Orchestrate

Treat the current session as the control tower. Keep decomposition, worker routing, integration, user communication, and final review in this session. Use orchestrate.sh to control detached agent-CLI workers in tmux or cmux.

Resolve ORCH to the absolute orchestrate.sh adjacent to the SKILL.md that loaded this skill. Verify that it is executable before continuing. Use the output of "$ORCH" help as the authority for command syntax, supported profiles, and defaults; the current help command exits with status 1 after printing that output.

Control invariants

• Launch full-auto workers only in directories the user has entrusted to autonomous edits and commands.
• Record the active ORCH_HOME and choose a unique run prefix. Start every worker ID with that prefix so concurrent control towers sharing the state directory cannot collide.
• Record each worker's ID, directory, workstream, and latest state. Pass explicit ledger IDs to waitall and stop; reserve no-ID waitall, stop --all, and gc for recovery after confirming the entire ORCH_HOME is in scope.
• Route human decisions to the user. Treat --answer as an assertion that the user chose the supplied response, and pass it only after receiving that choice.
• Interpret DONE as a settled worker screen. Establish task completion separately by reading the logs, checking for trailing questions or unfinished plans, reviewing the result, and running verification.
• Interpret TIMEOUT as a live worker that needs inspection or more time. Inspect with poll or logs, then wait again.
• Run commands that may exceed the host's foreground limit (spawn, run, wait, waitall, and stop) through the host's non-blocking execution facility, retaining the handle until stdout is collected.

For two or more concurrent workers, read [references/fan-out.md](references/fan-out.md) completely before creating any worker, then apply it alongside the loop below.

Dispatch loop

1. Plan the workstreams. Give each active workstream one owner, one bounded deliverable, one verification requirement, and explicit coordination boundaries. Serialize work that edits the same checkout or depends on unfinished output. This step is complete when every active workstream has an unambiguous boundary, owner, deliverable, and verification requirement.

1. Spawn and ledger each worker. Give it a stable ID matching [A-Za-z0-9_-]+, a trusted directory, and the appropriate mux and agent profile:

``bash "$ORCH" spawn <id> --dir <trusted-dir> [--mux tmux|cmux] [--agent <profile>] ``

Record the returned worker in the run ledger. Inspect it with poll after spawn. This step is complete when each dispatched worker is live, recorded, and ready to accept a task.

1. Dispatch and supervise. Send a prompt containing the objective, scope, deliverable, verification requirement, coordination boundaries, and this human-input contract:

> If you need a human decision, print a line exactly: >>> NEEDS_HUMAN: <your question> and stop.

Use run for a single worker or a follow-up:

``bash "$ORCH" run <id> --file <prompt-file> --timeout 1200 ``

Parse the single STATE=<state> line and take the matching action:

Treat BUSY and UNKNOWN from poll as active states that require further inspection or waiting. This step is complete when every dispatched worker has produced a reviewable result, been reassigned, or been explicitly dropped.

1. Integrate accepted output. Inspect every result and diff in the control tower, resolve interactions, and run the required verification on the integrated state. Send focused follow-ups with another run when a deliverable or verification is incomplete. This step is complete when all accepted output forms one coherent result and its required verification passes.

1. Review the whole result. Account for every workstream, worker state, dropped item, verification result, and unresolved question. This step is complete when no actionable finding or unaccounted workstream remains.

1. Clean up the run. Collect any final logs, then call stop <id> for each worker in the ledger. Preserve unrelated workers and every worktree; worktree removal requires separate user authorization. This step is complete when every worker created by this run is stopped and its metadata is gone.

Completion gate

Call the task complete only when every workstream is completed or explicitly dropped, all accepted output is integrated, required verification has passed, no human decision or trailing worker question remains, the control tower has reviewed the combined result, and run-scoped cleanup is complete.

Conditional operations

Immediately before using non-core commands such as attach, list, or gc, authoring a custom agent profile, recovering after a crash, or tuning completion detection, run "$ORCH" help and follow the installed script's current output. For a custom profile, also inspect the P_* profile contract at the top of the adjacent orchestrate.sh. Validate an unverified profile with a throwaway worker before trusting its state classification.