fleet-worker

Run a cheap headless Claude Code worker on a cheaper model and let an Opus orchestrator (this session) fan workers out in parallel, then verify and land their work. The worker keeps Claude Code's entire tool harness (Read/Write/Edit/Bash/Glob/Grep/Task/MCP/hooks) — only the brain is swapped to a cheaper model via env — a cheaper Anthropic model (Sonnet/Haiku) or a non-Anthropic endpoint. GLM-5.3 on z.ai is the default worked example; the mechanism is provider- and model-agnostic (any Anthropic-compatible endpoint).

Want to offload to Grok (xAI's grok CLI)? That's not this skill. Every fleet-worker brain is a claude -p process pointed at an Anthropic-compatible endpoint. Grok Build CLI is its own binary and protocol (grok -p, auth via GROK_DEPLOYMENT_KEY), not a claude -p wrapper — so it can't ride fleet-worker's launcher. Grok is a first-class worker in fleetflow instead (alongside Codex), which spawns heterogeneous OS-process workers of different binaries — now its own repo at 0xDarkMatter/fleetflow, mounted as the /fleetflow skill. Use fleetflow for a Grok lane or any mixed-provider fan-out.