How do I install the Lint And Validate skill?

Run npx skillmds@latest add jantoniofc/lint-and-validate in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Lint And Validate safe to use?

This skill has not completed SkillMD's automated safety review yet. Independent scanners report: SkillSpector: PASS, Skill Scanner: PASS. Capability flags: executes scripts. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Lint And Validate?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Lint And Validate free to use?

Yes. Installing skills from SkillMD is free. This skill is licensed under MIT.

Who published Lint And Validate?

JantonioFC (@jantoniofc) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Lint And Validate by jantoniofc — Agent Skill

Name: Lint And Validate
Rating: 4.2 (5 reviews)
Author: JantonioFC

Lint And Validate

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.

JantonioFC Updated Sep 8, 2026 6 repo stars

File contents

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

Automatic quality control, linting, and static analysis procedures. Use after every code modification to ensure syntax correctness and project standards.

Covers: Lint and Validate Skill, Procedures by Ecosystem, The Quality Loop, Error Handling, Scripts.

---name: lint-and-validatedescription: 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.license: MIT---# 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 / TypeScript1. **Lint/Fix:** `npm run lint` or `npx eslint "path" --fix`2. **Types:** `npx tsc --noEmit`3. **Security:** `npm audit --audit-level=high`#### Python1. **Linter (Ruff):** `ruff check "path" --fix` (Fast & Modern)2. **Security (Bandit):** `bandit -r "path" -ll`3. **Types (MyPy):** `mypy "path"`## The Quality Loop1. **Write/Edit Code**2. **Run Audit:** `npm run lint && npx tsc --noEmit`3. **Analyze Report:** Check the "FINAL AUDIT REPORT" section.4. **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 UseAutomatic quality control, linting, and static analysis procedures. Use after every code modification to ensure syntax correctness and project standards.Covers: Lint and Validate Skill, Procedures by Ecosystem, The Quality Loop, Error Handling, Scripts.

Frequently asked questions