unsloth/.github/workflows/studio-inference-smoke.yml
Daniel Han 8ca0455be4
studio/ci: sweep actions/cache v5 hardening across sibling smoke workflows (#5399)
* studio/ci: sweep actions/cache@v5 hardening across sibling smoke workflows

Follow-up to PR 5396, which fixed the same flake in
studio-windows-inference-smoke.yml. actions/cache@v5 has a recurring
mode where it logs `Cache hit for: <key>` and then exits non-zero
without extracting the archive (see actions/cache#1621 and github
community discussion #163260). 12 cache blocks across 8 sibling Studio
smoke workflows remained on the vulnerable one-step pattern and would
abort before priming HF_HOME / installing Studio on the same flake.

Apply the same restore + save split mechanically to every block:

  - actions/cache/restore@<v5.0.5 sha> with continue-on-error: true
  - Prime/Download gate widened to also fire on outcome != 'success'
    so the silent-restore-failure path re-downloads
  - actions/cache/save@<v5.0.5 sha> with continue-on-error: true,
    gated on the Prime/Download outcome so we only write a fresh entry
    when we actually rebuilt the directory

Same SHA-pinned action, same cache keys (character-identical), same
paths. Existing cache entries keep matching. Only behavior change is
that a transient restore-side or save-side failure now falls through
to a re-download instead of failing the job.

Files touched (12 cache blocks total):
  studio-api-smoke.yml             (1 block)
  studio-mac-api-smoke.yml         (1 block)
  studio-mac-ui-smoke.yml          (1 block)
  studio-ui-smoke.yml              (1 block)
  studio-windows-api-smoke.yml     (1 block)
  studio-windows-ui-smoke.yml      (1 block)
  studio-inference-smoke.yml       (3 blocks: HF, GGUF flat, HF+mmproj)
  studio-mac-inference-smoke.yml   (3 blocks: HF, GGUF flat, HF+mmproj)

Verification: all 12 single-step actions/cache@ uses removed, replaced
by 12 restore@ + 12 save@; every file parses as valid YAML.

* studio/ci: drop continue-on-error from cache/save steps

Reverting the save-side continue-on-error addition. Defensive masking
of save failures was correct in principle but loses signal:

  - cache/save@v5.0.5 already swallows ReserveCacheError (the most
    common save flake) as a non-fatal core.info, so the mask was
    rarely doing anything today.
  - A real save-side failure (sustained cache backend outage, blob
    server 5xx storm) is something we want to see, not hide. Without
    the signal we would see slow CI for days without knowing the cache
    layer is broken.
  - If save flakes start showing up in practice we add this back with
    concrete evidence.

The restore-side continue-on-error stays -- that is the actual fix
for actions/cache#1621 silent-restore-failures and removing it would
re-introduce the bug.
2026-05-12 05:47:41 -07:00

891 lines
40 KiB
YAML

