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https://github.com/hsnice16/agent-friendly-code

A public dashboard that ranks open-source repos by how friendly they are for AI coding agents — per model.
https://github.com/hsnice16/agent-friendly-code

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A public dashboard that ranks open-source repos by how friendly they are for AI coding agents — per model.

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README

          

# Agent Friendly Code

[![Release](https://img.shields.io/badge/release-0.6.0-blue?style=flat-square)](./lib/changelog.ts)
[![License: MIT](https://img.shields.io/badge/license-MIT-green?style=flat-square)](./LICENSE)
[![Next.js 16](https://img.shields.io/badge/Next.js-16-black?style=flat-square)](https://nextjs.org)
[![Node ≥20.9](https://img.shields.io/badge/node-%E2%89%A520.9-43853d?style=flat-square&logo=node.js&logoColor=white)](https://nodejs.org)
[![Sponsor](https://img.shields.io/badge/sponsor-%E2%9D%A4-db61a2?style=flat-square&logo=githubsponsors&logoColor=white)](https://github.com/sponsors/hsnice16)
[![Agent Friendly](https://www.agentfriendlycode.com/api/badge/github/hsnice16/agent-friendly-code.svg)](https://www.agentfriendlycode.com)

**A public dashboard that ranks open-source repos by how friendly they are for AI coding agents — per model.**

Next.js 16 + SQLite (`better-sqlite3`), styled with Tailwind CSS 4. Spans GitHub, GitLab, and Bitbucket out of the box. Current release: **0.6.0**.

![Agent Friendly Code — leaderboard](./public/demo/light.png)

Dark mode

![Agent Friendly Code — leaderboard (dark theme)](./public/demo/dark.png)

Follows `prefers-color-scheme` automatically — same tokens, different values.

---

## The idea

AI coding agents — Claude Code, Cursor, Devin, GPT-5 Codex, Gemini CLI, Aider, OpenHands, Pi — succeed dramatically more often on some repos than others. The difference is rarely the agent; it's the repo. A codebase with fast tests, a clear `AGENTS.md`, a Makefile, and CI is a massively different environment than one without.

**Goal**: a public leaderboard where anyone can look up a repo and see:

1. How agent-friendly is it overall?
2. How friendly is it for _my_ agent? (Claude Code weights `AGENTS.md` heavily; Devin cares about CI + reproducible envs; Cursor prefers strong types + a good README.)
3. _Why_ does it rank there, and **what would it take to improve for my agent?** — top-3 gaps ranked by score-gain.

Two audiences:

- **Maintainers** — a ranked checklist of what to fix to make their repo friendlier to agents.
- **Agent users** — when picking between forks, packages, or alternatives, agent-friendliness is a real dependency-choice signal.

## Prior art + what we do differently

| Project | What it does | What we do differently |
| ------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Factory.ai Agent Readiness** | Single-tenant scanner: you point it at your repo and get a score with auto-fix PRs. 8 pillars, 5 maturity levels. | **Public + cross-forge + per-model.** Factory rates your own repo in isolation — we rank _across_ repos, on GitHub/GitLab/Bitbucket, and the ranking changes based on which agent you care about. |
| **`kodustech/agent-readiness`** | OSS alternative to Factory — static checks, local scan. | We're a public ranking service, not a local scanner. Scoring logic is similar in spirit; the product is the leaderboard and the per-model lens. |
| **`jpequegn/agent-readiness-score`** | Explicitly "inspired by Factory.ai" — OSS framework to measure codebase readiness. | Same delta as above — single-tenant vs. public + per-model. |
| **`viktor-silakov/ai-ready`** | 39 checks, 7 pillars, 10+ languages. Scanner. | Same delta. |
| **`ambient-code/agentready`** | Assesses git repos against evidence-based attributes. | Same delta. |
| **Cloudflare Agent Readiness** | Rates _websites_ for agent consumption. | Wrong object — we rate code repos. |
| **Fern Agent Score** | Public leaderboard rating _documentation_ sites for AI-readiness. | Closest in shape — public + leaderboard — but scores docs, not code. |
| **Clarvia** | Scoring platform for _MCP servers_ (Agent Experience Optimization). | Adjacent — rates tools, not repos. |
| **SWE-Bench (Verified / Pro), GitTaskBench, FeatureBench, HAL, PR Arena** | Rank _agents_ on a fixed set of repos. | We want the **transpose**: rank repos _per agent_. Our measurement story (once the benchmark harness lands) looks a lot like these, with the axes flipped. |
| **GitHub Trending, ossinsight** | Popularity / activity rankings. | Stars ≠ agent-friendliness. |

