darknesskiller 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
Slice lanes. Read-only first: one agent per independent question, directory, package, axis. Launch concurrently.
Prompt tightly. Give each agent: lane, read/write mode, allowed paths, forbidden paths, expected output shape.
Write only when non-overlapping. Fixed-contract, non-overlapping file sets. Two lanes might touch same file: keep sequential.
Keep moving. While agents run: do local reading, planning, small safe edits. Do not poll.
Integrate. Read summaries. For writers: verify diffs. Resolve seams in main thread. Run narrowest useful check.
Rules
No duplicate lanes. No agents for one-line lookups. Never delegate ownership. Prefer more read agents over more write agents.