# SPDX-License-Identifier: AGPL-3.0-only
# Copyright 2026-present the Unsloth AI Inc. team. All rights reserved.
# Three end-to-end smoke jobs that boot a freshly-installed Studio and
# exercise the surfaces real users hit through the OpenAI / Anthropic
# SDKs and curl. Each job picks the smallest model that exercises the
# behaviour under test, primes HF_HOME via actions/cache, and shares
# the install.sh --local --no-torch bootstrap.
#
# 1. OpenAI, Anthropic API tests
# gemma-3-270m-it UD-Q4_K_XL (~254 MiB).
# Password rotation via /api/auth/change-password (old fails,
# new works), then OpenAI + Anthropic Python SDKs against /v1/*
# with temperature=0 and a fixed seed. Asserts the four-turn
# conversation is deterministic across two runs.
#
# 2. Tool calling Tests
# Qwen3.5-2B UD-IQ3_XXS (~890 MiB). OpenAI function calling,
# server-side tools (python, terminal, web_search) via
# enable_tools / enabled_tools, and enable_thinking on/off.
#
# 3. JSON, images
# gemma-4-E2B-it UD-IQ3_XXS (~2.4 GiB) + mmproj-F16 (~986 MiB).
# response_format JSON-schema decoding and OpenAI image_url
# (data URI) plus Anthropic source/base64 image inputs.
#
# All three jobs run in parallel. Total wall time is dominated by job 3
# on a cold cache; warm cache cuts that to ~3 min.
name: Studio GGUF CI
on:
pull_request:
paths:
- 'studio/**'
- 'unsloth/**'
- 'unsloth_cli/**'
- 'install.sh'
- 'pyproject.toml'
- '.github/workflows/studio-inference-smoke.yml'
push:
branches: [main, pip]
# Manual trigger for pre-warming HF_HOME caches on main, or re-running
# against an arbitrary branch without pushing a no-op commit.
workflow_dispatch:
concurrency:
group: ${{ github.workflow }}-${{ github.ref }}
cancel-in-progress: true
permissions:
contents: read
jobs:
# ─────────────────────────────────────────────────────────────────────
# Job 1: OpenAI, Anthropic API tests
# ─────────────────────────────────────────────────────────────────────
openai-anthropic:
name: OpenAI, Anthropic API tests
runs-on: ubuntu-latest
timeout-minutes: 25
env:
GGUF_REPO: unsloth/gemma-3-270m-it-GGUF
GGUF_VARIANT: UD-Q4_K_XL
GGUF_FILE: gemma-3-270m-it-UD-Q4_K_XL.gguf
STUDIO_PORT: '18888'
HF_HOME: ${{ github.workspace }}/hf-cache
steps:
- uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
- name: Linux deps for llama.cpp prebuilt
run: |
sudo apt-get update
sudo apt-get install -y --no-install-recommends \
libcurl4-openssl-dev libssl-dev jq
- uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
with:
node-version: '22'
cache: 'npm'
cache-dependency-path: studio/frontend/package-lock.json
- uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
with:
python-version: '3.12'
cache: 'pip'
- name: Restore HF_HOME for ${{ env.GGUF_REPO }}
id: cache-hf
uses: actions/cache/restore@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
continue-on-error: true
with:
path: hf-cache
key: ${{ runner.os }}-hf-${{ env.GGUF_REPO }}-${{ env.GGUF_VARIANT }}-v1
- name: Prime HF_HOME with the GGUF
id: prime-hf
if: steps.cache-hf.outputs.cache-hit != 'true' || steps.cache-hf.outcome != 'success'
env:
HF_TOKEN: ${{ secrets.HF_TOKEN }}
run: |
python -m pip install --upgrade huggingface_hub hf_transfer
mkdir -p hf-cache
HF_HUB_ENABLE_HF_TRANSFER=1 \
hf download "$GGUF_REPO" "$GGUF_FILE"
- name: Save HF_HOME for ${{ env.GGUF_REPO }}
if: always() && steps.prime-hf.outcome == 'success'
uses: actions/cache/save@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
with:
path: hf-cache
key: ${{ runner.os }}-hf-${{ env.GGUF_REPO }}-${{ env.GGUF_VARIANT }}-v1
- name: Install Studio (--local, --no-torch)
env:
GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
run: |
mkdir -p logs
set -o pipefail
bash install.sh --local --no-torch 2>&1 | tee logs/install.log
- name: Install OpenAI + Anthropic Python SDKs
run: pip install 'openai>=1.50' 'anthropic>=0.40'
- name: Reset auth + boot Studio (API-only)
run: |
unsloth studio reset-password
mkdir -p logs
UNSLOTH_API_ONLY=1 unsloth studio -H 127.0.0.1 -p "$STUDIO_PORT" \
> logs/studio.log 2>&1 &
echo "STUDIO_PID=$!" >> "$GITHUB_ENV"
- name: Wait for /api/health
run: |
for i in $(seq 1 180); do
if curl -fs "http://127.0.0.1:${STUDIO_PORT}/api/health" > /tmp/health.json; then
jq -e '.status == "healthy"' /tmp/health.json
exit 0
fi
sleep 1
done
echo "Studio did not become healthy in 180s"
tail -200 logs/studio.log
exit 1
- name: Password rotation (old must fail, new must work)
run: |
OLD=$(cat ~/.unsloth/studio/auth/.bootstrap_password)
NEW="CIRotated-$(python -c 'import secrets; print(secrets.token_urlsafe(12))')"
echo "::add-mask::$OLD"
echo "::add-mask::$NEW"
# 1. Login with the bootstrap password.
OLD_TOKEN=$(curl -fs -X POST "http://127.0.0.1:${STUDIO_PORT}/api/auth/login" \
-H 'content-type: application/json' \
-d "{\"username\":\"unsloth\",\"password\":\"$OLD\"}" | jq -r .access_token)
[ -n "$OLD_TOKEN" ] && [ "$OLD_TOKEN" != "null" ] || { echo "bootstrap login failed"; exit 1; }