**Our differentiators, in one line**: cross-forge, public, **per-model**, and explainable — every score decomposes to signals, and every repo page shows _what to improve next_ for the selected model.

## Honest product concerns

Not pretending the idea is free of risk:

- **Per-model scoring is the hardest part and the easiest to fake.** Per-model rationales are now sourced from each agent's published docs (see `MODELS[].sources` in `lib/scoring/weights.ts`), but the weight values themselves are still pre-benchmark. Real "Claude ranks this higher than GPT-5" requires actually running each agent on each repo. That's `tasks/1.0.0/03-benchmark-harness.md`.
- **Factory.ai is already in this space.** Differentiation has to stay sharp.
- **Public-shaming risk.** Ranking #47,823 without consent invites angry maintainers. Planned via `tasks/0.7.0/01-opt-out-claim-flow.md`.
- **Score gaming.** Once public, people add boilerplate `AGENTS.md` to pass the rubric without being useful. Dynamic (actually-run-an-agent) checks are the counter — see benchmark harness.
- **Freshness.** Scores decay with every push. A 6-hourly GitHub Actions cron rescores the curated set; webhook-driven sub-minute refresh is deferred until the claim flow lands in 0.7.0.

See `/methodology` in the running app for a candid walkthrough of what's measured today and what isn't.

## Security posture (FAQ)

Short answer: **low risk**. The app:

- Only **reads** files after a shallow clone; never executes anything from the cloned tree (no `npm install`, no post-clone hooks).
- Uses `--depth 1 --single-branch` and never clones submodules.
- Runs all SQL via prepared statements.
- Renders through React (auto-escaping); the only `dangerouslySetInnerHTML` use is server-built JSON-LD with `<` escaped to `<`.
- Has no auth and no writable API endpoints — read-only dashboard.

**Operational concerns** for a public launch (not code-level security):

- Disk quotas for the clone workspace.
- Rate limiting the public API.
- Sandbox the cloner in a container (future-proofing against hypothetical git CVEs).

Auth and per-maintainer controls land with the opt-out / claim flow in v0.7.0.

## Quickstart

```bash
bun install
bun run prepare-hooks # once — installs lefthook pre-commit (Biome + tsc + test + file-length)
bun run seed # score the curated set across GH / GL / BB + cache popular package aliases
bun run dev # http://localhost:3000
```

Score a single repo:

```bash
bun run score https://github.com/vercel/next.js
bun run score https://gitlab.com/gitlab-org/cli
bun run score https://bitbucket.org/snakeyaml/snakeyaml
bun run score /path/to/local/checkout
```

Optional: `GITHUB_TOKEN` / `GITLAB_TOKEN` in env to raise API rate limits.

Run the unit tests with `bun run test` (uses `node --test` + `tsx`; requires Node ≥20.9.0).

## Versioning

`lib/version.ts` and `package.json` carry the current release number (currently **0.6.0**). Bumps happen only when we actually cut a release — never when merging intermediate work. The version pill in the header surfaces the number directly; `/changelog` lists what each release shipped.

