Use to run test suites, typechecks, and lints, and report results structurally. Offloads noisy test output from the orchestrator's window: a failing suite can dump 30K tokens of stack traces; this agent returns the 20 lines that matter.
Use for research tasks that would flood the main session's context: comparing libraries or services, digging through docs, investigating how an unfamiliar API works, or answering "what are the options for X". Read-only by design; returns a compact summary, never code changes.
Use to review a diff, branch, or recent commits before merge. Deliberately receives zero conversation context: fresh eyes cannot share the implementer's biases. Give it only the diff location and acceptance criteria, never the reasoning behind the implementation.
Use when building or modifying user interfaces with shadcn/ui components and blocks: new UI components, design changes, or complete UI features. Specializes in leveraging shadcn's component library and block patterns for fast, consistent interface work.
Use for Vercel AI SDK v5 implementation work: chat interfaces, tool calling, streaming, agentic loop control, type-safe custom messages, or migrating from v4. Covers useChat, streamText, generateText, tools, and the React/Vue/Svelte/Angular integrations.
★not rated 12 4mo agoA0 tokens
At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: