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Review and improve Rust projects with deep checks for ownership, lifetimes, async/tokio, serde, sqlx, axum, FFI, macros, unsafe code, and testing patterns — including git-diff auditing, false-positive verification, and project scaffolding with linting and CI.
npx claudepluginhub existential-birds/beagle --plugin beagle-rustReviews axum web framework code for routing patterns, extractor usage, middleware, state management, and error handling. Use when reviewing Rust code that uses axum, tower, or hyper for HTTP services. Covers axum 0.7+ patterns including State, Path, Query, Json extractors.
Reviews Rust FFI code for type safety, memory layout compatibility, string handling, callback patterns, and unsafe boundary correctness. Use when reviewing extern blocks, #[repr(C)] types, bindgen output, or code calling C/C++ libraries.
Reviews Rust macro code for hygiene issues, fragment misuse, compile-time impact, and procedural macro patterns. Use when reviewing macro_rules! definitions, procedural macros, derive macros, or attribute macros.
Comprehensive Rust code review with optional parallel agents
Mandatory verification steps for all code reviews to reduce false positives. Load this skill before reporting ANY code review findings.
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Sign in to claimBased on adoption, maintenance, documentation, and repository signals. Not a security audit or endorsement.
Comprehensive Rust development assistant with meta-question routing, coding guidelines, version queries, and ecosystem support
Rust development skill with strict coding standards, FAIL FAST error handling, and build/review agents
Rust development - cargo, clippy, testing, memory safety
Shared code review workflows, verification protocol, git commands, and feedback handling. Recommended as a base for all beagle plugins.
Comprehensive Clippy skills for Rust linting and code quality with lint configuration, categories, and custom lint development.
Comprehensive skill pack with 66 specialized skills for full-stack developers: 12 language experts (Python, TypeScript, Go, Rust, C++, Swift, Kotlin, C#, PHP, Java, SQL, JavaScript), 10 backend frameworks, 6 frontend/mobile, plus infrastructure, DevOps, security, and testing. Features progressive disclosure architecture for 50% faster loading.
React, React Flow, React Router, shadcn/ui, Tailwind v4, Vitest, and Zustand code review. Pairs with beagle-core for full workflow.
Architecture analysis, brainstorming, ADR generation, LLM-as-judge comparison, and spec gap resolution.
Pydantic AI, LangGraph, DeepAgents, and Vercel AI SDK skills for building and reviewing AI applications.
Python, FastAPI, SQLAlchemy, PostgreSQL, and pytest code review. Pairs with beagle-core for full workflow.
Swift, SwiftUI, SwiftData, iOS animation design/implementation/review, and framework code review (HealthKit, CloudKit, WidgetKit, watchOS, App Intents). Pairs with beagle-core for full workflow.

Image: NASA, Public Domain. Source
Beagle is a Claude Code plugin marketplace with 145 skills across code review, documentation, testing, architectural analysis, and git workflows. Use it to review before you push, detect AI-generated artifacts, draft and improve docs, generate test plans, and analyze codebases — across Python, Go, Rust, Elixir, React, Remix v2, iOS/Swift, and AI frameworks.
Used with Amelia for agent-based workflows and Daydream for automated review-fix-test loops.
Prerequisites:
run-test-plan skill (optional)# Add the marketplace
claude plugin marketplace add https://github.com/existential-birds/beagle
# Install the plugins you need
claude plugin install beagle-core@existential-birds
claude plugin install beagle-python@existential-birds
claude plugin install beagle-react@existential-birds
Verify installation by opening a new Claude Code session and running /beagle-core:commit-push — if the skill loads, the plugin is active.
To update:
claude plugin marketplace update existential-birds && claude plugin update <plugin-name>
Troubleshooting:
~/.claude/plugins/known_marketplaces.json and restart Claude Code.claude plugin marketplace update existential-birds to refresh the marketplace.Use the skills CLI to install beagle skills for other AI agents:
npx skills add existential-birds/beagle
This downloads the skills and configures them for your agent.
Codex users: Link each plugin into ~/.agents/skills/ — see .codex/INSTALL.md for setup instructions.
| Plugin | Skills | Category |
|---|---|---|
| beagle-core | 20 | Shared workflows, verification, git |
| beagle-python | 7 | Python, FastAPI, SQLAlchemy, pytest |
| beagle-go | 13 | Go, BubbleTea, Wish SSH, Prometheus |
| beagle-elixir | 11 | Elixir, Phoenix, LiveView, ExUnit, ExDoc |
| beagle-ios | 16 | Swift, SwiftUI, SwiftData, iOS frameworks |
| beagle-react | 16 | React, React Flow, shadcn/ui, Tailwind |
| beagle-remix-v2 | 12 | Remix v2 route modules, loaders/actions, forms, sessions |
| beagle-rust | 12 | Rust, tokio, axum, sqlx, serde |
| beagle-ai | 13 | Pydantic AI, LangGraph, DeepAgents |
| beagle-docs | 10 | Documentation quality, AI writing detection (Diataxis) |
| beagle-analysis | 13 | Brainstorming, ADRs, strategy, LLM-as-judge, spec gap resolution, TDD plan writing |
| beagle-testing | 2 | Test plan generation and execution |
| Total | 145 | — |
These are the canonical skill entry points for Beagle.
| Skill | Description |
|---|---|
review-plan <path> | Review implementation plans |
review-llm-artifacts | Detect LLM coding artifacts |
verify-llm-artifacts | Confirm or reject review findings before deletes |
fix-llm-artifacts | Fix detected artifacts |
commit-push | Commit and push changes |
create-pr | Create PR with template |
gen-release-notes <tag> | Generate release notes |
receive-feedback <path> | Process review feedback |
fetch-pr-feedback | Fetch bot comments from PR |
respond-pr-feedback | Reply to bot comments |
subagent-prompt | Hand off the current session as an orchestrator-plus-subagents prompt for a fresh session |
skill-builder | Create new skills |
prompt-improver | Optimize prompts |
| Skill | Plugin | Description |
|---|---|---|
review-python | beagle-python | Python/FastAPI code review |
review-frontend | beagle-react | React/TypeScript code review |
review-go | beagle-go | Go code review |
review-tui | beagle-go | BubbleTea TUI code review |
review-ios | beagle-ios | iOS/SwiftUI code review |
review-elixir | beagle-elixir | Elixir/Phoenix code review |
review-rust | beagle-rust | Rust/tokio/axum code review |
review-remix-v2 | beagle-remix-v2 | Remix v2 code review (loaders, actions, forms, sessions) |