Team Frontend Development Skill

Team Frontend Development

Unified team skill: frontend development with built-in ui-ux-pro-max design intelligence. Covers requirement analysis, design system generation, frontend implementation, and quality assurance. Built on team-worker agent architecture — all worker roles share a single agent definition with role-specific Phase 2-4 loaded from role.md specs.

Architecture

Skill(skill="team-frontend", 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
               [analyst] [architect] [developer] [qa]
              (team-worker agents, each loads roles/<role>/role.md)

Role Registry

| Role | Path | Prefix | Inner Loop | |------|------|--------|------------| | coordinator | roles/coordinator/role.md | — | — | | analyst | roles/analyst/role.md | ANALYZE-* | false | | architect | roles/architect/role.md | ARCH-* | false | | developer | roles/developer/role.md | DEV-* | true | | qa | roles/qa/role.md | QA-* | 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: FE
Session path: .workflow/.team/FE-<slug>-<date>/
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 | |------|-------|-------------------|-----------| | Analyst (ANALYZE-) | (default) | high | Design intelligence requires deep UI/UX reasoning | | Architect (ARCH-) | (default) | high | Component spec and design token generation needs precision | | Developer (DEV-) | (default) | high | Frontend code generation needs full reasoning | | QA (QA-) | (default) | high | 5-dimension audit requires thorough analysis |

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 execution status graph | | resume / continue | Advance to next step |

Session Directory

.workflow/.team/FE-<slug>-<YYYY-MM-DD>/
├── .msg/
│   ├── messages.jsonl          # Message bus log
│   └── meta.json               # Session state + cross-role state
├── task-analysis.json          # Coordinator analyze output
├── wisdom/                     # Cross-task knowledge
├── analysis/                   # Analyst output
│   ├── design-intelligence.json
│   └── requirements.md
├── architecture/               # Architect output
│   ├── design-tokens.json
│   ├── component-specs/
│   └── project-structure.md
├── qa/                         # QA output
│   └── audit-<NNN>.md
└── build/                      # Developer output

Specs Reference

specs/pipelines.md — Pipeline definitions and task registry

v4 Agent Coordination

Message Semantics

| Intent | API | Example | |--------|-----|---------| | Send architecture specs to running developer | send_message | Queue design tokens and component specs to DEV-* | | Not used in this skill | assign_task | No resident agents -- all workers are one-shot | | Check running agents | list_agents | Verify agent health during resume |

Pipeline Pattern

Sequential pipeline with GC loops: analyst -> architect -> developer -> QA. In system mode, architect revision (ARCH-002) and developer (DEV-001) may run in parallel after QA-001 arch review.

fork_context Consideration

Developer workers (DEV-*) benefit from fork_context: true when the coordinator has accumulated significant design context (analysis results, architecture specs, design tokens). This avoids the developer needing to re-read all upstream artifacts:

// Consider fork_context: true for developer in feature/system modes
spawn_agent({
  agent_type: "team_worker",
  task_name: "DEV-001",
  fork_context: true,  // Developer gets full coordinator context including design decisions
  items: [...]
})

GC Loop (QA Fix Cycle)

QA may flag FIX_REQUIRED, creating DEV-fix + QA-recheck tasks (max 2 rounds). If QA score remains < 6 after 2 rounds, escalate to user.

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: "DEV-001", items: [...] }) -- queue architecture specs to running developer
close_agent({ target: "ARCH-001" }) -- cleanup by name after completion

Error Handling

| Scenario | Resolution | |----------|------------| | Unknown command | Error with available command list | | Role not found | Error with role registry | | QA score < 6 over 2 GC rounds | Escalate to user | | ui-ux-pro-max unavailable | Degrade to LLM general design knowledge | | Worker no response | Report waiting task, suggest user resume | | Pipeline deadlock | Check blockedBy chain, report blocking point |

Agent Skills: Team Frontend Development

Install this agent skill to your local

Skill Files