Agent Friendly Code

Which public repos are friendliest to an AI coding agent?

Ranked per model across GitHub, GitLab, and Bitbucket — because agents aren't interchangeable.

Looking up a dependency? Check any npm / PyPI / Cargo package by name.

GPT-5 Codex — Reads AGENTS.md before doing any work per OpenAI's Codex docs. Hierarchical (per-directory) AGENTS.md and AGENTS.override.md are first-class.
Leaderboard — page 8 of 12 for GPT-5 Codex
RankRepoStarsScoreExternal link
225shadcn-ui/uiGitHub121.9k ★
69.6
open
226remix-run/react-routerGitHub56.6k ★
69.6
open
227fastify/fastifyGitHub37k ★
69.6
open
228phoenixframework/phoenixGitHub23.1k ★
69.6
open
229symfony/aiGitHub1.2k ★
69.5
open
230kubernetes/kubernetesGitHub124.9k ★
69.2
open
231nikic/PHP-ParserGitHub17.5k ★
69.2
open
232ghostfolio/ghostfolioGitHub9.2k ★
69.2
open
233babashka/babashkaGitHub4.6k ★
69.2
open
234millionco/react-doctorGitHub14.6k ★
69.1
open
235openai/codexGitHub114.1k ★
68.8
open
236cockroachdb/cockroachGitHub32.4k ★
68.8
open
237apache/druidGitHub14k ★
68.8
open
238elixir-lang/elixirGitHub26.6k ★
68.7
open
239go-chi/chiGitHub22.7k ★
68.7
open
240apache/beamGitHub8.6k ★
68.7
open
241Anuken/MindustryGitHub28.7k ★
68.5
open
242libeigen/eigenGitLab1.2k ★
68.5
open
243Aider-AI/aiderGitHub48.4k ★
68.0
open
244go-gorm/gormGitHub39.9k ★
68.0
open
245elastic/elasticsearchGitHub77.9k ★
67.9
open
246date-fns/date-fnsGitHub36.6k ★
67.9
open
247trinodb/trinoGitHub13.2k ★
67.9
open
248StarRocks/starrocksGitHub12k ★
67.9
open
249protocolbuffers/protobufGitHub71.8k ★
66.8
open
250JetBrains/kotlinGitHub53.3k ★
66.8
open
251fastlane/fastlaneGitHub42k ★
66.8
open
252haskell/cabalGitHub1.7k ★
66.5
open
253tailwindlabs/tailwindcssGitHub97.3k ★
66.4
open
254drizzle-team/drizzle-ormGitHub35.6k ★
66.4
open
255eslint/eslintGitHub27.5k ★
66.3
open
256hashicorp/terraformGitHub49.5k ★
66.1
open

Tracking 353 repos · last updated