Claude-Code-Workflow/.claude/skills/team-brainstorm/SKILL.md

name, description, allowed-tools

name	description	allowed-tools
team-brainstorm	Unified team skill for brainstorming team. All roles invoke this skill with --role arg for role-specific execution. Triggers on "team brainstorm".	TeamCreate(*), TeamDelete(*), SendMessage(*), TaskCreate(*), TaskUpdate(*), TaskList(*), TaskGet(*), Task(*), AskUserQuestion(*), Read(*), Write(*), Edit(*), Bash(*), Glob(*), Grep(*)

Team Brainstorm

Unified team skill: multi-angle brainstorming via Generator-Critic loops, shared memory, and dynamic pipeline selection. All team members invoke with --role=xxx to route to role-specific execution.

Architecture

+---------------------------------------------------+
|  Skill(skill="team-brainstorm")                    |
|  args="<topic-description>"                        |
+-------------------+-------------------------------+
                    |
         Orchestration Mode (auto -> coordinator)
                    |
              Coordinator (inline)
              Phase 0-5 orchestration
                    |
    +-------+-------+-------+-------+
    v       v       v       v
 [tw]    [tw]    [tw]    [tw]
ideator  chall-  synthe- evalua-
         enger   sizer   tor

(tw) = team-worker agent

Command Execution Protocol

When coordinator needs to execute a command (dispatch, monitor):

1. Read the command file: roles/coordinator/commands/<command-name>.md
2. Follow the workflow defined in the command file (Phase 2-4 structure)
3. Commands are inline execution guides -- NOT separate agents or subprocesses
4. Execute synchronously -- complete the command workflow before proceeding

Role Router

Input Parsing

Parse $ARGUMENTS to extract --role. If absent → Orchestration Mode (auto route to coordinator).

Role Registry

Role	Spec	Task Prefix	Inner Loop
coordinator	roles/coordinator/role.md	(none)	-
ideator	role-specs/ideator.md	IDEA-*	false
challenger	role-specs/challenger.md	CHALLENGE-*	false
synthesizer	role-specs/synthesizer.md	SYNTH-*	false
evaluator	role-specs/evaluator.md	EVAL-*	false

⚠️ COMPACT PROTECTION: 角色文件是执行文档，不是参考资料。当 context compression 发生后，角色指令仅剩摘要时，必须立即 Read 对应 role.md 重新加载后再继续执行。不得基于摘要执行任何 Phase。

Dispatch

1. Extract --role from arguments
2. If no --role → route to coordinator (Orchestration Mode)
3. Look up role in registry → Read the role file → Execute its phases

Orchestration Mode

When invoked without --role, coordinator auto-starts. User just provides topic description.

Invocation: Skill(skill="team-brainstorm", args="<topic-description>")

Lifecycle:

User provides topic description
  → coordinator Phase 1-3: Topic clarification → TeamCreate → Create task chain
  → coordinator Phase 4: spawn first batch workers (background) → STOP
  → Worker executes → SendMessage callback → coordinator advances next step
  → Loop until pipeline complete → Phase 5 report

User Commands (wake paused coordinator):

Command	Action
check / status	Output execution status graph, no advancement
resume / continue	Check worker states, advance next step

---

Shared Infrastructure

The following templates apply to all worker roles. Each role.md only needs to write Phase 2-4 role-specific logic.

Worker Phase 1: Task Discovery (shared by all workers)

Every worker executes the same task discovery flow on startup:

1. Call TaskList() to get all tasks
2. Filter: subject matches this role's prefix + owner is this role + status is pending + blockedBy is empty
3. No tasks → idle wait
4. Has tasks → TaskGet for details → TaskUpdate mark in_progress

Resume Artifact Check (prevent duplicate output after resume):

• Check whether this task's output artifact already exists
• Artifact complete → skip to Phase 5 report completion
• Artifact incomplete or missing → normal Phase 2-4 execution

Worker Phase 5: Report (shared by all workers)

Standard reporting flow after task completion:

1. Message Bus: Call mcp__ccw-tools__team_msg to log message
   • Parameters: operation="log", session_id=, from=, type=, data={ref: ""}
   • to and summary auto-defaulted -- do NOT specify explicitly
   • CLI fallback: ccw team log --session-id <session-id> --from <role> --type <type> --json
2. SendMessage: Send result to coordinator
3. TaskUpdate: Mark task completed
4. Loop: Return to Phase 1 to check next task

Wisdom Accumulation (all roles)

Cross-task knowledge accumulation. Coordinator creates wisdom/ directory at session initialization.

Directory:

<session-folder>/wisdom/
├── learnings.md      # Patterns and insights
├── decisions.md      # Architecture and design decisions
├── conventions.md    # Codebase conventions
└── issues.md         # Known risks and issues

Worker Load (Phase 2): Extract Session: <path> from task description, read wisdom directory files. Worker Contribute (Phase 4/5): Write this task's discoveries to corresponding wisdom files.

