maestro-orchestration

name	maestro-orchestration
model	opus
description	Conductor agent pattern that decomposes complex tasks, dispatches specialist sub-agents, manages dependencies, and synthesizes results into a unified deliverable. One specific orchestration pattern — a single conductor coordinating specialists. Use directly when that shape already fits; use `orchestration-pattern-selector` first if unsure, or `agent-dispatch-playbook` to plan a general parallel dispatch's mechanics. Use when: 'coordinate multiple specialist agents', 'orchestrate a complex multi-phase task', 'run a conductor pattern across agents', 'this task needs live agent coordination', 'decompose and dispatch to sub-agents'.
category	dispatch-coordinate
metadata	{"version":"1.1"}
inputs	[{"name":"objective","type":"string","description":"The complex task or objective that requires multi-agent coordination","required":true},{"name":"available_agents","type":"string[]","description":"List of specialist agent types available for dispatch (e.g., scout, architect, kraken, arbiter)","required":false}]
outputs	[{"name":"synthesis","type":"string","description":"Unified orchestration report with task decomposition, agent outputs, conflict resolutions, and integrated deliverables"}]

Maestro Orchestration

Purpose: Act as a conductor agent that decomposes complex objectives into subtasks, dispatches specialist sub-agents with appropriate isolation and model routing, manages inter-agent dependencies, resolves conflicts between agent outputs, and synthesizes results into a coherent deliverable.

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0. Philosophy

Multi-agent orchestration fails in two ways: dispatching too early (before the task is decomposed) and dispatching too broadly (so many concurrent agents that integration overhead exceeds the parallelism benefit). The Maestro pattern exists because neither of those failure modes is obvious when you're inside a complex task.

The core insight is that the conductor's job is judgment, not execution. A conductor that starts implementing is a conductor that has lost the thread. Everything that requires a decision — decomposition, conflict resolution, synthesis — stays in the maestro context. Everything mechanical goes to a sub-agent.

This matters because complex tasks have emergent dependencies that aren't visible at the start. The maestro must hold the full picture while sub-agents hold only their slice. If that judgment is delegated, the integration phase discovers contradictions that no individual agent was positioned to prevent.

Second principle: synthesis is not summarization. After agents complete, the maestro integrates outputs into a single coherent deliverable — not a list of summaries. This requires reading all agent outputs, resolving contradictions, and producing something none of the agents could have produced individually.

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I. When to Use

• A task requires multiple specialist capabilities (research + implementation + validation)
• Work has both independent tracks (parallelizable) and dependent phases (sequential)
• The objective is too complex for a single agent pass -- it needs decomposition and coordination
• You need live conflict resolution when parallel agents produce contradictory outputs
• Multi-repo or multi-package work where different agents own different scopes

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II. Orchestration Patterns

Pattern A: Hierarchical (Default for Implementation)

Maestro
  +-- architect  (plan)
  +-- kraken     (implement)
  +-- arbiter    (validate)

Best when the task has a clear plan-build-verify shape.

Pattern B: Pipeline (Linear Dependency)

scout --> architect --> kraken --> arbiter --> herald

Best when each phase depends strictly on the prior phase's output.

Pattern C: Swarm (Parallel Research)

Maestro
  +-- scout   (internal codebase)
  +-- oracle  (external research)
  +-- scout   (pattern analysis)
  --> synthesize all results

Best for broad information gathering before a decision.

Pattern D: Generator-Critic (Iterative Refinement)

architect --> critic --> architect --> critic --> final

Best for high-quality outputs that benefit from review cycles.

Pattern E: Jury (High-Stakes Decisions)

critic_1 --+
critic_2 --+--> majority vote --> decision
critic_3 --+

Best for architecture decisions or security reviews where multiple perspectives reduce risk.

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III. Workflow

Step 1: Task Decomposition

Before dispatching any agent, decompose the objective:

1. Parse the objective into discrete subtasks
2. Map dependencies between subtasks (which must complete before others can start)
3. Identify parallelism -- subtasks with no dependencies between them can run concurrently
4. Select pattern from Section II based on the dependency graph shape

Step 2: Agent-to-Task Assignment

For each subtask:

1. Select the specialist agent best suited (scout for exploration, architect for planning, kraken for implementation, arbiter for validation)
2. Assign model routing -- Opus for judgment/synthesis tasks, Sonnet for mechanical/execution tasks
3. Define isolation -- worktree if same repo different dirs, background if different repos, foreground if blocking
4. Write the agent prompt with: goal (first line), exact file paths, verification command, files NOT to touch

Step 3: Dispatch and Monitor

Execute the orchestration plan:

1. Phase blockers first -- foreground agents that must complete before parallel work begins
2. Launch parallel tracks -- background agents for independent subtasks
3. Collect results -- read agent output files as they complete
4. Resolve conflicts -- when two agents produce contradictory changes, make the judgment call in the conductor thread