# 2. Rotate to a fresh random password.
curl -fs -X POST "http://127.0.0.1:${STUDIO_PORT}/api/auth/change-password" \
-H "Authorization: Bearer $OLD_TOKEN" -H 'content-type: application/json' \
-d "{\"current_password\":\"$OLD\",\"new_password\":\"$NEW\"}" > /dev/null
# 3. Old password must now be rejected (HTTP 401).
OLD_STATUS=$(curl -s -o /dev/null -w '%{http_code}' \
-X POST "http://127.0.0.1:${STUDIO_PORT}/api/auth/login" \
-H 'content-type: application/json' \
-d "{\"username\":\"unsloth\",\"password\":\"$OLD\"}")
if [ "$OLD_STATUS" != "401" ]; then
echo "::error::Login with old password returned $OLD_STATUS, expected 401"
exit 1
fi
# 4. New password must succeed; capture the JWT for downstream steps.
NEW_TOKEN=$(curl -fs -X POST "http://127.0.0.1:${STUDIO_PORT}/api/auth/login" \
-H 'content-type: application/json' \
-d "{\"username\":\"unsloth\",\"password\":\"$NEW\"}" | jq -r .access_token)
[ -n "$NEW_TOKEN" ] && [ "$NEW_TOKEN" != "null" ] || { echo "new login failed"; exit 1; }
echo "TOKEN=$NEW_TOKEN" >> "$GITHUB_ENV"
echo "password rotation OK (old=401, new=200)"
- name: Load the GGUF (HF repo + variant, served from HF_HOME cache)
run: |
curl -fs -X POST "http://127.0.0.1:${STUDIO_PORT}/api/inference/load" \
-H "Authorization: Bearer $TOKEN" -H 'content-type: application/json' \
--max-time 600 \
-d "{\"model_path\":\"$GGUF_REPO\",\"gguf_variant\":\"$GGUF_VARIANT\",\"is_lora\":false,\"max_seq_length\":2048}" \
| jq '{status, display_name, is_gguf, context_length}'
- name: Multi-turn determinism via OpenAI + Anthropic SDKs
env:
BASE_URL: http://127.0.0.1:18888
run: |
python - <<'PY'
import json
import os
from openai import OpenAI
from anthropic import Anthropic
BASE = os.environ["BASE_URL"]
KEY = os.environ["TOKEN"] # JWT also accepted as Bearer on /v1/*
SEED = 3407
# Four-turn conversation: the second and fourth turns can only be
# answered correctly if the model sees the prior turns, so this
# also exercises the conversation-history wiring.
PROMPTS = [
"What is 1+1?",
"What did I ask before?",
"What is the capital of France?",
"Repeat the city name",
]
def run_openai():
client = OpenAI(base_url = f"{BASE}/v1", api_key = KEY)
history, replies = [], []
for prompt in PROMPTS:
history.append({"role": "user", "content": prompt})
resp = client.chat.completions.create(
model = "default",
messages = history,
temperature = 0.0,
max_tokens = 80,
seed = SEED,
extra_body = {"enable_thinking": False},
)
text = resp.choices[0].message.content or ""
replies.append(text)
history.append({"role": "assistant", "content": text})
return replies
def run_anthropic():
# Two SDK quirks vs. Studio:
# 1. base_url must NOT include /v1 -- the SDK appends
# /v1/messages itself; otherwise the request hits
# /v1/v1/messages and 405s.
# 2. The SDK sends `x-api-key` by default, but Studio's
# auth layer is HTTPBearer-only. Override via
# default_headers so Authorization: Bearer ... is
# sent instead.
client = Anthropic(
base_url = BASE,
api_key = "unused",
default_headers = {"Authorization": f"Bearer {KEY}"},
)
history, replies = [], []
for prompt in PROMPTS:
history.append({"role": "user", "content": prompt})
msg = client.messages.create(
model = "default",
max_tokens = 80,
messages = history,
temperature = 0.0,
extra_body = {"seed": SEED, "enable_thinking": False},
)
text = "".join(b.text for b in msg.content if getattr(b, "type", None) == "text")
replies.append(text)
history.append({"role": "assistant", "content": text})
return replies
for label, runner in (("openai", run_openai), ("anthropic", run_anthropic)):
first = runner()
second = runner()
for i, (a, b) in enumerate(zip(first, second), start = 1):
print(f"[{label} turn {i}] {a!r}")
assert a, f"{label}: empty turn {i} response"
assert a == b, (
f"{label} non-deterministic at turn {i} with temperature=0.0:\n"
f" run1: {a!r}\n run2: {b!r}"
)
# Sanity: turn-2 reply should mention the earlier question, and
# turn-4 reply should mention Paris (model echoes the city it
# produced for turn 3). Lower-cased substring checks keep the
# assertion robust to formatting jitter.
joined = " ".join(first).lower()
assert "1" in first[0], f"{label}: turn-1 answer should contain '1', got {first[0]!r}"
assert "paris" in joined, f"{label}: expected 'paris' somewhere in the four-turn transcript: {first}"
print(f"[{label}] OK -- 4 turns, run1 == run2, history grounded")
PY
- name: Stop Studio
if: always()
