subagent

# subagent — one-shot / batch / background provider subagent **Wrong lane?** A long-lived collaborator you message back and forth → /cc-fleet:team; a multi-phase pipeline with dependencies or resume → /cc-fleet:workflow; arbitration in cc-fleet-shared/routing.md. When this skill cites `cc-fleet-shared/<file>.md`, OPEN it with the Read tool at `../cc-fleet-shared/<file>.md` relative to this SKILL.md — the cited content is load-bearing, not optional background. `cc-fleet subagent` runs a provider model headless and returns the result directly on Bash stdout — **no** tmux pane, **no** `TeamCreate`/`SendMessage`/`TeamDelete`. The analog of the native `Agent`/`Task` tool, but the model can be a provider id. It reuses the same provider selection and the same fingerprint self-heal flow as spawn (cc-fleet-shared/troubleshooting.md). It's the lightweight synchronous branch. ## When to use it - **One-shot research / analysis / judgement** — you want an answer, not a long-lived colleague. - **Batch fan-out** — N independent tasks in parallel. subagent is **lock-free**, so N calls don't serialize behind a server lock the way N spawns do — true parallelism. - **Cost-bounded probes** — `--timeout` caps wall-clock; the return value carries `usage` / `total_cost_usd`; it stops when done (nothing to forget to tear down). ## The provider ask ladder (ask at most once per task) 1. The user named a provider or model → use it. 2. Else run `cc-fleet default --json`: if it returns a provider (s...