and loaded speculative fields in sync with them.

* Reset max sequence length when a model has no saved config

applyPerModelConfigToRuntime reset every per-model field except
maxSeqLength, which it only wrote when the incoming config had one.
maxSeqLength is the sole field carried on store.params, so selecting a
model with no remembered config left the previous model's value in place
and later loaded the new model at that leaked length. Fall back to the
standing default so an unremembered model loads at its own default.

* Surface a message when a variant update cannot start

startManagedUpdate handled the conflict and error start outcomes but let
busy fall through as if the update began, so the confirm dialog closed
with no job created and the cached variant stayed stale. Show an info
message when the repo is busy with a sibling transfer so the click is
not silently dropped.

* Keep per-model speculative choices out of the global default

A staged load with a per-model or one-off config sets keepSpeculative,
which already skips reading the global speculative preference. The
matching save still ran unconditionally, so the model-specific choice was
written to the global unsloth_chat_speculative_type and a later model with
no saved config started from it instead of Auto. Skip saveSpeculativeType
when keepSpeculative so the per-model choice stays isolated.

* Seed non-active model settings from the app default max length

The Run settings page captured initialMaxSeqLength from the loaded
model's runtime params and fell back to it for a model with no saved
config. Opening settings for a different, unloaded model and clicking
Load then sent the active model's context (for example 64k) instead of
the 4096 default, risking validation failures or OOMs. Seed the default
for non-active models and keep the runtime value only for the active one.

* Prefer sidecar tokenizer chat template over the GGUF copy for variants

_chat_template_from_dir returned the embedded GGUF template first when a
variant was selected, reversing the tokenizer-first precedence of the
no-variant path. A model whose chat_template.jinja or tokenizer_config.json
supersedes a stale embedded template then got the wrong template on
variant selection. Keep tokenizer files first regardless of variant; the
variant only picks which GGUF is the fallback. Adds regression tests for
both the tokenizer-wins and gguf-fallback cases.

* Keep per-model speculative choices load-local in autoload and compare

The interactive load path treats a per-model speculative choice as
load-local and skips writing it to the global default. Autoload and
generalized compare still called saveSpeculativeType unconditionally, so a
remembered off or ngram setting leaked into unsloth_chat_speculative_type
and later models with no saved config inherited it. Persist the global
preference only when the value came from the global settings.

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* Studio: record the compare pane's loaded context in runtime state so the active model's settings and any reload or save use it, not the previous context

* Studio: notify the user when a Hub autoload can't start because another download for the model is already running, instead of silently dropping it

* Studio: drop the merge's orphaned staged-model store helpers and unused alert imports

The main merge left isPendingGguf and pendingSelectionMatches referencing the
removed PendingModelSelection type, and the alert-dialog/alert imports unused
after the permission-mode dropdown replaced the bypass dialog, so tsc -b failed.

* Studio: cache a null default chat template so the viewer stops re-fetching it

A model with no sidecar or embedded template resolves to a terminal null, but
that result was never cached, so reopening the template viewer re-ran the
backend and Hugging Face lookup every time.

* Studio: detect direct-file GGUFs in run settings so Max Tokens uses their context

A GGUF loaded from a local file or custom folder has no variant label, so the
run-settings panel treated it as non-GGUF and clamped Max Tokens to the session
max_seq_length instead of the loaded GGUF context. Detect it via the reported
GGUF context and the .gguf checkpoint suffix, matching the chat page.

* Studio: prompt to re-select a local model file when its lease expired before reload

A file-picked GGUF is reachable only through a native path token that the
desktop host prunes after a TTL. Reloading reused that token blindly, so a
reload long after the initial load failed with an opaque error. Track the
token's expiry and, when it has passed, ask the user to re-select the file
instead of attempting a doomed reload.

* Fix descender-clipping test to tolerate sidebar layout utilities

The sidebar account-block div carries layout utilities (min-w-0, flex-1)
between 'flex' and 'flex-col', so the descender-clipping guard's regex,
which required 'flex' immediately followed by 'flex-col', no longer matched
and the test failed to locate the account-block div. Generalize the prefix
to allow intervening flex utilities while still capturing the leading-*
class before the collapsible visibility utility and asserting leading-tight,
so the guard against clipped glyph descenders is fully preserved.

* Harden picker chat-template resolution

Enforce the 64 KiB chat-template contract at the validate endpoint's request
model so a direct caller cannot submit a template far larger than the frontend
allows (MaxBodyMiddleware only bounds the whole request body, not this field);
oversized templates now return a clean 422.

Apply sidecar-over-GGUF template precedence globally across cached snapshots
instead of per snapshot. A repo with multiple cached revisions previously
returned the first snapshot's template, so a newer GGUF-only revision could
win over an older revision's maintained chat_template.jinja sidecar, which
contradicted the documented intent that sidecars supersede the embedded copy.

* Guard per-model config against future-schema and lossy migration

Two forward-compatibility gaps in the versioned per-model config store:

- The load/apply path returned and normalized a stored record without checking
  its schema version, so a record written by a newer client was reinterpreted
  under the current schema and applied to a live model load, even though save,
  delete and eviction all refuse to touch future-schema records. Reject
  future-schema records on load too.
- The one-time legacy migration enforced the storage budget without protecting
  the entries it had just migrated and set the completion flag unconditionally.
  When storage was already full of future-schema records (which are unevictable
  by an older client), the migrated entries were the only evictable ones and
  could be dropped while migration was still marked complete. Protect the
  migrated keys during eviction and only mark migration complete when they
  survive, so it retries once space frees up.

* Discard chat-template validation results after the dialog closes

Server-side template validation is async, but closing or cancelling the editor
did not abort it, so a late-arriving valid response still called onSave and
applied a template the user had already dismissed. Track a validation token
that is bumped on close and ignore any validation result whose token is stale.

* Record native lease expiry when loading a picked GGUF from the chip

The pending-native-model chip loaded via stageOrLoad directly, bypassing
loadNativeModelIntent, so activeNativePathExpiresAtMs was never recorded for a
chip-loaded file. A later reload then either skipped the lease-expiry guard
entirely (expiry left null) or compared against a previously loaded file's
stale expiry, so reload could reuse an already-pruned token or wrongly block a
still-valid one. Route the chip through loadNativeModelIntent, which builds the
same selection and records the expiry.

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* Prefer sidecar template for a directly selected local GGUF file

A direct .gguf file path read its embedded chat template without checking the
parent directory for a maintained sidecar (chat_template.jinja /
tokenizer_config.json), while directory and variant selections already prefer
the sidecar. That let the config editor preview or save a stale embedded
template for the same model depending on how it was selected. Check the parent
directory sidecars first, then fall back to the embedded copy, and cover both
paths with tests.

* Resolve cached chat template per revision, newest first

The earlier change searched every cached snapshot for a sidecar before
considering any snapshot's embedded GGUF template, which let an obsolete sidecar
from an older revision override the newest revision's template. Restore
per-snapshot resolution (newest first): a revision's sidecar still supersedes
its own embedded GGUF copy, but a newer revision is no longer overridden by an
older revision's sidecar.

* Preserve autoload transport conflicts and surface background busy downloads

- When a Hub autoload hits a transport conflict, keep pendingHubAutoLoad bound
  instead of clearing it. Clearing it re-keyed the download surface and its
  cleanup cancelled the conflict the toast tells the user to resolve, so the
  Hub resume affordance was gone the moment it appeared. Return early on
  conflict, mirroring the started branch, so resolving it from the Hub still
  auto-loads on completion.
- The background-download branch handled started and conflict but silently
  dropped a busy outcome, leaving the user with no feedback when a peer variant
  of the same repo was already downloading. Surface the same busy toast the
  autoload path uses.

* Fix context length, GGUF template, fetch state and lease expiry bugs

Keep explicit context length values instead of collapsing to null at
native. The collapse made the slider jump back at the native maximum
and made Reload load the previous context instead of the chosen one.

Prefer the first split when resolving a GGUF without a variant. Later
splits carry no chat template metadata, so picking the largest file
could return no template for a sharded model.

Clear stale fetch state when template and metadata lookups retry, so
a previous terminal error is not shown while a new fetch is running.

Record native path lease expiry together with the token when a load
commits. The expiry was written by only one load path and even when
the load did not start, so a reload could be blocked with an expired
file message for a still valid token.

* fix(model-picker): resolve review findings across config, inventory, and templates

- Apply remembered per-model config in the training-compare chat handoff so a
  prior model's customContextLength no longer leaks into the next load
- Match GGUF variant labels with the inventory extractor too, so cached
  no-quant-token files resolve their default chat template
- Show "Auto" instead of a fabricated 32768 when native context is unknown
- Reuse the identical staged auto-load object on same-pick so a re-pick during
  download pre-flight no longer disarms auto-load via "busy"
- Union supports_vision when deduping cross-cache inventory rows
- Serve hidden-model needles from a new GET /api/hub/hidden-models endpoint and
  merge them client-side, covering runtime-configured RAG embedders
- Clamp GET chat templates to MAX_CHAT_TEMPLATE_BYTES (route + jinja sidecar),
  matching the validate endpoint's contract
- Lower-clamp stored customContextLength to shared CONTEXT_LENGTH_MIN
- Wipe unsloth_chat_load_on_selection in Settings "Reset all"
- Drop stale pendingHasContext comment describing deleted staging machinery

* Fix stale defaults cache, token in query string and rounded up context ceiling

Refresh cached chat template and max position data when a model update
completes. Send the HF token for model config requests in the dedicated
header instead of the URL. Snap the native sequence length ceiling down
to the nearest step so the slider cannot exceed the declared maximum.

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* Fix compare pane reverting active checkpoint on non-GGUF load

Re-read runtime params after setCheckpoint so the fresh checkpoint is
kept instead of being overwritten by the pre-setCheckpoint snapshot.

* Send the HF token via header for the vision and embedding checks

checkVisionModel and checkEmbeddingModel still passed the HuggingFace
token as a ?hf_token= query parameter, so it landed in server access
logs, proxy logs, and browser history. Move them to the
X-Unsloth-HF-Token header like getModelConfig already does, and accept
the header on the check-vision and check-embedding routes with the
existing query parameter kept as a fallback for older clients.

* Cap the chat template on the model load path

The load endpoint accepted an unbounded chat_template_override, so a
direct caller could hand llama.cpp an arbitrarily large Jinja template
even though the frontend, the validate endpoint, and the read paths all
enforce the 64 KiB limit. Reuse MAX_CHAT_TEMPLATE_BYTES in the
LoadRequest validator, rejecting oversized templates with a fast
character-count check before the exact UTF-8 byte check.

* Protect existing per-model configs during legacy migration

When the one-time legacy import pushes the store over budget, eviction
now protects the entries the user already has and drops only the
just-migrated legacy entries, so importing old load settings can never
discard a newer per-model config.

* Reset clears the context override instead of pinning the native value

Reset wrote the discovered native context into customContextLength for
GGUF models, but isDefaultConfig treats any non-null customContextLength
as an explicit pin, so Reset with Remember enabled persisted a fixed
context and future loads stopped using the native auto context. Reset
now restores the full default (customContextLength null); the native
value is still shown through the existing display fallback.

* Bound chat-template sidecar reads to a size limit

The chat_template.json, tokenizer_config.json, and Hub-downloaded sidecar
readers decoded and json-parsed the whole file before the extracted
template hit the 64 KiB response cap, so an oversized metadata file could
exhaust memory. Read them through a bounded reader (4 MiB envelope) that
returns None when the file is larger, matching the existing chat_template.jinja
size guard. Adds tests for oversized tokenizer_config.json and chat_template.json.

* Keep the native-path token and lease expiry in sync

Rollback after a failed reload restored the previous token but left the
failed load's expiry in the store, so a later reload could be falsely
blocked as expired (token A paired with load B's lease). Restore the
previous lease alongside the token, and clear the expiry wherever the
token is cleared on a non-GGUF transition, so the two never diverge.

* Clear the native file lease on compare-pane loads

* Studio: add regression tests for the model-picker per-model-config

Guard the specific regressions that reverted the predecessor change:
- backend pytest (studio/backend/tests/test_model_picker_regression.py):
  infra-model hiding, HF token via header with query fallback, and the
  chat-template byte caps.
- source contracts (tests/studio/test_model_picker_contracts.py): the token
  stays out of the URL, the context ceiling is floored, the native lease is
  cleared on compare-load and restored on rollback, the default caches key on
  the inventory version, and the hidden needles stay present.
- Playwright E2E (tests/studio/playwright_model_config.py) wired into
  studio-ui-smoke.yml on port 18898: Context Length persists across a reload,
  Reset clears the stored override, and infra models are absent from the picker.
- optional GPU-gated inference smoke (tests/studio/test_gpu_inference_smoke.py)
  that auto-skips on GPU-less CI and stays short on a GPU.

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* Studio: model pinning, row menus, hub inference settings, and inventory filters

Pinning
- Add a pinned models store (localStorage) with repo and per-quant pins
- Pinned section in the model selector's On Device list and the hub inventory,
  with newest pins first so Pin to top lands on top
- Deleting a repo drops its pins

Row menus
- Replace loose row icons with a shared 3-dots menu (pin, reveal in file
  manager, copy identifier, copy path, delete) on picker rows, hub quant rows,
  the hub run bar, and on-device inventory rows
- Menus only render for models actually on disk; platform-aware reveal labels
- Backend: cached-model-path and reveal-cached-model endpoints resolving
  managed HF-cache repos only

Hub inference settings
- Gear in the GGUF run bar opens an Inference settings dialog reusing the chat
  page's controls: model config (context length, KV cache, speculative
  decoding, chat template), system prompt, reasoning, sampling, tools and
  retrieval

Inventory
- Model-type filter (text, vision, embedding, STT, TTS, diffusion) beside the
  sort pill, both with a sort icon, capped widths and truncation so the
  On device heading never wraps
- Unsloth-owned repos without an upstream provider logo fall back to the
  Unsloth mascot avatar
- Discover / On Device tabs widened; hub search bar narrowed to match

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* Studio: revert the Unsloth mascot avatar fallback

Unsloth-owned repos without an upstream provider match go back to the
colored-initial tile, and unslothai is no longer a relabeled owner.

* Studio: run-bar options on single models, and aligned type/capability filters

- Give single-model (non-GGUF) run bars the same 3-dots options menu and
  settings gear as GGUF, at repo level
- Drop Pin to top from the run-bar menus; pinning stays in the On Device list
- Add an Image to text (diffusion) capability with detection, and surface it
  in both the hub Discover capability filter and the On Device type filter
- Align the On Device type filter with the Discover capability options and
  share the same detection so both dropdowns match

* Studio: apply hub inference config on reload, eject action, and run-bar polish

- Fix inference settings not applying: the hub dialog now writes the config to
  the runtime before reload, matching the chat page (selectModel reads runtime
  state, not the selection)
- Order the settings gear before the 3-dots menu in the run bars
- Replace the loaded-model run-bar action (New Chat) with Eject, wired through
  the inspector to the hub's ejectModel
- Truncate the results heading so a long search query clips instead of
  overlapping the header pills in split view
- Use a plain magnifying-glass icon for the no-results empty state

* Studio: fix GPU settings loss, load guards, pins, filters, and cached paths

Reloading a model from the chat sidebar or the hub gear dialog rebuilt the
per-model config without the GPU memory fields, so manual GPU layers, MoE
placement, and the GPU pick were reset on every reload and could be saved
over a remembered config. The active config now comes from a shared
useActiveModelConfig hook that carries the GPU fields for GGUF models, and
the sidebar remount signature tracks them through a shared gpuFieldsSignature
helper.

The in-flight load guard lived in a ref inside each useChatModelRuntime
instance, so the chat page, hub page, and gear dialog could not see each
other's loads. A load started from the gear dialog left the hub page free to
eject the model mid-reload or start a second concurrent load. The runtime
store now records the loading pick, selectModel checks it across instances,
and ejectModel refuses with a toast while any load is in flight.

The cached-model-path endpoint matched GGUF files by basename and excluded
only mmproj, so Copy path and Reveal could return an MTP drafter for a quant
and returned 404 for directory layouts like BF16/model-00001.gguf. Variant
files are now resolved from snapshot-relative paths with the same drafter,
mmproj, and big-endian exclusions as the load path, shared through a new
_main_variant_gguf_label helper.

Hub and picker fixes:
- rename the diffusion capability label from "Image to text" to
  "Image generation", since it detects image generators
- validate pinned quants through the cached variant listing, keep the last
  verified set while revalidating, and drop deleted quants immediately
- pass a measured scroll margin to the on-device virtual list so rows past
  the overscan stay visible below the pinned block
- keep the delete menu for stopped partial safetensors downloads
- give the inventory type filter a reset in Clear filters, a truthful empty
  state with a Show all types action, and hide it on the datasets view
- order picker pinned rows by pin recency, include pinned matches in the
  empty-state check, and sync pins across browser tabs
- count only the visible rows in the On device list header

Tests: contract checks for each fix in test_model_picker_contracts.py and a
backend test for the variant label selection.

* Studio: reveal cached models in Windows Explorer under WSL

The reveal endpoint only branched on macOS, Windows, and generic Linux.
Under WSL the Linux branch spawned xdg-open, which is missing on a stock
distro without a Linux desktop, so the request failed with a 500 and the
UI showed a failed to open file manager error.

WSL is now detected with the existing helper and the path is converted
with wslpath before opening explorer.exe, selecting the file the same
way native Windows does. Directories open directly. When interop is
unavailable the old xdg-open fallback still runs. The macOS, native
Windows, and native Linux branches are unchanged, and the Tauri app is
covered since its hub reveal calls this same local endpoint.

Tests: platform guards for the WSL reveal, the interop fallback, and
the unchanged native Linux behavior in tests/studio/test_reveal_file_manager.py.

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* Adjust model picker row spacing and cogwheel hover consistency

* Studio: exact hidden model ids and newest revision cached paths

A custom RAG embedder repo was published to the frontend as a basename
substring needle, so a generic name like org/model could hide unrelated
models in the pickers. The hidden-models endpoint now sends full repo ids
that are matched exactly.

Copy path and Reveal picked a GGUF variant from an arbitrary cache
revision when the same file existed in more than one. The newest revision
now wins, matching the whole repo lookup.

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* Fix model picker GPU config, metadata, and cache selection

Load each compare model with its saved GPU memory mode, GPU layers, CPU MoE layers, and selected GPU IDs. Reconcile saved GPU IDs with the current hardware. Include the active native GGUF path token in metadata checks. Search all Hugging Face cache roots when resolving cached models and select the largest visible cache entry. Remove obsolete barrel exports and the staging-only GPU memory helper.

* Studio: hide hub inference settings gear for now

The cogwheel in the hub download cards is out of scope for this PR. The
dialog component stays in place and a TODO marks where the button
returns in a future PR.

* Refresh hidden model matchers

* Fix GGUF detection, compare context pin, and picker delete staleness

Treat any pick with a GGUF variant as GGUF in selectModel so the first
load after downloading an uncached quant validates and sizes with the
right GPU settings instead of unloading the current model on a wrong
preflight. Variant picks now also set isGguf on their selection meta.

Stop compare panes from inheriting the active model's context pin when
their own saved config says Auto. Null context in a remembered config
now means no pin, matching how the pane settings are shown.

Route picker deletes through the hub inventory client, which
invalidates the HF cache scan and the variants cache. The legacy
delete route left the scan cache warm, so deleted models reappeared
in the picker until the TTL expired. Removed the now unused legacy
delete client and updated the contract test to match.

* Studio: fix stale GGUF load-marker ordering test

The load-in-flight marker still precedes the hub-download guard and the
unload, but the llama_extra_args inheritance that used to sit between the
marker and the guard now runs ahead of the GGUF branch, so it is no
longer a landmark inside the sliced source. Drop it from the ordering
assertion and keep the marker -> guard -> unload invariant.

* Studio: fix per-model config edge cases in compare loads and saved defaults

- chat-settings-sheet: gate the MTP fallback note and context/VRAM warning on
  the broader isGguf (variant, loaded gguf context, or .gguf suffix) instead of
  isLoadedGguf, so direct-file and custom-folder GGUF loads still surface
  those diagnostics.
- shared-composer: a compare pane's context now comes from its own config only
  (a saved pin, else null for Auto/native). It no longer inherits the active
  model's shared snapshot, which resolveFitMaxSeqLength treated as an explicit
  pin and could load a pane at another model's context (VRAM/OOM), matching the
  single-model load path.
- model-config-page: when an auto-fit GGUF is saved with fixed GPU layers
  (Manual) and Remember, pin the displayed fitted context so a later fresh load
  keeps the placement instead of sending native/0 and recreating the OOM.
- per-model-config: treat Auto GPU memory mode and Auto/default speculative type
  as follow-global defaults; do not persist them as per-model overrides so later
  global preference changes keep applying.

* Studio: gate vision capability on GGUF projectors and bound remote template downloads

- cache_inventory: only mark a cached repo vision-capable when it holds an actual
  GGUF mmproj projector, not any file whose name merely contains "mmproj" (e.g.
  mmproj_config.json), matching the runtime's GGUF-only projector detection.
- picker/service: pre-check the remote file size before downloading an uncached
  repo's chat template / tokenizer config, so a maliciously large sidecar is
  skipped instead of fetched and retained in full, mirroring the size gate the
  local-file path already applies.

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* Studio: add source-contract guards for the per-model-config edge-case fixes

Guard the four per-model-config fixes against silent regression in CI:
- local GGUF diagnostics gate on the broad isGguf, not the variant-only isLoadedGguf
- fixed-layer GGUF saves pin the displayed context
- Auto GPU mode and Auto/default speculative are not persisted as per-model overrides
- a compare pane's context comes from its own config, not the active model's snapshot

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* Studio: clear manual GPU knobs on Default and resolve local embedders before repo-id

- model-config-page: switching GPU Memory back to Default now clears the Manual-only
  knobs (gpuLayers/nCpuMoe/selectedGpuIds); otherwise a remembered config kept stale
  pins that a later load re-applied when the global GPU preference was Manual, despite
  the page showing Default.
- routes/models hidden_model_matchers: resolve an existing local path before the repo-id
  regex, mirroring is_hidden_model, so a local embedder shaped like "models/embedder" is
  hidden by exact path instead of leaking as a chat model.

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* Studio: add _is_mtp_drafter to the model_config stub in the export-paths test

routes/models.py imports _is_mtp_drafter from utils.models.model_config at module
load, but the lightweight stub in test_export_absolute_paths.py did not provide it,
so loading the module under the stub raised ImportError on Backend CI. Add the stub.

* Studio: read a picked GGUF's chat template through the native path lease

The picker chat-template GET has no native-path-lease plumbing, so a
desktop-picked (drag-drop) GGUF could not show its default chat template
in Run Settings until the model was loaded: the endpoint only receives
the display label, not the leased file path.

Read the embedded template through the existing lease-aware
/api/inference/validate probe instead. A new include_chat_template flag
resolves the granted canonical path and returns the GGUF's own embedded
template, never a sibling sidecar (the grant authorizes just that one
file); it skips the training guard like include_context_length and is
bounded by MAX_CHAT_TEMPLATE_BYTES. The frontend fetch mints a one-shot
validate-model lease when a native token is present and keeps the plain
GET path for HF and allowlisted local models.

Adds backend and source-contract regression tests.

* Studio: call worker.direct_wheel_url in the ROCm wheel-url test

The ROCm Mamba/SSM test referenced worker.py's private _direct_wheel_url,
but the worker imports the wheel helper under its public name
direct_wheel_url (utils.wheel_utils). When the worker module loads (its
imports resolve in CI), worker_mod._direct_wheel_url raised AttributeError;
the test only masked it by skipping when the worker could not be imported.
Call the name that actually exists so the assertion runs; it still returns
None for an empty cuda_major (ROCm).

* Studio: reset max sequence length to the app default, not the loaded value

For a non-GGUF active model, the per-model config seeds maxSeqLength from
the loaded runtime value so the panel opens showing the running context.
Reset set config.maxSeqLength to null, but the null fallback resolved back
to that captured runtime value, so the field kept showing the old custom
length and the config saved/reloaded it again. A remembered or active
max-length override therefore could not be cleared from Run settings.

Fall the null/default case back to the app default (clamped to the model's
native ceiling) instead of the active runtime snapshot, so Reset actually
clears the override. The initial view is unaffected: an active model's
config.maxSeqLength is already non-null, so it still shows the loaded value.

Adds a source-contract regression guard.

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* Studio: persist default max length, refresh deleted quants, hide non-chat locals

Three follow-up fixes from review of the per-model-config picker:

- Max sequence length: the persisted per-model record now keeps config's
  maxSeqLength (null after Reset) so isDefaultConfig can clear a remembered
  override; the resolved app-default is substituted only into the load
  request, never the saved record. Previously Reset saved the concrete
  default and left the model pinned/remembered.
- GGUF variant expander: deleting a downloaded quant from a repo that still
  has other cached quants now bumps the expander refresh key, so the removed
  quant stops showing as downloaded and clickable (which would try to reload
  the deleted file) until the repo is collapsed and reopened.
- Local picker rows: require capabilities.canChat before listing a local
  models-folder / LM Studio row. A weightless folder (only config.json) is
  classified non-chat, and toLocalModelInfo drops capabilities, so selecting
  such a row would try to load a path the inventory already marked non-chat.

Adds source-contract regression guards for all three.

* Fix compare-pane and Reset context defaults in model picker

Two related per-model-config default regressions:

- A non-GGUF compare pane with no saved maxSeqLength fell back to the
  active model's shared runtime snapshot, so comparing a saved 128K model
  against an unconfigured pane loaded the latter at 128K and could OOM. It
  now falls back to the shared app default (DEFAULT_MAX_SEQ_LENGTH), the
  same fallback the single-model config path uses.

- contextAtDefault treated an explicit customContextLength equal to the
  native ceiling as a default, which wedged the Reset button disabled for
  a deliberate pin-to-native. It now counts as default only when there is
  no override at all.

DEFAULT_MAX_SEQ_LENGTH becomes a single exported constant in
per-model-config.ts so the single-model config and the compare path share
one source of truth. Adds source-contract guards for both fixes.