run: |
kill "${STUDIO_PID}" 2>/dev/null || true
sleep 2
ss -tln | grep ":${STUDIO_PORT}" || true
- name: Upload logs
# Always upload so green runs are still reviewable.
if: always()
uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
with:
name: openai-anthropic-log
path: |
logs/studio.log
logs/install.log
retention-days: 7
# ─────────────────────────────────────────────────────────────────────
# Job 2: Tool calling Tests
# ─────────────────────────────────────────────────────────────────────
tool-calling:
name: Tool calling Tests
runs-on: ubuntu-latest
timeout-minutes: 25
env:
# Tool calling is the highest-volume GGUF in this workflow
# (Qwen3.5-2B at IQ3_XXS = ~890 MiB). Caching HF_HOME would
# store xet chunks + blobs + snapshots = ~4 GiB compressed --
# 4-5x file-size inflation, dominated by xet chunks. Use main's
# `--local-dir gguf-cache` pattern to cache the flat .gguf only.
# Studio's /api/inference/load accepts either a HF repo (which
# uses HF_HOME) or an absolute file path; passing the absolute
# path keeps the test off HF_HOME entirely so the cache size
# tracks the GGUF file 1:1. The OpenAI/Anth and JSON+images
# jobs still cover the gguf_variant resolution path.
GGUF_REPO: unsloth/Qwen3.5-2B-GGUF
GGUF_FILE: Qwen3.5-2B-UD-IQ3_XXS.gguf
STUDIO_PORT: '18889'
steps:
- uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
- name: Linux deps for llama.cpp prebuilt
run: |
sudo apt-get update
sudo apt-get install -y --no-install-recommends \
libcurl4-openssl-dev libssl-dev jq
- uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
with:
node-version: '22'
cache: 'npm'
cache-dependency-path: studio/frontend/package-lock.json
- uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
with:
python-version: '3.12'
cache: 'pip'
- name: Restore GGUF model file
id: cache-gguf
uses: actions/cache/restore@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
continue-on-error: true
with:
path: gguf-cache
key: ${{ runner.os }}-gguf-${{ env.GGUF_REPO }}-${{ env.GGUF_FILE }}-v1
- name: Download GGUF if cache miss
id: download-gguf
if: steps.cache-gguf.outputs.cache-hit != 'true' || steps.cache-gguf.outcome != 'success'
env:
HF_TOKEN: ${{ secrets.HF_TOKEN }}
run: |
python -m pip install --upgrade huggingface_hub hf_transfer
mkdir -p gguf-cache
HF_HUB_ENABLE_HF_TRANSFER=1 \
hf download "$GGUF_REPO" "$GGUF_FILE" --local-dir gguf-cache
- name: Save GGUF model file
if: always() && steps.download-gguf.outcome == 'success'
uses: actions/cache/save@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
with:
path: gguf-cache
key: ${{ runner.os }}-gguf-${{ env.GGUF_REPO }}-${{ env.GGUF_FILE }}-v1
- name: Install Studio (--local, --no-torch)
env:
GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
run: |
mkdir -p logs
set -o pipefail
bash install.sh --local --no-torch 2>&1 | tee logs/install.log
- name: Reset auth + boot Studio (API-only, default tool policy)
