beagle
Agent Skills marketplace: framework-aware skills for code review, documentation, test-plan generation, AI-writing detection, architectural analysis, and git workflows — for Python, Go, Rust, Elixir, React, Remix, and iOS/Swift. Works with Claude Code, Codex, and any agent that supports Agent Skills.
Install / Use
npx skills add existential-birds/beagleInstalls into whichever agent you are using.
Other
Other agent config
Quality Score
Category
AutomationSupported Platforms
Our assessment of beagle
beagle scores 80/100 on our quality scale, 2518th of 2,877 Automation skills we index.
Its Other is 3.9 KB long, split into 6 sections with 3 code examples: a solid amount of guidance for an agent.
It has 85 GitHub stars, a meaningful sign that others use it.
Maintenance, license and trust
- The repository was last updated about 2 months ago, so beagle is actively maintained.
- Our last check on 2026-10-21 found the source still online.
- It is released under the Apache-2.0 license, a permissive license that allows use, modification and commercial use with attribution.
- Its trust signals score 100/100, with no cautions. These come from repository metadata, not a code audit — read the skill file before letting an agent act on it.
Safety scan
No issues foundOur scan of the whole file found no instruction hijacking, hidden characters, credential access, data exfiltration or destructive commands. An AI review of the same text found nothing harmful.
AI review by kimi-k2.7-code on 2026-09-24. Automated pattern scan on 2026-09-24. It catches known dangerous patterns, not every risk — read a skill before letting an agent act on it.
beagle compared with similar skills
All 4 of these similar skills score higher than beagle; compare them before choosing.
| Skill | Score | Stars | Updated | Format |
|---|---|---|---|---|
| beagle (this skill)by existential-birds | 80 | 85 | 51d ago | Other |
| Agent-Reachby Panniantong | 100 | 109.5k | 1d ago | CLAUDE.md |
| headroomby headroomlabs-ai | 100 | 79.0k | today | CLAUDE.md |
| Scraplingby D4Vinci | 100 | 98.7k | today | MCP Server |
| crawl4aiby unclecode | 100 | 87.0k | 2d ago | MCP Server |
Frequently asked questions
- How do I install beagle?
- Run
npx skills add existential-birds/beagle. The install tabs above show the steps for each supported agent. - Which AI agents does beagle work with?
- It is written for Claude Code and OpenAI Codex, as a Other file. Other agents that read the same format can often use it too.
- Is beagle safe to use?
- Our scan of the whole file found no instruction hijacking, hidden characters, credential access, data exfiltration or destructive commands. An AI review of the same text found nothing harmful. It is Apache-2.0-licensed and scores 100/100 on trust signals. Skills are instructions an agent will follow, so read the file before installing it and do not approve commands you do not understand.
- Is beagle still maintained?
- The repository was last updated about 2 months ago, so beagle is actively maintained.
Skill content
View source on GitHubbeagle
Image: NASA, Public Domain. Source
Beagle is an Agent Skills marketplace: framework-aware code review, documentation, testing, architectural analysis, and git workflows for any compatible coding agent. Skills cover Python, Go, Rust, Elixir, React, Remix v2, and iOS/Swift.
Install for any agent: npx skills add existential-birds/beagle. Then your agent loads the right skill automatically, or you run one by name (for example review-python).
Pairs with Amelia for agent-based workflows and Daydream for automated review-fix-test loops.
Installation
Prerequisites:
- A coding agent that supports Agent Skills
- agent-browser for the
run-test-planskill (optional)
Any coding agent
Install with the skills CLI:
npx skills add existential-birds/beagle
This downloads the skills and configures them for your agent. Codex users: see .codex/INSTALL.md and docs/README.codex.md.
Claude Code
claude plugin marketplace add https://github.com/existential-birds/beagle
claude plugin install beagle-core@existential-birds
Install additional plugins as needed (for example beagle-python@existential-birds). Update with:
claude plugin marketplace update existential-birds && claude plugin update <plugin-name>
If a marketplace file is reported missing, remove stale entries from ~/.claude/plugins/known_marketplaces.json and restart.
Plugins
Each plugin's README lists its skills. For every skill in one place, see the full catalog.
| Plugin | Coverage | |--------|----------| | beagle-core | Shared workflows, verification, git, skill tooling | | beagle-python | Python, FastAPI, SQLAlchemy, PostgreSQL, pytest | | beagle-go | Go, BubbleTea, Wish SSH, Prometheus | | beagle-elixir | Elixir, Phoenix, LiveView, ExUnit, ExDoc | | beagle-ios | Swift, SwiftUI, SwiftData, iOS frameworks | | beagle-react | React, React Flow, shadcn/ui, Tailwind, Remix v2 | | beagle-rust | Rust, tokio, axum, sqlx, serde | | beagle-docs | Documentation quality, AI-writing detection (Diataxis) | | beagle-analysis | Brainstorming, ADRs, strategy, LLM-as-judge, TDD planning | | beagle-testing | Test plan generation and execution |
Key skills
Your agent discovers every skill automatically; these are the headline ones, grouped by task. The full catalog lists them all.
Code review — review-python, review-frontend, review-remix-v2 (beagle-react); review-go, review-tui (beagle-go); review-rust, review-elixir, review-ios.
Git & feedback — commit-push, create-pr, gen-release-notes, fetch-pr-feedback, respond-pr-feedback, receive-feedback.
LLM artifacts — review-llm-artifacts, verify-llm-artifacts, fix-llm-artifacts.
Docs — improve-doc, draft-docs, ensure-docs, review-ai-writing, humanize-beagle.
Analysis & planning — review-plan, write-adr, brainstorm-beagle, write-plan, quick-plan, llm-judge, strategy-interview, prfaq-beagle, web-research.
Testing — gen-test-plan, run-test-plan.
Skill tooling — skill-builder, review-skill.
Related Skills
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headroom
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Scrapling
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crawl4ai
87.0kOfficial Crawl4AI Cloud: a hosted web scraping, extraction, and search API for AI agents. Free API key, 1,000 credits a month, no card. Fully open source: this repo is the Apache-2.0 crawler that powers it, and you can self-host it.
Languages
Trust signals
From repository metadata: license, adoption, age and documentation. Not a code audit — see the Safety scan above for what the skill file itself contains.