Skill History MCP server

skill-history

Track and visualize agent skill download history from ClawHub. An embeddable chart for READMEs — star-history, but for agent skills.

skill-history.com · built by Pineapple AI

How it works

skill-history.com tracks daily download counts for all 54,000+ skills on ClawHub. Every skill gets a chart page and an embeddable SVG:

• Chart page — skill-history.com/{handle}/{slug}
• SVG embed — skill-history.com/chart/{handle}/{slug}.svg
• Compact badge — skill-history.com/badge/{handle}/{slug}.svg

Your {handle} is your GitHub username (ClawHub uses GitHub OAuth), and {slug} is your skill's slug on ClawHub.

Add to your README

[![Download History](https://skill-history.com/chart/YOUR_HANDLE/YOUR_SLUG.svg)](https://skill-history.com/YOUR_HANDLE/YOUR_SLUG)

Or use the link generator at skill-history.com.

Architecture

• Cloudflare Workers + Hono — serves the site, chart SVGs, and scheduled sweeps
• Cloudflare D1 (SQLite) — stores skills and daily snapshots
• Edge cache — GET responses are stored in Cloudflare's cache via the Cache API (caches.default), so D1 only sees cache misses; weekly blog data is materialised in D1 once per week
• d3-shape — smooth monotone curves (same algorithm as star-history)
• Data source — ClawHub public API, sweeps every 2 hours

API

All skill pages return JSON when requested with Accept: application/json:

curl -H "Accept: application/json" https://skill-history.com/gavinlinasd/self-preserve

Full OpenAPI spec at skill-history.com/api/openapi.json.

For AI agents: skill-history.com/llms.txt.

Local development

npm install

# Authenticate with Cloudflare
wrangler login

# Create D1 database, copy database_id into wrangler.jsonc
wrangler d1 create skill-history

# Apply schema to local dev DB
npm run db:migrate:local

# Run locally
npm run dev

Roadmap

• [x] Daily download tracking for all ClawHub skills
• [x] Embeddable SVG chart + compact badge
• [x] Landing page with link generator
• [x] Agent discoverability (llms.txt, OpenAPI)
• [ ] Smooth d3-powered chart rendering (full axis upgrade)
• [ ] Multi-source tracking (GitHub stars, non-ClawHub installs)
• [ ] Comparison charts (overlay multiple skills)
• [ ] Weekly "fastest growing skills" reports
• [ ] MCP server for agent tool access

Have an idea? Open an issue or submit a PR — we'd love your input.

Contributing

This is a brand new project and we're actively shaping it based on what skill authors actually want. Contributions welcome:

• Feature requests — open an issue describing what you'd like to see
• Bug reports — if a chart looks wrong or a skill is missing, let us know
• Pull requests — code, docs, or design improvements are all welcome
• Data sources — ideas for tracking skills beyond ClawHub (GitHub stars, other registries)

License

MIT