SURFACE ROUTING — read first

This skill hand-rolls subagent orchestration via raw Anthropic API calls. A managed runtime now does the same job. Which one to use depends on your surface:

• In Claude Code (incl. CCotw): use the native runtime, NOT this skill. If you can invoke /deep-research, trigger a run with the workflow keyword, set /effort ultracode, or spawn Task subagents — do that instead. The runtime gives 16-concurrent / 1000-agent ceilings, an approval gate, adversarial cross-review, and in-session resume that this skill would otherwise reimplement badly. Dynamic workflows shipped in research preview (Claude Code v2.1.154+, 2026).
• In claude.ai chat or the bare API (no workflow runtime): use this skill. Parallel API instances over httpx is the only fan-out path here. Proceed below.

Discriminator: do you have a native subagent/Task tool or a workflow command? Yes → native. No → this skill. Never reimplement the runtime where it already exists.

Orchestrating Agents