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* Skip over-cap remote Jinja templates so the tokenizer template wins

The remote chat-template resolver bounded raw chat_template.jinja downloads
only by MAX_TEMPLATE_METADATA_BYTES (4 MiB), then returned the first
non-empty Jinja unconditionally. The picker route drops any template larger
than MAX_CHAT_TEMPLATE_BYTES (64 KiB), so an uncached repo whose
chat_template.jinja sits between 64 KiB and 4 MiB returned no template at
all, even when a valid smaller tokenizer_config.json template existed. The
local path already skips oversized .jinja files and falls through.

Gate the extracted Jinja on MAX_CHAT_TEMPLATE_BYTES and continue searching
when it exceeds the cap, matching _chat_template_from_jinja_file. The 4 MiB
download bound stays for JSON files that merely embed a small template. Adds
a regression test that a big Jinja plus a valid tokenizer config resolves to
the tokenizer template.

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* Guard legacy per-model-config migration idempotency

The v1->v2 localStorage migration (unsloth_load_settings ->
unsloth_model_configs) runs on every store read, so it must migrate exactly
once and never re-run, duplicate, or clobber a newer per-model config on a
reload or restart. That was covered only by a manual proof, so add durable
guards:

- Source-contract test pinning the three idempotency layers (the in-memory
  legacyMigrationChecked guard, the persistent unsloth_model_configs_migrated
  flag set in every terminal branch, and the non-overwriting Object.hasOwn
  merge-skip) plus the readMap invocation. Reddens if any layer is dropped.

- Playwright model-config E2E: promote the legacy-migration step to a gating
  check (soft_fail, which gates under the CI STUDIO_UI_STRICT=1) that the
  migrated value is preserved and the flag is set, then reload again with a
  fresh legacy seed present and assert the stored key set is unchanged, so a
  second reload cannot re-migrate, duplicate, or clobber.

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* Note the migration E2E now gates idempotency under STUDIO_UI_STRICT

* Tighten model-picker per-model-config code comments

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Daniel Han <danielhanchen@gmail.com>
Co-authored-by: Lee Jackson <130007945+Imagineer99@users.noreply.github.com>
Co-authored-by: danielhanchen <michaelhan2050@gmail.com>
Co-authored-by: shimmyshimmer <shimmyshimmer@users.noreply.github.com>
Co-authored-by: Unsloth <michaelhan@Michaels-MacBook-Pro.local>
Co-authored-by: oobabooga <112222186+oobabooga@users.noreply.github.com>
2026-07-20 22:53:22 -07:00
Michael Han
2916e84499
Studio: clarify tool permission controls (#7181) 2026-07-20 09:55:39 -03:00
Daniel Han
3ab8dce97a
install: let UNSLOTH_TORCH_INDEX_FAMILY / _URL override CUDA wheel detection (#6692)
* install: let UNSLOTH_TORCH_INDEX_FAMILY / _URL override CUDA wheel detection

get_torch_index_url (and the studio-update mirror _detect_cuda_torch_index_url)
chose the torch wheel family solely by probing the host GPU, with no override.
In a headless / container / CI build the host driver is visible via the
/proc/driver/nvidia/gpus fallback but nvidia-smi cannot report a CUDA version,
so the function fell back to its cu126 default and installed the wrong wheels
(e.g. a cu128 image got cu126 torch).

Add an explicit override checked before any probing, in both the shell installer
and the Python studio-update path:
  - UNSLOTH_TORCH_INDEX_URL   full index URL, used verbatim (wins)
  - UNSLOTH_TORCH_INDEX_FAMILY family (cpu, cu128, rocm6.4, ...) appended to the
                               mirror base (UNSLOTH_PYTORCH_MIRROR still honoured)

This matches how the published GPU images select CUDA -- vLLM and SGLang take the
CUDA version from an explicit build ARG rather than detecting it, and the Unsloth
Docker base image already pins the cu128 index directly. Desktop installs are
unchanged: with no override set, detection runs exactly as before.

Adds test_get_torch_index_url.sh cases for the override (family, full URL,
precedence, mirror base, trailing-slash strip, empty-ignored).

* install: make the torch-index override authoritative across ROCm paths

Address review feedback on the override added in this PR so a pinned index is
honoured everywhere, not just in get_torch_index_url:

- Skip the WSL ROCm bootstrap (root privilege + large downloads, probes
  /dev/dxg) when UNSLOTH_TORCH_INDEX_URL / _FAMILY is set; it previously ran
  before the override was consulted.
- Skip the Radeon/Strix rerouting (which re-probes the GPU and overwrites the
  resolved URL with repo.radeon.com / repo.amd.com) when the index is pinned, so
  an explicit ROCm override (e.g. UNSLOTH_TORCH_INDEX_FAMILY=rocm6.4) is kept.
- install_python_stack.py: derive _TORCH_BACKEND from the override when
  UNSLOTH_TORCH_BACKEND is unset (standalone studio update), so _ensure_rocm_torch
  / _ensure_cuda_torch repair to the requested family instead of re-detecting.
- Strip ALL leading/trailing slashes in the shell override to match the Python
  side (avoids 404s on strict pip proxies).

Adds test cases for double-slash and leading/trailing-slash overrides.

* install: honor pinned torch index in CUDA/ROCm repair paths

Follow-up to the override work in this PR: the get_torch_index_url / install.sh
reroute already respect a pinned UNSLOTH_TORCH_INDEX_URL / _FAMILY, but the
Python repair helpers in install_python_stack.py still re-probed the GPU and
could overwrite the pinned family. Make the pin authoritative there too:

- _ensure_cuda_torch: an explicit cu* pin commits to CUDA wheels, so repair a
  ROCm-poisoned venv even when no NVIDIA GPU is visible here (headless /
  container / CI cross-install), instead of bailing on the GPU-presence gate.
- _ensure_rocm_torch: skip the AMD per-gfx (Strix) reroute when a ROCm index is
  pinned, and in the generic reinstall path install from the pinned URL verbatim
  rather than re-detecting the host ROCm version. gfx*/rocm7.2 indexes serve
  torch 2.11+, so select the 2.11 package specs for a gfx leaf.
- install.sh: raise the torch constraint to 2.11 for */gfx* indexes too, matching
  rocm7.2, so a pinned full-URL/family override that returns early keeps a valid
  constraint.

Add _explicit_torch_index_url / _explicit_rocm_torch_index_url helpers and tests
covering the no-GPU CUDA pin repair and the explicit gfx index honored verbatim.

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* install: honor torch-index override on the Windows installers too

The pinned-index work landed for install.sh and install_python_stack.py, but the
Windows installers still picked the wheel index from GPU probing. Extend the same
UNSLOTH_TORCH_INDEX_URL / _FAMILY contract so a pinned index wins on every platform:

- install.ps1: Get-TorchIndexUrl returns the pinned URL/family before nvidia-smi
  probing; the AMD ROCm reroute is skipped when the index is pinned, so an explicit
  cpu/cu* pin on an AMD host is not overwritten.
- studio/setup.ps1: add shared Get-PinnedTorchIndexUrl / Get-TorchIndexLeaf helpers;
  the stale-venv check, the install selection and the AMD reroute all honor the pin,
  and the CPU/CUDA install pulls from the resolved index URL.
- tests: parity test that all four installers read both override vars and the two
  Windows installers gate the AMD reroute on the pinned flag.

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* install: complete pinned-index handling for ROCm/Windows edge cases

Follow-ups to the override work flagged in review:

- install.ps1: a pinned gfx*/rocm>=7.2 index previously skipped the AMD reroute
  that sets the torch>=2.11 floor, so the generic install used torch>=2.4,<2.11
  and could resolve the known-bad _grouped_mm wheel. Route a pinned ROCm index
  through the ROCm install path with the 2.11 floor + companions, and guard the
  companion-spec lookup so a skipped reroute block cannot null-deref.
- studio/setup.ps1: the stale-venv check compared the installed flavor (cuXXX/cpu,
  with +rocm misread as cpu) against the raw pinned leaf (gfx1151 / rocm6.4), so a
  correct pinned ROCm venv was always marked stale. Classify +rocm wheels as the
  generic 'rocm' flavor and normalize a pinned rocm*/gfx* leaf to 'rocm' before
  comparing (cu* stays specific so cu126-vs-cu128 still rebuilds).
- install_python_stack.py: _ensure_cuda_torch now also reinstalls from a pinned
  CUDA index when the venv carries a CPU wheel (headless CPU-venv-to-CUDA
  cross-install via 'studio update'), not only when it finds a ROCm build.
- tests: parity assertions already cover all four installers honoring the override.

* install: finish pinned ROCm/CUDA edge cases on Windows + repair path

Follow-ups to the previous round:

- studio/setup.ps1: a pinned gfx*/rocm>=7.2 index now routes through the ROCm
  install path with the 2.11 floor + companions (it previously fell through to the
  CUDA branch with bare torch/torchvision/torchaudio against the ROCm index). The
  CPU/CUDA fallback index is forced to the CPU wheel index when a ROCm index is
  active, so a failed pinned-ROCm install does not retry the ROCm mirror.
- studio/setup.ps1: the stale-venv check no longer treats an unrecognized pinned
  URL leaf (e.g. a PEP 503 mirror ending in /simple) as a torch flavor tag, which
  was marking a correct venv stale; cu*/cpu/rocm/gfx leaves are still compared.
- install.ps1: the post-failure CPU fallback uses an explicit CPU index instead of
  , which for a pinned ROCm index was the ROCm mirror itself (so the
  'fallback' just retried the failing index and aborted the installer).
- install_python_stack.py: _ensure_cuda_torch now also reinstalls when the venv's
  CUDA family differs from a pinned one (installed cu126 vs pinned cu128), not only
  CPU->CUDA; the probe reports the installed cuXXX tag for the comparison.

* install: keep the ROCm to CPU fallback install inside the retry-helper window

The pinned-ROCm CPU fallback computes an explicit CPU index, but the comment
explaining why it cannot reuse $TorchIndexUrl pushed the actual
Invoke-InstallCommandRetry / --force-reinstall call more than 600 chars past the
"ROCm PyTorch install failed" message, so test_pr5940_followups's window check
no longer saw the retry helper. Move the CPU-index computation and its comment
above the failure substep so the retrying force-reinstall stays adjacent to the
message. No behavior change: same explicit CPU index, same retry, same
--force-reinstall.

* install: address #6692 review round 5 (ROCm/CPU pin edge cases)

setup.ps1:
- Stale-venv check: treat an AMD/ROCm host (HasROCm or a resolved gfx arch) with
  no explicit pin as expecting "rocm", not "cpu", so a healthy +rocm venv is not
  flagged stale (which made installer-managed setup exit and direct update rebuild).
- Pinned-ROCm install failure now routes into the force-reinstall CPU branch:
  CuTag stays the rocm/gfx leaf on failure, so the condition also checks
  ROCmCpuFallback; otherwise the CUDA branch installed from the CPU index without
  --force-reinstall and kept the partial ROCm torch.
- Explicit ROCm pin compare no longer collapses gfx*/rocm* to a generic "rocm":
  it compares the +rocmX.Y version (and the torch 2.11 line for gfx pins) so
  changing the pinned family (e.g. rocm6.4 -> gfx1151) rebuilds and applies it.

install_python_stack.py:
- _ensure_rocm_torch: an explicit ROCm wheel-index pin now bypasses the
  NVIDIA-present / no-AMD-GPU / unreadable-ROCm gates (headless/container/CI
  cross-install), mirroring the explicit-CUDA-pin bypass in _ensure_cuda_torch.
- Add _ensure_cpu_torch: an explicit CPU pin (FAMILY=cpu or /cpu URL) now has a
  repair path that reinstalls CPU torch over an existing CUDA/ROCm build on a
  standalone update (which skips install.sh's flavor enforcement).

install.sh:
- Pin torchvision/torchaudio companions alongside torch for the rocm7.2 / per-gfx
  index and the Strix reroute (those AMD indexes publish companions independently
  and a bare name can resolve a torch-2.12-built wheel, an ABI mismatch).

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* torch-index override: classify CUDA pin by leaf; trim blank shell overrides

_ensure_cuda_torch only overrode the NVIDIA-presence gate for *any* pinned index,
so a non-CUDA mirror URL (or a ROCm/CPU pin) on a non-NVIDIA host with ROCm torch
could force a CUDA reinstall over a working ROCm venv. Add
_explicit_cuda_torch_index_url() (leaf cu*), matching the ROCm/CPU helpers, and
gate on it instead.

install.sh::get_torch_index_url treated a whitespace-only UNSLOTH_TORCH_INDEX_URL
/ _FAMILY as authoritative (yielding an invalid index), unlike the Python .strip()
and PowerShell IsNullOrWhiteSpace paths; trim leading/trailing whitespace first.

* install: honor pinned torch index over CVD/GPU gates and fix leaf-based ROCm classification

- install_python_stack.py: an explicit cu* pin now clears the CUDA_VISIBLE_DEVICES
  empty/-1 hide gate as well as the NVIDIA-presence gate, so
  CVD=-1 UNSLOTH_TORCH_INDEX_FAMILY=cu128 studio update repairs to CUDA wheels
  (parity with install.sh's get_torch_index_url override, which skips all GPU
  probing). Unpinned CVD=-1 still skips.
- install_python_stack.py: _ensure_cpu_torch installs the bounded _CPU_TORCH_PKG_SPEC
  instead of a bare torch/torchvision/torchaudio trio; the /cpu index now also
  serves torch 2.11+, which is outside the supported <2.11 range.
- install.sh: the torch>=2.11 constraint case matches the index leaf (rocm7.2|gfx*)
  instead of the whole URL, so a mirror base path containing a gfx/rocm7.2 segment
  with a cu*/cpu family is not false-matched onto the 2.11 line.
- setup.ps1: the stale-venv check expects rocm torch only for arches the install
  path maps to a repo.amd.com wheel index; an unmapped/unreadable arch installs
  CPU, so a correct CPU venv is no longer marked stale.
- Tests for each of the above.

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* install: tighten pinned torch-index override edge cases

- install.sh: trim whitespace-only UNSLOTH_TORCH_INDEX_URL/_FAMILY before the
  _torch_index_pinned guard, matching get_torch_index_url, so a blank override no
  longer skips the WSL bootstrap and Radeon/Strix reroutes while detection still
  picks the normal index.
- install.sh / install.ps1 / setup.ps1 / install_python_stack.py: force the torch
  2.11 floor only for the gfx families with the <2.11 _grouped_mm bug (gfx120X-all,
  gfx1151, gfx1150). A pinned override to gfx110X-all/gfx90a/gfx908 stays on the
  default range, matching the automatic AMD path.
- install_python_stack.py _ensure_cuda_torch: treat an untagged CUDA build under a
  CUDA pin as a family mismatch (reinstall), and match cuXXX pins narrowly (cu +
  digits) so a custom/current mirror leaf no longer forces CUDA over a CPU/ROCm venv.
- install_python_stack.py _ensure_rocm_torch: reinstall when an explicit ROCm pin
  names a different ROCm family than the already-installed ROCm torch (the ROCm
  analogue of the CUDA cuXXX mismatch repair).

Adds tests for each case.

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* install: fix second-order edge cases in pinned torch-index ROCm/CUDA handling

Parse the ROCm torch probe positionally so an empty HIP marker is kept:
CPU/CUDA torch no longer reads as HIP, so the ROCm reinstall is not skipped.
Emit one "<marker>|<version>" line (like the CUDA probe) for a robust parse.

Limit the gfx torch 2.11 expectation to the install allowlist
(gfx120X-all/gfx1151/gfx1150). A pinned gfx110X-all/gfx90a/gfx908 index stays
on the default <2.11 specs, so a correct 2.10+rocm wheel is no longer judged a
mismatch and force-reinstalled every update.

Distinguish an AMD per-arch wheel (three-part +rocmA.B.C) from a generic
pytorch.org wheel (two-part +rocmA.B): a gfx per-arch pin over a generic 2.11
wheel now reinstalls the per-arch wheel, while an already-installed per-arch
wheel is not re-flagged (no reinstall loop).

Mirror all of the above in setup.ps1 via new Test-RocmGfx211Leaf /
Test-CudaFamilyLeaf / Get-RocmPinStaleTags helpers, reused by both the
install-spec path and the stale-venv check so they cannot diverge again.
Require a digit after "cu" (^cu[0-9]) in setup.ps1, install.ps1 and install.sh
so a mirror leaf like /custom or /current is not branded CUDA and does not
rebuild the venv every run.

Add tests: CPU/CUDA probe -> has_hip_torch False; gfx110X-all pin + 2.10 wheel
not stale; gfx1151 pin + generic 2.11 wheel stale; gfx1151 pin + per-arch wheel
not stale; /custom and /current not CUDA; plus cross-language allowlist and
cu-digit parity guards, and a PowerShell unit test for the new setup.ps1 helpers.

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* Fix ROCm/gfx pin case normalization, ROCm-tag requirement, and CUDA-leaf classification

Normalize torch-index leaves to lowercase before the gfx*/rocm*/cu* allowlist
matches so the canonical gfx120X-all (capital X) gets the torch 2.11 floor in
install.sh (leaf, flavor and repairable helpers). Require an installed +rocm
local tag before a rocmX.Y or non-2.11 gfx pin is judged satisfied in
setup.ps1 Get-RocmPinStaleTags and the Python _rocm_pin_family_mismatch, so an
untagged CPU/CUDA wheel never leaves the pin unapplied. Classify a leaf as CUDA
only via ^cu[0-9]: the Python _TORCH_BACKEND derivation now uses
_is_cuda_family_leaf, and install.sh brands cuda only on cu[0-9]* (unset on an
unknown /current /custom mirror leaf) so the stack probes the GPU instead of
skipping ROCm repair. Add bash, Python and PowerShell tests for capital
gfx120X-all floor, current/custom not-cuda, and untagged-wheel ROCm pins.

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* install: converge torch-index pin detection via a per-venv marker

Introduce a torch-index MARKER that records the exact wheel --index-url used
after each successful torch install, so `unsloth studio update` / repair makes
the "did the pinned index change?" decision by an EXACT string compare rather
than inferring it from the wheel +rocm/+cu version tag. The tag cannot encode
the AMD per-arch gfx family (two 2.11 gfx indexes both install +rocm7.13.0), so
the tag heuristic missed a gfx1151 -> gfx120X-all switch and a custom-URL swap.

Marker path is per-venv (.unsloth-torch-index), one line = the resolved index
URL, written atomically (temp + rename). Path, format and normalization are
shared across all four installers (install.sh, install_python_stack.py,
setup.ps1, install.ps1).

- Reapply gfx pins on a per-arch target change: the marker's exact compare
  reinstalls when the pinned index differs, even when both wheels share a tag.
- Honor custom ROCm URL pins during repair: an explicit index whose leaf is not
  rocm/gfx/cu/cpu (e.g. simple, current) now reinstalls torch VERBATIM from the
  pin when it differs from the marker ("URL wins verbatim").
- Align the KNOWN-2.11 rocm/gfx set to exactly rocm7.2 plus the gfx allowlist
  gfx120x-all/gfx1151/gfx1150 in every language; stop treating an unknown newer
  rocm (rocm7.3, which does not exist) as the 2.11 line speculatively.

Backward compatible: with no marker (old venvs, torch installed out-of-band) the
existing +rocm/version-tag heuristics still decide, and a matching marker never
reinstall-loops. A cu128 CUDA pin stays a CUDA pin; custom and current leaves are
not CUDA. Adds marker tests (py/sh/ps) plus cross-installer parity checks.

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* install: keep the torch-index marker additive to flavor validation

Three narrow fixes in the marker-based stale-venv detection:

- setup.ps1: a matching marker no longer overwrites the detected installed
  flavor. The marker compare is now an additional rebuild trigger, so a stale
  wheel (torch swapped to a +cpu build while the marker still records a cuXXX
  pin) is still caught by the flavor check instead of being masked as up to date.

- setup.ps1: a supported AMD arch carrying CPU torch is no longer marked stale
  and wiped. The downstream AMD Windows ROCm override upgrades CPU torch to ROCm
  in place, so wiping first would delete the venv and abort with "Virtual
  environment not found". Only a genuinely wrong CUDA wheel still rebuilds.

- install.sh: the Radeon --find-links path records its repo.radeon.com base in
  the marker instead of the generic pytorch.org ROCm fallback index, so a later
  pin to that generic family correctly reinstalls rather than comparing equal.
  Mirrors install.ps1/setup.ps1, which already record the real AMD index.

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* install: honor custom pins and repair pinned venvs in place

Four follow-ups to the torch-index marker work:

- install_python_stack.py: _ensure_cuda_torch/_ensure_rocm_torch now bail when an
  explicit custom-index pin names no known torch family, so a verbatim URL override
  (a private/simple mirror) is not clobbered by auto-detected CUDA/ROCm wheels
  before _ensure_verbatim_torch_index applies it.

- install_python_stack.py: the ROCm marker is additive, not a substitute -- a
  matching marker still runs the family/version check so a wheel swapped after the
  marker was written is caught. Mirrors setup.ps1.

- setup.ps1: a stale venv under an explicit pin, whose torch still imports, is
  repaired in place (force-reinstall torch from the pin in the dependency pass)
  instead of wiped. The wipe path only delegates to install.ps1, so on a direct
  update it stranded the user at "Virtual environment not found" instead of
  applying the new pin. A broken venv or unpinned drift still wipes/delegates.

- install.ps1: when a pinned ROCm install fails over to a CPU base, the marker now
  records the CPU index actually used instead of the ROCm pin, so the next managed
  setup does not see CPU torch under a ROCm pin and abort as stale.

* setup.ps1: keep the ROCm CPU-fallback force line the pr5940 test guards

5c93ffd4 folded the pin-change force-reinstall into the ROCm CPU-fallback
condition on one line, so the exact literal that test_pr5940_followups.py checks
(if ($ROCmCpuFallback) { $cpuForce = @("--force-reinstall") }) no longer appeared
and the test failed. Split the two conditions into separate if lines: the ROCm
fallback line is restored verbatim and the pin-change force is its own line. Both
still set $cpuForce to the array, so @splat passes one arg.

* install: honor exact CUDA/custom index URL pins in the torch-index marker

Address three Codex review findings on the torch-index marker mechanism:

- install.sh: after the ROCm CPU repair reinstalls torch from the generic
  $TORCH_INDEX_URL, record that as the marker source. A Radeon --find-links
  install set _TORCH_MARKER_INDEX_URL to its repo.radeon.com base earlier, so
  leaving it made the marker misreport Radeon wheels and a later Radeon pin would
  compare equal and skip a needed reinstall.

- install_python_stack.py: _ensure_cuda_torch now consults the exact-URL marker
  (_marker_pin_mismatch) when the installed +cuXXX tag matches the pinned leaf,
  so a same-leaf CUDA mirror change (official cu128 to an internal cu128 mirror)
  is reinstalled and re-recorded instead of skipped.

- _normalize_index_url / _normalize_family_leaf (install.sh, setup.ps1,
  install_python_stack.py): lowercase only KNOWN wheel-family leaves (rocm/gfx/
  cpu/cuXXX) so gfx120X-all still matches gfx120x-all, while a custom
  (unknown-family) leaf keeps its case so a verbatim URL pin like /Current does
  not compare equal to /current. Tests updated to assert the refined behavior.

* install: fix 3 torch-index marker edge cases (CPU mirror pin, Radeon leaf, migrated venv)

Addresses three review findings on the torch-index override path:

1. CPU index URL change on an already-CPU venv. _ensure_cpu_torch returned
   early whenever torch was already a CPU build, so a standalone update that
   moved the pin (official /cpu -> a private UNSLOTH_PYTORCH_MIRROR /cpu, same
   +cpu tag) never reinstalled. It now consults the exact-URL marker and
   reinstalls only when _marker_pin_mismatch reports a different index,
   mirroring the CUDA/ROCm same-family handling. A matching marker (or none)
   still leaves CPU torch untouched, so there is no reinstall loop.

2. Radeon find-links directory misclassified as a pip ROCm family. A
   repo.radeon.com/.../rocm-rel-7.2.1 leaf starts with "rocm" but is a
   find-links listing, not a pip --index-url. The old startswith(("rocm",
   "gfx")) test routed it into a --index-url reinstall that fails against
   find-links. New _is_pip_rocm_family_leaf gates on ^rocm\d / gfx (matching
   install.sh's rocm[0-9]* and setup.ps1's ^(rocm[0-9]|gfx)), so a Radeon URL
   routes to the verbatim/marker path instead.

3. Migrated venv rewriting its marker to a pin it did not install. install.sh
   and install.ps1 write the marker unconditionally, so a migration that
   preserves existing torch recorded the newly requested pin and a later
   update then found a matching marker and skipped the reinstall the pin
   needs (e.g. a per-arch gfx1151 -> gfx120X-all switch, identical +rocm tag).
   Both now track _TORCH_INSTALLED_THIS_RUN and write the marker only when
   torch was actually installed or repaired this run.

Also add Get-NormalizedFamilyLeaf to the setup.ps1 helper-extraction list in
test_torch_index_marker.ps1 (it was added to setup.ps1 and the shell test in an
earlier round but missed here) and add two unit tests covering findings 1 and 2.

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* install: keep pinned torch repairs on the pinned index

Two fixes for explicit index pins (UNSLOTH_TORCH_INDEX_FAMILY / _URL):

1. install_python_stack.py's repair paths ran uv without clearing the
   inherited uv index env vars. uv resolves the default index (--index-url
   or --default-index) at the LOWEST priority, so a UV_INDEX or
   UV_EXTRA_INDEX_URL mirror in the environment won for any package it
   served: a cu128-pinned repair could install torch from the mirror and
   then record the cu128 marker it never used. Verified empirically: with
   UV_EXTRA_INDEX_URL=.../cu126 exported, uv pip install torch
   --index-url .../cu128 resolves torch 2.13.0+cu126. Strip the four uv
   index env vars for pinned-index commands only, mirroring the gate
   install.sh, install.ps1 and setup.ps1 already have; non-pinned installs
   keep the user's mirror.

2. install.ps1 routed any pinned leaf matching rocm* through the ROCm
   --default-index path, so a custom find-links leaf like rocm-rel-7.2.1
   was treated as a PEP 503 ROCm index and could silently fall back to CPU
   torch on resolution failure. Require a digit after rocm, matching
   install.sh's rocm[0-9]* and install_python_stack.py's ^rocm\d.

