Agent Friendly Code
← back to leaderboard

apple/swiftGitHub

https://github.com/apple/swift
Stars:
69.9k
Default branch:
main
Last scored:
4h ago
Overall

Strengths

  • CONTRIBUTING guide
  • License file
  • Linter / formatter config
  • README
  • Test suite

Gaps

  • AGENTS.md / CLAUDE.md
  • CI configuration
  • Dependency manifest
  • Reproducible dev env
  • Pre-commit / git hooks

Suggestions to improve for a specific model

  1. 1
    Type configuration
    Add a type config (tsconfig.json for JS/TS, mypy.ini or pyrightconfig.json for Python). Rust/Go are typed by default.
    +14.1 pts
  2. 2
    Dependency manifest
    Commit a proper manifest (package.json, pyproject.toml, Cargo.toml, go.mod, etc.) plus a lockfile.
    +11.3 pts
  3. 3
    AGENTS.md / CLAUDE.md
    Add an AGENTS.md covering project goals, layout, setup commands, and conventions. Aim for 800+ chars of real guidance (not boilerplate).
    +8.5 pts

Per-model scores

Claude Code
Weights AGENTS.md and tests heavily — Claude Code leans on an instructions file and a fast feedback loop.
40.8
Cursor
Weights type config and a detailed README highly — Cursor's inline edits benefit from static types and skim-readable docs.
44.8
Devin
Weights CI and reproducible envs highly — Devin runs in a sandboxed VM and needs end-to-end automation.
37.8
GPT-5 Codex
Balanced profile as a reference point.
41.1

Signal breakdown

AGENTS.md / CLAUDE.md· 0% pass
No agent instructions file found
CI configuration· 0% pass
No CI config found
CONTRIBUTING guide· 100% pass
Guide present
CONTRIBUTING.md
Dependency manifest· 0% pass
No dependency manifest found
Reproducible dev env· 0% pass
No Makefile / devcontainer / Docker / equivalent found
License file· 100% pass
License present
LICENSE.txt
Linter / formatter config· 100% pass
Config detected
.flake8
Pre-commit / git hooks· 0% pass
No pre-commit / husky / lefthook found
README· 100% pass
README detailed (5773 chars)
README.md
Manageable size· 20% pass
10001+ files — very large
Test suite· 100% pass
Found /test
test
Type configuration· 0% pass
No type config found