Role Isolation Rules

Allowed	Forbidden
Process tasks with own prefix	Process tasks with other role prefixes
SendMessage to coordinator	Communicate directly with other workers
Share state via team_msg(type="state_update")	Create tasks for other roles
Delegate to commands/ files	Modify resources outside own responsibility

Coordinator additional restrictions: Do not generate ideas directly, do not evaluate/challenge ideas, do not execute analysis/synthesis, do not bypass workers.

Output Tagging

All outputs must carry [role_name] prefix in both SendMessage content/summary and team_msg summary.

Message Bus (All Roles)

Every SendMessage before, must call mcp__ccw-tools__team_msg to log:

Parameters: operation="log", session_id=, from=, type=, data={ref: ""}

to and summary auto-defaulted -- do NOT specify explicitly.

CLI fallback: ccw team log --session-id <session-id> --from <role> --type <type> --json

Message types by role:

Role	Types
coordinator	pipeline_selected, gc_loop_trigger, task_unblocked, error, shutdown
ideator	ideas_ready, ideas_revised, error
challenger	critique_ready, error
synthesizer	synthesis_ready, error
evaluator	evaluation_ready, error

Shared State

Cross-role state is shared via team_msg(type="state_update") messages, persisted in .msg/meta.json:

Role	State Key
ideator	generated_ideas
challenger	critique_insights
synthesizer	synthesis_themes
evaluator	evaluation_scores

Team Configuration

Setting	Value
Team name	brainstorm
Session directory	.workflow/.team/BRS-<slug>-<date>/
Message store	.msg/messages.jsonl + .msg/meta.json in session dir

---

Three-Pipeline Architecture

Quick:
  IDEA-001 → CHALLENGE-001 → SYNTH-001

Deep (Generator-Critic Loop):
  IDEA-001 → CHALLENGE-001 → IDEA-002(fix) → CHALLENGE-002 → SYNTH-001 → EVAL-001

Full (Fan-out + Generator-Critic):
  [IDEA-001 + IDEA-002 + IDEA-003](parallel) → CHALLENGE-001(batch) → IDEA-004(fix) → SYNTH-001 → EVAL-001

Generator-Critic Loop

ideator <-> challenger loop, max 2 rounds:

IDEA → CHALLENGE → (if critique.severity >= HIGH) → IDEA-fix → CHALLENGE-2 → SYNTH
                   (if critique.severity < HIGH) → SYNTH

Cadence Control

Beat model: Event-driven, each beat = coordinator wake → process → spawn → STOP. Brainstorm beat: generate → challenge → synthesize → evaluate.

Beat Cycle (single beat)
═══════════════════════════════════════════════════════════
  Event                   Coordinator              Workers
───────────────────────────────────────────────────────────
  callback/resume ──→ ┌─ handleCallback ─┐
                      │  mark completed   │
                      │  check pipeline   │
                      ├─ handleSpawnNext ─┤
                      │  find ready tasks │
                      │  spawn workers ───┼──→ [Worker A] Phase 1-5
                      │  (parallel OK)  ──┼──→ [Worker B] Phase 1-5
                      └─ STOP (idle) ─────┘         │
                                                     │
  callback ←─────────────────────────────────────────┘
  (next beat)              SendMessage + TaskUpdate(completed)
═══════════════════════════════════════════════════════════

Pipeline beat views:

Quick (3 beats, strictly serial)
──────────────────────────────────────────────────────────
Beat  1         2              3
      │         │              │
      IDEA → CHALLENGE ──→ SYNTH
      ▲                        ▲
   pipeline                 pipeline
    start                    done

IDEA=ideator  CHALLENGE=challenger  SYNTH=synthesizer

Deep (5-6 beats, with Generator-Critic loop)
──────────────────────────────────────────────────────────
Beat  1         2              3         4         5         6
      │         │              │         │         │         │
      IDEA → CHALLENGE → (GC loop?) → IDEA-fix → SYNTH → EVAL
                              │
                        severity check
                  (< HIGH → skip to SYNTH)

Full (4-7 beats, fan-out + Generator-Critic)
──────────────────────────────────────────────────────────
Beat  1                    2              3-4        5         6
 ┌────┴────┐               │              │          │         │
 IDEA-1 ∥ IDEA-2 ∥ IDEA-3 → CHALLENGE → (GC loop) → SYNTH → EVAL
 ▲                                                              ▲
 parallel                                                    pipeline
 window                                                       done

Checkpoints:

Trigger	Location	Behavior
Generator-Critic loop	After CHALLENGE-*	If severity >= HIGH → create IDEA-fix task; else proceed to SYNTH
GC loop limit	Max 2 rounds	Exceeds limit → force convergence to SYNTH
Pipeline stall	No ready + no running	Check missing tasks, report to user

Stall Detection (coordinator handleCheck executes):

Check	Condition	Resolution
Worker no response	in_progress task no callback	Report waiting task list, suggest user resume
Pipeline deadlock	no ready + no running + has pending	Check blockedBy dependency chain, report blocking point
GC loop exceeded	ideator/challenger iteration > 2 rounds	Terminate loop, force convergence to synthesizer