Adds parity + unit tests for both (11 new tests).

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* install: keep pinned repairs off UV_TORCH_BACKEND and narrow setup.ps1's rocm pin match

Round 2 of the pinned-index hardening:

1. _build_uv_cmd converted UV_TORCH_BACKEND into --torch-backend before the
   new env isolation could act, and uv's torch backend redirects torch
   resolution to its own per-backend index even when --index-url is given
   (verified: a cu128-pinned dry run with UV_TORCH_BACKEND=cpu resolves
   torch 2.13.0+cpu). Pinned-index commands now never receive the flag and
   UV_TORCH_BACKEND joins the stripped env vars, so uv cannot re-read it.

2. setup.ps1's pinned reroute had the same bare rocm* glob install.ps1 had:
   a custom find-links leaf like rocm-rel-7.2.1 was routed through the ROCm
   --index-url path instead of the verbatim unknown-pin path. Now requires
   a digit after rocm, matching install.ps1, install.sh and
   _is_pip_rocm_family_leaf.

3. The marker test's case-normalization checks used -eq, which is
   case-insensitive in PowerShell, making them vacuous, and the unknown-leaf
   expectation was written lowercased while the implementation deliberately
   preserves custom-leaf case. Tightened to -ceq with the case-preserving
   expected value.

Adds unit + parity tests for 1 and 2 (5 new tests).

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* install: extend the pinned-index guards to every remaining surface

Round 3 of the pinned-index hardening, closing the same holes on the
surfaces the earlier rounds missed:

1. install.sh's pinned-install env scrub now clears UV_TORCH_BACKEND (uv's
   torch backend redirects torch resolution to its own per-backend index
   even against --default-index), and both PowerShell wrappers clear it in
   their pinned-install scrubs, matching install_python_stack.py.

2. setup.ps1's marker stale check still classified any rocm* leaf as a
   PyTorch ROCm family while the install selection is digit-gated, so a
   custom rocm-current / rocm-rel-7.2.1 pin stale-compared as
   not-rocm vs rocm and force-reinstalled on every studio update. The
   stale check now uses the same ^rocm\d gate.

3. install_python_stack.py's pinned-command scrub also strips
   PIP_EXTRA_INDEX_URL for the pip fallback: pip adds the env extra index
   in addition to --index-url, so an inherited mirror could satisfy torch
   off the pin while the marker recorded the pinned URL. PIP_INDEX_URL
   needs no strip since the explicit --index-url flag overrides it.

Parity + unit tests extended (4 new tests).

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* install: scrub find-links and carry the pinned scrub through pip fallbacks

Round 4 of the pinned-index hardening:

1. UV_FIND_LINKS joins every pinned-install scrub (install.sh, install.ps1,
   setup.ps1, install_python_stack.py): uv's --find-links locations can
   satisfy torch off the pinned index the same way an extra index does.

2. setup.ps1's Fast-Install restored the scrubbed vars in its finally
   BEFORE the pip fallback ran, and never touched the pip env vars at all,
   so a failed uv attempt fell back to python -m pip with an inherited
   PIP_EXTRA_INDEX_URL / PIP_FIND_LINKS able to win over the pinned
   --index-url. The scrub now wraps the whole function (uv attempt + pip
   fallback) and includes the pip vars; restore happens after both.

3. install_python_stack.py's scrub also strips PIP_FIND_LINKS for its own
   pip fallback, completing the PIP_EXTRA_INDEX_URL fix from round 3.

Parity tests extended (2 new tests).

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* install: digit-gate rocm leaves in marker normalization and ROCm side effects

Round 5 of the pinned-index hardening (three custom-rocm-leaf edge cases):

1. _normalize_family_leaf lowercased every leaf starting with rocm, so a
   custom mirror leaf like rocm-Current compared equal to its lowercase form
   and a case-only pin change was skipped. URL paths can be case-sensitive.
   The rocm prefix is now digit-gated (rocm[0-9]*, matching
   _is_pip_rocm_family_leaf) in install.sh, setup.ps1 and
   install_python_stack.py, so only true family leaves (rocm7.2) are
   lowercased; a custom rocm-* leaf keeps its case.

2. setup.ps1 Test-MarkerPinMismatch compared normalized URLs with -ne, which
   is case-insensitive in PowerShell, so a case-only marker change (Simple
   vs simple) was treated as matching and the reinstall skipped. Now -cne.

3. install.sh gated the AMD bitsandbytes install and the "repair ROCm torch"
   --default-index reinstall on a bare whole-URL rocm glob, so a custom
   CPU/CUDA/private index whose leaf merely starts with rocm (rocm-current)
   was force-repaired from the wrong ROCm-only path whenever torch.version.hip
   was empty. Both now gate on _torch_index_is_rocm_family, computed once from
   the digit-gated leaf (rocm[0-9]*/gfx*).

Tests: 4 new parity assertions plus 2 case-sensitivity marker checks.

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* install: apply an explicit custom torch-index pin on the first update

Round 6: an explicitly-set custom (unknown-family) UNSLOTH_TORCH_INDEX_URL
was silently ignored on the first `studio update` of a venv that predates
the marker feature, on both platforms, because the no-marker case was
treated as "do nothing" and the version-tag heuristics cannot judge an
unknown leaf.

1. install_python_stack.py _ensure_verbatim_torch_index now reinstalls
   verbatim when the marker is ABSENT (None), not only when it differs, and
   short-circuits only when the marker already records this exact pin. It
   then writes the marker, so every later update is a no-op. A user who did
   not set the override gets pin=None and is untouched, so an out-of-band
   torch install is never clobbered.

2. setup.ps1: for an unknown-family pin on a marker-less venv the stale-venv
   check now sets PinChangedForceReinstall so the torch block reinstalls in
   place from the pin. It deliberately does NOT set shouldRebuild, which
   would wipe the venv and strand a direct `studio update`.

3. setup.sh (the Linux `studio update` entry point) skipped
   install_python_stack.py entirely when unsloth was already current, so the
   marker-driven reinstall (both the verbatim custom pin and the cu/rocm
   flavor and family-change repair, e.g. gfx1151 to gfx120X-all) never ran.
   It now forces the dependency pass when a torch-index pin env var is set;
   the pass is idempotent and no-ops when the marker already matches. This
   mirrors setup.ps1's stale-venv pre-check.

Tests: 3 new parity assertions.

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* test: expect first-update reinstall for a no-marker custom index pin

Follow-up to d671d8fb2: _ensure_verbatim_torch_index now applies an
explicit unknown-family URL pin verbatim on the first update when the
marker is absent (instead of no-op), so the old
test_verbatim_custom_url_no_marker_is_noop assertion was stale. Rewritten
as test_verbatim_custom_url_no_marker_reinstalls_once: asserts the one
verbatim reinstall from the pinned URL, that the marker is written, and
that a second call with the pin still set is idempotent (no reinstall
loop).

* install: gate the pinned update pass on the marker and record a pin baseline

Round 8, two follow-ups to the round-6 first-update pin fix:

1. setup.sh forced the full dependency pass on EVERY `studio update` while a
   torch-index pin stayed exported, even after the marker already recorded the
   same pin, turning quick updates into the expensive pass every time. It now
   probes install_python_stack.py --torch-pin-needs-apply (which reuses the
   exact marker normalization) and forces the pass only when the pin is not yet
   applied (marker absent or different); an already-applied persistent pin keeps
   the fast path. A probe error fails safe toward running the pass. setup.ps1
   gets the same probe in its fast path for parity.

2. A known-family full-URL pin on a venv predating the marker (e.g. an installed
   cu128 build and UNSLOTH_TORCH_INDEX_URL pointing at a same-family mirror) left
   the marker absent forever: the _ensure_* helpers deliberately do not force a
   multi-GB reinstall of identical-family wheels on an old venv, so nothing
   recorded the pin and every update re-entered the pass. _record_torch_index_pin_baseline
   now records the resolved pin as a baseline after the ensure sequence when the
   family already matches and no marker exists, so the pin is tracked (a later
   genuine change is detected and applied) and the update loop is broken, without
   the redundant reinstall.

Tests: 3 new baseline unit tests, 4 new parity assertions, and the CLI probe.

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* setup.sh: keep the pin probe's exit 1 from killing the update under set -e

The --torch-pin-needs-apply probe deliberately exits 1 for the common
steady-state answer (pin already recorded, keep the fast path), but it ran
as a bare command under set -euo pipefail, so the whole studio update
aborted before the exit code was even captured. Absorb the status with
|| _PIN_NEEDS_APPLY=$? and pre-seed 0 so all three outcomes route as
documented: 0 runs the pass, 1 keeps the fast path, anything else fails
safe into the pass. Parity test asserts the guard.

* install: strip pin credentials, disable uv config discovery, bound verbatim installs

Four verified fix groups from a 12-reviewer audit of the torch-index
override feature, each reproduced before fixing:

1. Credential persistence: all four marker writers stored the raw pin URL,
   so an authenticated pin (https://user:token@mirror/simple) persisted its
   credentials in .unsloth-torch-index (mode 0644 under a default POSIX
   umask) and install_python_stack.py printed pin URLs verbatim in repair
   messages. Userinfo is now stripped before persisting and in every
   log/substep that interpolates a pin, via lockstep helpers
   (_strip_index_url_credentials in install.sh / install_python_stack.py,
   Remove-IndexUrlCredentials in install.ps1 / setup.ps1). The three
   normalizers strip too, so an OLD marker that already carries credentials
   still compares equal to the same pin: no reinstall loop on upgrade.
   Query strings deliberately stay in the marker; two indexes distinguished
   only by query must not compare equal.

2. uv configuration discovery beat the explicit pin: with a discovered
   uv.toml declaring torch-backend = "cpu" or a [[index]] entry, uv 0.10.12
   resolves torch 2.13.0+cpu against an explicit --index-url/.../cu126 pin;
   UV_NO_CONFIG=1 restores +cu126 (reproduced both ways). The pinned-install
   scrub in all four installers now sets UV_NO_CONFIG=1 and drops
   UV_CONFIG_FILE.

3. The verbatim custom-index update path installed a bare, unconstrained
   torch trio while fresh installs from the same unknown-leaf pin apply the
   supported range; _ensure_verbatim_torch_index now installs the bounded
   trio spec, closing the fresh-vs-update asymmetry.

4. Query-bearing pins (.../cu128?token=x) classified by raw leaf split and
   force-reinstalled on every update (the installed cu128 never equals
   cu128?token=x). Query/fragment are now stripped before leaf
   classification in all four implementations; the marker comparison keeps
   the query per (1).

Rejected after verification (no change): the pin-baseline record cannot
produce a wrong later decision (every pin change still mismatches and
reinstalls from the new pin); the venv temp-file symlink scenarios require
an attacker who already owns the environment; pathological inputs like
" / cu128 / " have no realistic caller and fail loudly.

Parity, stack, rocm-support, marker (sh + ps1), pin-stale, index-url and
flavor suites all pass (455 python + full shell/ps1 batteries).

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* install: harden custom-pin repair against clobber, broken torch, and pip config

Four follow-ups to the pinned-index audit fixes:

1. setup.ps1 routed an unknown-leaf custom pin through the CUDA branch with
   a bare torch trio while install.ps1 (fresh) and the Python verbatim path
   bound the supported range; the pinned unknown-leaf route now applies the
   same torch>=2.4,<2.11.0 bound. Known cu* leaves and unpinned runs are
   unchanged.

2. The final torch safety pass could not repair a clobbered unknown-family
   pin: intermediate dependency steps can pull torch from PyPI (the pass
   exists for exactly that reason), but the verbatim helper short-circuited
   on marker==pin and no flavor tag exists to probe. The helper now keeps a
   per-run snapshot of the installed trio (taken after a verbatim reinstall
   or on the first matching-marker pass) and reinstalls from the pin when
   the final pass sees the trio drifted. Probe failure skips the
   comparison; a reinstall refreshes the snapshot, so no loop.

3. _record_torch_index_pin_baseline could freeze a known-family pin as
   applied on a venv whose torch is missing or broken (every family helper
   returns without reinstalling when its probe fails), making
   --torch-pin-needs-apply report done forever. The baseline now probes the
   installed flavor and records only on a match: a cuXXX pin requires the
   matching +cuXXX tag, cpu requires a cpu build, rocm/gfx requires hip;
   probe failure records nothing.

4. The pinned pip fallback stripped PIP_* env vars but user/site pip config
   files still applied (a configured global.extra-index-url can satisfy
   torch off the pin). PIP_CONFIG_FILE is now pointed at the null device
   for pinned commands (pip loads no config files then), in
   _install_env_for_cmd and setup.ps1's Fast-Install pinned scrub.
   install.sh / install.ps1 have no pip fallback (uv-only), verified.

Tests: 7 new rocm_support tests (snapshot reset fixture), 1 stack test,
2 parity tests. Full battery green (464 python, sh and ps1 suites).

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* install: complete the pin-repair coverage across the fast path and platforms

Three cross-platform follow-ups to the round-2 pin-repair fixes:

1. The --torch-pin-needs-apply probe only compared marker==pin, so a torch
   trio clobbered to the wrong family (a cpu wheel replacing cu128 via a
   later pip install) with a still-matching marker reported "already
   applied" and the _ensure_{cuda,rocm,cpu} repair never ran on the Linux
   fast path. The probe is now a testable _torch_pin_needs_apply() that also
   checks the installed flavor against a known-family pin (via a shared
   _torch_flavor_matches_pin() helper, so the baseline and the probe cannot
   drift). An unknown-family pin has no flavor to validate and a failed
   probe cannot prove drift, so both keep the fast path.

2. macOS ARM (real CPU/MPS torch, not NO_TORCH) never applied an unknown-
   family custom pin on update: both the verbatim path and the baseline
   returned on IS_MACOS while fresh install.sh honors the pin, so the marker
   was never written and setup.sh forced the dependency pass on every update
   forever. The guards are now IS_MAC_INTEL (Intel mac is already NO_TORCH),
   and the final pass applies the pin on macOS ARM.

3. The round-2 final verbatim repair sat in the step-13 sequence guarded
   not IS_WINDOWS, so on Windows a dependency step that clobbered torch after
   the pin was applied was masked by the matching marker (setup.ps1 does not
   re-validate the main venv's torch after calling this script -- verified).
   Step 13 now runs the verbatim snapshot-drift repair on Windows and macOS
   ARM too; the Linux-oriented cuda/rocm/cpu family helpers stay Linux-only.

Tests: 13 new rocm_support cases (flavor drift, macOS ARM, Windows repair),
parity updates. Full battery green (475 python, sh and ps1 suites).

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* install: strip query tokens from the marker and tighten the pin-drift probe

Four follow-ups to the round-3 pin-repair fixes:

1. The credential stripper feeding the torch-index marker and the logged repair
   messages dropped only user:pass@ userinfo, so a private feed that carries its
   auth token in the query string (.../simple?token=SECRET) persisted the token
   in the world-readable marker (mode 0644 under a default umask) and printed it
   in substep output. All four strippers (install.sh, install.ps1,
   studio/setup.ps1, install_python_stack.py) now drop the query and fragment
   before building the sanitized URL. A query is not part of a PEP 503 index's
   identity, so this also stops a rotated token from spuriously mismatching the
   marker and forcing a needless reinstall.

2. The --torch-pin-needs-apply fast-path probe accepted an untagged CUDA build
   (no +cuXXX local tag) under a specific cuXXX pin, but _ensure_cuda_torch
   reinstalls exactly that build to enforce the pin. The probe was more lenient
   than the repair, so the repair pass was skipped on the fast path.
   _torch_flavor_matches_pin now reports a mismatch for an untagged build under a
   cuXXX pin, forcing the pass.

3. The probe's ROCm branch accepted any HIP build for a rocm/gfx pin, while
   _ensure_rocm_torch decides a reinstall with the per-arch
   _rocm_pin_family_mismatch predicate (a generic +rocm7.2 wheel under a per-arch
   gfx pin, or a wrong ROCm version, is a mismatch). The probe now reuses that
   predicate, so it is as strict as the repair. This needs the installed torch
   version, so _probe_torch_flavor now returns (marker, cutag, version) and
   _torch_flavor_matches_pin takes the pin URL (extracting the leaf internally).

4. On Windows a known-family cu*/cpu pin is applied to the main venv by setup.ps1
   before install_python_stack.py runs; a later dependency step can clobber it,
   and the GPU-aware _ensure_{cuda,cpu}_torch self-skip on Windows while the
   verbatim helper handles only unknown-family pins, so nothing repaired the
   clobber (setup.ps1 does not re-validate the main venv's torch afterward,
   verified). New _ensure_pinned_known_family_torch reinstalls a drifted cu*/cpu
   pin in the step-13 Windows/macOS-ARM branch; rocm/gfx per-arch specs stay owned
   by setup.ps1, unknown-family by the verbatim helper.

A speculative ROCm 2.11 floor was also raised but is unreachable: the rocm7.2
index publishes no 2.x wheel below 2.11.0, and an unknown newer rocm is not
floored speculatively.

Tests: query/fragment strip cases in the sh + ps1 marker suites and the Python
strip/marker tests; the tri-state helper and the probe/baseline harnesses moved
to the (marker, cutag, version) flavor with matching versions; new probe cases
(untagged CUDA, generic-rocm-under-gfx) and 8 _ensure_pinned_known_family_torch
tests; a four-way query-strip parity assertion. Full battery green (1150 python,
sh 26/26 marker, ps1 marker/flavor/pin-stale).

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* install: reinstall markerless gfx pins and cap custom-index updates at torch 2.11

Two follow-ups from the pin-marker audit:

1. A markerless venv with a gfx per-arch 2.11 pin trusted the wheel version
   tag, which is byte-identical (+rocm7.13.0) across gfx120X-all / gfx1151 /
   gfx1150. A pre-marker install holding one gfx arch's wheel that is now
   pinned to a DIFFERENT gfx index was therefore never switched:
   _rocm_pin_family_mismatch returns no-mismatch for any three-part +rocm
   2.11 wheel, and _ensure_rocm_torch's absent-marker branch fell through to
   that heuristic. _ensure_rocm_torch now forces a one-time reinstall when the
   marker is absent AND the pin leaf is a 2.11 gfx per-arch index; the reinstall
   writes the marker, so the next update compares exactly and does not loop
   (the correctly-pinned no-reinstall guarantee then comes from the exact marker
   compare, not the ambiguous tag). Non-gfx-2.11 pins (rocmX.Y, non-2.11 gfx)
   stay on the tag heuristic -- their tags are distinguishable.

2. The verbatim custom-index update path used _CUDA_TORCH_PKG_SPEC (torch
   <2.12.0) while a FRESH install of the same unknown leaf caps torch at
   <2.11.0 (install.sh's default TORCH_CONSTRAINT, and setup.ps1's custom-pin
   branch), so a private /simple mirror publishing torch 2.11 could upgrade a
   `studio update` to a state the fresh installer never produces. Added
   _CUSTOM_INDEX_TORCH_PKG_SPEC (torch>=2.4,<2.11.0), used only by the verbatim
   path; companions stay pinned for the same exclusive --index-url ABI reason
   as _CUDA_TORCH_PKG_SPEC (a bare name could pull a torch-2.12-built
   torchvision). _CUDA_TORCH_PKG_SPEC is unchanged (known-family cu/cpu repair
   correctly tracks install.sh's widened cu ceiling).

Tests: 2 new markerless-gfx cases (one-time reinstall + marker write + no-loop
second run, and the rocmX.Y absent-marker no-op), the pre-existing markerless
gfx no-reinstall test flipped to assert the one-time reinstall (it had encoded
the old tag-trusting behavior), and the custom-index bound assertions. 488
passed.

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* install: a matching marker must not mask a broken, clobbered, or misclassified torch

Four round-6 follow-ups, all closing cases where a matching torch-index
marker wrongly vouched for a torch that is not actually the pinned one:

1. _is_cuda_family_leaf matched cu+digits by PREFIX (^cu[0-9]), so a custom
   mirror leaf like cu128-private classified as CUDA family; the flavor check
   then compared the installed cu128 tag to the whole leaf cu128-private and
   forced a reinstall on EVERY update (never converging). The cu family is
   now matched EXACTLY (re.fullmatch cu[0-9]+), so a cu-suffixed custom leaf
   routes through the verbatim/unknown path with a stable marker. Mirrored in
   install.sh (_normalize_family_leaf: strip cu, require an all-digit
   remainder) and setup.ps1 / install.ps1 (^cu[0-9]+$).

2. _torch_pin_needs_apply returned False on a failed torch probe (missing or
   unimportable) under a matching marker, so setup.sh kept the fast path and
   a broken torch was never repaired. A failed probe now forces the pass: the
   marker cannot vouch for a torch that does not import, forcing is idempotent,
   and once torch imports again the probe succeeds and the forcing stops
   (self-resolving). Reverses the round-4 conservative choice for this case.

3. _ensure_verbatim_torch_index snapshotted the installed trio on the first
   pass with a matching marker and treated an unimportable torch (snapshot
   None) as "no drift, skip", so a torch clobbered to a broken state before
   the run was masked. A None snapshot now reapplies the pin. A torch
   clobbered to a WORKING-but-wrong build under an unknown-family pin remains
   undetectable from metadata (no flavor tag; reinstalling every update would
   be the loop this avoids) and is documented as a known limitation.

4. The step-13 Windows final repair reran only the verbatim (unknown-family)
   and known-family cu*/cpu paths, so a clobbered explicit rocm/gfx pin (the
   wheel setup.ps1 installed from AMD's per-arch index) was left in place. The
   branch now also runs _ensure_rocm_torch on Windows for an explicit rocm/gfx
   pin; it has a Windows path and no-ops when torch already links HIP, so it
   only reinstalls a genuinely clobbered ROCm venv (loop-safe).

Tests: the round-4 failed-probe-trusts-marker test flipped to force the pass;
new cases for the cu-suffix no-loop, the broken-torch verbatim reinstall, and
the Windows rocm final-repair structure; item-2 exact-cu parity assertions.
490 passed. sh/ps1 marker + flavor + pin-stale suites all green.

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* install: repair Windows ROCm pins from the pinned URL and honor NO_TORCH

Four round-7 review items, two of them regressions in the round-6 work:

1. _torch_pin_needs_apply ignored UNSLOTH_NO_TORCH. With a torch-index env
   var set and no marker, the failed-probe branch forced the dependency pass
   on every `studio update`, and the pass (which also honors NO_TORCH) never
   installs torch or writes a marker, so nothing could ever stop the forcing.
   It now returns False immediately under NO_TORCH: the pin only matters once
   torch is actually installed.

2. The step-13 Windows final repair (round-6) restored a clobbered explicit
   rocm/gfx pin by calling _ensure_rocm_torch, whose Windows path reinstalls
   from the arch AUTO-DETECTED via hipinfo, not from the pin. A user pinning a
   different gfx family or a private mirror was restored from the wrong source
   (and the wrong marker written), and a headless box was skipped entirely
   (the arch probe returns nothing). The repair now goes through
   _ensure_pinned_known_family_torch, which reinstalls from the PINNED url with
   the same per-arch floor setup.ps1 uses (2.11-line gfx leaves) or a bare trio
   (older arches, rocmN mirrors). It is gated on IS_WINDOWS since macOS ARM has
   no ROCm, and the existing flavor check keeps it loop-safe (a matching HIP
   wheel is left alone).

3. _ensure_verbatim_torch_index's broken-torch check (round-6) used
   "_installed_trio_snapshot() is None", but that helper reports a REMOVED torch
   as "torch==absent" (a non-None tuple) and a broken import as the stale
   on-disk version, so a missing or unimportable torch under a matching marker
   was read as "no drift" and skipped. The matching-marker path now confirms
   torch health with an import probe (_probe_torch_flavor): a torch that does
   not import reapplies the pin, while a healthy torch keeps the snapshot-based
   intra-run drift detection.

4. A unit test for _ensure_cpu_torch did not pin NO_TORCH False like its
   siblings, so a suite run with UNSLOTH_NO_TORCH=1 in the environment made the
   guard return early and the reinstall assertions fail spuriously.

Tests: the round-6 broken-torch verbatim test re-encodes the non-None
"torch==absent" snapshot case (the exact state the old "is None" check missed);
new Windows-ROCm pinned-repair cases (reinstall from the pin, per-arch floor vs
bare spec, matching-wheel no-op, off-Windows no-op); a NO_TORCH fast-path probe
case; the parity test now asserts the Windows final branch does not auto-detect
the ROCm index and that the helper reinstalls from the explicit pin. 494 passed.

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* install: floor the rocm7.2 index in the Windows pin repair; isolate marker tests

Three round-8 review items, two of them downstream of the round-7 changes:

1. _ensure_pinned_known_family_torch gave a rocm<d> index leaf a bare
   torch/torchvision/torchaudio trio while flooring only gfx* leaves, so a
   Windows venv clobbered under an explicit rocm7.2 pin could reinstall an
   unbounded or ABI-mismatched trio from that exclusive --index-url. It now
   mirrors the spec the initial ROCm paths pin: the rocm7.2 floor for 2.11-line
   gfx leaves and rocm<d> leaves that serve torch 2.11, the <2.11 default for
   older rocm versions, and a bare trio only for older gfx per-arch leaves
   (which publish no floor), matching _ROCM_TORCH_PKG_SPECS / _ensure_rocm_torch.

2. test_verbatim_custom_url_no_marker_reinstalls_once called
   _ensure_verbatim_torch_index twice; the second call now hits the
   matching-marker health probe, and with pip_install mocked torch never becomes
   importable, so in a no-torch environment _probe_torch_flavor returned None and
   forced another reinstall, failing the idempotence assertion. The test now pins
   a healthy flavor so the idempotence check is about the marker, not ambient
   torch.

3. The TestEnsureRocmTorchMarker fixture patched os.environ per test but not
   _TORCH_BACKEND, which install_python_stack.py computes once at import from
   UNSLOTH_TORCH_BACKEND. A runner starting with a cuda/cpu backend made
   _ensure_rocm_torch early-return and skip the mocked repair these tests
   exercise. The fixture now neutralizes _TORCH_BACKEND so the marker tests are
   independent of the caller's installer-pin environment.

