# Code Quality > Apply a minimal, repeatable quality checklist to changes (correctness, security, maintainability, tests) and suggest repo-aligned checks without inventing tooling. Use when this capability is needed. - Skill: `tomevault-io/code-quality-21` (Agent Skill, multi-file: 2 files) - Install (CLI): `npx skillmds@latest add tomevault-io/code-quality-21` - Raw SKILL.md: https://api.skillmd.com/api/skills/tomevault-io/code-quality-21/raw - Safety review: pending (external: skill-scanner PASS, skillspector PASS) - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: AI & ML - Author: tomevault-io (https://skillmd.com/u/tomevault-io) - Updated: 2026-09-17 - Page: https://skillmd.com/skills/tomevault-io/code-quality-21 --- # code-quality Purpose: Keep quality high with a short, consistent checklist and repo-aligned verification steps. ## Inputs - PROJECT.md (repo conventions, how to run, quality gates) - Active PR or changed files (if available) - Existing tooling config (pyproject.toml, go.mod, package.json, CI workflows, etc.) ## Rules - Do not invent tooling. Prefer repo-provided commands (PROJECT.md, scripts, CI). - Keep suggestions minimal and actionable. - If a check cannot be run, propose it as a follow-up (do not assume it passed). ## Checklist (prioritized) 1) Correctness - Edge cases and error handling - Input validation and safe defaults 2) Security - Secrets and credentials handling - AuthN/AuthZ assumptions - Unsafe deserialization / injection risks (where relevant) 3) Maintainability - Naming, structure, single-responsibility - Avoid unnecessary complexity 4) Tests - New behavior covered by tests (or clear reason why not) - Verification command exists and is documented 5) Performance (only if relevant) - Obvious hot paths, N+1 style issues, excessive I/O ## Suggested checks (only if repo defines them) - Tests: use PROJECT.md verification or existing scripts - Lint/format/typecheck/build: only if repo has an entrypoint for them (Makefile/Taskfile/package scripts/CI) ## Output format - Critical issues (must fix) - Major issues - Minor/nits - Suggested checks (commands, if available) - Summary (3 bullets) --- > Converted and distributed by [TomeVault](https://tomevault.io/claim/jpiedrafita) — claim your Tome and manage your conversions.