# We deliberately use the API-only mode rather than
# `unsloth studio run` because the latter calls
# `set_tool_policy(...)` with a resolved bool: on loopback the
# default resolves to True, which forces every request through
# the server-side agentic loop and breaks the standard
# function-calling test below. API-only mode leaves
# tool_policy=None so each request's `enable_tools` field is
# honoured.
run: |
unsloth studio reset-password
mkdir -p logs
UNSLOTH_API_ONLY=1 unsloth studio -H 127.0.0.1 -p "$STUDIO_PORT" \
> logs/studio.log 2>&1 &
echo "STUDIO_PID=$!" >> "$GITHUB_ENV"
- name: Wait for /api/health, log in, change password, load model
run: |
for i in $(seq 1 180); do
if curl -fs "http://127.0.0.1:${STUDIO_PORT}/api/health" > /tmp/health.json; then
jq -e '.status == "healthy"' /tmp/health.json && break
fi
sleep 1
done
jq -e '.status == "healthy"' /tmp/health.json
OLD=$(cat ~/.unsloth/studio/auth/.bootstrap_password)
NEW="CITool-$(python -c 'import secrets; print(secrets.token_urlsafe(12))')"
echo "::add-mask::$OLD"
echo "::add-mask::$NEW"
OLD_TOKEN=$(curl -fs -X POST "http://127.0.0.1:${STUDIO_PORT}/api/auth/login" \
-H 'content-type: application/json' \
-d "{\"username\":\"unsloth\",\"password\":\"$OLD\"}" | jq -r .access_token)
curl -fs -X POST "http://127.0.0.1:${STUDIO_PORT}/api/auth/change-password" \
-H "Authorization: Bearer $OLD_TOKEN" -H 'content-type: application/json' \
-d "{\"current_password\":\"$OLD\",\"new_password\":\"$NEW\"}" > /dev/null
TOKEN=$(curl -fs -X POST "http://127.0.0.1:${STUDIO_PORT}/api/auth/login" \
-H 'content-type: application/json' \
-d "{\"username\":\"unsloth\",\"password\":\"$NEW\"}" | jq -r .access_token)
echo "API_KEY=$TOKEN" >> "$GITHUB_ENV"
GGUF_PATH="$GITHUB_WORKSPACE/gguf-cache/${GGUF_FILE}"
ls -lh "$GGUF_PATH"
curl -fs -X POST "http://127.0.0.1:${STUDIO_PORT}/api/inference/load" \
-H "Authorization: Bearer $TOKEN" -H 'content-type: application/json' \
--max-time 600 \
-d "{\"model_path\":\"$GGUF_PATH\",\"is_lora\":false,\"max_seq_length\":2048}" \
| jq '{status, display_name}'
- name: Tool calling, server-side tools, thinking on/off
env:
BASE_URL: http://127.0.0.1:18889
run: |
python - <<'PY'
import json
import os
import urllib.request
BASE = os.environ["BASE_URL"]
KEY = os.environ["API_KEY"]
SEED = 3407
def post(path, body, *, timeout = 240):
"""Plain JSON POST. For requests that don't go through
the server-side agentic loop, the response is one JSON
object."""
data = json.dumps(body).encode()
req = urllib.request.Request(
f"{BASE}{path}",
data = data,
method = "POST",
headers = {
"Authorization": f"Bearer {KEY}",
"Content-Type": "application/json",
},
)
with urllib.request.urlopen(req, timeout = timeout) as resp:
return resp.status, json.loads(resp.read().decode())
def post_sse(path, body, *, timeout = 600):
"""POST a streaming request and accumulate the assistant
text deltas. The server-side agentic loop ALWAYS returns
SSE regardless of the request's `stream` field, so any
call with enable_tools=true must use this helper."""
body = {**body, "stream": True}
data = json.dumps(body).encode()
req = urllib.request.Request(
f"{BASE}{path}",
data = data,
method = "POST",
headers = {
"Authorization": f"Bearer {KEY}",
"Content-Type": "application/json",
},
)
parts = []
with urllib.request.urlopen(req, timeout = timeout) as resp:
for raw in resp:
line = raw.decode().strip()
if not line.startswith("data: "):
continue
payload = line[6:]
if payload == "[DONE]":
break
try:
chunk = json.loads(payload)
except json.JSONDecodeError:
continue
for choice in chunk.get("choices", []):
delta = choice.get("delta", {}) or {}
if delta.get("content"):
parts.append(delta["content"])
return "".join(parts)
# ── 1. Standard OpenAI function calling ──────────────────────
weather_tool = {
"type": "function",
"function": {
"name": "get_weather",
"description": "Get current weather for a city.",
"parameters": {
"type": "object",
"properties": {"city": {"type": "string"}},
"required": ["city"],
},
},
}
status, data = post("/v1/chat/completions", {
"messages": [{"role": "user", "content": "What is the weather in Paris?"}],
"tools": [weather_tool],
"tool_choice": "required",
"stream": False,
"temperature": 0.0,
"seed": SEED,
"max_tokens": 120,
})
assert status == 200, f"tool call status {status}: {data}"
choice = data["choices"][0]
assert choice["finish_reason"] == "tool_calls", f"finish_reason={choice['finish_reason']!r}"
tc = choice["message"]["tool_calls"][0]
assert tc["function"]["name"] == "get_weather"
args = json.loads(tc["function"]["arguments"])
assert args.get("city"), f"missing city arg: {args}"
print(f"[tools] PASS function calling -> {tc['function']['name']}({args})")
