Developer Tools & Repos Agent Skills for Claude Code

Core Data for iOS persistence. Data models, fetch requests, background contexts, and SwiftData migration.

Core Swift language patterns, optionals, closures, protocols, generics, and modern Swift features.

Integrates Alchemy blockchain APIs using an API key.

AI-powered pull request review against spec acceptance criteria.

Build React chat interfaces with Vercel AI SDK v5/v6.

Analyze unfamiliar codebases systematically to produce subsystem catalog entries - emphasizes strict contract compliance and confidence…

Master Material Design 3 and Jetpack Compose patterns for building native Android apps.

Redirect to claude-model-inference for Messages API streaming,

Comprehensive guide for skill development based on Anthropic's official best practices - use for complex skills requiring detailed structure

Create or evaluate an architecture decision record (ADR).

CTO-level project status from git and codebase state.

Validate OpenAPI, Swagger, and GraphQL schemas match backend implementation.

API Design knowledge base. Provides REST constraints, Richardson Maturity Model, HTTP semantics, content negotiation, and GraphQL/gRPC…

Enforces best practices for REST API response structures to prevent field misalignment, type ambiguity, and inconsistent error handling.

Generates API documentation for PHP projects.

Create API handoff documentation for frontend developers.

API versioning strategies, breaking change detection, deprecation lifecycle, and migration guides

Guide for building React applications with Apollo Client 4.x.

Guide for using Apollo MCP Server to connect AI agents with GraphQL APIs.

App lifecycle patterns - process death handling, SavedStateHandle, ViewModel restoration, lifecycle-aware components, and background task…

Use when preparing ANY app for App Store submission - enforces pre-flight checklist, rejection prevention, privacy compliance, and…