## Stack & rationale

| Choice | Why | When we'd revisit |
| ---------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------- |
| **Next.js 16 (App Router)** | Future features (filters, charts, auth, diff views) are React's territory. File-based routing + API routes replace hand-rolled HTTP cleanly. | Unlikely. The core scorer is stack-agnostic, only `app/` depends on this. |
| **Node runtime (with `tsx` for CLI scripts)** | Matches Vercel's serverless runtime — no Bun-only imports in prod. Bun still works locally as a fast package manager. | Unlikely — only if the deployment target changes. |
| **Tailwind CSS 4** | Zero-config via `@theme` tokens, no `tailwind.config.*` needed. Tight bundle output. | Would only leave for something with a stronger design-system story. |
| **`better-sqlite3`** | Single file, inspectable, zero ops overhead. Node-native so Vercel's serverless runtime can load it directly. | Postgres when concurrent writers / access control arrive (`tasks/1.0.0/01-postgres-migration.md`). |
| **Server-first; client islands where needed** | Cheap, fast, SEO-friendly. Client components only where interactivity demands — mobile nav, search, selects, copy, back-to-top. | When client islands grow past presentational interactivity → reach for client state mgmt. |
| **Shallow git clones** (`--depth 1 --single-branch`) | Bandwidth + speed. Current signals don't need history. | If commit-history ever enters scoring → host APIs or `--filter=blob:none` partial clones. |
| **Exact-pinned deps** | Deterministic scoring across environments. | Never. |
| **One file per signal** | Each signal is a small, independent concern — keeps `git log` and code review focused. | When we bundle signals into dynamic checks (then the unit becomes the bundle). |

## Why do we clone at all (instead of host APIs)?

- Static signals need to read **file contents** (AGENTS.md length, `pyproject.toml [tool.X]` sections, package.json scripts count) — not just existence.
- One clone is faster than N API calls for content-heavy scoring, and respects rate limits.
- Any real version of this dashboard needs dynamic signals (run tests, run an agent). Those absolutely need code on disk.

## Layout

```text
app/ Next.js App Router — pages + API + SEO
layout.tsx root layout, root metadata (OG + Twitter cards)
page.tsx leaderboard
repo/[id]/ repo detail (generateMetadata + per-repo OG image)
methodology/ how scoring works today
roadmap/ upcoming versions (from lib/roadmap.ts)
changelog/ what's shipped (from lib/changelog.ts)
about/ independent project, no vendor affiliation (footer-linked, E-E-A-T)
privacy/ privacy policy (footer-linked, AdSense/GDPR/CCPA)
terms/ terms of use (footer-linked)
action/ PR-diff GitHub Action explainer + install snippet
skill/ agent-skill explainer + install command
package/ registry → repo lookup (form + per-package state pages)
api/ /repos, /repo/[id], /score, /badge///, /package//
robots.ts /robots.txt — allows "/", blocks "/api/"
sitemap.ts /sitemap.xml — static routes + every repo
llms.txt/ markdown manifest for LLM crawlers
globals.css Tailwind import + @theme tokens
components/ React components (Tailwind-styled)
lib/
scoring/ signals, weights, scorer — pure, no I/O outside the cloned tree
clients/ git clone, host API, npm/PyPI/Cargo registries
constants/ thresholds, host labels, sort keys
utils/ format + score-tier helpers, SVG badge renderer, package-request URL builder
db.ts better-sqlite3 schema + queries (all SQL lives here)
package-lookup.ts shared registry → repo lookup (used by /api/package + /package page)
version.ts app + sibling URLs, install snippets (ACTION_USES, SKILL_INSTALL_CMD), SIBLING_VERSION pin
changelog.ts / roadmap.ts / skill-content.ts
scripts/ CLI entries run via `tsx` (Node) — score, seed, init-db
tests/ `node --test` unit tests — scorer, signals, URL parser, formatters
tasks/ Per-version task breakdown (agent-readable)
public/ Static assets — demo/ screenshots used by the README + OG image
.claude/ settings.json, hooks/ (Stop guard), skills/
data/ rank.db (committed — shipped as a build artifact; rescoring runs locally)
AGENTS.md Agent instructions (source of truth)
CONTRIBUTING.md Human-contributor guide — PR workflow, review bar
CLAUDE.md Pointer → AGENTS.md
LICENSE MIT
```