# ── 2. Server-side python tool ───────────────────────────────
# 123 * 456 = 56088. The agentic loop streams SSE; we
# accumulate the assistant text and look for the answer. We
# accept "56088" or "56,088" since the model may format it.
content = post_sse("/v1/chat/completions", {
"messages": [{"role": "user", "content": "What is 123 * 456? Use the python tool to compute it and tell me the number."}],
"enable_tools": True,
"enabled_tools": ["python"],
"session_id": "ci-tool-calling-py",
"temperature": 0.0,
"seed": SEED,
"max_tokens": 600,
})
assert "56088" in content or "56,088" in content, (
f"expected 56088 in python-tool answer, got: {content!r}"
)
print(f"[tools] PASS python tool ({len(content)} chars)")
# ── 3. Server-side bash (terminal) tool ──────────────────────
content = post_sse("/v1/chat/completions", {
"messages": [{"role": "user", "content": "Use the terminal tool to run `echo hello-bash-tool` and tell me the exact output."}],
"enable_tools": True,
"enabled_tools": ["terminal"],
"session_id": "ci-tool-calling-bash",
"temperature": 0.0,
"seed": SEED,
"max_tokens": 600,
})
assert "hello-bash-tool" in content, (
f"expected 'hello-bash-tool' in terminal-tool answer, got: {content!r}"
)
print(f"[tools] PASS bash/terminal tool ({len(content)} chars)")
# ── 4. Server-side web_search tool ───────────────────────────
# DuckDuckGo is flaky from CI runners and small Qwen3.5-2B
# may not actually search. Only assert that the SSE stream
# opens and yields any data; HTTP / parser failures already
# raise above.
try:
content = post_sse("/v1/chat/completions", {
"messages": [{"role": "user", "content": "Search the web for 'unsloth ai github' and summarise."}],
"enable_tools": True,
"enabled_tools": ["web_search"],
"session_id": "ci-tool-calling-web",
"temperature": 0.0,
"seed": SEED,
"max_tokens": 400,
})
print(f"[tools] PASS web_search stream ({len(content)} chars)")
except Exception as exc:
print(f"[tools] WARN web_search probe failed (non-blocking): {exc}")
# ── 5. Thinking on / off ─────────────────────────────────────
# Studio strips think blocks from message.content for tools-mode
# responses, so we toggle plain chat (no enable_tools) and look
# at the surfaced reasoning_content / message.thinking field.
def thinking_call(enable):
status, data = post("/v1/chat/completions", {
"messages": [{"role": "user", "content": "Briefly: is 17 prime?"}],
"stream": False,
"enable_thinking": enable,
"temperature": 0.0,
"seed": SEED,
"max_tokens": 300,
})
assert status == 200
msg = data["choices"][0]["message"]
# Studio surfaces thinking via reasoning_content (OpenAI
# extension). Fall back to inline <think> markers for
# robustness across template versions.
raw = (msg.get("content") or "") + (msg.get("reasoning_content") or "")
return raw
on_text = thinking_call(True)
off_text = thinking_call(False)
had_think_on = ("<think>" in on_text) or len(on_text) > 80
had_think_off = ("<think>" in off_text) and len(off_text) > 0
assert had_think_on, (
f"enable_thinking=True produced no thinking signal: {on_text!r}"
)
# Off-mode should not contain the literal <think> marker.
assert "<think>" not in off_text, (
f"enable_thinking=False but <think> still present: {off_text!r}"
)
print(f"[tools] PASS thinking on/off (on={len(on_text)} chars, off={len(off_text)} chars)")
PY
- name: Stop Studio
if: always()
run: |
kill "${STUDIO_PID}" 2>/dev/null || true
sleep 2
ss -tln | grep ":${STUDIO_PORT}" || true
- name: Upload logs
# Always upload so green runs are still reviewable.
if: always()
uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
with:
name: tool-calling-log
path: |
logs/studio.log
logs/install.log
retention-days: 7
# ─────────────────────────────────────────────────────────────────────
# Job 3: JSON, images
# ─────────────────────────────────────────────────────────────────────
json-images:
name: JSON, images
runs-on: ubuntu-latest
timeout-minutes: 30
env:
GGUF_REPO: unsloth/gemma-4-E2B-it-GGUF
GGUF_VARIANT: UD-IQ3_XXS
GGUF_FILE: gemma-4-E2B-it-UD-IQ3_XXS.gguf
MMPROJ_FILE: mmproj-F16.gguf
STUDIO_PORT: '18890'
HF_HOME: ${{ github.workspace }}/hf-cache
steps:
- uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
- name: Linux deps for llama.cpp prebuilt
run: |
sudo apt-get update
sudo apt-get install -y --no-install-recommends \
libcurl4-openssl-dev libssl-dev jq
- uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
with:
node-version: '22'
cache: 'npm'
cache-dependency-path: studio/frontend/package-lock.json
- uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
with:
python-version: '3.12'
cache: 'pip'
- name: Restore HF_HOME for ${{ env.GGUF_REPO }} (model + mmproj)
id: cache-hf
uses: actions/cache/restore@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
continue-on-error: true
with:
path: hf-cache
key: ${{ runner.os }}-hf-${{ env.GGUF_REPO }}-${{ env.GGUF_VARIANT }}-${{ env.MMPROJ_FILE }}-v1
- name: Prime HF_HOME with the GGUF + mmproj
id: prime-hf
if: steps.cache-hf.outputs.cache-hit != 'true' || steps.cache-hf.outcome != 'success'
env:
HF_TOKEN: ${{ secrets.HF_TOKEN }}
run: |
python -m pip install --upgrade huggingface_hub hf_transfer
mkdir -p hf-cache
HF_HUB_ENABLE_HF_TRANSFER=1 \
hf download "$GGUF_REPO" "$GGUF_FILE"
HF_HUB_ENABLE_HF_TRANSFER=1 \
hf download "$GGUF_REPO" "$MMPROJ_FILE"
- name: Save HF_HOME for ${{ env.GGUF_REPO }} (model + mmproj)
if: always() && steps.prime-hf.outcome == 'success'
uses: actions/cache/save@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
with:
path: hf-cache
key: ${{ runner.os }}-hf-${{ env.GGUF_REPO }}-${{ env.GGUF_VARIANT }}-${{ env.MMPROJ_FILE }}-v1
- name: Install Studio (--local, --no-torch)
env:
GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
run: |
mkdir -p logs
set -o pipefail
bash install.sh --local --no-torch 2>&1 | tee logs/install.log
- name: Install OpenAI + Anthropic Python SDKs
run: pip install 'openai>=1.50' 'anthropic>=0.40'
- name: Reset auth + boot Studio (API-only)
