Validate Code

Run the project's own quality gates — format/lint fix, type check, tests — whatever this project defines. Detect the toolchain; never assume npm.

Workflow

1. Detect the project's commands. Prefer a task the project already defines over a raw tool call:
   • Node → package.json scripts (lint:fix/lint-fix, lint, typecheck/tsc, test)
   • Python → pyproject.toml / tox.ini / Makefile (ruff --fix/black, ruff/flake8, mypy, pytest)
   • Go → gofmt -w, go vet, go build ./..., go test ./...
   • Rust → cargo fmt, cargo clippy, cargo check, cargo test
   • else → read the Makefile / CI config for the equivalent targets
2. Format + lint fix (the fix variant). These rewrite files in place and exit 0 silently — capture what changed right after (git status --short / git diff --stat) and remember it for the report. The user is about to commit; they need to know their tree was modified.
3. Lint + types (check variants).
4. Tests.
5. Report: an Auto-fixed section listing files the fix step changed (or "nothing auto-fixed"), then overall PASS or FAIL with file:line error references.

Rules