bevyengine/bevy

GitHub
https://github.com/bevyengine/bevy

A refreshingly simple data-driven game engine built in Rust

  • bevy
  • game-development
  • game-engine
  • gamedev
  • open-source
  • rust
Stars:
49.5k
Language:
Rust
Default branch:
main
Last scored:
Overall

At a glance

Rank
#278 of 401
#35 of 45 Rust repos
Checks passed
7 of 17
Full list below
Best set up for
Aider
Score 64.8
Needs most work for
OpenHands
Biggest fix: Reproducible dev env (+10.0 pts)

What it has

What it's missing

What to fix first

Pick an AI agent

Showing fixes for Claude Code

  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
    Reproducible dev env
    Add a Makefile or devcontainer or Dockerfile so the agent can set up the project in one command.
    +11.8 pts
  3. 3
    Pre-commit / git hooks
    Set up pre-commit (.pre-commit-config.yaml), husky, or lefthook to run format+lint on every commit.
    +5.3 pts

Score for each AI agent

Each agent weighs the checks by its own docs. Under each score are its top three. How each agent is scored →

Aider
#201 of 401
64.8
  • ✗.aider.conf.yml
  • ✓Linter / formatter config
  • ✓Test suite
Codex
#296 of 401
62.7
  • ✗AGENTS.md / CLAUDE.md
  • ✓README
  • ✓Test suite
Claude Code
#301 of 401
62.5
  • ✗AGENTS.md / CLAUDE.md
  • ✓Test suite
  • ✗Reproducible dev env
Pi
#269 of 401
62.0
  • ✗AGENTS.md / CLAUDE.md
  • ✓Test suite
  • ✓Linter / formatter config
Kimi Code CLI
#295 of 401
60.0
  • ✗AGENTS.md / CLAUDE.md
  • ✓Test suite
  • ✓Dependency manifest
Cursor
#243 of 401
59.8
  • ✗Cursor rules (.cursor/rules)
  • ✓README
  • ✓Type configuration
Devin
#308 of 401
59.5
  • ✗Reproducible dev env
  • ✓Dependency manifest
  • ✓Test suite
Gemini CLI
#266 of 401
59.2
  • ✗GEMINI.md
  • ✓README
  • ✓Test suite
OpenHands
#303 of 401
57.5
  • ✓CI configuration
  • ✓Dependency manifest
  • ✗Reproducible dev env

Does bevyengine/bevy have agent instructions?

An AGENTS.md (or CLAUDE.md) at the root tells AI coding agents how to build, test and work in the repo. A few agents also read a file of their own.

AGENTS.md / CLAUDE.md
None at the root (no AGENTS.md, CLAUDE.md, AGENT.md, .claude/CLAUDE.md or .claude/AGENTS.md)
Agent-specific files
None: no GEMINI.md, .cursor/rules, .openhands/setup.sh, .aider.conf.yml or .agents/skills
Repos that have one
24 of 45 Rust repos · 221 of 401 repos on the leaderboard · See examples →
Get a starter AGENTS.md

From the files the checks found. Fill in the commands, then commit it at the root.

# AGENTS.md

Guidance for AI coding agents working in bevyengine/bevy. A refreshingly simple data-driven game engine built in Rust. Written mainly in Rust.

## Where things are

- Dependencies are declared in `Cargo.toml`.
- Tests live in `tests`.
- Lint and format rules are configured in `rustfmt.toml`.
- CI is defined in `.github/workflows`; read it for the exact install, lint and test steps.
- Follow the conventions in `CONTRIBUTING.md`.

## Commands

<!-- Fill in the exact commands CI runs. -->
- Install: TODO
- Test: TODO
- Lint: TODO

All 17 checks · 7 passed

No .agents/skills/<name>/SKILL.md
No agent instructions file found
.aider.conf.yml· 0% pass
No .aider.conf.yml at repo root
CI configuration· 100% pass
14 GitHub Actions workflows
CONTRIBUTING guide· 100% pass
Guide present
No .cursor/rules/*.mdc or .cursorrules
Manifest present
No Makefile / devcontainer / Docker / equivalent found
GEMINI.md· 0% pass
No GEMINI.md at repo root
License file· 0% pass
No LICENSE/COPYING file
Config detected
No .openhands/setup.sh
No pre-commit / husky / lefthook found
README· 100% pass
README detailed (7,649 characters)
Manageable size· 50% pass
3457 files — large
Test suite· 100% pass
Found /tests
Type configuration· 100% pass
Typed language (Rust)

How bevyengine/bevy compares

vs leaderboard average
5.9 pts below
Average 66.8
vs Rust average
9.7 pts below
Average 70.6
Stars among Rust repos
#18 of 45

Missing here, and how many repos have it

  • License file · passed by 92% of leaderboard repos, 60% of Rust repos
  • Pre-commit / git hooks · passed by 29% of leaderboard repos, 20% of Rust repos
  • Reproducible dev env · passed by 22% of leaderboard repos, 33% of Rust repos

One fix for the most agents: AGENTS.md / CLAUDE.md would raise the score for all 9 agents, by up to 13.3 points.

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