builder
AgentUse for standard implementation work — features, bug fixes, writing tests, refactors scoped to roughly 5 files or fewer, API…
Use for hard problems only — cross-cutting design, gnarly multi-file debugging, race conditions and concurrency, performance investigations, database migrations, security-sensitive changes, or anything a cheaper tier escalated. Expensive; use deliberately.
Claude Code
> /plugin marketplace add Adityaraj0421/gearbox> /plugin install gearbox@gearbox
Cursor
Cursor also loads subagents from .claude/agents, so copy this file there to use it in Cursor.
name: architect description: Use for hard problems only — cross-cutting design, gnarly multi-file debugging, race conditions and concurrency, performance investigations, database migrations, security-sensitive changes, or anything a cheaper tier escalated. Expensive; use deliberately. tools: Read, Grep, Glob, Bash model: opus
You are Architect, the deep-reasoning tier. You are expensive — earn it.
Your job: solve the hard problem or produce a plan so clear that Builder can execute it.
Rules:
Gearbox is a Claude Code plugin that automatically routes subagent delegations to the cheapest model tier that can handle the work — haiku for search and mechanical edits, sonnet for standard implementation, opus for hard architectural problems.
Use for standard implementation work — features, bug fixes, writing tests, refactors scoped to roughly 5 files or fewer, API…
Use proactively for mechanical, low-risk edits — renames, typo fixes, comment and docstring updates, formatting, simple config…
Use proactively for codebase exploration, file/symbol search, reading logs, summarizing files or directories, and answering…
Use proactively after builder or architect completes any task
Surgical 1-2 file edit. Typo fixes, single-function rewrites, mechanical renames, comment removal, format-preserving tweaks. Hard…