backend▌

Orchestrate end-to-end feature development from requirements to production deployment:

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When this skill does NOT apply: For concurrent access to data structures (mutexes, atomic operations), see go-concurrency. For defensive copying at API boundaries, see go-defensive. For pre-sizing capacity for performance, see go-performance.

Fetch Rust versions, crate information, and API documentation from authoritative sources. \n \n Supports queries about Rust release features, crate versions, and standard library documentation via dedicated agent routing \n Operates in two modes: agent-based (when agent files available) for background task execution, or inline mode using actionbook selectors and browser automation \n Covers crate info from lib.rs and crates.io, Rust changelogs from releases.rs, std library docs from doc.rust-lan

Comprehensive REST API design standards and best practices for Spring Boot applications. \n \n Covers resource-based URL design, HTTP method conventions, status codes, DTOs, validation, and error handling with global exception strategies \n Includes pagination, filtering, sorting, security headers, CORS policies, and HATEOAS implementation patterns \n Provides constructor injection, immutable DTO patterns, transaction management, and logging best practices with code examples \n Enforces API vers

Expert patterns for Algolia search implementation, indexing strategies, and React InstantSearch integration. \n \n React InstantSearch with hooks (useSearchBox, useHits, useRefinementList, usePagination) for type-ahead search and faceted filtering in modern React applications \n Next.js SSR support via react-instantsearch-nextjs, compatible with both Pages Router and App Router, with URL synchronization and dynamic rendering configuration \n Three indexing strategies: full reindexing, full recor

Create, update, and manage Google Calendar events with availability checking and scheduling. \n \n Supports core event operations: create, update, delete, and list events across specified time ranges with automatic pagination \n Includes free/busy availability checking across multiple calendars to find open time slots for scheduling \n OAuth 2.0 authentication with keyring-based credential storage; declined invitations are filtered by default but can be included on demand \n Commands use RFC3339

Comprehensive security middleware for REST APIs covering authentication, rate limiting, input validation, and attack prevention. \n \n Implements multiple security layers: helmet for HTTP headers, rate limiting, CORS configuration, input sanitization, and XSS/HPP protection \n Supports Node.js/Express and Python FastAPI with reference implementations for each framework \n Includes JWT-based authentication, input validation with sanitization, and security event logging \n Provides best practices

Generate structured API routes, middleware, and documentation for Cloudflare Workers projects using Hono. \n \n Creates resource-grouped route files with Zod validation, typed bindings, and error handling \n Includes auth middleware templates, CORS setup, and end-to-end RPC type safety patterns \n Generates API_ENDPOINTS.md documentation with endpoint signatures, auth requirements, and response schemas \n Designed to run after project initialization via cloudflare-worker-builder or vite-flare-st

Contract testing verifies that APIs honor their contracts between consumers and providers. It ensures that service changes don't break dependent consumers without requiring full integration tests. Contract tests validate request/response formats, data types, and API behavior independently.