unsloth/studio/frontend/AGENTS.md
Daniel Han 3e1469a55a
Studio (#4237)
* Rebuild Studio branch on top of main

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

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

* Fix security and code quality issues for Studio PR #4237

- Validate models_dir query param against allowed directory roots
  to prevent path traversal in /api/models/local endpoint
- Replace string startswith() with Path.is_relative_to() for
  frontend path traversal check in serve_frontend
- Sanitize SSE error messages to not leak exception details to
  clients (4 locations in inference.py)
- Bind port-discovery socket to 127.0.0.1 instead of all interfaces
  in llama_cpp backend
- Import datasets_root and resolve_output_dir in embedding training
  function to fix NameError and use managed output directory
- Remove stale .gitignore entries for package-lock.json and test
  directories so tests can be tracked in version control
- Add venv-reexecution logic to ui CLI command matching the studio
  command behavior

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

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

* Move models_dir path validation before try/except block

The HTTPException(403) was inside the try/except Exception handler,
so it would be caught and re-raised as a 500. Moving the validation
before the try block ensures the 403 is returned directly and also
makes the control flow clearer for static analysis (path is validated
before any filesystem operations).

* Use os.path.realpath + startswith for models_dir validation

CodeQL py/path-injection does not recognize Path.is_relative_to() as
a sanitizer. Switched to os.path.realpath + str.startswith which is
a recognized sanitizer pattern in CodeQL's taint analysis. The
startswith check uses root_str + os.sep to prevent prefix collisions
(e.g. /app/models_evil matching /app/models).

* Never pass user input to Path constructor in models_dir validation

CodeQL traces taint through Path(resolved) even after a startswith
barrier guard. Fix: the user-supplied models_dir is only used as a
string for comparison against allowed roots. The Path object passed
to _scan_models_dir comes from the trusted allowed_roots list, not
from user input. This fully breaks the taint chain.

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
2026-03-12 03:36:19 -07:00

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2.1 KiB
Markdown

<!-- SPDX-License-Identifier: AGPL-3.0-only -->
<!-- Copyright 2026-present the Unsloth AI Inc. team. All rights reserved. See /studio/LICENSE.AGPL-3.0 -->
# Repository Guidelines
## Project Structure & Module Organization
- `src/` is app code; entry is `src/main.tsx`, global styles in `src/index.css`.
- `src/app/` holds app shell and routing; `src/features/` is feature slices w/ public `index.ts` exports.
- Shared UI lives in `src/components/` (shadcn in `src/components/ui/`).
- Shared logic in `src/hooks/`, `src/stores/`, `src/utils/`, `src/lib/`, and types in `src/types/`.
- Static assets: `src/assets/` and `public/`.
- `test/` is a Python harness for payload validation and preview; not a JS test suite.
## Build, Test, and Development Commands
- `bun run dev`: start Vite dev server.
- `bun run build`: typecheck + build to `dist/`.
- `bun run preview`: serve the production build locally.
- `bun run lint`: ESLint checks for TS/React.
- `bun run typecheck`: `tsc` no-emit verification.
- `bun run biome:check` / `bun run biome:fix`: format + lint w/ Biome.
- Optional harness: `python test/scripts/validate_payload.py test/data/ui_payload.json`.
## Coding Style & Naming Conventions
- TypeScript + React, 2-space indent (Biome).
- Prefer explicit, compact code; avoid heavy abstraction.
- Use path alias `@/` for app imports.
- Feature boundaries enforced: import from `@/features/<name>` only, not deep paths.
- Components in `PascalCase`, hooks in `useCamelCase`, files in `kebab-case` or `camelCase` per local convention.
## Testing Guidelines
- No frontend test runner configured yet; add one if needed.
- `test/` is for API payload validation and preview flows; add samples as `test/data/ui_payload_*.json`.
## Commit & Pull Request Guidelines
- Commit history shows short, imperative messages; optional prefix like `refactor:`; keep it terse.
- PRs should include: clear summary, linked issue (if any), and UI screenshots/gifs for visual changes.
- Call out new deps, config, or required env changes in the PR body.
## Agent Notes
- Keep changes minimal, focused, and easy to review.