Skill

lint-and-validate

Enforces linting, type checking, and security audits after every code change in Node.js/TypeScript and Python projects. Ensures error-free code before completing tasks.

Node

Typescript

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Tool Access

This skill uses the workspace's default tool permissions.

Preview

> **MANDATORY:** Run appropriate validation tools after EVERY code change. Do not finish a task until the code is error-free.

Supporting Assets

scripts/lint_runner.pyscripts/type_coverage.py

SKILL.md

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Stars36383

Forks5961

Last CommitApr 13, 2026

Used By4 plugins

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Lint and Validate Skill

MANDATORY: Run appropriate validation tools after EVERY code change. Do not finish a task until the code is error-free.

Procedures by Ecosystem

Node.js / TypeScript

Lint/Fix: npm run lint or npx eslint "path" --fix
Types: npx tsc --noEmit
Security: npm audit --audit-level=high

Python

Linter (Ruff): ruff check "path" --fix (Fast & Modern)
Security (Bandit): bandit -r "path" -ll
Types (MyPy): mypy "path"

The Quality Loop

Write/Edit Code
Run Audit: npm run lint && npx tsc --noEmit
Analyze Report: Check the "FINAL AUDIT REPORT" section.
Fix & Repeat: Submitting code with "FINAL AUDIT" failures is NOT allowed.

Error Handling

If lint fails: Fix the style or syntax issues immediately.
If tsc fails: Correct type mismatches before proceeding.
If no tool is configured: Check the project root for .eslintrc, tsconfig.json, pyproject.toml and suggest creating one.

Strict Rule: No code should be committed or reported as "done" without passing these checks.

Scripts

Script	Purpose	Command
`scripts/lint_runner.py`	Unified lint check	`python scripts/lint_runner.py <project_path>`
`scripts/type_coverage.py`	Type coverage analysis	`python scripts/type_coverage.py <project_path>`

When to Use

This skill is applicable to execute the workflow or actions described in the overview.

Limitations

Use this skill only when the task clearly matches the scope described above.
Do not treat the output as a substitute for environment-specific validation, testing, or expert review.
Stop and ask for clarification if required inputs, permissions, safety boundaries, or success criteria are missing.