Frames a markdown-authoring repo as red-green-refactor with the validator as the test gate, and gives an explicit 'Definition of Done — run before every commit' block of exact commands. The Gotchas section (generated README tables, description length limit) captures the tribal knowledge that usually lives only in reviewers' heads.
By pproenca
How to install
Skill (folder)A Skill is a folder with a SKILL.md file that gives Claude extra instructions for a task.
Claude Code (project or global):
# per-project mkdir -p .claude/skills/dot-skills-validator-first-definition-of # ...or for all projects mkdir -p ~/.claude/skills/dot-skills-validator-first-definition-of # copy SKILL.md and any supporting files into that folder
Claude.ai / Claude Desktop:
Customize → Skills → “+” → Browse skills → Install. (Installed skills are view-only; download a copy to customise.)
Claude auto-detects skills in that folder — no restart needed.
Exact steps can vary per project — always double-check the original source. New to this? Read the full install guide →
Source
More in Security
View all →PDF Tools
Read, extract, merge, split, rotate, watermark, encrypt, and OCR PDF files — including filling PDF forms and extracting tables
Anthropic Skills
Official collection of Anthropic-built skills for Claude Code. Bundles document skills (pdf, pptx, xlsx, docx), memory maintenance (consolidate-memory), skill authoring (skill-creator), and scheduling — everything you need for day-to-day productivity.
Google Drive Server
Search, read, and manage files in Google Drive with OAuth authentication
Code Review
Multi-agent code review system with confidence-based filtering. Provides comprehensive PR analysis across security, performance, maintainability, and correctness dimensions with intelligent prioritization of high-impact issues.