## Companion: PR-diff GitHub Action

[`hsnice16/agent-friendly-action`](https://github.com/hsnice16/agent-friendly-action) runs the same scorer inside your CI and posts a per-PR score-delta comment — _"this PR drops your Claude Code score by 4.1 points because it removed CI config."_ Opt-in via an `AGENTS_BADGE_TOKEN` secret; falls through silently when unset. Each repo detail page on the dashboard ships a copy-paste workflow snippet under "Catch score regressions on every PR".

## Companion: agent skill

[`hsnice16/agent-friendly-skill`](https://github.com/hsnice16/agent-friendly-skill) is a portable agent skill installable in one command — `npx skills add hsnice16/agent-friendly-skill#v0` — that scores the user's current repo locally and recommends a model. Profiles the same 8 agents this dashboard does (Claude Code, Cursor, Devin, GPT-5 Codex, Gemini CLI, Aider, OpenHands, Pi); installs into any [`vercel-labs/skills`](https://github.com/vercel-labs/skills)-compatible host (Cline, Copilot, Continue, Roo Code, …) and produces identical output regardless of which host invokes it — scoring is score-driven, not host-driven. Same self-contained property as the action: vendored scorer, no service dependency, works offline. The dashboard's [`/skill`](https://www.agentfriendlycode.com/skill) page hosts the install command, the score → model mapping, and optional `SessionStart` hook snippets for Claude Code and Codex.

## Public API

Read-only JSON endpoints for external integrators (skills, hooks, browser overlays, third-party tools):

- `GET /api/score?host=&repo=/` — look up an indexed repo by host + owner/name. Returns `{ repo, signals, modelScores }` on 200; `{ error: "not_indexed" }` with status 404 when the repo isn't in our DB. The natural lookup endpoint for any tool that has a repo URL but not our internal id.
- `GET /api/repos` — full leaderboard (id, owner, name, host, stars, overall_score, per-model scores).
- `GET /api/repo/` — per-repo detail (signals, model scores, top improvements). Requires the internal id; use `/api/score` first if you only have host + owner/name.
- `GET /api/badge///.svg` — embeddable SVG badge. `?model=` for per-model variants.
- `GET /api/package//` — resolve npm / PyPI / Cargo package → source-repo score (or `unresolved` when the registry doesn't expose a repo URL).

Neither the action nor the agent skill calls these at runtime — both vendor the scorer and run locally. The endpoints exist so any third party can build on top of the dashboard without a network round-trip becoming a critical-path dependency.

## Roadmap (high-level)

See `/roadmap` in the running app or the per-version `tasks/` folders for the full picture.

Versions are sequenced cheap-first so the highest-impact small additions don't get gated on heavy infra:

- **0.7.0 — maintainer ownership + at-scale discovery**: OAuth opt-out / claim flow for maintainers + at-scale package overlay (per-registry leaderboards + userscript that renders the badge inline on npmjs.com / PyPI / crates.io).
- **1.0.0 — production cut**: Postgres migration for concurrent writers + auto-discovered crawl (target 10k repos) + benchmark harness that derives per-model weights from measured agent success. From here on, breaking API changes require a MAJOR bump.

## Defensibility

The score isn't defensible. The **evaluation harness + the cross-forge dataset + the maintainer network** are. Open-source the harness, publish the weights, keep the data + dashboard + badge network as the product.

## License

MIT — see [LICENSE](./LICENSE).

## Contributing

See [CONTRIBUTING.md](./CONTRIBUTING.md) for setup, branch/commit style, the PR description template, and the changelog discipline.

## Sponsor

If this project is useful to you, consider sponsoring its development: [github.com/sponsors/hsnice16](https://github.com/sponsors/hsnice16).