# See Job 2's comment: API-only mode keeps tool_policy=None so
# response_format requests aren't routed through the agentic
# tool loop.
run: |
unsloth studio reset-password
mkdir -p logs
UNSLOTH_API_ONLY=1 unsloth studio -H 127.0.0.1 -p "$STUDIO_PORT" \
> logs/studio.log 2>&1 &
echo "STUDIO_PID=$!" >> "$GITHUB_ENV"
- name: Wait for /api/health, log in, change password, load model
run: |
for i in $(seq 1 180); do
if curl -fs "http://127.0.0.1:${STUDIO_PORT}/api/health" > /tmp/health.json; then
jq -e '.status == "healthy"' /tmp/health.json && break
fi
sleep 1
done
jq -e '.status == "healthy"' /tmp/health.json
OLD=$(cat ~/.unsloth/studio/auth/.bootstrap_password)
NEW="CIJson-$(python -c 'import secrets; print(secrets.token_urlsafe(12))')"
echo "::add-mask::$OLD"
echo "::add-mask::$NEW"
OLD_TOKEN=$(curl -fs -X POST "http://127.0.0.1:${STUDIO_PORT}/api/auth/login" \
-H 'content-type: application/json' \
-d "{\"username\":\"unsloth\",\"password\":\"$OLD\"}" | jq -r .access_token)
curl -fs -X POST "http://127.0.0.1:${STUDIO_PORT}/api/auth/change-password" \
-H "Authorization: Bearer $OLD_TOKEN" -H 'content-type: application/json' \
-d "{\"current_password\":\"$OLD\",\"new_password\":\"$NEW\"}" > /dev/null
TOKEN=$(curl -fs -X POST "http://127.0.0.1:${STUDIO_PORT}/api/auth/login" \
-H 'content-type: application/json' \
-d "{\"username\":\"unsloth\",\"password\":\"$NEW\"}" | jq -r .access_token)
echo "API_KEY=$TOKEN" >> "$GITHUB_ENV"
# Load the GGUF (mmproj is auto-detected via the HF repo
# lookup, the cached file is pulled out of HF_HOME).
curl -fs -X POST "http://127.0.0.1:${STUDIO_PORT}/api/inference/load" \
-H "Authorization: Bearer $TOKEN" -H 'content-type: application/json' \
--max-time 900 \
-d "{\"model_path\":\"$GGUF_REPO\",\"gguf_variant\":\"$GGUF_VARIANT\",\"is_lora\":false,\"max_seq_length\":2048}" \
| jq '{status, display_name, is_vision}'
- name: JSON schema decoding + image input
env:
BASE_URL: http://127.0.0.1:18890
run: |
python - <<'PY'
import base64
import json
import os
import urllib.request
from openai import OpenAI
from anthropic import Anthropic
BASE = os.environ["BASE_URL"]
KEY = os.environ["API_KEY"]
SEED = 3407
def post(path, body, *, timeout = 240):
req = urllib.request.Request(
f"{BASE}{path}",
data = json.dumps(body).encode(),
method = "POST",
headers = {
"Authorization": f"Bearer {KEY}",
"Content-Type": "application/json",
},
)
with urllib.request.urlopen(req, timeout = timeout) as resp:
return resp.status, json.loads(resp.read().decode())