Tests: the Windows floor-spec test now asserts a rocm7.2 mirror pin uses the
rocm7.2 floor (not bare), plus a new rocm7.1 case that must fall back to the
<2.11 default; the marker suite passes under a hostile
UNSLOTH_TORCH_BACKEND=cuda / UNSLOTH_TORCH_INDEX_URL env. 495 passed.

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* install: apply same-flavor pin repoints, keep ROCm fallback nonfatal, bound custom companions

Four round-9 review items, two of them regressions in the round-7 pin helper:

1. _ensure_pinned_known_family_torch returned as satisfied whenever the installed
   flavor matched the pin, so a same-flavor SOURCE change (one /cpu or /cu128
   mirror to another, or a gfx1151 -> gfx120x-all per-arch switch, both carrying
   the same wheel tag) was never applied, while _torch_pin_needs_apply kept forcing
   the pass on the marker mismatch forever. It now also reinstalls when the marker
   records a DIFFERENT index of the same flavor, rewriting the marker so the next
   update matches (no loop), exactly as the Linux _ensure_{cuda,cpu}_torch helpers
   do. An absent marker on an already-matching venv is still left to the baseline
   recorder (no forced reinstall of a correct pre-marker venv).

2. That helper reinstalled a Windows ROCm pin with the FATAL pip_install, so when
   setup.ps1 had taken its CPU fallback (the pinned AMD index unavailable), the
   final repair re-hit the same missing index and aborted the whole install. The
   ROCm reinstall is now nonfatal (pip_install_try): on failure it leaves the CPU
   base in place and writes no ROCm marker, so the install completes -- matching
   _ensure_rocm_torch's Windows path. cu*/cpu pins stay fatal (authoritative source).

3. install.sh left torchvision/torchaudio bare for a pinned custom/unknown-leaf
   index (a private /simple mirror), unlike the Python update path's
   _CUSTOM_INDEX_TORCH_PKG_SPEC, so a mirror also exposing newer companion wheels
   could resolve a torch-2.12-built torchvision against the capped <2.11 torch. It
   now bounds the companions (torchvision>=0.19,<0.26.0 / torchaudio>=2.4,<2.11.0)
   for a custom leaf, gated on an empty _expected_torch_flavor_tag so known families
   keep their curated bare/floored companions.

4. install.sh's _expected_torch_flavor_tag matched cu[0-9]* by prefix, so a custom
   leaf like cu128-private classified as the cu128 family and force-reinstalled a
   correct +cu128 wheel on every run. It now requires exact cu+digits (routing the
   suffixed leaf to the custom path), matching the Python re.fullmatch(cu[0-9]+) and
   PowerShell, and feeding item 3's custom-leaf detection.

Tests: new cases for the same-flavor marker-change reinstall, the nonfatal ROCm
fallback (no marker on failure), the rocm7.2/older-rocm floor selection now split
across the nonfatal path, cu-suffixed custom leaves in test_torch_flavor.sh, and the
custom-leaf companion bounds in test_torch_constraint.sh. 497 python + 143 shell
assertions pass; the marker suite still passes under a hostile
UNSLOTH_TORCH_BACKEND=cuda env.

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* install: bound custom-pin companions on the Windows setup path; isolate pin-probe tests

Two round-10 review items:

1. setup.ps1's custom/unknown-leaf pin branch capped only torch ($cudaTorchSpec)
   and still asked the exclusive index for bare torchvision/torchaudio, so a
   private mirror that also serves newer companion wheels could install a
   torch<2.11 wheel alongside a torchvision>=0.26 / torchaudio>=2.11 built for a
   newer torch ABI, after which the marker records the pin as applied. It now
   bounds the whole trio (torch>=2.4,<2.11.0 / torchvision>=0.19,<0.26.0 /
   torchaudio>=2.4,<2.11.0) for a pinned non-cu-family leaf, matching install.sh,
   install.ps1's fresh pinned install, and install_python_stack.py's
   _CUSTOM_INDEX_TORCH_PKG_SPEC. This completes the companion-bounds fix across all
   three installers; known cu* leaves keep bare specs (the family index bounds them).

2. The _torch_pin_needs_apply probe tests did not pin NO_TORCH False, so a test
   process launched with UNSLOTH_NO_TORCH=1 short-circuited the probe (the round-7
   guard) and returned False for cases that expect the pass to run. The _needs_apply
   helper now patches NO_TORCH (default False) around the call, and the dedicated
   no-torch case passes no_torch=True explicitly.

Tests: the cross-platform parity test now asserts setup.ps1 bounds the full trio
(not just torch) for a custom leaf; the pin-probe suite passes under a hostile
UNSLOTH_NO_TORCH=1 environment. setup.ps1 parses clean; 497 python + shell suites
green.

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* install: bound custom rocm-* pins, redact diag tokens, snapshot custom pins before base update

Three round-11 review items, all reproduced before fixing:

1. install.sh's custom-index companion bounds gated on _expected_torch_flavor_tag
   returning empty, but that helper returned "rocm" for ANY rocm* leaf, so a custom
   mirror whose leaf starts with rocm but is not a pip family (a private rocm-current
   mirror, a Radeon find-links rocm-rel-7.2.1) escaped the bounds and installed bare
   torchvision/torchaudio. It now digit-gates rocm to rocm[0-9]* (matching the Python
   _is_pip_rocm_family_leaf ^rocm\d), so those custom leaves return "" and the <2.11
   companion caps apply; real rocm7.2 / gfx per-arch indexes still classify as rocm.

2. _tauri_torch_index_family classified by the raw last path segment, so a pinned URL
   carrying auth in the query (.../rocm7.2?token=SECRET) had the token echoed verbatim
   into the emitted [TAURI:DIAG] line. It now strips query/fragment before classifying
   (mirroring the marker/log credential stripping), so no token reaches the diagnostic
   output; as a side effect .../cu128?token=x now classifies as cu128 instead of auto.

3. On studio update, the core package step (a newer unsloth can require a torch the
   custom pin does not satisfy, pulling a default PyPI trio) runs BEFORE the step-2b
   verbatim check, which then recorded the already-clobbered trio as the baseline for a
   matching marker and left the pin unapplied. A new _capture_verbatim_baseline() records
   the pre-clobber trio before the core step, so the verbatim pass detects the drift and
   reapplies the pin. Captures only for a matching custom pin with importable torch; a
   mismatched/absent marker or broken torch is left to _ensure_verbatim_torch_index.

Tests: _expected_torch_flavor_tag rocm-current / rocm-rel cases; _tauri_torch_index_family
token/fragment redaction with a no-leak regression guard; _capture_verbatim_baseline
record/skip cases plus an end-to-end clobber-detection scenario; a structural guard that
the capture runs before the core step. 501 python + shell suites pass; install.sh bash -n
clean, shellcheck unchanged from base.

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* install: match rocm family leaves exactly, enforce the rocm7.2 torch line, repair a broken pinned torch

A pinned index is a pip ROCm --index-url family only when its leaf is an exact
rocm<digits> / rocm<digits>.<digits> (rocm7.2) or a gfx* per-arch leaf. The prior
^rocm[0-9] prefix match also caught suffixed private-mirror leaves (rocm7.2-private,
rocm7-current), routing them through the ROCm/companion-family path instead of the
verbatim pin: the companion bounds were skipped and, on a pre-marker venv with a
compatible +rocm wheel, the pin was never applied. Match the family exactly through one
shared helper at every site:
  - install_python_stack.py: _is_pip_rocm_family_leaf (re.fullmatch), plus the two other
    loose gates it feeds (_normalize_family_leaf, _torch_flavor_matches_pin).
  - install.sh: a new _is_pip_rocm_family_leaf routes _expected_torch_flavor_tag,
    _torch_index_repairable, _normalize_family_leaf and the ROCm side-effect gate.
  - setup.ps1: a new Test-PipRocmFamilyLeaf routes Get-NormalizedFamilyLeaf and both
    pinned reroutes; install.ps1 anchors its reroute regex.

_rocm_pin_family_mismatch (and its setup.ps1 mirror Get-RocmPinStaleTags) compared only
the ROCm version, so a +rocm7.2 wheel whose torch release drifted off the 2.11 line
(2.12/2.13 from an out-of-band upgrade or a custom rocm7.2 mirror) satisfied the family
check while violating _ROCM_TORCH_PKG_SPECS['rocm7.2'] (torch>=2.11,<2.12). Flag it stale
so the repair reinstalls to floor; >=2.11 alone is not enough, so the release is compared
exactly against the 2.11 line for a KNOWN-2.11 rocm pin.

_ensure_pinned_known_family_torch returned on a failed import probe, but
_torch_pin_needs_apply forces the dependency pass on that same failed probe: a broken
torch under a known-family pin was left in place and the pass was forced on every update.
Treat an unimportable torch as drift and reinstall the pinned trio (the spec and marker
derive from the pinned leaf, not the absent flavor); once it lands the probe succeeds and
the fast path returns.

Tests: exact-match cases across test_torch_flavor.sh, test_rocm_support.py,
test_cross_platform_parity.py and the two .ps1 helper suites; the rocm7.2 release-line
and broken-probe-reinstall cases; extraction lists updated for the new helpers.

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* install: anchor the PS pinned-ROCm floor gate and bound install.ps1 custom-pin companions

Round 12 made every family CLASSIFIER exact, but the Windows install-flow floor gate reads
$_pinRocm211 directly from the raw pinned leaf with an unanchored -match '^rocm(\d+)\.(\d+)'
BEFORE any exact classification runs. A suffixed custom leaf (rocm7.2-private) matches that
rocm7.2 prefix, so it takes the 2.11-floor branch and is force-routed through the ROCm
install path before the exact-match elseif can send it to the verbatim install. Anchor the
match ($) in both install.ps1 and setup.ps1 so only an exact rocmX.Y leaf is floored; a
suffixed or newer-suffix leaf falls through to the verbatim path. The Python floor
selection is already exact (dict lookups gated on _is_pip_rocm_family_leaf), so only the two
PS scripts needed this.

install.ps1's custom (non-cu-family) pinned-torch install bounded torch>=2.4,<2.11.0 but
left torchvision/torchaudio bare, so a private mirror serving newer companions could pull a
wheel built for a newer torch ABI while the marker records the pin as applied. Bound both
companions (torchvision>=0.19,<0.26.0 / torchaudio>=2.4,<2.11.0) when the leaf is not a
cu<digits> family index (a cu index bounds its own resolution), matching setup.ps1's
Test-CudaFamilyLeaf gate and _CUSTOM_INDEX_TORCH_PKG_SPEC.

Tests: parity guards for the anchored floor gate in both PS scripts and for install.ps1's
bounded custom-pin companions.

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* install: tighten comments in the torch-index-override paths

Collapse the verbose comment and docstring blocks added across the installer
scripts and their tests to fewer, clearer lines without changing behaviour.
Remove a duplicated CUDA-spec comment block. Comments/docstrings only; no code
changes (AST-verified).

* install: repair a broken pinned torch on Linux, strip trailing slash in tauri family, count the final step

_ensure_cuda_torch / _ensure_cpu_torch returned on a failed import probe (torch present but
unimportable). With an explicit CUDA/CPU pin, _torch_pin_needs_apply forces the dependency
pass on that same failed probe, and the base package update does not force-reinstall an
already-installed torch distribution, so the broken torch was left in place and the pass
reran every update without repairing it. Treat a failed probe under a pin as drift and
reinstall from the pinned index (the reinstall rewrites the marker and the next probe
imports, so no loop). This is the Linux counterpart of the known-family repair fix.

_tauri_torch_index_family stripped the query/fragment before classifying but not a trailing
slash, so a token-authenticated pin like .../cu128/?token=x collapsed to .../cu128/ and fell
through the exact-suffix */cu128 and */cpu arms to "auto". Strip a trailing slash too,
mirroring _torch_index_url_leaf.

The Windows / macOS-ARM final torch-repair step (_ensure_pinned_known_family_torch) runs a
progress step that base_total never counted (the final-step increment was gated to Linux),
so _STEP ran one past _TOTAL on those platforms. Add the missing increment.

Tests: broken-probe reinstall for the CUDA (family and URL pins) and CPU paths; trailing
slash / slash+token cases for _tauri_torch_index_family; a full-flow progress-count guard
asserting _STEP == _TOTAL on Windows and Linux.

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* install: tighten comments in the torch-index-override paths

* install: harden the torch-index pin across all four installers

Redact index-URL credentials from captured install logs before they print on
failure. uv/pip failure text embeds the failing --index-url verbatim, so a
user:token@ or ?token= secret could leak into the console. Add a shared
redaction pass (_redact_install_output / Redact-InstallOutput) wired into the
error-output dump in install.sh, install.ps1, setup.ps1 and
install_python_stack.py. Verbose mode still streams live uncaptured output, so
it is intentionally left unredacted (developer opt-in).

Trim trailing slashes on the PATH only for a verbatim UNSLOTH_TORCH_INDEX_URL
override, preserving a ?query/#fragment token. A whole-URL rstrip corrupted a
base64 token ending in "/", and a single-slash strip left .../cu128//
classifying as an empty leaf. Add _trim_index_path_slashes /
Trim-IndexPathSlashes and route the override through it; strip ALL trailing
slashes in the backend-branding leaf classifier so a double slash still yields
the real leaf.

Reject a trailing-dot ROCm leaf (rocm7.) in the bash family validator so it
matches Python re.fullmatch(rocm\d+(?:\.\d+)?) and the PowerShell regex: both the
major and the minor must be non-empty digits, so rocm7. is a custom verbatim pin,
not a pip ROCm family.

Scrub PIP_NO_INDEX and PIP_INDEX_URL for a pinned install in the two installers
that have a plain-pip fallback (install_python_stack.py, setup.ps1):
PIP_NO_INDEX=1 makes the fallback ignore every index including the pinned
--index-url, and PIP_INDEX_URL replaces it. install.sh and install.ps1 install
via uv --default-index (which ignores pip config/env), so they are unaffected.

Add unit tests (bash, Python, PowerShell) and cross-platform parity tests
covering credential redaction, path-only slash trimming, the rocm7. validator,
the double-slash leaf, and the PIP_NO_INDEX/PIP_INDEX_URL scrub.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* install: redact captured torch-install output and warn on a failed pinned ROCm repair

Close a redaction gap the earlier pass missed: setup.ps1's direct
`Fast-Install ... | Out-String` branches (ROCm from $ROCmIndexUrl, CPU/CUDA from
$TorchInstallIndexUrl, plus the Triton and T5 sub-venv installs) printed the
captured $output verbatim on failure, bypassing Redact-InstallOutput. A private
index carrying userinfo or a ?token= in the pin could leak into Windows Studio
setup logs. Route every `Write-Host $output` through Redact-InstallOutput.

Warn on a failed pinned Windows ROCm reinstall in
_ensure_pinned_known_family_torch: the branch printed "reinstalling from it" then
called pip_install_try, but had no else, so a failure continued silently and left
the user believing the pin was applied while the old CPU/wrong torch survived.
Mirror the auto-ROCm Windows path and warn, telling the user to retry.

* install: redact captured output on the pip fallback and optional-install failure paths

The uv install path already redacted its captured output, but pip_install's pip
fallback runs through run(), which printed result.stdout verbatim on failure, and
_print_optional_install_failure did the same. A pinned --index-url carrying
userinfo or a ?token= could still leak there when uv is unavailable or the pip
fallback also fails. Route both through _redact_install_output. The verbose
pip_install_try path stays raw (developer opt-in), matching the other installers.

* install: split the survive-updates marker subsystem into a follow-up

The torch-index override PR grew a persisted per-venv marker plus repair
machinery (stale-pin detection, verbatim re-apply, update-time reinstall
triggers) that roughly doubled it. That subsystem is orthogonal to the core
feature and is being reworked in a follow-up (versioned/hashed marker,
full-URL pin baseline), so it moves there wholesale instead of shipping
twice.

What this PR still does: UNSLOTH_TORCH_INDEX_URL / UNSLOTH_TORCH_INDEX_FAMILY
pick the torch wheel index at install time in all four installers, with the
exact rocm/gfx/cpu/cu leaf classification, the torch 2.11 floor for the
per-arch AMD indexes, bounded companions for custom leaves, credential
redaction of captured installer output, path-only slash trimming, and the
uv/pip index env scrubs. Flavor-based repair keeps honoring the pin: a wrong
family under an explicit pin still reinstalls from the pinned URL, and
setup.ps1 repairs a pinned stale venv in place instead of wiping it.

What moves to the follow-up: the .unsloth-torch-index marker file and its
writers/readers/normalizers, exact-URL pin-change detection on update
(same-tag gfx switches, custom-mirror repoints), the verbatim trio snapshot
and clobber re-apply, the pin-baseline recorder, and the
--torch-pin-needs-apply fast-path probe in setup.sh / setup.ps1. Their tests
(the marker sh/ps1 suites, the stale-pin suite, and the marker classes in the
rocm/cuda/parity suites) move with them; the removed code is preserved on a
local archive branch to seed that PR.

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* install: re-apply a ROCm pin over an existing HIP wheel via the version tag

The subsystem split left an explicit ROCm/gfx pin unenforced on `studio
update` whenever the venv already imported ANY ROCm torch: the pinned
reinstall lived inside the `elif not has_hip_torch` branch, so a rocm6.4 to
rocm7.2 switch, a gfx1151 pin over a generic +rocm7.2 wheel, or a broken
2.12+rocm7.2 drift never re-applied the pin.

Restore the markerless half of that detection: _rocm_pin_family_mismatch
compares the pinned leaf against the installed wheel tag (exact rocmX.Y
compare, the 2.11 gfx per-arch allowlist, the untagged-wheel rule), the HIP
probe emits "<hip_marker>|<version>" again so the installed tag is available,
and _ensure_rocm_torch reinstalls from the pinned URL when the tag mismatches
even though HIP torch is present. setup.ps1 mirrors it: the stale-venv check
routes a pinned rocm/gfx leaf through Get-RocmPinStaleTags instead of
collapsing it to a generic "rocm" flavor, and the existing pinned in-place
repair (no wipe) applies the change.

What still waits for the follow-up marker PR, by design: pin changes the
wheel tag cannot see -- a per-arch switch between two 2.11 gfx indexes
(identical +rocm7.13.0 tag), a custom-mirror URL repoint under the same
family leaf, and unknown-family verbatim pins. Those need the persisted
index record.

Tests restored with the code: the _rocm_pin_family_mismatch table, the five
update-path cases (older-rocm reinstall, gfx-over-pre-2.11 reinstall,
matching-pin no-reinstall, non-2.11 gfx no-reinstall, gfx-over-generic-2.11
reinstall), the "|" probe-format guards, and the AST-extracted
Get-RocmPinStaleTags suite for setup.ps1.

* install: compare major-only rocm pins, redact URL fragments, bound pinned CPU trio

Three review fixes on the restored pin-repair path.

The family classifier accepts a major-only rocm<d> leaf (rocm7), but the
mismatch comparators only parsed rocmX.Y, so a rocm7 pin fell through to the
2.11-line fallback and INVERTED both verdicts: an installed +rocm6.4 wheel
compared as satisfied (pin never re-applied) while a matching +rocm7.2 wheel
compared as stale (reinstall loop). Major-only pins now compare on the major
alone in _rocm_pin_family_mismatch and Get-RocmPinStaleTags: rocm6.x under a
rocm7 pin is a mismatch, any rocm7.x satisfies it, an untagged wheel never
does, and a bare +rocm tag with an unreadable version is accepted (matching
the existing lenient unreadable fallback).

The output redactors scrubbed userinfo and ?query= values but not #fragments,
so a pin like https://mirror/whl/cu128#token=secret leaked the secret in
captured uv/pip failure text -- inconsistent with the URL handling itself,
which already treats fragments as sensitive. All four redactors gain a
URL-anchored fragment rule (anchored so a bare "# comment" line in tool
output is never touched).

setup.ps1's CPU branch installed a bare torch/torchvision/torchaudio trio;
fine for the unpinned host default, but a PINNED cpu index routes through the
same branch and the /cpu index serves newer torch, so a fresh pinned CPU
install could land an unsupported trio that _ensure_cpu_torch then keeps
(it accepts any CPU build). Under a pin the branch now installs the bounded
trio mirroring _CPU_TORCH_PKG_SPEC (torch>=2.4,<2.12.0 and matching
companions); the unpinned path is unchanged.

Tests: major-only rows in the Python mismatch table and the AST-extracted
setup.ps1 suite; fragment + query-plus-fragment + bare-hash-comment cases in
all four redactor suites; a parity check that the pinned CPU trio bounds
exist, are gated on the pin, and mirror the Python repair spec.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* install: tighten comments in the torch index override paths

* tests: track the moved pass-through inheritance in the gguf order check

Main moved the llama_extra_args pass-through inheritance out of the
GGUF branch into _resolve_inherited_extra_args, which runs before it,
so the source-order assertion's "if request.llama_extra_args is None"
anchor no longer exists inside the branch and the check failed after
the main merge. The test now asserts the same property in the current
shape: inheritance before the GGUF branch (a carried --no-mmproj still
shapes the hub guard's companion requirement), and marker, hub guard,
unload in order within the branch. Full file passes (32 tests).

* tests: anchor the inheritance order check on the call, not the definition

source.index("_resolve_inherited_extra_args(") matched the function
definition, which always precedes the endpoint, so the ordering
assertion was vacuously true. Anchoring on "= _resolve_inherited_
extra_args(" pins the first call site inside the load endpoint (line
4505), which is the statement whose position relative to the GGUF
branch the test is meant to guard. 32 tests pass.

* tests: align the gguf order test with main

Main fixed the stale ordering assertion in PR 7252; adopting its
version verbatim removes this file from the branch diff entirely and
avoids a conflict on the next main merge. 32 tests pass.

* install: bound the companion constraints to torch's window everywhere

A full platform x vendor validation matrix over this branch surfaced a
real trio mismatch on the cpu/mac paths: torch is capped <2.11 (installs
2.10.0+cpu) but the bare torchaudio companion resolves 2.11.0+cpu,
because torchaudio 2.11 dropped its exact torch pin. Reproduced in a
sandboxed end to end cpu install. torchvision still exact-pins torch and
self-corrected.

The default companion constraints are now bounded to torch's window
(<0.26 / <2.11) and widen together with the cu* torch window (<0.27 /
<2.12), so every leaf resolves a paired trio. Verified with uv dry-runs
on the cpu, cu130, and rocm6.4 leaves (2.10.0/0.25.0/2.10.0,
2.11.0/0.26.0/2.11.0, 2.9.1/0.24.1/2.9.1) and a rerun of the sandboxed
cpu install, which now lands torch 2.10.0+cpu with torchaudio
2.10.0+cpu.

The Strix WSL reroute now also forwards UNSLOTH_TORCH_INDEX_URL and
UNSLOTH_TORCH_INDEX_FAMILY into the rerouted 24.04 distro; dropping
them silently reverted the child install to auto-detection, defeating
the pin this branch introduces.

test_torch_constraint.sh updated: the bounded companions must appear at
the defaults and the custom-leaf block, no bare companion may remain,
and the cu* widen must carry the companions with it.

* install: harden the override path against reroute drift and credential leaks

Review sweep focused on default-path idempotency found no defects on the
unset path; these fixes cover the override path and failure reporting.

install.sh:
- The early WSL Strix Halo distro reroute now honors an explicit index
  pin (UNSLOTH_TORCH_INDEX_URL / _FAMILY): the pin is used in the current
  distro instead of probing the GPU and re-entering another distribution,
  matching the contract of the later Radeon and Strix guards. Whitespace
  only values do not gate, in parity with get_torch_index_url.
- Verbose mode now streams installer output through the credential
  redactor; it previously bypassed the redaction the quiet path applies.
  The exit code survives the pipe via an rc file since the script runs
  under plain sh with no pipefail.
- The kept-release fallback warning now strips credentials from the
  index URL before printing it.

install.ps1:
- Bounded torchvision and torchaudio next to every capped torch install
  (custom pin, ROCm CPU fallback, CUDA flavor repair). torchaudio 2.11
  dropped its exact torch pin from the wheel metadata, so a bare
  companion beside torch<2.11 can resolve a mismatched 2.11.0 build,
  cu family indexes included. Mirrors the install.sh companion bounds.

studio/install_python_stack.py:
- The verbose failure path now redacts index URLs in pip and uv output
  before printing, matching every other output site in the file.

All sh, ps1 and python installer test suites pass (the host-defaults
suite has a known pre-existing failure unrelated to this change).

* install: redact verbose Windows installer output and repair the parity tests

Follow-ups to the override-hardening commit, from review:

- install.ps1 Invoke-InstallCommand and setup.ps1 Invoke-SetupCommand now
  pipe verbose output through Redact-InstallOutput per record, and the
  three verbose Fast-Install torch call sites (ROCm, CPU, CUDA) do the
  same: uv and pip echo the pinned index URL, credentials included, in
  their errors, and verbose mode previously bypassed the redaction the
  quiet paths apply. ForEach-Object and Out-Host leave $LASTEXITCODE
  untouched, verified with a native command exiting 7 behind the pipe.

- test_cross_platform_parity.py: the install.ps1 companion-bounds
  assertion now matches the implemented behavior (bounds on every index,
  no cu-family exemption, since torchaudio 2.11 dropped its exact torch
  pin) instead of requiring the removed $_pinCuLeaf gate.

- test_rocm_support.py: the WSL reroute guard test slices the whole
  function body to its closing brace instead of a fixed 1200-character
  window, which the new pin-gate preamble had outgrown.

428 tests pass across the parity, install stack and rocm support suites;
the sh and ps1 installer suites pass unchanged.

