Agent Friendly Code
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vercel/turborepoGitHub

https://github.com/vercel/turborepo
Stars:
30.3k
Default branch:
main
Last scored:
6h ago
Overall

Strengths

  • AGENTS.md / CLAUDE.md
  • CI configuration
  • CONTRIBUTING guide
  • Dependency manifest
  • License file

Gaps

  • No missing signals — nice.

Suggestions to improve for a specific model

  1. 1
    Manageable size
    If possible, split into smaller modules or carve out a focused entry path. Document where to start in AGENTS.md.
    +5.3 pts
  2. 2
    Test suite
    Add a tests/ (or test/, __tests__/, spec/) directory with runnable tests. Document how to run them in AGENTS.md.
    +3.9 pts
  3. 3
    Reproducible dev env
    Add a Makefile or devcontainer or Dockerfile so the agent can set up the project in one command.
    +3.6 pts

Per-model scores

Claude Code
Weights AGENTS.md and tests heavily — Claude Code leans on an instructions file and a fast feedback loop.
87.2
Cursor
Weights type config and a detailed README highly — Cursor's inline edits benefit from static types and skim-readable docs.
90.4
Devin
Weights CI and reproducible envs highly — Devin runs in a sandboxed VM and needs end-to-end automation.
86.9
GPT-5 Codex
Balanced profile as a reference point.
88.4
Gemini CLI
Weights long-form README and strict type configs — Gemini's long context favors docs-heavy codebases that spell out contracts.
88.7
Aider
Weights tests and linter highest — Aider runs both per-edit as its feedback loop, so a green bar translates directly into successful commits.
88.3
OpenHands
Weights reproducible dev-env and CI highest — OpenHands operates from a sandboxed container, so a working Dockerfile / Makefile is near-mandatory.
86.9
Pi
Weights AGENTS.md heavily and rewards a fast test/lint loop — Pi's minimal terminal harness reads AGENTS.md explicitly and defers sandboxing to user-installed extensions.
88.0

Alternatives

Same-language repos scored for Claude Code. Heuristic v1 (same language + same host); cross-language matches are refined in v0.5.0.

Signal breakdown

AGENTS.md / CLAUDE.md· 100% pass
Substantive (1766 chars)
AGENTS.md
CI configuration· 100% pass
12 GitHub Actions workflow(s)
.github/workflows
CONTRIBUTING guide· 100% pass
Guide present
CONTRIBUTING.md
Dependency manifest· 100% pass
Manifest present
package.json
Reproducible dev env· 70% pass
Has .devcontainer/devcontainer.json
.devcontainer/devcontainer.json
License file· 100% pass
License present
LICENSE
Linter / formatter config· 100% pass
Config detected
.rustfmt.toml
Pre-commit / git hooks· 100% pass
Hook framework configured
.husky
README· 100% pass
README detailed (2586 chars)
README.md
Manageable size· 20% pass
5561+ files — very large
Test suite· 70% pass
Test files detected (crates/turborepo/tests/absolute_path_error_test.rs)
crates/turborepo/tests/absolute_path_error_test.rs
Type configuration· 100% pass
Type config present
tsconfig.json

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