Team Testing Skill | Agent Skills

Team Testing

Orchestrate multi-agent test pipeline: strategist -> generator -> executor -> analyst. Progressive layer coverage (L1/L2/L3) with Generator-Critic loops for coverage convergence.

Architecture

Skill(skill="team-testing", args="task description")
                    |
         SKILL.md (this file) = Router
                    |
     +--------------+--------------+
     |                             |
  no --role flag              --role <name>
     |                             |
  Coordinator                  Worker
  roles/coordinator/role.md    roles/<name>/role.md
     |
     +-- analyze -> dispatch -> spawn workers -> STOP
                                    |
                    +-------+-------+-------+-------+
                    v       v       v       v
                [strat] [gen]  [exec]  [analyst]
                team-worker agents, each loads roles/<role>/role.md

Role Registry

| Role | Path | Prefix | Inner Loop | |------|------|--------|------------| | coordinator | roles/coordinator/role.md | — | — | | strategist | roles/strategist/role.md | STRATEGY-* | false | | generator | roles/generator/role.md | TESTGEN-* | true | | executor | roles/executor/role.md | TESTRUN-* | true | | analyst | roles/analyst/role.md | TESTANA-* | false |

Role Router

Parse $ARGUMENTS:

Has --role <name> -> Read roles/<name>/role.md, execute Phase 2-4
No --role -> roles/coordinator/role.md, execute entry router

Delegation Lock

Coordinator is a PURE ORCHESTRATOR. It coordinates, it does NOT do.

Before calling ANY tool, apply this check:

| Tool Call | Verdict | Reason | |-----------|---------|--------| | spawn_agent, wait_agent, close_agent, send_message, assign_task | ALLOWED | Orchestration | | list_agents | ALLOWED | Agent health check | | request_user_input | ALLOWED | User interaction | | mcp__ccw-tools__team_msg | ALLOWED | Message bus | | Read/Write on .workflow/.team/ files | ALLOWED | Session state | | Read on roles/, commands/, specs/ | ALLOWED | Loading own instructions | | Read/Grep/Glob on project source code | BLOCKED | Delegate to worker | | Edit on any file outside .workflow/ | BLOCKED | Delegate to worker | | Bash("ccw cli ...") | BLOCKED | Only workers call CLI | | Bash running build/test/lint commands | BLOCKED | Delegate to worker |

If a tool call is BLOCKED: STOP. Create a task, spawn a worker.

No exceptions for "simple" tasks. Even a single-file read-and-report MUST go through spawn_agent.

Shared Constants

Session prefix: TST
Session path: .workflow/.team/TST-<slug>-<date>/
Team name: testing
CLI tools: ccw cli --mode analysis (read-only), ccw cli --mode write (modifications)
Message bus: mcp__ccw-tools__team_msg(session_id=<session-id>, ...)

Worker Spawn Template

Coordinator spawns workers using this template:

spawn_agent({
  agent_type: "team_worker",
  task_name: "<task-id>",
  fork_context: false,
  items: [
    { type: "text", text: `## Role Assignment
role: <role>
role_spec: <skill_root>/roles/<role>/role.md
session: <session-folder>
session_id: <session-id>
requirement: <task-description>
inner_loop: <true|false>

Read role_spec file (<skill_root>/roles/<role>/role.md) to load Phase 2-4 domain instructions.` },

    { type: "text", text: `## Task Context
task_id: <task-id>
title: <task-title>
description: <task-description>
pipeline_phase: <pipeline-phase>` },

    { type: "text", text: `## Upstream Context
<prev_context>` }
  ]
})

After spawning, use wait_agent({ targets: [...], timeout_ms: 900000 }) to collect results, then close_agent({ target }) each worker.

Model Selection Guide

| Role | model | reasoning_effort | Rationale | |------|-------|-------------------|-----------| | Strategist (STRATEGY-) | (default) | high | Test strategy requires deep code understanding | | Generator (TESTGEN-) | (default) | high | Test code generation needs precision | | Executor (TESTRUN-) | (default) | medium | Running tests and collecting results, less reasoning | | Analyst (TESTANA-) | (default) | high | Coverage analysis and quality assessment |

Override model/reasoning_effort in spawn_agent when cost optimization is needed:

spawn_agent({
  agent_type: "team_worker",
  task_name: "<task-id>",
  fork_context: false,
  model: "<model-override>",
  reasoning_effort: "<effort-level>",
  items: [...]
})

User Commands

| Command | Action | |---------|--------| | check / status | View pipeline status graph | | resume / continue | Advance to next step | | revise <TASK-ID> | Revise specific task | | feedback <text> | Inject feedback for revision |

v4 Agent Coordination

Message Semantics

| Intent | API | Example | |--------|-----|---------| | Send strategy to running generators | send_message | Queue test strategy findings to TESTGEN-* workers | | Not used in this skill | assign_task | No resident agents -- all workers are one-shot | | Check running agents | list_agents | Verify parallel generator/executor health |

Parallel Test Generation

Comprehensive pipeline spawns multiple generators (per layer) and executors in parallel:

// Spawn parallel generators for L1 and L2
const genNames = ["TESTGEN-001", "TESTGEN-002"]
for (const name of genNames) {
  spawn_agent({ agent_type: "team_worker", task_name: name, ... })
}
wait_agent({ targets: genNames, timeout_ms: 900000 })

GC Loop Coordination

Generator-Critic loops create dynamic TESTGEN-fix and TESTRUN-fix tasks. The coordinator tracks gc_rounds[layer] and creates fix tasks dynamically when coverage is below target.

Agent Health Check

Use list_agents({}) in handleResume and handleComplete:

// Reconcile session state with actual running agents
const running = list_agents({})
// Compare with tasks.json active_agents
// Reset orphaned tasks (in_progress but agent gone) to pending

Named Agent Targeting

Workers are spawned with task_name: "<task-id>" enabling direct addressing:

send_message({ target: "TESTGEN-001", items: [...] }) -- queue strategy context to running generator
close_agent({ target: "TESTRUN-001" }) -- cleanup by name after wait_agent returns

Completion Action

When pipeline completes, coordinator presents:

request_user_input({
  questions: [{
    question: "Testing pipeline complete. What would you like to do?",
    header: "Completion",
    multiSelect: false,
    options: [
      { label: "Archive & Clean (Recommended)", description: "Archive session, clean up team" },
      { label: "Keep Active", description: "Keep session for follow-up work" },
      { label: "Deepen Coverage", description: "Add more test layers or increase coverage targets" }
    ]
  }]
})

Session Directory

.workflow/.team/TST-<slug>-<date>/
├── .msg/messages.jsonl     # Team message bus
├── .msg/meta.json          # Session metadata
├── wisdom/                 # Cross-task knowledge
├── strategy/               # Strategist output
├── tests/                  # Generator output (L1-unit/, L2-integration/, L3-e2e/)
├── results/                # Executor output
└── analysis/               # Analyst output

Specs Reference

specs/pipelines.md — Pipeline definitions and task registry
specs/team-config.json — Team configuration

Error Handling

| Scenario | Resolution | |----------|------------| | Unknown --role value | Error with available role list | | Role not found | Error with expected path (roles/<name>/role.md) | | CLI tool fails | Worker fallback to direct implementation | | GC loop exceeded | Accept current coverage with warning | | Fast-advance conflict | Coordinator reconciles on next callback | | Completion action fails | Default to Keep Active |

Agent Skills: Team Testing

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Skill Files