Is Code Simplification free to use?

Yes — run it free in the browser playground (no API key needed for the sponsored trial, or bring any provider key), or install it into Claude Code, Cursor, ChatGPT and more via npx pm-claude-skills. MIT-licensed and open source.

Code Simplification

Q: How do I know the Code Simplification output is good?

The skill verifies itself against its own quality checks: Full verification ran before and after — identical behaviour, evidenced; Thinly-tested code got pinning tests before simplification; Every removal states the future it forecloses — "none" must be argued, not assumed; Strange code was history-checked before deletion (Chesterton's fence).

🔵 Stable🕐 updated 2026-07-03 🔷 SkillSpec L3 pm-method

Simplify code that works — remove speculative abstraction, dead flexibility, and needless indirection while keeping behaviour identical and verified. Use after a feature lands ('now simplify it'), when AI-generated code arrives over-engineered, when a file has grown hard to follow, or as the cleanup pass before review. Produces a smaller, flatter version with identical behaviour, plus a ledger of what was removed and why it was safe. For finding bugs use code-review-checklist / ai-code-review — this skill assumes it works and makes it simple.

▶ Run it free — no key needed 📝 Grade your existing draft View SKILL.md ↗

✅ The bar it holds itself to

Every skill in this library self-verifies — these are this skill's own quality checks, straight from its definition.

✓Full verification ran before and after — identical behaviour, evidenced

✓Thinly-tested code got pinning tests before simplification

✓Every removal states the future it forecloses — "none" must be argued, not assumed

✓Strange code was history-checked before deletion (Chesterton's fence)

✓The result is simpler for a READER, not just shorter

⚠️ What it refuses to do

Do not simplify and change behaviour in one pass — the moment behaviour shifts, this became a rewrite without a spec

Do not delete weirdness without checking why it's weird — some of it is a production incident's scar tissue

Do not confuse terse with simple — code golf raises the reading tax this skill exists to cut

Do not remove flexibility that's actually on the roadmap — YAGNI applies to imagined futures, not planned ones

Do not skip the ledger — invisible simplification is indistinguishable from unexplained deletion in review

Install

npx pm-claude-skills add --agent claude   # or codex · cursor · gemini · hermes
# or one-line MCP (every skill, any client):
claude mcp add pm-skills -- npx -y pm-claude-skills-mcp

Related skills

🔌 Embed this skill

Drop this on your blog, docs, or site — it renders a "Run this skill" card:

<div data-pm-skill="code-simplification"></div>
<script src="https://mohitagw15856.github.io/pm-claude-skills/embed.js" async></script>

💬 Discussion

Code Simplification is one of 625 open-source professional AI agent skills — all SkillSpec L3. Try them all in the browser · ⭐ Star on GitHub · Browse the full catalog