Agent rules and skills from open source.
Read real AGENTS.md and CLAUDE.md files. See what they do.
- Projects
- 100
- Skills
- 1,214
- GitHub stars
- 5.5M
22 projects of 100
Star snapshot · September 2026
opencode
anomalyco/opencode
A code-heavy guide to simple abstractions, session invariants, helper-based flow, and wrong-versus-right examples.
TypeScript207.1k stars2 skillsAGENTS.md161 lines
Transformers
huggingface/transformers
A short guide to contribution coordination, generated models, converter directives, modular sources, and required checks.
Python166.3k stars1 skill.ai/AGENTS.md40 lines
Codex
openai/codex
A dense Rust guide covering style, module boundaries, reviews, snapshot tests, app-server APIs, change scope, and model context.
Rust123.8k stars17 skillsAGENTS.md320 lines
Supabase
supabase/supabase
A concise root guide to the directory map, core commands, conventions, public contributions, local instructions, and skills.
TypeScript109.1k stars23 skillsAGENTS.md75 lines
Pi
earendil-works/pi
A shared-checkout guide to session safety, coordination, model catalogs, isolated tests, interactive checks, and releases.
TypeScript105.5k stars1 skillAGENTS.md124 lines
PyTorch
pytorch/pytorch
A contribution guide to native builds, tests, CUDA, ghstack, CI traps, and project-specific Python and Git commands.
Python103.1k stars18 skillsCLAUDE.md343 lines
Grafana
grafana/grafana
A Go and TypeScript guide to local instructions, test skills, generators, environment differences, deployments, and compatibility.
TypeScript76.8k stars3 skillsAGENTS.md172 lines
Twenty
twentyhq/twenty
A compact CRM guide to package conventions, recurring mistakes, tests, migrations, branch output, and Nx cache traps.
TypeScript56.9k stars18 skillsCLAUDE.md50 lines
Ruff
astral-sh/ruff
A Rust workspace guide to environment traps, Markdown tests, ty-specific work, security reviews, and focused references.
Rust49.6k stars4 skillsAGENTS.md211 lines
Gradio
gradio-app/gradio
A Python and Svelte guide to issue ownership, AI disclosure, human review, release notes, builds, and tests.
Python43.6k stars4 skillsAGENTS.md72 lines
DuckDB
duckdb/duckdb
Pairs deprecated vector loops with replacement code and explains where query timeouts cannot intervene.
C++41.5k stars0 skillsAGENTS.md493 lines
Omarchy
omacom/omarchy
A routing guide to seven workflows, audience-specific docs, and project helpers that replace raw shell commands.
Shell40.9k stars2 skillsAGENTS.md133 lines
Skills CLI
vercel-labs/skills
A CLI guide to command ownership, updates, lockfiles, GitHub fallbacks, tree-hash comparisons, tests, and agent metadata.
TypeScript31.8k stars1 skillAGENTS.md169 lines
Biome
biomejs/biome
A concise guide to source-backed analysis, generators, contributor messaging, testing, reviews, changesets, and docs.
Rust25.9k stars11 skillsAGENTS.md82 lines
Oxc
oxc-project/oxc
A Rust workspace guide to crate-specific tests, generators, conformance suites, Node bindings, and contribution responsibilities.
Rust22.8k stars4 skillsAGENTS.md329 lines
Vitest
vitest-dev/vitest
A validation guide to source checks, bundled output, test helpers, CI coverage, stale builds, and package exceptions.
TypeScript17.1k stars1 skillAGENTS.md240 lines
Effect
Effect-TS/effect
A task-routed guide to focused checks, generated output, protected indexes, type tests, JSDoc, and examples.
TypeScript16.1k stars12 skills.agents/AGENTS.md46 lines
Anarlog
fastrepl/anarlog
Separate TypeScript and Rust guides to component checks, native release evidence, generated files, and database constraints.
TypeScript9.3k stars22 skillsAGENTS.md135 lines
hunk
modem-dev/hunk
An architecture guide to the shared review model, renderer boundaries, interface-specific tests, and three core project terms.
TypeScript9.3k stars4 skillsAGENTS.md224 lines
Cloudflare Agents
cloudflare/agents
Layered guides for packages, examples, tutorials, and design records, with separate runtime, browser, type, and release workflows.
TypeScript5.6k stars7 skillsAGENTS.md196 lines
Railpack
railwayapp/railpack
A build-system guide tracing detection through containers, with mise tasks, generated files, fixtures, and runtime checks.
Go1.2k stars1 skillCLAUDE.md99 lines
vlt
vltpkg/vltpkg
A workspace guide to Cursor rules, ordered verification, docs-build traps, and skill evaluation with baselines and trigger tests.
TypeScript552 stars1 skillAGENTS.md113 lines
See the techniques these projects share.
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