* install: tighten comments in the torch-index and ROCm/CUDA repair paths

* install: digit-gate the gfx family leaf and honor ROCm pins in the Windows repair

Two review follow-ups on the override path:

- The pip ROCm family predicate accepted ANY gfx-prefixed leaf, so a
  custom verbatim pin like /gfx-private classified as a ROCm family and
  enabled the ROCm-only side effects (AMD bitsandbytes, ROCm torch
  repair) on a mirror that may serve CPU/CUDA wheels. gfx now requires a
  following digit (gfx90a, gfx1151, gfx120X-all), consistently in
  install.sh, install_python_stack.py, install.ps1 (family gate and
  expected-flavor classifier) and setup.ps1, matching the strictness the
  rocm side already had (rocm7.2-private stays verbatim). The broader
  backend BRANDING globs are unchanged on purpose: radeon repo leaves
  (rocm-rel-X.Y) must still brand the rocm backend without being
  force-repaired as a family.

- The Windows branch of the ROCm torch repair always installed from the
  public per-arch index, ignoring an explicit ROCm-family pin: after a
  pinned setup.ps1 install failed to a CPU base, the repair retried
  repo.amd.com instead of the pinned index. The branch now resolves
  _explicit_rocm_torch_index_url() first, uses it as the install index
  when set, and mirrors the Linux pin contract by skipping the NVIDIA
  and gfx-detection gates a pin is documented to override.

Source-assertion tests updated to the tightened predicate and the new
repair label. 1165 tests pass across the parity, install stack and
studio install suites; the sh and ps1 suites pass; both PowerShell
installers parse clean.

* Remove scratch archives accidentally committed with the comment pass

The temp/ archive copies of installer and test files were working
scratch, not PR content, and inflated the diff by about nine thousand
lines.

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
2026-07-20 00:58:52 -07:00
Naitik Pal
cf912cbd88
feat(studio): add UNSLOTH_LLAMA_CPP_BACKEND env var to force CPU fallback #7213 (#7228)
* test(studio): add e2e test for cpu-fallback overriding vulkan

* feat(studio): add UNSLOTH_LLAMA_CPP_BACKEND env var

* feat(studio): add UNSLOTH_LLAMA_CPP_BACKEND env var

* Preserve UNSLOTH_LLAMA_CPP_BACKEND=cpu across llama.cpp updates for PR #7228

The in-app updater rebuilt the installer command without --cpu-fallback and
only re-asserted Vulkan, so accepting a llama.cpp update after forcing CPU on
an Intel iGPU host re-ran host detection and routed back to the crashing Vulkan
bundle (#7213). Record install_kind in the prebuilt marker and re-assert
--cpu-fallback on update when the installed bundle is CPU.

Also make setup.sh's UNSLOTH_LLAMA_CPP_BACKEND check case-insensitive to match
setup.ps1, and add tests for the updater CPU preservation and the setup.sh flag
plumbing.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* Trim and validate UNSLOTH_LLAMA_CPP_BACKEND, warn on unknown values for PR #7228

Trim surrounding whitespace and lowercase the value in both setup.sh and
setup.ps1, so values like ' cpu ' or 'CPU' still force the CPU-only prebuilt.
An unrecognized value (e.g. 'gpu') now prints a warning instead of silently
falling back to auto. Extend test_setup_llama_cpp_backend.py to cover both
scripts, including trimmed, empty and unknown values.

* Preserve arm64 CPU installs on update and honor CPU override in Windows prune for PR #7228

The update-path CPU preservation only matched install_kind ending in -cpu, so
arm64 CPU bundles (linux-arm64, windows-arm64) were re-routed to a GPU or source
build on update. Match the full set of CPU-only kinds instead.

Persisting install_kind also activated the previously inert Windows
mismatch-prune in setup.ps1: on a GPU host with UNSLOTH_LLAMA_CPP_BACKEND=cpu it
saw the windows-cpu marker as mismatched and deleted it every rerun. Normalize
the override once and make CPU expected so a deliberate CPU install is kept.
Extend the tests to cover both.

* Document legacy llama.cpp markers keep heal-to-GPU on update for PR #7228

Legacy prebuilt markers written before install_kind was persisted intentionally
do not force --cpu-fallback on update: the in-app updater lets them re-resolve
(heal to a GPU bundle) per the existing behavior from #6097, and only markers
that explicitly record a CPU install_kind are pinned to CPU. Add a comment and a
regression case documenting the boundary.

* Tighten llama.cpp CPU-fallback comments for PR #7228

* Fix Windows install-prune to keep valid Intel/fallback bundles for PR #7228

Persisting install_kind activated the setup.ps1 mismatch-prune, whose
expectedKinds was incomplete: the non-NVIDIA/non-AMD branch omitted
windows-vulkan (the Intel auto-route) and the GPU branches omitted the
windows-cpu/windows-arm64 fallback the installer uses when a GPU prebuilt is
missing. That made every setup rerun delete and re-download a valid Intel Vulkan
(or CPU-fallback) install. List all kinds the installer can produce per host so
only a bundle the host cannot run is pruned. Cover the full matrix in tests.

* Persist force_cpu marker flag so only forced CPU installs re-assert on update for PR #7228

* Add --force-cpu for deliberate CPU installs and warn on macOS for PR #7228

* Record force_cpu when reusing a matching CPU bundle for PR #7228

* Accept force_cpu keyword in installer test validator fakes for PR #7228

---------

Co-authored-by: danielhanchen <unslothai@gmail.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Daniel Han <danielhanchen@gmail.com>
2026-07-20 00:33:56 -07:00
Michael Han
6d8c18cd1a
Replace standalone Studio wording with Unsloth (#7221)
* Replace standalone Studio wording with Unsloth

Replace the single word Studio with Unsloth wherever it is used as
shorthand for Unsloth Studio in docs, CLI output, UI strings, i18n
locales, workflow display names, comments and docstrings.

Kept unchanged: the full name Unsloth Studio, third party product
names (LM Studio, Visual Studio, Mac Studio), feature names
(Recipe Studio, Fine-tuning Studio and its translations), and all
identifiers such as env vars, commands, paths and filenames.

* Address review feedback on the Studio wording rename

Use "an" before Unsloth where the rename left the article as "a".
Restore the split brand where Unsloth and Studio render as two halves
of the full product name: the onboarding sidebar subtitle and the
IPv6 localhost warning. Scope two messages to the full name Unsloth
Studio where plain Unsloth was misleading: the AMD README bullet and
the CLI studio setup error.
2026-07-19 00:47:04 -07:00
Michael Han
9db639f708
Stabilize Studio regression tests (#7192)
* Stabilize Studio regression tests

Rebuild on current main. Restore the set-membership sidebar account-block matcher
(#6647, which fixed the same order-sensitive regex, was reverted on main, so the
guard is failing on main again) and keep the watchdog replacement-race fix, whose
blocked-watchdog stub now waits without a timeout so a superseded watchdog stays
alive until cleanup regardless of scheduler load.

* Tighten the blocked-watchdog stub comment

---------

Co-authored-by: Daniel Han <unslothshared@gmail.com>
2026-07-18 05:54:00 -07:00
oobabooga
1c7bce427e Revert "Feat/model picker per model config (#6647)"
This reverts commit 8cbdfbe355.
2026-07-17 07:38:46 -07:00
Eyera
8cbdfbe355
Feat/model picker per model config (#6647)
* refactor(studio): move chat model picker into features/model-picker

Relocate model-selector + its support files from components/assistant-ui
into a self-contained features/model-picker feature (own barrel), mirroring
the modular Hub layout. Pure move + import repoint; no behaviour change.

* feat(model-picker): add per-model config persistence layer

Superset PerModelConfig (customContextLength, kvCacheDtype, speculativeType,
specDraftNMax, tensorParallel, chatTemplateOverride, trustRemoteCode) persisted
to localStorage (unsloth_model_configs) with schema versioning + LRU budget.
KV-dtype and speculative value sets match main's sidebar (no q4_0/ngram-simple).
Reuses features/hub/lib/model-identity for normalization; adds storage-key layer
and applyPerModelConfigToRuntime (sets tensorParallel, which the old PR omitted).

* feat(picker): modular backend for chat-template validate + default fetch

New studio/backend/picker package (schemas/service/routes) mounted at /api/picker:
- POST /api/picker/validate-chat-template (Jinja syntax validation, no false positives)
- GET  /api/picker/chat-template/{model_name} (default template from tokenizer_config.json,
  reusing get_cache_path/resolve_cached_repo_id_case; graceful null, no model-code exec)
Frontend api/templates.ts client + hooks/use-model-defaults lazy cache. No backend
changes to the existing inference load route (per-model load fields already supported).

* feat(model-picker): bind picker on-device list to shared hub inventory

Picker now sources cached + local models from useHubInventory (the Hub's shared
store) via a thin adapter, replacing its own /api/models/* fetchers + module
caches. Hub, download manager, and picker now share one source of truth, so
completed downloads reflect in the picker automatically. Partial/live-download
rows are filtered from the cached lists (unchanged rendering). Local naming/search
preserved via additive LocalInventoryRow modelId/displayName. Variant expander,
scan-folder management, recommended-fit, search, external providers untouched.

Known minor: cached 'Downloaded date' sort tiebreak degrades to alphabetical
(hub cached rows carry no mtime); default 'recent' (load-time) sort preserved.

* feat(model-picker): per-model config step inside the picker

Picking a (non-external) model now opens an in-picker config view built from
main's current load controls (context length, KV cache dtype, speculative
decoding, draft tokens, tensor parallel) plus a chat-template editor backed by
the picker validate/default endpoints. 'Remember for this model' persists the
config per model+variant; Run forwards the config to the existing load flow via
meta.config. External models bypass the step. Two-view orchestration lives in
model-selector (single interception point); pickers.tsx call sites untouched.
trustRemoteCode dropped from PerModelConfig to preserve main's per-load consent.

* feat(chat): apply/persist per-model config through the load flow

handleCheckpointChange threads meta.config into the selection; stageOrLoad and
the autoload/Hub-run paths now apply the picker config (explicit pick or saved
remembered config) via applyPerModelConfigToRuntime before staging/loading, with
keepSpeculative set so a remembered speculative mode survives the model switch.
Replaces the old remembered-load-settings seeding (resolveInitialConfig now the
single source). SelectedModelInput carries config.

* refactor(chat): remove per-model load config from the right sidebar

The load knobs (context, KV cache, speculative, draft tokens, tensor parallel)
and the chat-template editor now live only in the picker config step. The sheet's
Model section keeps the staged Load/Cancel flow (config is applied at pick time);
sampling params, system prompt, and RAG are unchanged. Deletes the superseded
remembered-load-settings module + the store's applyRememberedLoadSettings action,
removes the now-dead sheet state/imports, and points the settings reset at
unsloth_model_configs. Delete-cleanup deferred (stale config is LRU-capped).

* fix(model-picker): remove leftover sidebar-staging cogwheel + empty Model section

The downloaded-variant gear (ModelLoadSettingsAction) staged a model straight
into the right-sidebar Run-settings flow -- the old 'configure before load' path
now fully replaced by the in-picker config step. Removed the gear + its component.
Also gate the sheet's 'Model' section to staged picks only (pendingSelection):
after the load-knob strip its content is staged-only, so it was rendering an
empty section header whenever a model was merely loaded.

* chore(chat): remove dead per-model-config setters + modelControlsDisabled

After the load-config UI moved into the picker, the store's per-model setters
(setKvCacheDtype/setSpeculativeType/setSpecDraftNMax/setTensorParallel/
setCustomContextLength/setChatTemplateOverride) had zero callers
(applyPerModelConfigToRuntime writes via setState), and the sheet's
modelControlsDisabled was unreferenced. Verified dead across the whole tree.

* fix(chat): config-step Load actually loads (ignore Load-on-selection)

Root cause: with Settings > Chat > 'Load on selection' turned OFF, the config
step's load went down the deferred-staging path -- opening the right sidebar with
'<model> is staged, not loaded yet / Choose Load model'. The in-picker config step
IS the deliberate load action, so its Load now loads immediately (or downloads +
auto-loads when not cached) regardless of the toggle. Renamed the button
'Run model' -> 'Load model' to match. Native/dropped picks still honor the toggle.

* refactor(chat,hub): retire 'Load on selection' — config step is the only load flow

The in-picker config step (and the Hub Run button) now fully supersede the old
stage-to-sidebar flow, so the Load-on-selection toggle is removed everywhere:
- chat stageOrLoad: every pick loads immediately, or downloads + auto-loads when
  not cached (the previous default behaviour, now universal).
- hub Run: drops the stage branch; downloaded GGUFs load directly with their saved
  per-model config (no collision with the chat config step — both end at selectModel).
- store: removed loadOnSelection field/setter/key/default; Settings>Chat toggle and
  its settings-reset entry removed.
- staged sidebar section is now a download-progress view (auto-loads on completion).
No manual staging remains; stageModel is used only for background auto-load downloads.

* feat(model-picker): default chat template from GGUF + thread variant through config flow

Read the embedded tokenizer.chat_template from GGUF files (read_gguf_chat_template
in gguf_metadata) and use it as the per-model default. Plumb gguf_variant through
the picker service, /api/picker/chat-template route, frontend templates API, and
use-model-defaults so the right variant's template is fetched.

Also refine the picker config-page/model-selector wiring, drop the dead
ggufNativeContextLength runtime path, and add the per-model-config storage keys to
the settings prefs export.

* feat(model-picker): read safetensors chat template + hide editor where it has no effect

Resolve the default chat template for safetensors models: prefer the modern
chat_template.jinja, fall back to the tokenizer_config.json chat_template field,
then chat_template.json (multimodal processor), then the GGUF embedded template.
Applied to local dirs, the HF cache snapshot scan, and the HF remote fetch.

Hide the chat-template editor in the picker for safetensors models — the override
is only applied at load by the GGUF/llama.cpp backend, so editing it on safetensors
currently has no effect. GGUF keeps the editor. Nothing removed; the dialog stays
for when the safetensors apply path is wired up in a later branch.

* fix(model-picker): set legacy-migration flag only after the write succeeds

Set unsloth_model_configs_migrated only once writeMap confirms the migrated
map persisted, so a quota/storage failure no longer marks migration done and
silently drops the user's pre-existing remembered settings — the next load retries.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* MVP model picker fixes

* MVP picker config fix

* MVP safetensors config

* MVP max seq config

* MVP max seq fix

* Fix static max tokens cap ignoring model context

* Fix picker GGUF scan parity

* fix(studio): harden model picker config loading

Apply remembered per-model configs consistently from picker and Hub loads, keep default configs from overriding standing speculative settings, add config access for direct local GGUF files, and support saving or forgetting active model settings without a reload.

* Fix model picker config flow

* Fix model picker config loads

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* Avoid recursive per-model config migration reads

* Apply the displayed context length when loading a GGUF

* Fix template validation, cached template lookup, and failed load rollback

- Validate chat templates with the loopcontrols extension so templates
  that use break or continue tags pass the picker validator, matching the
  inference renderer that already accepts them.
- Read the default chat template from the newest cache snapshot rather than
  an arbitrary iterdir order, so an older cached revision no longer prefills
  a stale template.
- Capture the runtime per-model config before a load and reapply it when the
  load fails, so a failed switch leaves the active model context, KV cache,
  template, and speculative settings as they were.

* Make chat template view only for safetensors models

Custom chat template overrides are applied at inference only for GGUF
models, which pass the template to llama-server. The safetensors backend
renders with the model built-in template and ignores the override, so
editing it would save a value that never loads. For safetensors the
config page now opens the template as a read-only preview with a note
that editing is not available yet. This can become editable once
inference support for custom safetensors templates lands in main.

* Fix model picker config edge cases

- Restore prior runtime config when a load no-ops for the active model
- Cap the picker validator request body via the protected prefixes
- Keep the GGUF context slider max above the loaded context
- Fetch subfolder chat templates for uncached Hub repos
- Show the compare side config when reopening the picker

* Keep saved GGUF context above the fallback ceiling

* Show the model config in the run settings sidebar

* Fix model config sidebar reset and context slider

- Stack the remember toggle and action buttons in the sidebar
- Reset the config to defaults instead of the loaded values
- Fetch the native context so the slider max is not the loaded value

* Fix model picker config and download regressions

- Run picker chat template routes off the event loop
- Depth and root guard local template directory scans
- Restore download manager flow for uncached hub picks
- Apply per model context length on reload
- Import model picker symbols from the feature barrel

* Fix model picker config and cached download sorting

- Restore load settings when a Hub run is rejected mid load
- Reuse one NumericValueInput instead of a duplicate copy
- Fix double decode of the model name in the template route
- Remove the unused reset-to-loaded settings action
- Fix cached model download sorting

* Fix model picker per-model config edge cases

Honor a saved or typed max seq length above the model's native context so
RoPE extended values are no longer clamped and silently overwritten. Allow
typing past native while the slider keeps native as a soft ceiling.

Guard the fetch success paths in use-model-defaults against an aborted
signal, and refetch when the HF token changes.

Hash the chat template content in the sidebar remount key instead of its
length. Enable reset for a GGUF whose native context is unknown, and floor
the context slider max so it can never fall below the min.

* Fix GGUF context auto-fit and gated model config token

Stop forcing a 32768 context when a GGUF native context is unknown so the backend auto-fits to VRAM again, while still honoring an explicit context edit.

Send the HF token as a query param so gated safetensors models resolve their max position embeddings.

Derive model default state during render to drop the set-state-in-effect calls.

* Fix native GGUF context ceiling and guard picker template reads

Restore the native context store field so the sidebar slider keeps the
full ceiling for drag and drop GGUFs. Limit local chat template reads to
the browse allowlist, skip malformed repo ids, and drop unused model
picker exports.

* Fix model picker lint boundaries

* Fix model picker review findings

Chat template editor never seeded its draft. Radix only calls onOpenChange
from internal events, so the seed in the nextOpen branch was dead and a model
with a saved override opened empty. Saving then cleared the override. Drop the
dead branch, treat draft as an untouched sentinel, and reset it on every close.

Uncached Hub picks could auto load a model after the user left the chat. Main
detached the staged pick on route exit and on chat context change. Carry the
context key on the pending pick and skip the load when it no longer matches.

Also clear configTarget when the picker closes, restore the onUpdated ref so
variant rows stop resubscribing on every parent render, skip the LRU write when
the entry is already most recent, import NumericValueInput relatively, and drop
the unused ModelUpdateAction barrel export.

* Preserve GGUF context on active reload

* Fix model picker per-model config regressions

- Stop reloading the already loaded model on re-pick
- Hide infra models from the chat picker
- Detect vision support on cached GGUF repos
- Honor saved maxSeqLength on auto load
- Restore default chat template for local GGUFs
- Warn on save failure and revert config on cancel
- Refetch picker inventory on open
- Persist read only per model config safely

* Fix stale model auto load

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Fix model picker numeric input sizing and constraints

Size value inputs to their content so long context lengths are not clipped,
restrict them to numeric characters, and stop the speculative decoding label
from truncating in the sidebar.

* Fix picker CI tests and harden chat template resolution for PR #6647

- tests: point the descender guard at the moved model-selector.tsx path
- tests: exclude the disabled Reload model button from the regenerate locator so .first targets the real Regenerate
- picker/service.py: reject symlinked template/gguf leaves that resolve outside the browse allowlist (HF cache reads unchanged)
- compare mode: resolve each pane's own remembered chat template instead of inheriting the other pane's from the store

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* Protect future-schema per-model configs from deletion for PR #6647

savePerModelConfig already refuses to overwrite a stored config whose schema version is newer than this client understands, but deletePerModelConfig did not. Unchecking Remember on an older client therefore silently destroyed a newer client's saved config. Apply the same guard on delete and surface the blocked case through the existing saveFailed toast.

* Protect future-schema per-model configs from quota eviction for PR #6647

The save and delete guards already refuse to touch a stored config whose schema version is newer than this client understands, but the quota-eviction path did not, so a full store on an older client could still evict a newer client's config. Skip future-schema entries when evicting and fail the save if the budget cannot be met without them.

* Fix GGUF context persistence, compare context, and rollback settings for PR #6647

Persist a GGUF context override from the user's intent instead of collapsing it against the loaded context, which reintroduced the context-reset (f4838782cb reverted the native-baseline fix). model-config-page now collapses the saved value against native, and use-chat-model-runtime and chat-adapter retain the requested context on load so re-saving another setting keeps the override; a null request stays null so a VRAM auto-fit never becomes a stored override.

shared-composer: a compare pane with no explicit GGUF context now loads at native (0) like single-view, not the session maxSeqLength that silently shrank the shown context.

use-chat-model-runtime: restore the previous model's KV cache dtype and chat template on a failed-load rollback so it runs as it was, not with backend defaults.

* Preserve native path token when reloading the active model for PR #6647

handleReloadActiveModel rebuilt the selection without the store's activeNativePathToken, so reloading a file-picked GGUF after a settings change validated the display label as a repo/path and failed. Thread the active native token through the reload selection so native-loaded models reopen correctly.

* Make picker template validation resilient and accept HF generation tags for PR #6647

Import Jinja lazily inside validate_chat_template so a backend without the optional jinja2 package (GGUF-only installs) still starts instead of raising ModuleNotFoundError at import time. Register a no-op extension for the Transformers {% generation %} assistant-mask tag so pasting a valid HF chat template validates, matching the renderer, rather than being rejected as an unknown tag.

* Honor remembered compare config and parse processor chat_template.json for PR #6647

* Fix failed-load rollback context and processor template map fallback for PR #6647

* Restore speculative decoding config on failed-switch rollback

When a model switch fails after the previous model was unloaded, the
rollback reload restored tensor_parallel, KV cache dtype and the chat
template override, but omitted speculative_type and spec_draft_n_max and
cleared their loaded shadows to null. The previous model therefore came
back running at backend defaults (speculation off) while the UI still
showed it enabled, and the status resync confirmed the off state. Resend
the previous model's speculative settings in the rollback load and keep
the store's active and loaded speculative fields in sync with them.

* Reset max sequence length when a model has no saved config

applyPerModelConfigToRuntime reset every per-model field except
maxSeqLength, which it only wrote when the incoming config had one.
maxSeqLength is the sole field carried on store.params, so selecting a
model with no remembered config left the previous model's value in place
and later loaded the new model at that leaked length. Fall back to the
standing default so an unremembered model loads at its own default.

* Surface a message when a variant update cannot start

startManagedUpdate handled the conflict and error start outcomes but let
busy fall through as if the update began, so the confirm dialog closed
with no job created and the cached variant stayed stale. Show an info
message when the repo is busy with a sibling transfer so the click is
not silently dropped.

* Keep per-model speculative choices out of the global default

A staged load with a per-model or one-off config sets keepSpeculative,
which already skips reading the global speculative preference. The
matching save still ran unconditionally, so the model-specific choice was
written to the global unsloth_chat_speculative_type and a later model with
no saved config started from it instead of Auto. Skip saveSpeculativeType
when keepSpeculative so the per-model choice stays isolated.

* Seed non-active model settings from the app default max length

The Run settings page captured initialMaxSeqLength from the loaded
model's runtime params and fell back to it for a model with no saved
config. Opening settings for a different, unloaded model and clicking
Load then sent the active model's context (for example 64k) instead of
the 4096 default, risking validation failures or OOMs. Seed the default
for non-active models and keep the runtime value only for the active one.

* Prefer sidecar tokenizer chat template over the GGUF copy for variants

_chat_template_from_dir returned the embedded GGUF template first when a
variant was selected, reversing the tokenizer-first precedence of the
no-variant path. A model whose chat_template.jinja or tokenizer_config.json
supersedes a stale embedded template then got the wrong template on
variant selection. Keep tokenizer files first regardless of variant; the
variant only picks which GGUF is the fallback. Adds regression tests for
both the tokenizer-wins and gguf-fallback cases.

* Keep per-model speculative choices load-local in autoload and compare

The interactive load path treats a per-model speculative choice as
load-local and skips writing it to the global default. Autoload and
generalized compare still called saveSpeculativeType unconditionally, so a
remembered off or ngram setting leaked into unsloth_chat_speculative_type
and later models with no saved config inherited it. Persist the global
preference only when the value came from the global settings.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Studio: record the compare pane's loaded context in runtime state so the active model's settings and any reload or save use it, not the previous context

* Studio: notify the user when a Hub autoload can't start because another download for the model is already running, instead of silently dropping it

* Studio: drop the merge's orphaned staged-model store helpers and unused alert imports

The main merge left isPendingGguf and pendingSelectionMatches referencing the
removed PendingModelSelection type, and the alert-dialog/alert imports unused
after the permission-mode dropdown replaced the bypass dialog, so tsc -b failed.

* Studio: cache a null default chat template so the viewer stops re-fetching it

A model with no sidecar or embedded template resolves to a terminal null, but
that result was never cached, so reopening the template viewer re-ran the
backend and Hugging Face lookup every time.

* Studio: detect direct-file GGUFs in run settings so Max Tokens uses their context

A GGUF loaded from a local file or custom folder has no variant label, so the
run-settings panel treated it as non-GGUF and clamped Max Tokens to the session
max_seq_length instead of the loaded GGUF context. Detect it via the reported
GGUF context and the .gguf checkpoint suffix, matching the chat page.

* Studio: prompt to re-select a local model file when its lease expired before reload

A file-picked GGUF is reachable only through a native path token that the
desktop host prunes after a TTL. Reloading reused that token blindly, so a
reload long after the initial load failed with an opaque error. Track the
token's expiry and, when it has passed, ask the user to re-select the file
instead of attempting a doomed reload.

* Fix descender-clipping test to tolerate sidebar layout utilities

The sidebar account-block div carries layout utilities (min-w-0, flex-1)
between 'flex' and 'flex-col', so the descender-clipping guard's regex,
which required 'flex' immediately followed by 'flex-col', no longer matched
and the test failed to locate the account-block div. Generalize the prefix
to allow intervening flex utilities while still capturing the leading-*
class before the collapsible visibility utility and asserting leading-tight,
so the guard against clipped glyph descenders is fully preserved.

* Harden picker chat-template resolution

Enforce the 64 KiB chat-template contract at the validate endpoint's request
model so a direct caller cannot submit a template far larger than the frontend
allows (MaxBodyMiddleware only bounds the whole request body, not this field);
oversized templates now return a clean 422.

Apply sidecar-over-GGUF template precedence globally across cached snapshots
instead of per snapshot. A repo with multiple cached revisions previously
returned the first snapshot's template, so a newer GGUF-only revision could
win over an older revision's maintained chat_template.jinja sidecar, which
contradicted the documented intent that sidecars supersede the embedded copy.

