Reusable Claude Code extension registry. skills, subagents, slash commands, and hooks for engineering, git, testing, and security workflows. Distributed as a shadcn GitHub registry and as installable plugins.
Use this agent when you need a design-level architecture review of a module, a proposed change, or an entire codebase. Evaluates module boundaries, coupling and cohesion, layering violations, scalability risk, and structural decisions that will become expensive to undo. Complements code-reviewer, which focuses on…
Expert reviewer for a code change (a diff, a staged set, a branch, or named files). Reviews for correctness, security, and maintainability across JavaScript/TypeScript stacks including React, Next.js, Node, Express, and NestJS. Use proactively after writing or modifying code, before opening a pull request, or when the…
Use this agent when you need to diagnose a bug, test failure, crash, or unexpected behavior through systematic root-cause analysis. Gathers evidence, forms and tests hypotheses, and delivers a confirmed root cause with a targeted fix recommendation. Does not guess or apply speculative patches. Use when a fix attempt…
Use this agent when you need documentation written or updated from the code itself - READMEs, API references, guides, architecture overviews, or upgrade notes. Reads the actual implementation before writing a word, so the docs match what the code does rather than what anyone remembers it doing, and flags found…
Use this agent when you need to correlate errors, stack traces, and log entries across multiple services or files to find the root cause of an incident, a mysterious recurring error, or a failure that spans more than one component. Searches log files, cross-references timestamps, traces request IDs across service…
Use this agent when you need to investigate, measure, and resolve a performance problem end-to-end. Profiles the running system, identifies the actual bottleneck with numbers, designs or runs load tests, recommends targeted changes, and verifies the improvement is real. Use for slow API responses, high CPU or memory…
In-depth research agent for topics that need comprehensive, multi-source investigation with citations. Use when the user asks to research a topic thoroughly, gather and synthesize information from across the web, compare approaches or options, fact-check a claim against primary sources, or produce a sourced writeup or…
Use this agent when you need a comprehensive security audit of a codebase, module, API surface, or pull request. Covers OWASP Top 10:2025, authentication and authorization logic, secret handling, input validation, dependency vulnerabilities, and supply-chain risk. Reports findings and concrete remediation steps…