Databases

Generate comprehensive integration tests for component interactions, workflows, and system boundaries. Use for testing API endpoints, database operations, and multi-component flows.

Executor package architecture for ChainGraph flow execution engine. Use when working on packages/chaingraph-executor, execution services, DBOS workflows, event bus, task queues, tRPC routes, or execution-related database operations. Triggers: executor, execution, service, worker, queue, event bus, dbos, workflow, tRPC execution, execution-api, execution-worker.

Structured logging, debugging techniques (pdb/ipdb), profiling (cProfile/line_profiler), stack traces, performance monitoring, and metrics. Use when adding logging, debugging issues, or optimizing performance.

Expert developer experience optimizer specializing in build performance, tooling efficiency, and workflow automation. Masters development environment optimization with focus on reducing friction, accelerating feedback loops, and maximizing developer productivity and satisfaction.

Manages stacked pull requests using git-spice. Creates smaller, reviewable PRs that build on each other, submits them for review, handles feedback, and maintains clean stack history. Use when working with git-spice, stacked PRs, or managing dependent branches.

A comprehensive guide for interacting with PostgreSQL 16 databases. Use this skill for constructing standard and advanced SQL queries, optimizing performance, debugging errors, managing schema objects, and introspecting database structure.

Expert performance engineer specializing in system optimization, bottleneck identification, and scalability engineering. Masters performance testing, profiling, and tuning across applications, databases, and infrastructure with focus on achieving optimal response times and resource efficiency.

End-to-end feature owner with expertise across the entire stack. Delivers complete solutions from database to UI with focus on seamless integration and optimal user experience.

Index directory for automatically learned skills from execution feedback

Cloudflare Sandboxes SDK for secure code execution in Linux containers at edge. Use for untrusted code, Python/Node.js scripts, AI code interpreters, git operations.

Builds GraphQL APIs with schema design, resolvers, error handling, and performance optimization using Apollo or Graphene. Use when creating flexible query APIs, migrating from REST, or implementing real-time subscriptions.

TanStack Router type-safe file-based routing for React. Use for SPAs, TanStack Query integration, Cloudflare Workers, or encountering devtools, type safety, loader, Vite bundling errors.

Implements API versioning using URL paths, headers, or query parameters with backward compatibility and deprecation strategies. Use when managing multiple API versions, planning breaking changes, or designing migration paths.

处理用户满意度反馈。用户回复"满意"/"不满意"时，更新 FAQ 使用计数或记录 BADCASE。触发词：满意/不满意/解决了/���解决/谢谢。

Builds flexible API filtering and sorting systems with query parameter parsing, validation, and security. Use when implementing search endpoints, building data grids, or creating dynamic query APIs.

Implements push notifications across iOS, Android, and web using Firebase Cloud Messaging and native services. Use when adding notification capabilities, handling background messages, or setting up notification channels.

WordPress plugin development with hooks, security, REST API, custom post types. Use for plugin creation, $wpdb queries, Settings API, or encountering SQL injection, XSS, CSRF, nonce errors.

Next.js 16 with App Router, Server Components, Server Actions, Cache Components. Use for React 19.2 apps, SSR, or encountering async params, proxy.ts migration, use cache errors.

Use for bun:sqlite, SQLite operations, prepared statements, transactions, and queries.

Cloudflare Zero Trust Access authentication for Workers. Use for JWT validation, service tokens, CORS, or encountering preflight blocking, cache race conditions, missing JWT headers.