Lint And Validate

1---
2name: lint-and-validate
3description: "Automatic quality control, linting, and static analysis procedures. Use after every code modification to ensure syntax correctness and project standards. Triggers onKeywords: lint, format, check, validate, types, static analysis."
4allowed-tools: Read, Glob, Grep, Bash
5---
6 
7# Lint and Validate Skill
8 
9> **MANDATORY:** Run appropriate validation tools after EVERY code change. Do not finish a task until the code is error-free.
10 
11### Procedures by Ecosystem
12 
13#### Node.js / TypeScript
141. **Lint/Fix:** `npm run lint` or `npx eslint "path" --fix`
152. **Types:** `npx tsc --noEmit`
163. **Security:** `npm audit --audit-level=high`
17 
18#### Python
191. **Linter (Ruff):** `ruff check "path" --fix` (Fast & Modern)
202. **Security (Bandit):** `bandit -r "path" -ll`
213. **Types (MyPy):** `mypy "path"`
22 
23## The Quality Loop
241. **Write/Edit Code**
252. **Run Audit:** `npm run lint && npx tsc --noEmit`
263. **Analyze Report:** Check the "FINAL AUDIT REPORT" section.
274. **Fix & Repeat:** Submitting code with "FINAL AUDIT" failures is NOT allowed.
28 
29## Error Handling
30- If `lint` fails: Fix the style or syntax issues immediately.
31- If `tsc` fails: Correct type mismatches before proceeding.
32- If no tool is configured: Check the project root for `.eslintrc`, `tsconfig.json`, `pyproject.toml` and suggest creating one.
33 
34---
35**Strict Rule:** No code should be committed or reported as "done" without passing these checks.
36 
37---
38 
39## Scripts
40 
41| Script | Purpose | Command |
42|--------|---------|---------|
43| `scripts/lint_runner.py` | Unified lint check | `python scripts/lint_runner.py <project_path>` |
44| `scripts/type_coverage.py` | Type coverage analysis | `python scripts/type_coverage.py <project_path>` |
45 
46