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crystal-lang/crystalGitHub

https://github.com/crystal-lang/crystal
Stars:
20.4k
Language:
Crystal
Default branch:
master
Last scored:
18h ago
Overall

At a glance

Rank
#296 of 371
Checks passed
7 of 16
Full list below
Best set up for
Devin
Score 68.8
Needs most work for
Cursor
Biggest fix: Cursor rules (.cursor/rules) (+12.0 pts)

What it has

What it's missing

What to fix first

  1. 1
    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).
    +13.2 pts
  2. 2
    Linter / formatter config
    Configure a linter/formatter (ESLint+Prettier, Biome, Ruff, rustfmt+clippy, golangci-lint) and commit the config.
    +7.9 pts
  3. 3
    Type configuration
    Add a type config (tsconfig.json for JS/TS, mypy.ini or pyrightconfig.json for Python). Rust/Go/JVM/Scala/Swift/C#/OCaml/Haskell/Zig are typed by default.
    +7.9 pts

Score for each AI agent

Each agent looks for different things in a repo, based on its own docs. Under each score are the three checks it cares about most.

Devin
68.8
OpenHands
63.0
Claude Code
62.5
GPT-5 Codex
62.0
Kimi CLI
60.6
Pi
57.0
Gemini CLI
55.1
Aider
53.5
Cursor
50.6

All checks

AGENTS.md / CLAUDE.md· 0% pass
No agent instructions file found
.aider.conf.yml· 0% pass
No .aider.conf.yml at repo root
CI configuration· 100% pass
22 GitHub Actions workflow(s)
.github/workflows
CONTRIBUTING guide· 100% pass
Guide present
CONTRIBUTING.md
Cursor rules (.cursor/rules)· 0% pass
No .cursor/rules/*.mdc or .cursorrules
Dependency manifest· 100% pass
Manifest present
shard.yml
Reproducible dev env· 100% pass
2 env artifacts (Makefile, shell.nix)
Makefile
GEMINI.md· 0% pass
No GEMINI.md at repo root
License file· 100% pass
License present
LICENSE
Linter / formatter config· 0% pass
No linter/formatter config found
.openhands/setup.sh· 0% pass
No .openhands/setup.sh
Pre-commit / git hooks· 0% pass
No pre-commit / husky / lefthook found
README· 100% pass
README detailed (4009 chars)
README.md
Manageable size· 50% pass
4503 files — large
Test suite· 100% pass
Found /spec
spec
Type configuration· 0% pass
No type config found

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Agent friendly score for github/crystal-lang/crystal
[![Agent Friendly](https://agentfriendlycode.com/api/badge/github/crystal-lang/crystal.svg)](https://agentfriendlycode.com/repo/github/crystal-lang/crystal)

Check the score on every pull request

Add this file to your repo. On each pull request, it posts one comment showing how the score changed and why. It runs in your own CI, with no outside server involved.

# .github/workflows/agent-friendly.yml
name: Agent-friendly score diff

on:
  pull_request:
    branches: [master]

permissions:
  contents: read
  pull-requests: write

jobs:
  score-diff:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v7
        with:
          fetch-depth: 0
      - uses: hsnice16/agent-friendly-action@v0
        with:
          agents-badge-token: ${{ secrets.AGENTS_BADGE_TOKEN }}

Add AGENTS_BADGE_TOKENto the repo's secrets to turn the comment on. Without it, the action does nothing. Where do I add it?