Task Metadata Registry

Task ID	Role	Phase	Dependencies	Description
IDEA-001	ideator	generate	(none)	Multi-angle idea generation
IDEA-002	ideator	generate	(none)	Parallel angle (Full pipeline only)
IDEA-003	ideator	generate	(none)	Parallel angle (Full pipeline only)
CHALLENGE-001	challenger	challenge	IDEA-001 (or all IDEA-*)	Devil's advocate critique and feasibility challenge
IDEA-004	ideator	gc-fix	CHALLENGE-001	Revision based on critique (GC loop, if triggered)
CHALLENGE-002	challenger	gc-fix	IDEA-004	Re-critique of revised ideas (GC loop round 2)
SYNTH-001	synthesizer	synthesize	last CHALLENGE-*	Cross-idea integration, theme extraction, conflict resolution
EVAL-001	evaluator	evaluate	SYNTH-001	Scoring, ranking, priority recommendation, final selection

---

Coordinator Spawn Template

v5 Worker Spawn (all roles)

When coordinator spawns workers, use team-worker agent with role-spec path:

Task({
  subagent_type: "team-worker",
  description: "Spawn <role> worker",
  team_name: "brainstorm",
  name: "<role>",
  run_in_background: true,
  prompt: `## Role Assignment
role: <role>
role_spec: .claude/skills/team-brainstorm/role-specs/<role>.md
session: <session-folder>
session_id: <session-id>
team_name: brainstorm
requirement: <topic-description>
inner_loop: <true|false>

Read role_spec file to load Phase 2-4 domain instructions.
Execute built-in Phase 1 (task discovery) -> role-spec Phase 2-4 -> built-in Phase 5 (report).`
})

All roles (ideator, challenger, synthesizer, evaluator): Set inner_loop: false.

Parallel ideator spawn (Full pipeline with N angles):

When Full pipeline has N parallel IDEA tasks assigned to ideator role, spawn N distinct team-worker agents named ideator-1, ideator-2, etc. Each agent only processes tasks where owner matches its agent name.

Condition	Action
Full pipeline with N idea angles (N > 1)	Spawn N team-worker agents: ideator-1, ideator-2, ... ideator-N with run_in_background: true
Quick/Deep pipeline (single ideator)	Standard spawn: single ideator team-worker agent

Task({
  subagent_type: "team-worker",
  description: "Spawn ideator-<N> worker",
  team_name: "brainstorm",
  name: "ideator-<N>",
  run_in_background: true,
  prompt: `## Role Assignment
role: ideator
role_spec: .claude/skills/team-brainstorm/role-specs/ideator.md
session: <session-folder>
session_id: <session-id>
team_name: brainstorm
requirement: <topic-description>
agent_name: ideator-<N>
inner_loop: false

Read role_spec file to load Phase 2-4 domain instructions.
Execute built-in Phase 1 (task discovery, owner=ideator-<N>) -> role-spec Phase 2-4 -> built-in Phase 5 (report).`
})

Dispatch must match agent names: When dispatching parallel IDEA tasks, coordinator sets each task's owner to the corresponding instance name (ideator-1, ideator-2, etc.). In role.md, task discovery uses --agent-name for owner matching.

---

Completion Action

When the pipeline completes (all tasks done, coordinator Phase 5):

AskUserQuestion({
  questions: [{
    question: "Brainstorm pipeline complete. What would you like to do?",
    header: "Completion",
    multiSelect: false,
    options: [
      { label: "Archive & Clean (Recommended)", description: "Archive session, clean up tasks and team resources" },
      { label: "Keep Active", description: "Keep session active for follow-up work or inspection" },
      { label: "Export Results", description: "Export deliverables to a specified location, then clean" }
    ]
  }]
})

Choice	Action
Archive & Clean	Update session status="completed" -> TeamDelete(brainstorm) -> output final summary
Keep Active	Update session status="paused" -> output resume instructions: Skill(skill="team-brainstorm", args="resume")
Export Results	AskUserQuestion for target path -> copy deliverables -> Archive & Clean

---

Unified Session Directory

.workflow/.team/BRS-<slug>-<YYYY-MM-DD>/
├── .msg/
│   ├── messages.jsonl          # Message bus log
│   └── meta.json               # Session state + cross-role state
├── wisdom/                     # Cross-task knowledge
│   ├── learnings.md
│   ├── decisions.md
│   ├── conventions.md
│   └── issues.md
├── ideas/                      # Ideator output
│   ├── idea-001.md
│   ├── idea-002.md
│   └── idea-003.md
├── critiques/                  # Challenger output
│   ├── critique-001.md
│   └── critique-002.md
├── synthesis/                  # Synthesizer output
│   └── synthesis-001.md
└── evaluation/                 # Evaluator output
    └── evaluation-001.md

Error Handling

Scenario	Resolution
Unknown --role value	Error with available role list
Missing --role arg	Orchestration Mode → auto route to coordinator
Role file not found	Error with expected path (roles/.md)
Task prefix conflict	Log warning, proceed
Generator-Critic loop exceeds 2 rounds	Force convergence → SYNTH
No ideas generated	Coordinator prompts with seed questions