A skill is a portable skill.md file — YAML frontmatter plus a markdown body — that you drop into Claude Code, Cursor, Windsurf, Copilot, or any other AI tool that reads project instructions. Every entry here downloads in the format you need, and carries a community-verified compatibility matrix showing which tools it actually works with.
Browse by category below, or contribute a skill you've built.
Draft Tightener
Cut 20 percent of a draft while preserving the argument, using sentence-level surgery instead of paragraph deletion.
Tone Translator
Rewrite the same content across four target tones — formal, casual, authoritative, friendly — while preserving every fact and callout, for multi-channel posting from a single source.
Fact-and-Source Annotator
Annotate every factual claim in a draft with a source URL and confidence level, blocking publication until each claim is cited or marked opinion.
Editorial Style Matcher
Rewrite a draft to match a target publication's house style (sentence length, voice, diction) without changing meaning.