Step 4: Synthesis

After all agents complete:

1. Integrate outputs -- merge code changes, combine reports, unify recommendations
2. Verify combined result -- run build/test gates on the integrated output
3. Produce orchestration report -- document what was done, by whom, what conflicts arose, and what the final state is
4. Surface lessons learned -- what worked, what failed, what to do differently next time

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IV. Agent Reference

Agent	Purpose	Model	Best For
scout	Codebase exploration	sonnet	Finding patterns, mapping structure
oracle	External research	opus	Web/docs, best practices
architect	Feature planning	opus	Design, specification
kraken	TDD implementation	opus	Building features
arbiter	Validation/testing	opus	Unit/integration tests
critic	Code review	sonnet	Quality assessment
herald	Release preparation	sonnet	Deployment, changelog
phoenix	Refactor planning	opus	Technical debt

If available_agents is not specified, select from the full roster based on the task.

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V. Output

• Orchestration Report containing: task decomposition table, pattern selected with rationale, execution log per phase, agent output summaries, conflict resolutions, integrated deliverables list, validation status, and lessons learned
• Saved to: project's orchestration output directory or returned inline for lightweight tasks
• Format: structured markdown with tables for subtask tracking

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VI. Examples

Scenario 1: "Wire the new authentication service across 3 microservices" --> Hierarchical pattern; architect produces integration plan; 3 parallel kraken agents (one per service, worktree isolation); arbiter validates cross-service contract tests; maestro resolves one shared-schema conflict between services A and C.

Scenario 2: "Research MCP architecture patterns and produce an ADR" --> Swarm pattern; scout analyzes internal codebase patterns, oracle researches external MCP ecosystem, second scout catalogs existing ADRs; maestro synthesizes into a single ADR with 3 options ranked by trade-offs.

Scenario 3: "Refactor the event system -- this is high-stakes, get multiple reviews" --> Generator-Critic into Jury; architect proposes refactor plan, critic_1 reviews for correctness, critic_2 reviews for performance, critic_3 reviews for backward compatibility; majority vote selects approach B; kraken implements; arbiter validates with regression suite.

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VII. Edge Cases

• No specialist agents available: maestro falls back to single-thread execution, performing each subtask sequentially in its own context
• Two agents modify the same file: do NOT dispatch both in parallel; run one foreground, apply its changes, then dispatch the second with the updated file state
• Agent reports "complete" but verification fails: re-dispatch with the failure output included in the prompt; cap retries at 2 before escalating to the user
• Objective is too vague to decompose: ask the user for clarification before dispatching; do not guess at subtask boundaries

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VIII. Anti-Patterns

• Dispatching agents before completing decomposition -- leads to redundant work and conflicts
• Using Opus for mechanical fix agents that have exact instructions -- waste of reasoning budget; route to Sonnet
• Launching more than 4 concurrent agents -- diminishing returns from coordination overhead; 3 is the sweet spot
• Passing synthesis responsibility to a sub-agent -- the conductor (maestro) must own synthesis; sub-agents produce parts, maestro produces the whole
• Skipping the verification gate after integration -- combined outputs can have conflicts that individual agent verification missed

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IX. Quality Checklist

Before dispatch:

• Objective is decomposed into discrete subtasks with named owners (not "agents" generically)
• Dependency graph is mapped — you know which subtasks block others
• Pattern selected from Section II with explicit rationale
• Every agent prompt has: goal (first line), file scope, verification command, files NOT to touch
• Model routing is explicit for each agent (sonnet vs. opus — not inherited)
• Concurrent agent count is 4 or fewer
• Conflict resolution plan exists for any subtasks that touch shared files

During execution:

• Blocker agents complete and are verified before parallel tracks launch
• Agent outputs are collected as they arrive (not batched at the end)
• Contradictions between concurrent outputs are resolved in the maestro context, not delegated

After integration:

• Combined build / test gate passes on integrated output (not just per-agent output)
• Orchestration report documents: decomposition, pattern used, conflicts resolved, final state
• Lessons learned captured for future orchestration of similar task shapes

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X. Related Skills

• agent-dispatch-playbook — decision matrix and prompt templates for the individual dispatch decisions the maestro makes in Step 2; companion reference during orchestration planning
• orchestration-pattern-selector — use before maestro when the right pattern (Hierarchical vs. Pipeline vs. Swarm) is not obvious
• audit-sweep-dispatch — specialized swarm pattern pre-wired for health-check audits across a repo cluster
• workflow-router — upstream entry point that classifies a goal and routes to maestro when coordination is needed
• handoff-protocol — ensures sub-agents write structured handoffs the maestro can consume reliably during synthesis
• parallel-dispatch — lightweight parallel dispatch without the full conductor pattern; use when synthesis is trivial