* Guard per-model config against future-schema and lossy migration

Two forward-compatibility gaps in the versioned per-model config store:

- The load/apply path returned and normalized a stored record without checking
  its schema version, so a record written by a newer client was reinterpreted
  under the current schema and applied to a live model load, even though save,
  delete and eviction all refuse to touch future-schema records. Reject
  future-schema records on load too.
- The one-time legacy migration enforced the storage budget without protecting
  the entries it had just migrated and set the completion flag unconditionally.
  When storage was already full of future-schema records (which are unevictable
  by an older client), the migrated entries were the only evictable ones and
  could be dropped while migration was still marked complete. Protect the
  migrated keys during eviction and only mark migration complete when they
  survive, so it retries once space frees up.

* Discard chat-template validation results after the dialog closes

Server-side template validation is async, but closing or cancelling the editor
did not abort it, so a late-arriving valid response still called onSave and
applied a template the user had already dismissed. Track a validation token
that is bumped on close and ignore any validation result whose token is stale.

* Record native lease expiry when loading a picked GGUF from the chip

The pending-native-model chip loaded via stageOrLoad directly, bypassing
loadNativeModelIntent, so activeNativePathExpiresAtMs was never recorded for a
chip-loaded file. A later reload then either skipped the lease-expiry guard
entirely (expiry left null) or compared against a previously loaded file's
stale expiry, so reload could reuse an already-pruned token or wrongly block a
still-valid one. Route the chip through loadNativeModelIntent, which builds the
same selection and records the expiry.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Prefer sidecar template for a directly selected local GGUF file

A direct .gguf file path read its embedded chat template without checking the
parent directory for a maintained sidecar (chat_template.jinja /
tokenizer_config.json), while directory and variant selections already prefer
the sidecar. That let the config editor preview or save a stale embedded
template for the same model depending on how it was selected. Check the parent
directory sidecars first, then fall back to the embedded copy, and cover both
paths with tests.

* Resolve cached chat template per revision, newest first

The earlier change searched every cached snapshot for a sidecar before
considering any snapshot's embedded GGUF template, which let an obsolete sidecar
from an older revision override the newest revision's template. Restore
per-snapshot resolution (newest first): a revision's sidecar still supersedes
its own embedded GGUF copy, but a newer revision is no longer overridden by an
older revision's sidecar.

* Preserve autoload transport conflicts and surface background busy downloads

- When a Hub autoload hits a transport conflict, keep pendingHubAutoLoad bound
  instead of clearing it. Clearing it re-keyed the download surface and its
  cleanup cancelled the conflict the toast tells the user to resolve, so the
  Hub resume affordance was gone the moment it appeared. Return early on
  conflict, mirroring the started branch, so resolving it from the Hub still
  auto-loads on completion.
- The background-download branch handled started and conflict but silently
  dropped a busy outcome, leaving the user with no feedback when a peer variant
  of the same repo was already downloading. Surface the same busy toast the
  autoload path uses.

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Daniel Han <danielhanchen@gmail.com>
Co-authored-by: Lee Jackson <130007945+Imagineer99@users.noreply.github.com>
Co-authored-by: danielhanchen <michaelhan2050@gmail.com>
2026-07-17 06:08:01 -07:00
Michael Han
fb7381f5f2
Keep nested dropdown menus on screen (#7168)
* Fix compact chat submenus

* Apply compact submenu layout globally

* Measure compact submenu overlap

* Measure submenu layout width
2026-07-16 03:13:23 -07:00
Michael Han
1b3d728d78
Fix Settings layout overflow (#7167)
* Fix settings dialog overflow

* Fix compact settings overflow

* Add settings overflow regression contracts

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
2026-07-16 03:12:09 -07:00
Etherl
4cf15938b0
Studio: fix duplicate response model labels and hover (#7049)
* Studio: fix response model badge placement

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Studio: gate response model badge pointer-events behind message hover

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: danielhanchen <michaelhan2050@gmail.com>
2026-07-15 10:45:17 -07:00
Michael Han
c5ae208abb
Compact thinking control in narrow composers (#7150)
* Compact thinking control in narrow composers

* Use UTF-8 in responsive layout tests
2026-07-15 09:58:18 -07:00
Michael Han
300b5f9b41
Fix Studio toast close-button positioning (#7142)
* Fix Studio toast close-button positioning

* Use UTF-8 for locale regression test

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Harden toast close-button positioning

* Limit language menu height

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
2026-07-15 07:43:40 -07:00
Michael Han
bc23135996
Unsloth: appearance palettes, customization options, and control restyle (#7077)
* Unsloth: appearance palettes, customization options, and control restyle

Adds Standard, Classic, and Minimal color palettes to Appearance settings,
each adapting to light and dark mode. Classic is a neutral enterprise look
that reserves its blue accent for toggles, badges, and focus rings; Minimal
is strictly black, grey, and white.

Adds customization options scoped to the active mode: accent, background,
and foreground colors with an in-app color picker, UI and code fonts with a
searchable dropdown covering bundled, device, and imported fonts, font file
import, UI and code font sizes, contrast, pointer cursors, reduce motion,
font smoothing, and translucent sidebar. Settings persist through the
personalization API with backend validation and sync across devices.

Restyles core controls for a cleaner, flatter look in both modes: bordered
white input fields, fully rounded pills for single-row controls, no drop
shadows, simple straight-line chevrons replacing all rounded arrow icons,
and consistent hover tones in dropdown menus. Popovers now portal into the
open dialog so their lists scroll correctly inside modal dialogs.

Moves Language into General settings and Chat defaults into the Chat tab
above the Canvas section.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Unsloth: appearance follow-ups, font options, and settings search

Neutralizes focus and selection rings across all palettes so highlighted
elements, including typing boxes and the selected palette card, never take
the accent color. The custom accent no longer recolors rings.

Restyles the color controls as filled pills showing the hex value inside,
with text and border contrast picked from the color's luminance. Menus in
popovers now match the app's dropdown menus: rounded-lg corners, tighter
padding, accent hover rows, and a bordered search field. Popovers inside
modal dialogs are modal so their lists scroll with the wheel. Outline
buttons share the same dark fills as dropdown triggers.

Adds heading and chat font options next to the UI and code fonts, each
using the searchable font dropdown and persisting through the
personalization API. Removes the translucent sidebar option end to end.

Adds settings search: a search field at the top of the settings sidebar
that filters setting names across every tab, grouped by tab with icons,
and jumps to the tab on click.

* Unsloth: use the shared accent token for dark hover fills

The settings dialog nav, its close button, the model selector, and the
project switcher hovered with hardcoded blue tinted greys (#3a3d43,
#2d2e32) in dark mode while every menu and sidebar uses --accent. All
hover and active pill fills now use the accent token so dark hovers are
the same everywhere and adapt to the active palette.

* Unsloth: settings search polish and jump to matched setting

Widens the settings dialog to 880px and the sidebar column to 248px so
the search field has more room. The search pill aligns with the left
start of the Settings title, gets more spacing above and below, and its
icon and placeholder sit slightly further left.

Search results now jump to the exact setting: rows and sections expose
their label as a data attribute, and picking a result opens the tab,
scrolls the matched row into view, and flashes it briefly.

* Unsloth: settings search bar spans the full nav pill width

The search field now starts and ends at the same edges as the nav hover
pills instead of being inset to the title text.

* Unsloth: address review findings on motion, sync, and font limits

Reduce motion Off now opts back out of the OS reduced-motion preference
for CSS animations via a force-motion class that the media rules skip,
and forcing reduce motion On keeps the loader exceptions (spinners,
loading dots, progress bars) animating.

When the color scheme follows the system, the resolved mode is now part
of the theme store snapshot, so an OS scheme flip re-renders consumers
and reapplies per-mode custom colors instead of leaving stale inline
variables from the previous mode.

Imported fonts get an aggregate size cap (4.4M characters) on both the
frontend sanitizer and the backend model so the persisted store always
fits browser localStorage quotas, with a clear error toast when an
import would exceed it. Backend validation also tightens imported font
names (rejects CSS delimiter characters) and requires strict base64
font data URLs, matching the frontend patterns.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Unsloth: profile toggle to hide the sloth in the chat greeting

Adds a Show greeting sloth switch to Settings > Profile. The chat welcome
hides the mascot when it is off. The preference persists locally and
through the personalization API, with backend validation and tests, and
the row is reachable from settings search in all four locales.

* Unsloth: control restyle, dropdown scrolling, and palette consistency

Settings sidebar puts search on top with the tab list under a small
Settings label. Combobox popups scroll with the wheel inside dialogs by
falling back to manual list scrolling while a dialog scroll lock is
active, and the local model selector popover became modal for the same
reason. Number inputs swap native spinners for a shared grey stepper
that clamps to min, max, and step. Run settings fields in light mode use
the same white fill and border as the settings dialog. Selection and
focus rings derive from each palette's border color instead of near
black, hover borders soften the same way, the Classic sidebar stays
white like Standard, decorative greens follow the palette accent, and
meaning-carrying marks like the hub verified badge keep the brand green
in every palette.

* Unsloth: palette card selection keyed off the palette attribute

Switching palettes restyles the whole page the moment data-palette lands
on the html element, but the React re-render that moves the selection
classes arrives later, so the ring and check briefly stayed on the
previous card with the new palette's colors. The active ring and check
now key off html[data-palette] in CSS, so they swap in the same style
pass that swaps the tokens. Also adds breathing room around the settings
search bar and under the Settings label, shortens the greeting sloth
description, and renames the avatar section to Or pick a sloth profile
picture in all locales.

* Unsloth: restore neutral rings, drop the palette check, sidebar spacing

Puts the ring tokens back to their fixed per palette values and removes
the hover border darkening, undoing the derived border experiment. The
selected palette card no longer shows a check since the ring already
marks it. The settings sidebar search bar, nav pills, and search results
get a little side padding, and the Settings label lines up with the pill
text.

* Unsloth: indicator restyle, sidebar menu customization, edge fade toggle

- Derive focus and selection rings from the border color so indicators
  stay 1px and adapt to every theme and palette
- Suppress mouse focus rings except on pressed controls to remove the
  selection flash on the avatar and palette pickers
- Defer settings panel rendering so the active nav pill updates instantly
- Customizable sidebar user menu with drag to reorder and shortcuts to
  the settings tabs
- Grey hover for the standard light palette instead of green
- Borderless controls in dark mode with fill based focus states
- Profile picture: no picture option, pencil edit icon, atomic selection
- Font dropdowns: narrower triggers and the resolved default shown as
  Inter Variable (Default)
- System prompt border darkens on focus
- New appearance setting to swap edge fades for thin divider lines
- Move the theme bootstrap to an external script to satisfy CSP

* Unsloth: harden theme boot and Firefox scroll container focus

- Guard the theme and palette storage reads separately so a blocked
  localStorage (private browsing) still resolves a mode from the OS
  preference instead of skipping the boot entirely
- Firefox makes scrollable containers keyboard focusable and drew its
  3px UA outline on them; swap it for the app's soft 1px indicator

* Unsloth: make the UI and code font settings reach the font utilities

The theme block declared the sans and mono stacks as literals, so
Tailwind inlined them into every font-sans and font-mono utility at
build time and the runtime overrides from Settings > Appearance never
applied. Reference the :root tokens instead, matching how the color
tokens already work.

* Unsloth: in-dropdown font upload, accent meters and avatar, naming cleanup

- Move font importing into each font dropdown: Upload and Select folder
  sit side by side under the list, imported fonts get an inline remove,
  and the standalone Import font row is gone
- Uploads reuse fonts the user already has (bundled, imported, or
  installed, matched by file name with style suffixes stripped) instead
  of embedding a duplicate copy; only new fonts are embedded
- Folder scan lists font files from a picked folder in every dropdown
  for the session; picking one imports it through the same path
- Fallback avatar uses the control accent with a readable foreground
  instead of the neutral primary that rendered black outside standard
- Monitor bars, progress defaults, sliders, and usage meters use the
  control accent; warning and danger tiers stay amber and red
- User facing strings that called the app just Studio now say Unsloth
  in all four locales, keeping Unsloth Studio and LM Studio intact

* Unsloth: left align the font upload actions and divide them

Upload and Select folder now read from the left like the list items,
with a short vertical rule between the two.

* Unsloth: keep sliders neutral and the chat greeting on Hellix

- Sliders are controls, not meters, so their fill goes back to the
  neutral primary instead of the palette accent
- The base h1 rule reads --font-heading with !important and the chat
  thread root resets that variable to the sans stack, which pulled the
  greeting off Hellix; restore the stack on the greeting element

* Unsloth: move the None avatar cell last and keep footer actions on one line

- None sits after the sloth pictures instead of leading the grid
- Upload shrinks to its label so Select folder no longer wraps

* Unsloth: size the folder action to its label

Both footer actions now hug their content so the hover pill does not
stretch across the leftover row width.

* Unsloth: separators only between unrelated settings clusters

Rows inside a titled section are related, so the per row divide-y is
gone from SettingsSection. A SettingsGroupDivider marks the two real
boundaries in the theme section (colors to fonts, fonts to contrast)
and the Clear all chats row gets its destructive border back now that
divide-y no longer draws one for it.

* Unsloth: balance the two font upload actions

Both actions share the footer row evenly again; nowrap keeps Select
folder on one line at the narrower width.

* Unsloth: drop the theme section dividers and split the chat menu groups

The colors, fonts, and contrast rows read fine without rules, and the
chat menu gains its one real boundary between the pin toggles and the
disclaimer rows.

* Unsloth: normalize oversized sidebar menus and reject newline font data URLs

Two backend validation fixes in PersonalizationCustomization:

- sidebarMenu refused any list longer than the number of distinct ids
  because Field(max_length) is enforced before the dedupe validator runs.
  A stale or duplicated payload that would normalize to one entry per id
  was rejected outright, defeating the normalizer that exists for exactly
  that case. Cap the incoming list at a generous multiple so it reaches
  the validator; a pathologically long list is still refused.

- The imported font dataUrl validator used re.match on a pattern ending
  in $, which also matches just before a trailing newline, so
  "data:font/woff2;base64,AAAA\n" passed even though the frontend JS
  pattern rejects it. Use re.fullmatch for parity.

Adds covering tests for both.

* Unsloth: preview fonts in their own typeface and slim the color pills

- Every font dropdown entry, the default item, and the closed trigger
  render in the font they name, falling back to the UI stack for
  families the browser cannot resolve
- Color swatch pills drop from 36px to 28px so they sit closer to the
  row label height

* Unsloth: drop the font row and theme section descriptions

The labels carry the meaning on their own; the mode switching note in
particular read long and confusing.

* Unsloth: let the chat greeting follow the heading font setting

The greeting stays on Hellix by default but adopts a chosen heading
font through a --custom-heading-font variable the applier sets only
while an override exists, so the thread root's sans reset for chat
prose no longer hides the user's pick from the greeting.

* Unsloth: divide the theme section clusters and align the color pill height

Separators return between colors and fonts and between fonts and
contrast, and the color pills share the 32px height of the font
dropdown triggers.

* Unsloth: color pills at half the dropdown width

Fixed w-24 against the w-48 font triggers, with tighter padding so the
hex value still fits.

* Studio: update dep-removal test after next-themes was replaced

The frontend no longer declares next-themes or imports it in src (it was
replaced by the custom theme store and boot script), so the checker now
reports its removal as a safe no-op. The C1 and C8 fixtures in
test_frontend_dep_removal.py still asserted next-themes was a used
dependency, which fails the studio frontend CI dependency-removal safety
check. Update C1 to expect a no-op PASS and drop next-themes from the C8
expected failures so the suite matches the checker's correct output.

* Studio: remove unused ageLabel and exportCollectionJsonl helpers

* Studio: fix blocked-storage theme desync, search jump race, font validation

- theme-store.ts: keep an in-memory currentTheme/currentPalette so a selected
  value survives when localStorage is blocked (private browsing). The snapshots
  previously re-read empty storage and reverted React state to the default while
  the DOM already changed. The matchMedia handler no longer re-reads storage, so
  it cannot clobber the in-memory choice; cross-tab storage events still adopt.
- settings-dialog.tsx: the search jump waited a single fixed 60ms for the
  deferred tab panel to render, then silently missed under render lag. Retry
  across animation frames until the target row exists, then scroll and flash.
- settings.py: apply the font-name character check to the four selected-font
  fields (uiFont/headingFont/chatFont/codeFont), and forbid backslash, comma,
  slash and control characters so a name cannot escape the quoted CSS
  font-family or smuggle extra fallbacks. Adds covering tests.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Fix appearance customization edge cases for PR #7077

- Reset all local preferences now also clears palette and appearance customization
- Number input wrapper keeps full width so fields fill their flex/grid cell, and the stepper stays pinned to the field edge
- Number stepper snaps to the min anchored step grid like the native spinner instead of leaving a step-invalid value
- Code font now applies to chat code fences and inline code via a dedicated token
- Reduce motion (on/off) is honored by onboarding/tour confetti and the theme toggle view transition
- Re-importing a font under the same name with new bytes now swaps the FontFace
- Keep local customization when a synced record predates the customization field, and re-push it

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Align client font name sanitization with server validation for PR #7077

sanitizeFont now strips the same characters the backend _FONT_NAME_FORBIDDEN
rejects (backslash, slash, comma, backtick) plus control chars, so a locally
chosen font name can no longer pass the client but fail the personalization PUT
and silently stall appearance sync.

* Address follow-up review items for PR #7077

- Number input wrapper carries React Flow interaction classes (nodrag/nopan/nowheel) so clicking the stepper arrows increments instead of dragging the node
- Preserve local palette and greeting-sloth toggle when the synced record predates those fields, and re-push them, mirroring the customization handling (new paletteSaved and greetingSlothSaved response flags)
- Add settings-search scroll targets (data-settings-label) for the Profile title, description, display name, nickname, and avatar shape rows

* Preserve absent personalization fields on PUT for PR #7077

A stale client that omits palette or customization previously had those
defaults materialized by model_dump() and persisted, which flipped
paletteSaved/customizationSaved to true and defeated the legacy detection.
The PUT now dumps only the request's set fields and merges them onto the
stored record, so omitted fields keep whatever was already stored.

* Persist theme and palette via a fixed allow-list for PR #7077

The theme/palette values reach setTheme/setPalette from the authenticated
personalization sync, which made the CodeQL clear-text-storage query treat
writing them to localStorage as storing sensitive data. Store a re-derived
literal from a constant map instead, so a plain UI preference is not tracked
as sensitive; behavior is unchanged.

* Harden imported-font handling for PR #7077

- syncImportedFonts: a rejected FontFace.load() only clears the registry entry
  if it still points at that face, so a same-name re-import while the old load
  was pending is no longer untracked/leaked.
- Cap imported-font names to the backend length (100) so an over-long name can
  no longer pass the client but fail the personalization PUT and stall sync.
- Add a backend test that a stale PUT preserves an existing stored palette and
  customization (not just that absent fields stay absent).

* Return the merged personalization record from PUT

The PUT /personalization handler returned the request payload, which
Pydantic had already filled with defaults for any field the client
omitted. A partial or stale write (for example a client sending only
theme) therefore got back a response that contradicted both storage and
the next GET: preserved fields like palette and the custom font showed
their defaults instead of the stored values.

Return model_validate(merged) so the response mirrors what was stored.
The stored record is still the full merged dict, so legacy fields the
model does not know about are preserved as before.

* Fix small UI and keyboard-focus defects in appearance settings

- Settings search now scrolls to the result within its destination tab
  instead of a same-named row in the previously rendered deferred tab
  (for example "Storage" and "Models folder" appear in both General and
  Resources).
- The reduce-motion segmented control honors its own Off/On/System choice
  by reading useReducedMotionConfig instead of the OS-only useReducedMotion.
- The color picker saturation/value area is operable by keyboard, so the
  role="slider" surface responds to the arrow keys it advertises.
- Profile avatars and palette cards show a visible keyboard focus ring
  again.
- Guard the persisted appearance-customization write so a blocked or full
  localStorage does not throw out of a store action, matching the theme
  store.
- Import the appearance store symbols from the settings feature barrel.

* Tighten appearance fix comments

---------

Co-authored-by: shimmyshimmer <shimmyshimmer@users.noreply.github.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Daniel Han <danielhanchen@gmail.com>
2026-07-14 05:12:08 -07:00
Long Yixing
c80e7d317a
fix(studio): prevent auth monitor reload loop (#7118) 2026-07-14 05:04:28 -07:00
Daniel Han
2f3eae9846
Studio: resolve llama.cpp prebuilts via the release-assets CDN to avoid GitHub API rate limits (#7086)
* Studio: resolve llama.cpp prebuilts via the release-assets CDN to avoid GitHub API rate limits

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Studio: resolve manifest-named prebuilt assets on the download-host fast path

Add tag-pinned CDN URLs for any manifest artifact whose hash is keyed under an
upstream-tag alias in the checksum asset, so the fast path resolves the same
assets the API path does. Cover the resolve body directly (only download_bytes
stubbed) and soften the doc's validation-equivalence wording.

* Studio: pin llama.cpp fast path to the releases/latest redirect tag

Derive the authoritative latest tag from GitHub's /releases/latest redirect
target instead of trusting the checksum asset's self-reported release_tag, so the
existing release_tag cross-check in parse_approved_release_checksums is a real
check again: a stale or mis-tagged checksum asset now falls back to the API. Pin
every fast-path URL to that tag. Fall back to the API on a manifest 404 as well,
since an in-progress release can publish the checksum asset before the manifest,
matching the sha256 404 handling. Document the releases/latest (created_at /
make_latest) versus published_at ordering divergence and why it is an accepted,
mitigated tradeoff.

* Studio: drop the llama.cpp prebuilt-resolution doc

Remove studio/docs/llama-cpp-prebuilt-resolution.md and the docstring pointer to
it; the resolution rationale (the created_at/make_latest vs published_at ordering
nuance) stays inline in _download_host_latest_release_tag.

* Studio: tighten llama.cpp download-host fast-path comments

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
2026-07-14 03:30:17 -07:00
Long Yixing
a337c72753
Fix Studio auto-titles for reasoning models (#7098) 2026-07-13 15:13:50 -03:00
Daniel Han
c570180a32
Tighten Studio instruction-file cleanup boundaries (#7097)
* Handle linked instruction files in Bash cleanup

* Limit instruction cleanup to managed dependencies

* Make Bash cleanup test portable

* Run junction cleanup regression on Windows

* Keep instruction cleanup CI focused
2026-07-13 01:46:23 -07:00
Daniel Han
9e77c1e663
Studio: remove AGENTS.md and CLAUDE.md from install artifacts (#7096)
* Studio: remove AGENTS.md from install artifacts

* Studio: prune CLAUDE.md from install artifacts

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Fix Studio instruction cleanup edge cases

* Trim Studio cleanup comments

* Make Studio cleanup safe on PowerShell 5.1

* Fix Studio cleanup ownership boundaries

* Simplify Windows link detection

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
2026-07-13 00:15:04 -07:00
Apoze
fef37cb25b
Studio: queue local GGUF OpenAI-compatible requests before llama-server (#7047)
---------

Co-authored-by: oobabooga <112222186+oobabooga@users.noreply.github.com>
2026-07-10 17:05:48 -03:00
Daniel Han
fb5dc91bb4
Studio: remove dead direct_linux_release_plan path (#7030)
parse_direct_linux_release_bundle and direct_linux_release_plan are no
longer reached by any live code path. Fork Linux installs resolve through
_fork_manifest_release_plans -> _linux_published_attempts, and the upstream
(ggml-org) path uses direct_upstream_release_plan. The dead parser also
called _resolve_linux_bundle_profile, which no longer exists, so its CUDA
branch would raise NameError if ever executed.

Drop both functions and the obsolete TestDirectLinuxNvidiaCpuGate; its live
equivalent TestLinuxPublishedAttemptsNvidiaCpuGate already covers the
NVIDIA no-silent-CPU behaviour.
2026-07-09 05:09:16 -07:00
Daniel Han
8205d4c081
Retry the Studio UI shutdown re-login on transient goto timeout (#7027)
* Retry the Studio UI shutdown re-login on transient goto timeout

The Chat UI Playwright smoke intermittently failed at the pre-shutdown
re-login: page.goto('/login') can hit a 60s TimeoutError on a slow runner
even while the server is healthy, and the surrounding except only tolerated
ERR_ABORTED / interrupted-navigation, so a plain timeout hard-failed the job.

Wrap the re-login goto/wait/fill/submit in the same 3-attempt retry the
change-password step already uses (recover_or_replace_page between tries,
per-attempt fail screenshots, wait_for_health pre-gate). The composer wait
stays outside the loop so a retry never re-navigates after login has set
tokens (which would redirect to /chat via the guest guard); it remains the
authoritative confirmation, so a genuinely broken login still fails.

* Catch transient login-request failures and preserve error listeners on recovery

Wait on the /api/auth/login POST inside the retry (via click_and_wait_for_response)
so a transient 4xx/5xx is retried in-loop instead of surfacing only at the
out-of-loop composer wait, matching the change-password step. When
recover_or_replace_page swaps in a fresh page, re-attach the pageerror/console
listeners so error tracking survives the replacement.
2026-07-09 01:46:14 -07:00
Michael Han
1b825213ea
Stabilize floating monitor drag (#6984)
* Stabilize floating monitor drag

* Restore floating monitor exit animation

* Harden Windows Studio smoke checks

* Keep API menu badge removed

* Apply no-build-tools env overrides in-script

The runner does not apply step-level env keys containing parentheses,
so ProgramFiles(x86) kept its real value and Find-VsBuildTools still
detected VS through vswhere. Set the overrides inside each pwsh step
instead; child processes inherit them. The resolver step moves to pwsh
because bash cannot export a variable named ProgramFiles(x86).

* Reset chat UI session without a second browser context

macOS runs Chromium with --single-process, where closing the last
context tears down the whole browser, so the shutdown re-login died
with TargetClosedError on new_page. Clear cookies and swap pages
inside the same context instead, opening the replacement page before
closing the old one.

* Keep the no-build-tools Path filtered across session refreshes

install.ps1's Refresh-SessionPath and setup.ps1's Refresh-Environment
rebuild the session Path from the Machine and User registry scopes, so
the process-level filter could be undone mid-install and re-expose
CMake. Filter those scopes in the Prepare step with normalized dir
matching and restore them in cleanup.

