Parallel Agents

User-invoked fan-out. Use when user asks for parallel or multi-agent work.

Fan out with the workflow tool. One run owns all lanes. Set model and effort per lane with agent({ model, effort }).

Small fan-outs: Agent tool works too. Launch each lane, integrate in main thread.

Never one agent per one-line lookup.

Steps

1. Slice lanes. Read-only first: one agent per independent question, directory, package, axis. Launch concurrently.

2. Prompt tightly. Give each agent: lane, read/write mode, allowed paths, forbidden paths, expected output shape.

3. Write only when non-overlapping. Fixed-contract, non-overlapping file sets. Two lanes might touch same file: keep sequential.