clap-rs/clap
GitHubA full featured, fast Command Line Argument Parser for Rust
- argument-parser
- argument-parsing
- command-line
- command-line-parser
- parsed-arguments
- positional-arguments
- rust
- subcommands
- Stars:
- 16.8k
- Language:
- Rust
- Default branch:
- main
- Last scored:
At a glance
- Rank
- #232 of 401
- #33 of 45 Rust repos
- Checks passed
- 7 of 17
- Full list below
- Best set up for
- Claude Code
- Score 70.1
- Needs most work for
- Cursor
- Biggest fix: Cursor rules (.cursor/rules) (+11.5 pts)
What it has
What it's missing
What to fix first
Showing fixes for Claude Code
- 1AGENTS.md / CLAUDE.mdAdd an AGENTS.md covering project goals, layout, setup commands, and conventions. Aim for 800+ chars of real guidance (not boilerplate).+13.2 pts
- 2Linter / formatter configConfigure a linter/formatter (ESLint+Prettier, Biome, Ruff, rustfmt+clippy, golangci-lint) and commit the config.+7.9 pts
- 3License fileAdd a LICENSE (or COPYING) file — MIT, Apache-2.0, BSD, GPL, etc. — at the repo root.+3.9 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 →
Does clap-rs/clap 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 clap-rs/clap. A full featured, fast Command Line Argument Parser for Rust. Written mainly in Rust.
## Where things are
- Dependencies are declared in `Cargo.toml`.
- Tests live in `tests`.
- CI is defined in `.github/workflows`; read it for the exact install, lint and test steps.
- Commit hooks are set up in `.pre-commit-config.yaml`; don't skip them.
- Common tasks are targets in `Makefile`.
- 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
How clap-rs/clap compares
- vs leaderboard average
- 1.4 pts below
- Average 66.8
- vs Rust average
- 5.2 pts below
- Average 70.6
- Stars among Rust repos
- #36 of 45
Missing here, and how many repos have it
- License file · passed by 92% of leaderboard repos, 60% of Rust repos
- Linter / formatter config · passed by 65% of leaderboard repos, 80% of Rust repos
- Skills (.agents/skills) · passed by 17% of leaderboard repos, 20% of Rust repos
Passes checks most repos miss
- Pre-commit / git hooks · only 29% of repos pass it
One fix for the most agents: Linter / formatter config would raise the score for all 9 agents, by up to 14.1 points.
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Same topics, any language
Repos tagged with the same GitHub topics, most shared first.
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