* Drop stale localStorage auth tokens before re-login

Auth tokens live in localStorage, not cookies, and the login guest
guard redirects on their mere presence. Remove them during the session
reset so the /login navigation is deterministic instead of relying on
the tolerated redirect bounce.
2026-07-09 00:16:05 -07:00
oobabooga
fcb1152c76
Studio: source CPU llama.cpp prebuilts from unslothai/llama.cpp (#6311)
* Studio: source CPU llama.cpp prebuilts from the unslothai fork

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Studio: reject unknown Linux CPU arches and keep ROCm-tooling hosts off the CPU prebuilt

* Studio: extend the resolve-prebuilt ROCm-tooling guard to Windows

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Studio: let ROCm-SDK-only CPU hosts take the fork CPU prebuilt

* Studio: accept windows-arm64 prebuilt kind and refresh stale fork-routing comments

* Studio: correct stale fork-routing comments and --resolve-prebuilt help

* Refresh stale ggml-org routing comments

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Daniel Han <danielhanchen@gmail.com>
2026-07-08 05:34:59 -07:00
ErenAta16
e86b7874d4
feat: detect installed coding agent CLIs in Studio settings (#6909)
* feat: detect installed coding agent CLIs in Studio settings

The API-keys panel only ever showed the "claude" flavor of the
`unsloth start` command, so anyone using Codex, OpenCode, OpenClaw,
Hermes, or Pi had to manually rewrite the copied command by hand.

Add a backend check that looks for each agent's CLI binary on PATH
(shutil.which, mirroring the pattern already used elsewhere in
studio/backend/utils) and expose it as GET /api/settings/coding-agents.
The API-keys panel now renders a picker for all six supported agents,
marks the ones it finds installed, and defaults to one of those instead
of always falling back to claude.

Includes unit tests for the detection helper.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* address review feedback on coding-agent detection

Three fixes from PR review:

- detect_installed_coding_agents now treats a PATH lookup failure as
  "not installed" instead of letting it bubble up and break the
  settings endpoint; added a regression test for it.
- CodingAgentsResponse.agents is now typed as an immutable tuple
  instead of a list built from one, matching CODING_AGENTS itself.
- Fixed a race in the API-keys panel: picking an agent while the
  installed-CLI check is still in flight could get silently overwritten
  once that check resolved. A ref now tracks whether the user has made
  a manual choice, so the auto-detected default only applies before
  that happens.

* Address Codex feedback: GGUF gating and remote-detection scope

- codex refuses to launch against a non-GGUF (transformers-backed) model
  (unsloth_cli's _require_gguf_for_codex), so auto-defaulting to it produced
  a copy-pasteable command that fails immediately whenever the loaded model
  isn't GGUF. Add useActiveModelIsGguf() (looks up the active checkpoint in
  the chat runtime store) and a correction effect that steers the auto-pick
  away from codex unless the loaded model qualifies, without ever touching a
  choice the user made by hand.
- Detection runs via shutil.which on the Studio backend host, which isn't
  the same machine as the browser in a tunnel/remote session. Reword the
  'installed'/'detected' copy to say so explicitly when the tunnel URL is
  in use, instead of implying the check ran on the viewer's own device.

* Rework auto-default per review: loopback gating + inline GGUF check

Replaces the previous approach with the exact shape discussed on the PR:

- Export isLoopbackHost/normalizeHost from agent-command.ts. The detection
  endpoint runs shutil.which on the Studio backend, which only describes the
  browser's own machine when the base this panel targets resolves to
  loopback. For a LAN or tunnel/remote base, gate the whole thing off --
  don't mark anything as "detected" and don't let it drive the default --
  instead of just relabeling the copy.
- Drop the separate GGUF-correction effect and useActiveModelIsGguf hook.
  Read useChatRuntimeStore.getState().activeGgufVariant inline inside the
  existing detection effect's .then() (so it doesn't need to sit in the
  effect's deps), and pick the first detected agent that isn't codex unless
  the loaded model is GGUF, leaving the existing default untouched when no
  compatible agent is detected.

Verified both branches (loopback vs LAN/tunnel base, gguf vs non-gguf,
manual pick preserved, no-compatible-agent fallback) with a standalone
port of the .then() logic.

* Address latest Codex findings: stale detection, model swap, cache

- Clear detectedAgents (and skip the network call entirely) when the panel
  leaves a loopback base, instead of leaving a previous loopback detection
  result marked 'installed' for a command that now targets a LAN/tunnel/
  remote host.
- Add a separate, network-free correction effect keyed on the live
  activeGgufVariant: if codex was auto-picked while a GGUF model was loaded
  and the user then switches to a transformers-backed model while this panel
  stays mounted, steer away from codex instead of leaving a command that
  unsloth_cli's _require_gguf_for_codex will now reject. Never touches a
  manual pick.
- Drop coding-agents.ts's module-lifetime cache. Installed-CLI detection is
  environment state, not a persisted setting, so a stale positive/negative
  from before the user installed something (or reopened the tab) is worse
  than one extra cheap local API call per mount; keep only the in-flight
  de-dupe for concurrent callers.

Verified the correction-effect logic (gguf->non-gguf swap with/without a
fallback, still-gguf no-op, manual pick never overridden) with a standalone
port of the effect.

* Make the codex/GGUF auto-pick symmetric in both directions

The correction effect only steered away from codex when the model stopped
being GGUF; it never steered back toward codex if the model became GGUF
*after* a non-GGUF-gated fallback had already picked something else (e.g.
codex is the only detected CLI, a transformers model is loaded so the
selection correctly falls back to the claude default, then the user loads a
GGUF model while the panel stays mounted -- codex never gets reconsidered).

Consolidate into one effect that re-derives the preferred detected agent
from scratch whenever detectedAgents or activeGgufVariant changes, in either
direction, instead of only reacting to the codex-specific downgrade case.
The fetch effect now only populates detectedAgents/availableAgents; this
effect is the single source of truth for what gets auto-picked from that
list. Never overrides a manual choice.

Verified both transition directions plus the manual-pick-survives and
initial-detection cases with a standalone port of the derivation logic.

* Reset the auto-pick to the default when it stops being trustworthy

Two more real gaps from the latest Codex pass on d988f52:

- The unified derivation effect only handled the case where a *different*
  detected agent could take over. If codex was the only detected agent and
  auto-picked while a GGUF model was loaded, then the model stopped being
  GGUF, 'preferred' came back undefined and the effect silently left the
  selection on codex -- exactly the command unsloth_cli's
  _require_gguf_for_codex now rejects. Fall back to DEFAULT_AGENT in that
  case instead of leaving it untouched.
- Leaving a loopback base cleared detectedAgents (so the 'installed' badges
  correctly disappear) but left whatever agent had been auto-picked from
  that now-stale, server-side-only detection still selected. Reset to
  DEFAULT_AGENT there too, unless the user picked by hand.

Introduces a shared DEFAULT_AGENT constant instead of repeating the "claude"
literal at each reset site. Verified all five cases (both new resets, both
manual-pick-survives variants, and the existing multi-detected-agent
fallback still preferring another compatible agent over resetting) with a
standalone port of the effects.

* Derive GGUF-ness from the actual loaded state, not just the variant string

activeGgufVariant only covers an HF-repo GGUF pick (a specific quant
variant string). A direct local .gguf file -- custom folder, LM
Studio, or drag-drop -- is just as much a GGUF the codex preflight
(unsloth_cli's _require_gguf_for_codex) would accept, but it never has
a "variant" to report, so it read as non-GGUF here even though
/api/inference/status correctly reports is_gguf: true for it. That
mismatch could leave a Codex-only install not auto-selected, or reset
an auto-picked Codex, for a model that actually supports it.

Combined activeGgufVariant with activeNativePathToken (covers the
drag-drop/picked-file case) and ggufContextLength (only ever populated
when the backend last reported is_gguf: true for the active model, see
applyActiveModelStatusToStore) so all three paths a model can be GGUF
through are covered, matching the same is_gguf-or-equivalent check
hasGgufSource already applies to a staged pick elsewhere in this
codebase.

* Clear stale native-path token on a non-GGUF status refresh

When a native (drag-dropped or picked) GGUF was loaded and the backend later
switches to a transformers model outside the UI load path, refresh() adopts the
new /api/inference/status via setCheckpoint and applyActiveModelStatusToStore.
Those reset activeGgufVariant and ggufContextLength but never clear
activeNativePathToken, so the isGguf OR stays true after the switch and a
Codex-only detection auto-selects unsloth start codex for a non-GGUF model its
preflight rejects.

Drop activeNativePathToken in applyActiveModelStatusToStore whenever the status
is non-GGUF. A real GGUF load reports is_gguf: true, so its token is preserved
(the load path owns it); only a non-GGUF status clears it.

* Add the AGPL-3.0 header to the new studio contract test

* Fix/adjust agent detection for PR #6909

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: danielhanchen <danielhanchen@gmail.com>
Co-authored-by: wasimysaid <112766706+wasimysaid@users.noreply.github.com>
2026-07-08 05:26:50 -07:00
Michael Han
7f9964f21e
Move New badge to System settings tab (#6963)
* Move New badge to System settings tab

Show the "New" badge on the System tab and drop it from Connections.

* Stabilize refresh revocation UI test

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

---------

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2026-07-08 01:51:34 -07:00
Etherll
ba450b437e
Studio: add assistant response details panel (#6842)
* Studio: add assistant response details panel

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Hide model badge by default, show on hover/focus

Wrap MessageResponseModelBadge in a span with hidden/group-hover visibility classes to reduce visual clutter. The badge now only displays when hovering or focusing on the assistant message, improving the UI presentation. Updated corresponding tests to verify the new CSS classes.

---------

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2026-07-07 06:26:00 -07:00
Daniel Han
d79495dc96
Add RDNA 2/3/4 ROCm routing tests via a CPU-only torch spoof (#6935)
* Add RDNA 2/3/4 ROCm routing tests via a CPU-only torch spoof

Introduces tests/_zoo_rocm_spoof.py, the ROCm sibling of _zoo_aggressive_cuda_spoof.py: it reuses the CUDA spoof's torch.cuda no-op machinery and overlays an AMD Radeon identity (torch.version.hip, gcnArchName, capability) for any RDNA 2/3/4 gfx target, so hip code paths run on CPU-only CI with no AMD hardware.

tests/studio/install/test_rocm_rdna_routing.py then asserts unsloth_zoo routes every RDNA arch (gfx1030/1031/1032/1034, gfx1100/1101/1102, gfx1150/1151, gfx1200/1201) correctly: device_type resolves to hip, llama.cpp target resolves to (rocm, gfx), and the per-family ROCm bundle suffix (gfx103X/gfx110X/gfx120X, or self for gfx1150/1151) is picked. The torch-facing checks run in a subprocess so the spoof never leaks into sibling tests and DEVICE_TYPE (cached at import) resolves from a clean process; the pure gfx-family mapping runs in-process. Guarded by importorskip so it runs where torch and unsloth_zoo are installed (the Repo tests CPU job) and skips elsewhere.

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2026-07-07 04:41:37 -07:00
Leo Borcherding
296cacb5a1
ROCm-on-WSL: support discrete Radeon (RDNA 3/4) in WSL, not just Strix Halo (#6915)
* WSL ROCm: generalize ROCm-on-WSL bootstrap from Strix-only to any RDNA arch

install_rocm_wsl_strixhalo.sh hardcoded gfx1151, so its verify step died on
discrete Radeon cards even though the ROCm + librocdxg setup is arch-agnostic.
Auto-detect the GPU arch from rocminfo (override via UNSLOTH_WSL_GFX), verify any
GPU agent enumerates over DXG, and map the arch to AMD's per-arch wheel family for
the optional smoke test (injecting librocdxg into torch/lib so torch's bundled
ROCr finds the DXG bridge). Verified on gfx1200 (Radeon RX 9060 XT) in WSL2 +
Ubuntu 24.04 -- torch.cuda now enumerates the GPU.

* WSL ROCm: trigger the ROCm-on-WSL bootstrap for discrete Radeon GPUs too

_maybe_bootstrap_rocm_wsl only fired for Strix APUs (matched via /proc/cpuinfo,
which discrete cards don't appear in). Add _wsl_amd_gpu_name() -- queries the
Windows host via WMI -- and broaden the trigger gate plus the 'already-usable
ROCm' rocminfo check from gfx1151-only to any real GPU agent (gfxNNNN, excluding
the gfx11-generic fallback ISA). The generalized bootstrap then auto-detects the
arch. Enables 'curl install.sh | sh' to set up ROCm-on-WSL on discrete Radeon RX
7000/9000 in WSL2 + Ubuntu 24.04, not just Strix Halo/Point.

* WSL ROCm: address review -- filter generic ISA in bootstrap, bound the host GPU query

- install_rocm_wsl_strixhalo.sh: exclude the gfx11-generic fallback ISA in arch
  detection (grep -v generic), matching install.sh's rocminfo check, so a generic
  agent listed before the real one can't be picked as the arch.
- install.sh: wrap the powershell.exe Win32_VideoController query in _run_bounded
  (10s timeout) so an unstable WSL-interop / busy host can't hang the installer.

* WSL ROCm: harden arch-detect + librocdxg copy under set -eo pipefail (review)

- _detected_gfx: append '|| true' so a no-GPU rocminfo (empty pipeline, non-zero
  under pipefail) doesn't abort the assignment before the '[ -z ]' branch prints
  the diagnostic + die message.
- smoke-test librocdxg copy: gate on '[ -d "$_tlib" ]' instead of '[ -n ]' so a
  non-directory value can't make cp rename librocdxg to 'lib'.

* WSL ROCm: address Codex review (gfx000, 24.04 reroute for discrete, test locator)

- Exclude gfx000 (the CPU agent) from the WSL 'usable ROCm' check and the bootstrap
  arch-detect: match gfx[1-9] (nonzero arch), so a partial ROCm install that only
  reports the CPU ISA no longer short-circuits the librocdxg setup. (P2)
- Reuse the Ubuntu-24.04 reroute for discrete Radeon: broaden
  _maybe_reroute_strixhalo_to_2404's gate with the same _wsl_amd_gpu_name (WMI)
  fallback, so a discrete card on 26.04 reroutes to a 24.04 distro like Strix does
  instead of falling to CPU. Moved _wsl_amd_gpu_name above the reroute and made it
  self-contained + 10s-bounded (it runs before _run_bounded is defined). (P2)
- Update TestInstallShDropinPersistence to locate the gate by its unique
  '!/generic/' clause now that the gfx1151 literal is gone. (P1)

* Condense ROCm-on-WSL comments in install.sh and bootstrap helper

* Guard WSL reroute from NVIDIA hybrid hosts and fix GFX-override pipefail check

* Honor CUDA_VISIBLE_DEVICES-hidden NVIDIA in the WSL reroute guard

* Reuse _has_usable_nvidia_gpu in the WSL reroute guard

---------

Co-authored-by: Daniel Han <danielhanchen@gmail.com>
2026-07-07 02:29:37 -07:00
Ayushman
c356427f30
Guard Windows ROCm torchao override skip (#6837)
* Fix: skip fp16/bf16 validation for full finetuning in RL trainers

When doing full finetuning (FFT) of a bfloat16 model, the fp16/bf16
mismatch validation fires before the corrective logic runs, causing a
misleading error even though the code would properly handle it downstream.
Skip the validation when full_finetuning is active.

Fixes #6731

* Fix: auto-correct fp16/bf16 mismatches for full finetuning before validation

Instead of entirely skipping validation (which could let mismatches
through when mixed_precision_dtype is float32), auto-correct explicit
fp16/bf16 settings that conflict with the model's dtype for FFT. This
way the existing validation still catches real mismatches for non-FFT
cases, and the corrective logic below handles the normalized settings.

Fixes the issue raised in Codex review of PR #6813.

* Guard Windows ROCm torchao override skip

Detect installed ROCm torch directly before applying the torchao override so Windows ROCm environments never install the crashing torchao package even if the earlier ROCm-installed flag is missing.

* Update unsloth/models/rl.py

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

* Update studio/install_python_stack.py

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

* Harden ROCm probe and sync RL precision flags

Tolerate stray stdout noise when probing Windows ROCm torch installs by checking the last non-empty output line, matching the existing torch version probe behavior. Also keep args.fp16 and args.bf16 synchronized with the full-finetuning precision auto-corrections in the RL trainer patch so downstream eval settings see a consistent TrainingArguments state.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* Add MLX trainer compatibility shims

Patch imported MLXTrainer and MLXTrainingConfig objects to preserve the expected dataclass field ordering and to provide a _train_dataset_for_batches fallback when older trainers or test doubles only expose train_dataset. Also add focused worker tests covering both compatibility paths.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* Scope PR to Windows ROCm torchao guard

* Restore PR scope to Windows ROCm guard

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* test: cover Windows ROCm torchao skip behavior

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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---------

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Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
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Co-authored-by: Lee Jackson <130007945+Imagineer99@users.noreply.github.com>
Co-authored-by: imagineer99 <samleejackson0@gmail.com>
2026-07-03 19:24:29 +01:00
Daniel Han
026141a4a4
Studio: multi-select export formats, portable FP8/INT8, GGUF LoRA, and source parity (#6767)
* Studio: expose full compressed-tensors scheme set in an export formats dropdown

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Studio: multi-select export formats, portable torchao FP8/INT8, GGUF LoRA, source parity

Export page overhaul on top of the formats dropdown:

- Unify merged precision into one sorted multi-select list (16-bit first, then
  8-bit, then 4-bit). Drop "vLLM" from labels, add INT8 (W8A8), INT8 (W8A16),
  INT4 (W4A16), MXFP4, MXFP8. Quick formats render as toggle pills; the rest live
  in a multi-select "More formats" dropdown, so several formats export in one run.
- Add a portable torchao FP8/INT8 save path (Float8WeightOnlyConfig /
  Int8WeightOnlyConfig) that needs no NVIDIA GPU to produce and loads in vLLM.
  FP8 serializes to safetensors, INT8 to .bin. Wired into save_pretrained_merged
  and push_to_hub_merged via a TORCHAO_EXPORT_SCHEMES registry and
  _unsloth_save_torchao, parallel to the compressed-tensors path.
- Hide NVIDIA-only compressed-tensors formats when no NVIDIA GPU is present; keep
  16-bit and portable FP8/INT8. The backend also rejects a compressed request on
  non-NVIDIA hardware so it stays authoritative.
- Relax merged export to non-PEFT models so Local Model and Hugging Face sources
  get the same 16-bit / compressed / portable options.
- GGUF: send the whole quant list in one call (merge once, quantize many).
- LoRA: add a GGUF adapter option (convert_lora_to_gguf.py) with an outtype
  select (f16/bf16/f32/q8_0/auto), alongside the safetensors adapter.
- Thread the new fields through models, routes, orchestrator, and worker; extend
  the export tests.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* Studio: gate export by accelerator with a torch-aware reason; fix export save dir naming

Export runs through Unsloth, which requires a compute accelerator (NVIDIA/AMD/Intel
GPU or Apple MLX) and has no CPU code path, so a bare-CPU host cannot export even
with PyTorch installed. Add export_capability() in utils/hardware that reports
export_supported plus a precise reason so the UI stops showing a generic "no GPU":

  - pytorch_not_installed: a --no-torch install (even a physical GPU is unusable)
  - no_accelerator: PyTorch present but no supported accelerator (bare CPU)
  - mlx_unavailable: Apple Silicon where the MLX stack is missing or too old

Expose the fields on /api/system/hardware and /api/system, and guard the mutating
export routes (load-checkpoint, export/merged|base|gguf|lora) with HTTP 400 and the
reason, leaving read-only endpoints usable so the Export page still renders.

Make core/export/export.py import without PyTorch and without a usable accelerator
(the Unsloth import is caught) so the export worker degrades to a clear message
instead of crashing at import.

Frontend: keep /export reachable on chat-only hosts and gray out the method and
format options with the backend reason (Alert plus disabled MethodPicker) instead
of silently redirecting to /chat, so users see why export is unavailable.

Also fix the export save directory producing "model/null" for Local Model and
Hugging Face sources that have no run/checkpoint, naming the folder from the model id.

* CI: validate Studio export capability gating on Linux, Windows and macOS

Add a small pytest matrix that runs studio/backend/tests/test_export_capability.py
on ubuntu-latest, windows-latest and macos-latest. It confirms, on each real OS,
that hardware.export_capability() reports the right decision and reason
(pytorch_not_installed, no_accelerator, or mlx_unavailable) and that the export
backend imports without PyTorch and degrades to a clear message instead of crashing.

Hosted runners have no GPU/MLX, so this covers the "export unavailable, here is why"
path a Mac/Windows user without an accelerator sees; a real accelerator export is
validated separately. The job installs only a CPU PyTorch plus the backend import
deps (no unsloth, triton, or llama.cpp), so it runs in seconds with no GPU.

* Studio export: address Codex review (source-aware gating, GGUF LoRA token/MLX/guard)

Frontend (export-page):
- Gate LoRA and quantized-model restrictions on the active source. isAdapter /
  isQuantized come from the selected checkpoint; in Local Model / Hugging Face
  ("model") source mode they were stale, so LoRA stayed wrongly enabled for a
  direct base model (backend then rejects "No adapter to export") and a stale
  "quantized" flag disabled every method for an unrelated, exportable model. Add
  effectiveIsAdapter / effectiveIsQuantized (false outside checkpoint mode) and use
  them in the method-reset effect and the MethodPicker disabled state.
- Hide the GGUF LoRA option on a macOS/MLX host (the backend rejects GGUF LoRA on
  MLX), so users no longer pick it, wait through the load, and always fail. Disable
  the "GGUF adapter" button on a Mac host and never send loraGguf there.

Backend (core/export/export.py):
- Pass the HF token into the GGUF LoRA conversion (save_pretrained_gguf), so a
  gated/private base model's config fetch in convert_lora_to_gguf.py is
  authenticated; without it the load can succeed but the conversion fails.
- Guard the save_pretrained_gguf capability check with getattr so an older Unsloth
  model that lacks the method returns the clean "not supported" message instead of
  an AttributeError that surfaces as a generic 500.

* Studio export: address 2nd Codex review (CI index, empty merged, test import)

- studio-export-capability-ci.yml: add --extra-index-url https://pypi.org/simple to
  the torch install so torch's transitive deps still resolve; --index-url alone
  replaces PyPI with only the CPU wheel index, which does not serve all of them.
- export-page handleStart: reject an empty merged selection (mirrors canExport), so
  clicking the panel's Start button with every precision pill deselected no longer
  submits mergedSelections: [] and launches an unintended default 16-bit export.
- test_export_imatrix_compressed: the torchao-registry test now reads unsloth/save.py
  as text (like the other ast/string checks) instead of `import unsloth.save`, which
  raised ModuleNotFoundError in the CPU studio-backend suite that has no unsloth
  installed.

* Studio export: make comments succinct across the export changes

* Studio export: use load token for local GGUF LoRA export of gated bases

* Studio export: harden portable torchao path and gate multi-format Hub push

torchao (_unsloth_save_torchao):
- merge to an isolated temp staging dir so a co-selected 16-bit output at save_directory is not deleted
- narrow VLM detection to vision_config / ForVisionText2Text so T5/BART/Whisper are not misrouted
- forward trust_remote_code (from auto_map) to the reload so custom-code models export

Export UI:
- hide portable torchao formats on macOS/MLX (backend rejects quantized export there)
- restrict a Hub merged export to a single format (each writes to the repo root)

* Studio export: torchao tokenizer remote-code + XPU offload, scale GGUF timeout

torchao (_unsloth_save_torchao):
- honor auto_map in the staged tokenizer/processor configs (not just model.config) when
  deriving trust_remote_code, so custom-code tokenizers reload after the merge
- offload single-device XPU models to CPU (and empty the XPU cache) before the reload, matching
  the CUDA path, so an Intel GPU that fits the model once does not OOM on the second copy

Export orchestrator:
- scale the GGUF wait timeout by the number of requested quants so a multi-quant list export of a
  large model does not time out at a flat 3600s

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* Studio export: show portable torchao formats only on non-NVIDIA (CPU) hosts

Portable torchao FP8/INT8 is the fallback for hosts without the NVIDIA compressed-tensors path.
On an NVIDIA GPU the compressed-tensors FP8/FP4/INT formats are the intended path (llm-compressor
auto-installs), so hide the portable duplicates there; keep them on CPU / non-NVIDIA hosts and
continue hiding them on macOS/MLX.

* Studio export: report all output folders and the exported formats

- Multi-format merged export now collects every sibling output directory (one per selected
  precision) instead of only the last; the success banner lists them all.
- Show the selected precision formats in the run summary (a Formats row, like GGUF Quantizations),
  so the panel says what is being exported rather than just 'Merged Model'.
- Persist the selected formats in the run summary and seed them on mount, so navigating away and
  back (or toggling the export method) restores the selection instead of resetting to 16-bit.

* Studio export: list all output formats, add GGUF LoRA target, default Q8_0, auto-select newest checkpoint

- Progress/summary panel now shows a Formats row with the selected merged
  formats, and the success banner lists every output folder a multi-format
  merged run creates (one line per format) instead of only the last one.
- Merged format selection is seeded from the active run, so navigating away
  and back (or switching method cards) no longer resets it to 16-bit.
- GGUF / Llama.cpp now offers an Export target toggle (Full model or LoRA
  adapter) for adapter checkpoints, reusing the LoRA GGUF export path.
- Removed the Auto GGUF LoRA output type and defaulted to Q8_0 in the UI,
  the request model, and the backend defaults; the outtype list is now
  Q8_0/F16/BF16/F32. Core save.py still accepts auto for external callers.
- When a finetune has no checkpoint selected, auto-select the newest one.

* Studio torchao export: robust reload class + optional VLM import

Two fixes to the portable torchao FP8/INT8 export reload, from review of the
narrowed VLM detection:

- Encoder-decoder seq2seq checkpoints (T5/BART/Whisper) are not causal LMs.
  With the narrowed is_vlm test they now correctly skip the image-text class,
  but fell through to AutoModelForCausalLM and failed to reload after the merge.
  Reload them with their own architecture class from the config instead.
- AutoModelForImageTextToText was imported unconditionally at the top of the
  torchao path, so on Transformers builds without that class the import aborted
  every torchao export (even text-only). Import it lazily only for a VLM, with
  the AutoModelForVision2Seq fallback used elsewhere in Unsloth.

