Orchestrate

Turn a task into a model-tiered multi-agent plan, run it, and synthesize the result yourself.

Task

$ARGUMENTS

Step 0: Is orchestration warranted?

Before decomposing anything, check whether the task genuinely splits into 2+ independent pieces of real work. A task confined to one file, needing just one command, or with a single obvious fix, doesn't need a plan or a subagent: do it directly and say so in one line. Below that bar, spawning, tracking, and merging subagents costs more than the work itself, and a fabricated multi-phase plan for a one-line change is worse than no plan.

If it passes this bar, continue to Step 1.

Step 1: Decompose

Break the task into subtasks. For each, state its concrete input, its expected output, and classify it as one of:

Step 2: Model table (model is required, never inherited)

Every spawn call MUST set model explicitly. An unset model silently inherits the caller (often the most expensive model available) and defeats the whole point of tiering. Treat a missing model field as an incomplete call, not a default to fill in later.

Step 3: Parallelize with strict file ownership

Group subtasks into independent tracks: a track is independent if it shares no file or directory with any other track. Before spawning, write down the ownership map (track → files/dirs it will touch) and confirm no two tracks overlap. Two agents editing the same file is a merge conflict you caused, not one you'll resolve later: split the map instead of hoping it works out.

Spawn every independent track's subagent(s) in parallel: multiple Task calls in the same turn. Sequential subtasks (B depends on A's output) run one after another in the same session, passing A's actual output forward, never a paraphrase of it.

Step 4: Orchestrator does the synthesis and the git

Once every track reports back:

1. Review each subagent's actual diff or output: don't take a subagent's self-report on faith.
2. Merge/synthesize the final deliverable yourself. Never spawn a subagent to do the final merge.
3. If the task touched code, run the project's real verification commands (test/lint/ build): discover them from the repo, don't assume npm test or make test exist.
4. Any git operation (commit, push) is the orchestrator's job alone: no subagent commits.

Portability: no Task/subagent tool available

Run the exact same Step 1-4 structure yourself, inline, sequentially, in dependency order: research tracks first, then planning, then implementation, then your own synthesis. Nothing about the plan's correctness depends on subagents existing; they're a speed optimization, not a requirement.

Worked examples

Research sweep (independent, parallel research tracks)

Task: "Research current pricing for 4 competitors, write a comparison table."

• 4 research subtasks (one per competitor), each Explore/haiku, no shared file: spawn all 4 in the same turn.
• Orchestrator synthesizes the 4 reports into the comparison table itself.

Codebase-wide refactor (independent, parallel implementation tracks)

Task: "Rename Invoice to Bill across models/, api/, tests/, docs/."

• One research subtask first (Explore/haiku): grep every reference, return the full list.
• 4 implementation subtasks, one per directory, each general-purpose/sonnet, ownership map = {models/, api/, tests/, docs/} with zero overlap.
• Orchestrator runs the test suite, reviews all 4 diffs, commits once, alone.

Mixed build (research → plan → parallel implementation → synthesis)

Task: "Add a new payment provider integration."

• 1 research subtask (Explore/haiku): find the existing provider abstraction and its test patterns.
• 1 planning subtask (Plan/opus): design the new provider's interface against what research found.
• 2-3 parallel implementation subtasks (sonnet) against the approved plan, one per component (client, tests, config), each with a distinct file scope.
• Orchestrator integrates, verifies, commits.

Output format

Report the subtask list with each classification and model, the parallel groupings actually run, and the synthesized result. If Step 0 concluded orchestration wasn't warranted, say so in one line and do the work directly instead: no plan needed for that case.

Usage

/orchestrate Research current pricing for 4 payment competitors and write a comparison table
/orchestrate Rename the Invoice model to Bill everywhere in the codebase
/orchestrate Add support for a new payment provider (client + tests + config)