Developer Tools & Repos Agent Skills for Claude Code

Finds what's rotting in a repo and returns a prioritized diagnosis — dead code first, then god files / hotspots / hardcoded paths / stale…

Create, run, and publish single-file C# programs without project files.

Finds and ranks callers that could move from services/llm-gateway to PostHog/ai-gateway.

Fish 4.9.x on this machine — the login shell: house style, language, builtins, config layout, startup cost, and verified caveats.

Scans all TypeScript/types in a PR or branch diff for soft types (`any`, unnecessary `null`/`undefined`, optional fields that are…

C++ coding standards based on the C++ Core Guidelines (isocpp.github.io).

Use when asked to design iOS or Android mobile app screens, create mobile UI, spec mobile flows, or produce screen designs for a native app.

Write and review Kotlin event-processing code using kotlinx.coroutines Flow operators instead of hand-rolled state machines, and structure…

This skill provides general Flutter/Dart development guidance - implementing features, fixing bugs, managing pubspec dependencies and…

The repo front-door for a Flutter/Dart app — the cross-cutting house rules (feature-first layered MVVM, immutable state with a single…

Enforces Flutter runtime performance — const subtrees, minimal rebuild scope via ref.watch(select), lazy ListView/GridView builders and…

Build production-grade Flutter apps with Firebase or custom API backends.

Generate and integrate playable 2D game maps with demand-driven or coherent-foundation terrain Tilemaps, complete building/prop objects…

Use when creating or processing production-oriented 2D game sprites, animation sheets, transparent PNG frames, characters, creatures…

Generate, redraw, inpaint, continue, validate, and deliver explicitly requested game sound effects and ambience with a locally installed…

Use when existing, MiniMax Hailuo, Jimeng, optional local ComfyUI MiniMax H3 video must become a validated 2D Sprite animation.

Enforces Form + GlobalKey<FormState> with TextFormField whose sync validator returns a localized String? (never a hardcoded literal)…

Use when the user wants to infer HTTP contracts and endpoint documentation from a React or TypeScript frontend instead of relying on a…

Connect a frontend application (React, Next.js, Vue, Svelte, etc.) to an Encore.ts backend.

Architect large or state-heavy Langfuse frontend features.

Enables AI agents to create complete web applications with file system operations, code execution, template sandboxes, and live preview…