* Studio: enable FP8/FP4 compressed export for newer-transformers models

The shipped llm-compressor 0.10.x pins transformers<=4.57.6, so FP8/FP4 export failed
for models needing a transformers 5.x sidecar (Qwen3.5, Gemma-4, Qwen3-Next): the
quantization subprocess crashed importing the removed TORCH_INIT_FUNCTIONS.

Run the quantization against a dedicated llm-compressor-main "shadow": a --target
package dir (transformers 5.10.2 + llm-compressor main + compressed-tensors) layered
over the existing torch. It installs --no-deps so torch is never touched (works on any
Studio torch build), is provisioned lazily and fingerprint-cached, and can be turned
off with UNSLOTH_DISABLE_LLMCOMPRESSOR_MAIN.

- transformers_version.py: provision + validate .venv_llmcompressor.
- export.py: route all compressed exports through the shadow when available; else keep
  the workspace 0.10.x path and fail fast past its transformers ceiling.
- save.py: launch _compressed_quantize.py with a clean PYTHONPATH = shadow.
- _compressed_quantize.py: skip linear_attn / vision tower / MTP modules (matches the
  RedHatAI and NVIDIA reference quants, and is required by the grouped schemes).

Verified all four schemes (fp8, w8a8, w4a16, mxfp4) on Qwen3.5-9B and Llama-3.2-1B, and
fp8 on Gemma-4, end to end through Studio.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Fix GGUF LoRA export tests

* Fix export CI expectations

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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---------

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Co-authored-by: wasimysaid <112766706+wasimysaid@users.noreply.github.com>
Co-authored-by: Wasim Yousef Said <wasimysdev@gmail.com>
2026-07-03 08:25:10 -07:00
Long Yixing
d918245834
Add MLX-aware public Unsloth trainer API (#6462)
* feat: add mlx public trainer api

* test: cover mlx public trainer api

* fix: preserve mlx epoch trainer configs

* fix: pass mlx warmup ratio through config

* fix: align mlx trainer dataset order

* fix: keep mlx chat templates import-light

* fix: infer mlx trainer context length

* fix: mirror cuda mlx context defaults

* fix: align mlx notebook trainer defaults

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* fix: keep mlx public helpers import-light

* refactor: reuse mlx optimizer normalization

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* fix: address mlx review feedback

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* fix: tighten mlx training argument parity

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* fix: align mlx trainer eos default

* Fix MLX trainer to accept DataCollatorForSeq2Seq and handle TokenizerWrapper in get_chat_template

* Trim redundant docstrings on internal MLX helpers

* MLX review fixes: Studio optimizer import-safe on non-MLX hosts, preserve explicit max_length, skip MLX tests before import

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* MLX review round 2: defer max_length to model context, optimizer alias fallback for older zoo, skip non-MLX test on missing GPU deps

* MLX review round 3: keep chat_templates importable without torch on MLX

* fix: preserve MLX trainer notebook shims

* fix: ignore CUDA tokenizer moves on MLX

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* fix: harden MLX trainer shims

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* fix: unwrap MLX scheduler enum args

* fix: coerce integral MLX epoch counts

* fix: spoof CUDA compatibility APIs on MLX

* fix: harden MLX notebook compatibility shims

* MLX: add torch.cuda.mem_get_info to the compatibility shim

Notebook memory cells call torch.cuda.mem_get_info()[0] directly (not gated by
is_available), so on MLX it raises without a shim. Return (free, total) bytes
from the MLX device stats, consistent with the other torch.cuda compat helpers,
and add a matching assertion to the compat-API test.

* MLX: use active memory for mem_get_info; fix BatchEncoding.to keyword device

Address review on the MLX compatibility shim:
- torch.cuda.mem_get_info() now derives free bytes from current active MLX
  memory instead of the peak high-water mark, so a capacity check stays
  accurate after a transient spike or a prior run.
- BatchEncoding.to(device=...) passed by keyword no longer forwards a positional
  None alongside the keyword (which raised "multiple values for 'device'"), so
  non-CUDA keyword moves like .to(device="cpu") delegate correctly.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* MLX: accept preserve_dataset_order; stub RL trainers with a clear error

Two fixes so unmigrated notebooks behave predictably on MLX (torch present):

- preserve_dataset_order is a real MLXTrainingConfig field but was missing from
  the extra-argument allowlist, so passing it (as a config or trainer kwarg)
  could be rejected as unknown on a zoo without the field. Add it to
  _MLX_IMPLEMENTED_EXTRA_ARGUMENTS so the documented no-shuffle path is reachable.

- GRPO/DPO/ORPO (and KTO/PPO/Reward) have no MLX trainer yet. Retarget the ones
  the installed trl exposes to a stub that raises a clear 'not supported on MLX'
  error instead of importing the real torch/CUDA trainer and crashing deep
  inside it. Only existing trainers are retargeted (no invented attributes),
  idempotent across re-imports.

* MLX: make RL-trainer stubbing import-safe; back current-memory APIs with active memory

Address review on the MLX shims:
- The RL-trainer stub loop probed trl with getattr(_trl, name), which triggers
  trl's lazy trainer import and pulls torch -- that can crash import unsloth on a
  torch-free MLX install just to check existence. Decide what to stub from
  trl.__all__ + already-materialized attrs (vars) instead; never resolve the real
  trainer. All trl trainer names are in __all__, so they are still stubbed (even
  torch-free), and the probe no longer imports torch.
- torch.cuda.memory_reserved / memory_allocated (the current, non-max APIs) were
  aliased to peak max_memory_reserved. Back them with current active MLX memory so
  cleanup / capacity checks see live usage; max_* keep the peak high-water mark.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* MLX: keep TRL's SFTConfig epoch default under the trl.SFTConfig alias

Unmigrated notebooks import SFTConfig from trl, which the MLX build aliases to
the public training-args class. TRL/HF SFTConfig defaults to num_train_epochs=3
(max_steps=-1); the native MLX config defaults to max_steps=60. So an SFTConfig
built without an explicit length silently ran 60 MLX steps instead of TRL's 3
epochs under the alias. Alias trl.SFTConfig to a thin subclass that seeds the
TRL epoch default only when neither max_steps nor num_train_epochs is given;
explicit lengths pass through untouched, and the native public args class keeps
its MLX default. Epoch mode is supported by the MLX trainer.

* MLX CI: keep the GGUF reload smoke under the job timeout

The RELOAD-GGUF-via-llama-cli step timed out at 300s. BF16 GGUF decode is
CPU-bound on the macOS runner (~10s+/token), so generating 24 tokens landed
right on the 300s cliff and killed the process. This step is a save/reload
integrity smoke (it only needs a few chars of output), so the token count is
incidental: generate 8 tokens with explicit threads and a small headroom on the
subprocess timeout, all env-tunable (UNSLOTH_GGUF_RELOAD_N / _THREADS /
_TIMEOUT). Cuts the reload well under the 25 minute job budget.

* MLX: broaden trainer stubs, real peak-memory reset, fix shim tests

Address review on the MLX public API:
- The SFTConfig identity tests asserted trl.SFTConfig is UnslothTrainingArguments,
  but the alias now points at the _MLXSFTConfig subclass that preserves TRL's
  epoch default, so the MLX suite failed before testing the shim. Assert
  issubclass instead.
- torch.cuda.reset_peak_memory_stats was a no-op, so max_memory_reserved kept
  earlier model-load peaks across a scoped run. Wire it to mx.reset_peak_memory
  with the same core/metal fallback used for the reads.
- The unsupported-trainer stubs were a fixed list, so trainers outside it (a
  newer RLOOTrainer) still routed to the real torch trainer. Derive the set from
  trl.__all__ (every non-SFT *Trainer) so all non-SFT surfaces fail with a clear
  MLX message; names come from __all__ so trl is never resolved.
- The non-MLX export smoke skipped only on missing bitsandbytes/triton; other
  absent GPU deps (numpy/torch/unsloth-zoo, or _gpu_init re-raising ImportError)
  made it fail on CPU hosts. Skip on any ImportError.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* fix: keep MLX notebook compatibility minimal

* MLX CI: force CPU + small context for the GGUF reload smoke

The RELOAD-GGUF-via-llama-cli step timed out even at 8 tokens (>420s), so it is a
fixed hang, not per-token cost: on the paravirtual macOS runner GPU llama.cpp's
Metal backend stalls, and the gemma3 GGUF advertises a 32768 context that llama-cli
would otherwise fully allocate. Run llama-cli CPU-only (-ngl 0) with a small context
(-c 256); keep generation short. All env-tunable (UNSLOTH_GGUF_RELOAD_NGL / _CTX /
_N / _THREADS / _TIMEOUT). Also print llama.cpp's partial stdout/stderr on timeout so
a future hang is diagnosable instead of an opaque TimeoutExpired.

* MLX CI: export the reload-smoke GGUF as q8_0, not bf16

The GGUF reload via llama-cli timed out on the runner even CPU-only with a tiny
context and 8 tokens. Root cause is the format, not the flags: the smoke exported
quantization_method='not_quantized', which maps to a bf16 GGUF, and llama.cpp's
bf16 CPU decode is unusably slow on the paravirtual macOS runner. Export q8_0
(fast_quantized, the exporter default and what users deploy) instead -- llama.cpp
has optimized q8_0 CPU kernels, so the fresh-process reload loads and generates in
seconds. The reload stays CPU-only (-ngl 0) with a small context.

* test: clear TRL shim before availability check

---------

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Co-authored-by: Daniel Han <danielhanchen@gmail.com>
Co-authored-by: Lee Jackson <130007945+Imagineer99@users.noreply.github.com>
Co-authored-by: imagineer99 <samleejackson0@gmail.com>
2026-07-02 23:02:26 +01:00
Gabriel Pereira Góes
22cd26f75d
feat: Implementation of the Portuguese (Brazil) language and VRAM/RAM monitor (#6509)
* feat: Implementation of the Portuguese (Brazil) language and VRAM/RAM monitor.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Update studio/frontend/src/hooks/use-gpu-utilization.ts

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

* Update studio/backend/main.py

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

* Update studio/backend/main.py

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* Update studio/backend/utils/hardware/hardware.py

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* Update studio/backend/utils/hardware/hardware.py

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* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* Update studio/frontend/src/features/settings/components/usage-examples.tsx

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* Update studio/backend/main.py

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* Update studio/backend/utils/hardware/hardware.py

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* Update studio/frontend/src/features/studio/sections/progress-section.tsx

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

* fix: resolve automated review feedback on API shape

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Fix review issues for PR #6509: Cpu icon, VRAM percent, system polling

- model-inspector: use the exported CpuIcon (Cpu is not a Hugeicons export)
- app-sidebar: guard the VRAM percent on totalVram to avoid Infinity, and
  reset the system poll cache only after each request settles so a slow probe
  is reused instead of stacking overlapping requests
- use-gpu-info: populate CPU/RAM on hosts without a GPU
- progress-section: label GPUs by visible_ordinal instead of array index
- hub-page: base the RAM label on systemRamTotalGb
- usage-examples: emit JS sampling and tool options at the top level instead
  of nesting them under extra_body (the JS SDK does not unwrap extra_body)
- main: read torch and transformers versions from package metadata instead of
  importing the libraries on every system poll, and guard the VRAM math
  against null values
- hardware: translate a leftover comment to English

* Harden /api/system: guard psutil.boot_time for PR #6509

Simulating restricted containers and some VMs (where psutil.boot_time can raise)
showed the /api/system endpoint would 500 on the unguarded boot_time call, the
same failure class already handled for cpu_freq, disk_usage, and Process. Wrap
boot_time and return uptime_seconds as null when it is unavailable so the sidebar
monitor degrades gracefully instead of breaking. Widen the uptime_seconds type to
number | null to match.

* Studio: make the sidebar hardware monitor a toggle (default on) for PR #6509

Adds a "Show hardware monitor" switch under Settings > Appearance > Layout,
backed by a localStorage preference (default on), mirroring the existing
useSidebarPin pattern. When turned off, the sidebar hides the VRAM/RAM meters
and useSystemInfo stops the 3s /api/system poll entirely, so no nvidia-smi /
SMI probes run while the monitor is disabled. Adds the en and pt-BR strings.

* Studio: default the sidebar hardware monitor to off (opt-in) for PR #6509

* Studio pt-BR: fix three small translation defects for PR #6509

- learningRateDescription: "5e-5 for CPT" -> "5e-5 para CPT" (leftover English)
- exportScopeRecents: "Recents" -> "Recentes" (untranslated)
- relativeMonthsAgo/relativeYearsAgo: add the missing space ("há {count} meses"/
  "há {count} anos") so they no longer render as "há 3meses"

* Studio pt-BR: translate the last 10 fallback keys for PR #6509

Adds the settings.general.storage block (Armazenamento) and the
settings.chat.modelDisclaimer pair, so pt-BR now covers all en keys
(679/679) with no English fallbacks.

* Studio: hide sidebar VRAM row on CPU-only hosts for PR #6509

* Studio: tighten and trim code comments for PR #6509

* fix: UI issue in the stop button dialog box (fine-tuning)

* Studio pt-BR: translate 18 new keys from main merge (password dialog, GGUF export, dataset streaming) for PR #6509

* Rounding to GB

* Fix/adjust System resources tab for PR #6509

* Fix/adjust GPU monitor review items for PR #6509

* Fix/adjust remaining GPU monitor review items for PR #6509

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Fix/adjust MLX resource fallback for PR #6509

* floating window implementation

* resize for floating window

* Fix resource monitor review items

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Restore frontend optional dependency lock entries

* Make GPU selection tests hermetic

* Fix GPU monitor CI test failures

* Bound MLX GGUF reload smoke

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Fix MLX GGUF reload smoke exit

---------

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Co-authored-by: Daniel Han <danielhanchen@gmail.com>
Co-authored-by: wasimysaid <wasimysdev@gmail.com>
2026-07-02 18:06:39 +02:00
Daniel Han
bc69dfad08
MLX CI: find llama-cli where save_pretrained_gguf actually installs it (#6777)
* MLX CI: find llama-cli where save_pretrained_gguf actually installs it

The GGUF reload step hardcoded the CWD-relative paths llama.cpp/llama-cli and
llama.cpp/build/bin/llama-cli, but save_pretrained_gguf builds and installs llama.cpp
under unsloth_zoo's LLAMA_CPP_DEFAULT_DIR ($UNSLOTH_LLAMA_CPP_PATH, else
~/.unsloth/llama.cpp), so the reload could not find the binary and failed the Mac M1
job with "llama-cli not found". _find_llama_cli now searches that install directory
(and honors the env override) before falling back to the old CWD layout, with a
recursive glob as a last resort. The search is a strict superset of the previous
paths, so it cannot regress a layout that already worked.

* MLX CI: return an absolute llama-cli path from the locator

Resolve the located binary to an absolute path. If UNSLOTH_LLAMA_CPP_PATH is a
relative directory (e.g. "."), Path(".") / "llama-cli" normalizes to the bare name
"llama-cli", and subprocess.run treats a separator-less argument as a PATH lookup
rather than a file to execute, raising FileNotFoundError. resolve() makes the returned
path absolute so it always runs the intended binary.

* MLX CI: give llama-cli EOF on stdin so GGUF reload cannot hang

With the binary now found, the GGUF reload actually invokes llama-cli and it timed
out after 300s generating 24 tokens on a 270m model, which is a stdin block rather
than slow generation: subprocess.run captured stdout/stderr but left stdin inherited,
so -no-cnv still left llama-cli waiting for interactive input. Pass
stdin=subprocess.DEVNULL so it receives an immediate EOF and runs the single prompt to
completion.

---------

Co-authored-by: danielhanchen <michaelhan2050@gmail.com>
2026-07-01 00:49:23 -07:00
Daniel Han
b72a8c4263
studio: explicit Cloudflare tunnel notice and public-exposure warning at startup (#6515)
* studio: announce Cloudflare tunnel state and warn about public exposure on startup

The startup banner only printed a line when a tunnel URL was up, so a plain
`unsloth studio -H 0.0.0.0` launch silently created a public trycloudflare.com
URL with no indication that Studio had become reachable from the internet. The
only hint at the tunnel was the CLI help, shown when an invalid command was typed.

Make the banner always state the tunnel state for wildcard binds:
- ON: the public URL plus a warning that anyone with it can reach Studio from
  outside the network, and that --no-cloudflare keeps it local-only.
- FAILED: requested but did not start (local network only).
- OFF: --no-cloudflare was passed (local network only).
Secure mode keeps its existing wording (the authenticated tunnel is intended and
--no-cloudflare is not valid there). Clarify the --cloudflare help text in both
the argparse and typer definitions. Default behavior is unchanged.

Also surface the state on the `unsloth studio run` banner, which runs the server
with silent=True and prints its own banner: it now calls _print_cloudflare_line
too, so the ON/OFF/FAILED notice and public-exposure warning are no longer
skipped on that path (previously it only echoed the URL when a tunnel was up).

For the OFF and FAILED notices, do not claim "local network only" when the
reachability probe just confirmed the raw port is reachable from the public
internet: --no-cloudflare and a failed tunnel disable only the Cloudflare link,
not the wildcard bind, so the message is reworded to flag the public raw port.

* Fix/adjust Cloudflare banner warnings for PR #6515

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Fix/adjust Cloudflare banner comments for PR #6515

* Fix/adjust IPv6 Cloudflare tunnel gate for PR #6515

* Fix/adjust Cloudflare review comments for PR #6515

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Fix silent run Cloudflare notice

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

---------

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Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
2026-06-30 17:47:48 +02:00
Daniel Han
4c72e09480
Studio: stop handing CI/user secrets to downloaded llama.cpp binaries (#6696)
* Studio: stop handing CI/user secrets to downloaded llama.cpp binaries

The macOS prebuilt path installs llama.cpp from the unslothai/llama.cpp
fork's latest (unpinned, mutable) release and then executes the
downloaded llama-server / llama-quantize binaries during install-time
validation. binary_env() built that child environment from a full
os.environ.copy(), so a compromised or tampered prebuilt would inherit
every secret in the process: HF_TOKEN and the workflow GitHub tokens in
CI, and HF / cloud credentials for end users running install.sh /
setup.sh.

We publish prebuilts daily, so pinning a release tag is not workable.
Instead, neutralise the impact: these binaries have no reason to read any
token, so strip secret-bearing variables (exact names plus
TOKEN/SECRET/PASSWORD/CREDENTIAL/PRIVATE_KEY/API_KEY markers) before
handing the env to a downloaded binary. The installer's own GitHub and
Hugging Face API calls read os.environ directly, so authentication and
release-API rate limiting are unaffected; PATH, LD_LIBRARY_PATH,
DYLD_LIBRARY_PATH and CUDA/ROCm vars are preserved. One change covers the
install-time validation path for all six macOS workflows and end users.

Follow-up (separate, sequenced): publish build-provenance attestations
from the fork's prebuilt workflows and verify them in CI, so a forged
release is rejected rather than merely starved of secrets.

* Strip KUBECONFIG, SSH_AUTH_SOCK, and PASSPHRASE-marked vars from binary env

Extend the deny-list per PR review: KUBECONFIG and SSH_AUTH_SOCK are
credential pointers/capabilities a downloaded binary never needs, and a
PASSPHRASE marker catches SSH_PASSPHRASE / GPG_PASSPHRASE. Tests updated.

* Studio: also scrub proxy/index env vars and URL-embedded credentials before running prebuilt binaries

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Scope mlx-ci secrets to the install + download commands for PR #6696

Drop the ambient step-level env block and pass GH/GITHUB/HF tokens only
on the installer and GGUF-download commands, so the directly invoked
llama-quantize / llama-server smoke runs see no secrets. The installer
still reads tokens from os.environ for the releases API and probe fetch.

* Trim verbose comments around the secret-env scrubber for PR #6696

Comment-only: condense the block comments added across this PR. Logic
unchanged (comment_tools.py check confirms code-only signature equal).

* Redirect HOME / cache pointers to an empty dir for prebuilt binaries (PR #6696)

Address Codex P2: stripping token env vars still let a tampered binary
read on-disk token stores (~/.cache/huggingface/token, ~/.aws/credentials,
~/.config/gh) through $HOME and the cache/config pointers. Point HOME plus
the HF / XDG / Windows home pointers at a single empty throwaway dir for
the downloaded-binary env. Defense in depth: a binary resolving the real
home via getpwuid is out of scope and needs OS sandboxing.

* Close residual credential-probe gaps for PR #6696

Address the latest Codex review:
- Strip token-only URL userinfo too (scheme://ghp_token@host), not just
  the user:pass form.
- Redirect HOMEDRIVE/HOMEPATH alongside USERPROFILE so a Windows binary
  cannot reconstruct the real profile from %HOMEDRIVE%%HOMEPATH%.
- Drop explicit credential-file pointers (NETRC, PIP_CONFIG_FILE,
  DOCKER_CONFIG, GIT_CONFIG_GLOBAL) that live outside HOME.
- Probe ldd with a secret-free env: linux_runtime_dirs ran ldd on the
  untrusted prebuilt with the inherited os.environ, and ldd may execute
  the binary, so it could observe HF_TOKEN/GITHUB_TOKEN during the probe.

Factored the shared scrub into secret_free_environ().

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Separate token-bearing install from binary smoke; drop CI command files (PR #6696)

Address the two P1s in the latest review:
- mlx-ci: GitHub bakes secrets into the run-script text, so inline token
  assignments in a step that later runs the prebuilt let a tampered binary
  read them from the script. Split into a token-bearing install + download
  step that never launches a binary, and a secret-free smoke step that runs
  llama-quantize / llama-server.
- secret_free_environ now drops the GitHub Actions command files
  (GITHUB_ENV, GITHUB_PATH, GITHUB_OUTPUT, GITHUB_STEP_SUMMARY, BASH_ENV) and
  the smoke step unsets them, so a tampered prebuilt cannot inject PATH/env
  into the later token-bearing MLX steps.

* Run the prebuilt smoke last, after all token-bearing steps (PR #6696)

Address the P1 workspace-poisoning vector: even with no secrets in its env,
a tampered prebuilt could edit the checkout or installed modules, and the
later HF_TOKEN MLX steps would then execute that poisoned code on push
builds. Move the prebuilt install + smoke to the end of the job so the
untrusted binary runs after every token-bearing step, leaving nothing for it
to corrupt. The MLX GGUF reload uses a source-built llama-cli, not this
prebuilt, so nothing depends on the earlier position.

* Trim comments around the secret-env scrubber and prebuilt CI steps (PR #6696)

Comment-only: condense the security-rationale block comments and merge the
duplicated prebuilt-step description in mlx-ci. Logic unchanged
(comment_tools.py check confirms the code-only signature is equal; install
suite still passes).

* Authenticate the GGUF export release-API lookup with the read-only GITHUB_TOKEN (PR #6696)

* Rename env scrubber off the secret-named identifier CodeQL flags as a clear-text sink (PR #6696)

---------

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2026-06-27 05:21:05 -07:00
Daniel Han
1fcd69e662
Harden flaky Studio CI: retry VS-hide rename and tolerate same-URL nav interrupt (#6713)
Two intermittent Studio CI failures, both runner-environment flakes unrelated
to test logic:

Windows 'Studio install + inference without Visual Studio': the 'Hide Visual
Studio + CMake' step renames C:\Program Files\Microsoft Visual Studio to
simulate a host with no build tools. A background handle on a Program Files
directory (Defender scan or an MSBuild node) makes Rename-Item intermittently
fail with 'Access is denied', and $ErrorActionPreference = Stop turns that into
a hard job failure. Wrap the VS and cmake renames in both Hide steps in a short
Rename-WithRetry (6 tries, 3s apart) to ride out the transient lock.

macOS 'Chat UI Tests': the re-login goto to /login can be interrupted by the
SPA auth guard redirecting to the same /login URL, which Playwright reports as
'Navigation to .../login is interrupted by another navigation to .../login'.
The goto already tolerated ERR_ABORTED; broaden it to also tolerate the same-URL
interrupt (the password-field wait right after confirms we landed on /login),
and add the same signature to the two Playwright flake-retry harnesses as a
safety net for any other navigation.

Validated: playwright_chat_ui.py parses + byte-compiles, both workflow YAMLs
parse, bash -n on the retry harnesses, PowerShell AST parse on all pwsh steps,
and a functional check of Rename-WithRetry (succeeds, and rethrows after
exhausting retries).
2026-06-26 19:45:46 -07:00
James Dawdy
b693ed7c91
fix: wrap unprotected evaluate() calls with robust_evaluate() to handle navigation context loss (#6677)
* fix: wrap unprotected evaluate() calls with robust_evaluate() to handle navigation context loss

Fixes PR #5911 - Playwright UI test error: 'Execution context was destroyed'

The test had several direct page.evaluate() and locator.evaluate() calls that
weren't wrapped with robust_evaluate(), which retries when navigation destroys
the execution context mid-operation.

Changes:
- Wrap picker_visible_text() evaluate in robust_evaluate()
- Wrap _bubble_count() evaluate in robust_evaluate()
- Wrap assistant text query in robust_evaluate()
- Wrap theme_item click evaluation in robust_evaluate()
- Wrap background color/theme query in robust_evaluate()

This ensures all execution context losses from concurrent navigation are
properly caught and retried with exponential backoff, preventing transient
failures in the UI test suite.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* fix: revert robust_evaluate on theme_item.evaluate per Codex review

The theme_item.evaluate('el => el.click()') is side-effecting — retrying
after a context loss could double-toggle the theme. It's already inside
a 3-attempt try/except loop that handles click failures gracefully.

The other 4 changes (all read-only queries) remain wrapped in
robust_evaluate() since retrying them is safe.

* fix: wrap remaining chat UI evaluate

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Lee Jackson <130007945+Imagineer99@users.noreply.github.com>
Co-authored-by: imagineer99 <samleejackson0@gmail.com>
2026-06-26 16:56:52 +01:00