Developer Tools & Repos Agent Skills for Claude Code

Validation agent that validates plan tech choices against current best practices

MANDATORY: Run before git push --force, rebase, or reset to verify safety

Vehicle simulation skill for wheel colliders, suspension, and aerodynamics.

React and Next.js performance optimization guidelines from Vercel Engineering.

Pre-commit auto-formatters can sweep concurrent agents' unstaged work into your commit when stash/restore mishandles a mixed working tree.

Meta-skill for creating and managing Claude Code skills

Spring Boot architecture patterns, REST API design, layered services, data access, caching, async processing, and logging.

Self-contained app generator — invoke this skill directly, do not decompose into sub-steps.

Self-contained parallel generator — invoke directly, do not decompose.

Reconstructs physical scenes and calculates environmental data through a specialized internal monologue persona inspired by Disco Elysium.

Walk through PR changes from the user's perspective.

Automates the creation and modification of Warcraft III map objects while ensuring ID uniqueness and template compliance within the…

Automatically discover WebAssembly skills when working with WebAssembly, WASM, WASI, wasm-bindgen, Rust to WASM, wasm-pack, or browser…

Use when building web services. Keywords: web server, HTTP, REST API, GraphQL, WebSocket, axum, actix, warp, rocket, tower, hyper…

Get started with WebF development - setup WebF Go, create a React/Vue/Svelte project with Vite, and load your first app.

Designs reliable webhook systems with proper delivery guarantees, retry logic, signature verification, and idempotent processing for…

Guides backend system design with clean architecture, layered service/repository patterns, caching strategies, and resilience practices…

Designs ethical engagement systems for wellness apps — onboarding, habit loops, streaks, re-engagement, and push strategy that serve user…

Expert guidance on Swift best practices, patterns, and implementation.

AI Stardew Valley portrait maker — create a Stardew Valley game-style character portrait

Implement, review, or improve WidgetKit widgets and controls.