Agent Friendly Code

Which public repos are easiest for GPT-5 Codex to work in?

Repos from GitHub, GitLab, and Bitbucket, ranked by their GPT-5 Codex score rather than the average across every agent. gitlab-org/cli leads with 97.7.

The methodology lists the weight GPT-5 Codex gives each check and the documentation it comes from.

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 7 of 12 for GPT-5 Codex
RankRepoStarsScoreExternal link
193prisma/ormGitHub47.7k ★
73.6
open
194immerjs/immerGitHub29k ★
73.6
open
195apache/paimonGitHub3.4k ★
73.5
open
196godotengine/godotGitHub118.3k ★
73.3
open
197BurntSushi/ripgrepGitHub69.1k ★
73.3
open
198etcd-io/etcdGitHub52.4k ★
73.3
open
199nats-io/nats-serverGitHub20.9k ★
73.3
open
200encode/httpxGitHub15.6k ★
73.3
open
201Kludex/uvicornGitHub11k ★
73.3
open
202apple/swift-argument-parserGitHub3.8k ★
73.3
open
203ggml-org/whisper.cppGitHub54.3k ★
73.2
open
204medusajs/medusaGitHub36.7k ★
73.1
open
205localsend/localsendGitHub94.1k ★
72.8
open
206JuliaLang/juliaGitHub49.2k ★
72.7
open
207api-platform/coreGitHub2.6k ★
72.7
open
208vercel/aiGitHub27.3k ★
72.3
open
20911ty/buildawesomeGitHub20k ★
72.3
open
210unclecode/crawl4aiGitHub85.4k ★
72.0
open
211starship/starshipGitHub60.2k ★
72.0
open
212rails/railsGitHub58.8k ★
72.0
open
213Alamofire/AlamofireGitHub42.4k ★
72.0
open
214apache/seatunnelGitHub9.7k ★
72.0
open
215apple/swift-nioGitHub8.5k ★
72.0
open
216tqdm/tqdmGitHub31.4k ★
71.9
open
217clap-rs/clapGitHub16.8k ★
71.9
open
218tauri-apps/tauriGitHub111.8k ★
71.3
open
219makeplane/planeGitHub60.7k ★
71.3
open
220jgm/pandocGitHub46.7k ★
71.3
open
221explosion/spaCyGitHub34k ★
71.3
open
222influxdata/influxdbGitHub31.8k ★
71.3
open
223coollabsio/coolifyGitHub62.9k ★
71.2
open
224filamentphp/filamentGitHub32.2k ★
70.9
open

Tracking 371 repos · last updated