# ── 1. response_format = json_object (JSON mode) ─────────────
# llama.cpp's HTTP server supports OpenAI-compatible JSON
# mode: `response_format: {"type": "json_object"}` constrains
# the model to emit syntactically-valid JSON. We use raw HTTP
# rather than the OpenAI SDK so that the field shape Studio
# forwards to llama-server is unambiguous (the SDK rewrites
# response_format depending on which variant it recognises).
# We deliberately do NOT pass a strict JSON schema -- on
# small Gemma-4 quants the GBNF-from-schema path occasionally
# produces empty output, and JSON mode is the surface we care
# about exposing through Studio.
status, data = post("/v1/chat/completions", {
"model": "default",
"messages": [
{"role": "system", "content": 'Reply with a single JSON object of the form {"city": "...", "country": "..."}. Output ONLY the JSON, nothing else.'},
{"role": "user", "content": "What is the capital of France?"},
],
"temperature": 0.0,
"max_tokens": 200,
"seed": SEED,
"stream": False,
"enable_thinking": False,
"response_format": {"type": "json_object"},
}, timeout = 600)
assert status == 200, f"json status {status}: {data}"
content = (data["choices"][0]["message"].get("content") or "").strip()
# Some chat templates wrap JSON in ```json fences even in JSON
# mode -- strip those before parsing.
if content.startswith("```"):
content = content.split("```", 2)[1]
if content.startswith("json"):
content = content[4:]
content = content.strip("`\n ")
parsed = json.loads(content)
assert "paris" in str(parsed.get("city", "")).lower(), (
f"city != Paris: {parsed}"
)
print(f"[json] PASS json_object -> {parsed}")
# ── 2. OpenAI image_url (data URI base64) ───────────────────
# 64x64 solid-red PNG. stb_image (used by Studio's image
# normaliser at routes/inference.py:3410) rejects 4x4 or
# smaller PNGs as truncated, so we go up to 64x64 -- still
# tiny in token cost. The assertion is loose: any non-empty
# response from the vision path proves multimodal end-to-end
# wiring; small VL quants are weak at colour identification.
PNG_64X64_RED_B64 = (
"iVBORw0KGgoAAAANSUhEUgAAAEAAAABACAIAAAAlC+aJAAAAYklEQVR4nO3PMQ0AIADAMEAI/k"
"UhBhEcDcmqYJtn7/GzpQNeNaA1oDWgNaA1oDWgNaA1oDWgNaA1oDWgNaA1oDWgNaA1oDWgNaA"
"1oDWgNaA1oDWgNaA1oDWgNaA1oDWgNaA1oDWgNaBdCJ0BmMJ25zMAAAAASUVORK5CYII="
)
data_uri = f"data:image/png;base64,{PNG_64X64_RED_B64}"
client = OpenAI(base_url = f"{BASE}/v1", api_key = KEY)
openai_resp = client.chat.completions.create(
model = "default",
temperature = 0.0,
max_tokens = 80,
seed = SEED,
messages = [{
"role": "user",
"content": [
{"type": "image_url", "image_url": {"url": data_uri}},
{"type": "text", "text": "What colour dominates this image? Reply in one word."},
],
}],
)
openai_text = (openai_resp.choices[0].message.content or "").lower()
print(f"[image/openai] reply: {openai_text!r}")
assert openai_text, "OpenAI image_url returned empty content"
# We do not strictly require 'red' -- some quants of small VL
# models are weak at colour names. Just require a non-empty
# answer; the vision path is the part under test.
print("[image/openai] PASS image_url accepted, non-empty response")
# ── 3. Anthropic source/base64 image ────────────────────────
# Two SDK quirks vs. Studio: base_url must NOT include /v1
# (the SDK appends it itself; otherwise /v1/v1/messages -> 405),
# and Studio's auth is HTTPBearer-only so the SDK's default
# x-api-key header is ignored -- send Authorization: Bearer
# via default_headers.
anthropic = Anthropic(
base_url = BASE,
api_key = "unused",
default_headers = {"Authorization": f"Bearer {KEY}"},
)
a_msg = anthropic.messages.create(
model = "default",
max_tokens = 80,
temperature = 0.0,
extra_body = {"seed": SEED},
messages = [{
"role": "user",
"content": [
{
"type": "image",
"source": {
"type": "base64",
"media_type": "image/png",
"data": PNG_64X64_RED_B64,
},
},
{"type": "text", "text": "Describe this image briefly."},
],
}],
)
a_text = "".join(b.text for b in a_msg.content if getattr(b, "type", None) == "text")
print(f"[image/anthropic] reply: {a_text!r}")
assert a_text, "Anthropic source/base64 returned empty content"
print("[image/anthropic] PASS source/base64 accepted, non-empty response")
PY
- name: Stop Studio
if: always()
run: |
kill "${STUDIO_PID}" 2>/dev/null || true
sleep 2
ss -tln | grep ":${STUDIO_PORT}" || true
- name: Upload logs
# Always upload so green runs are still reviewable.
if: always()
uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
with:
name: json-images-log
path: |
logs/studio.log
logs/install.log
retention-days: 7