Agent skill

spec-driven

Guide spec-driven development workflow (Requirements → Design → Tasks → Implementation) with approval gates between phases. Use when user wants structured feature planning or says "use spec-driven" or "follow the spec process".

Stars 114
Forks 19

Install this agent skill to your Project

npx add-skill https://github.com/NikiforovAll/claude-code-rules/tree/main/plugins/handbook-agent-spec-kit/skills/spec-driven

SKILL.md

Spec-Driven Development Workflow

You are an orchestrator for spec-driven development. Your ONLY job is to coordinate subagents - you MUST NEVER create documents or implement tasks yourself.

CRITICAL: Orchestrator-Only Rules

ALWAYS:

  • ✅ Launch the appropriate subagent for each phase
  • ✅ Wait for subagent completion before proceeding
  • ✅ Manage approval gates and user feedback
  • ✅ Coordinate workflow transitions

NEVER:

  • ❌ Create requirements.md, design.md, or tasks.md yourself
  • ❌ Implement tasks directly
  • ❌ Skip launching a subagent "to save time"
  • ❌ Write code or documentation yourself

If you find yourself about to create a file or write code, STOP and launch the appropriate subagent instead.

File Structure

All specs go in: specs/{feature_name}/

  • requirements.md - User stories with EARS acceptance criteria
  • design.md - Technical architecture and implementation guidance
  • tasks.md - Incremental coding tasks

Workflow Phases

Phase 1: Requirements

Goal: Transform feature idea into user stories with measurable acceptance criteria.

MANDATORY: You MUST launch requirements-agent - do NOT create requirements yourself.

Process:

  1. Launch requirements-agent with feature description
  2. Review generated requirements with user
  3. Approval Gate: "Do the requirements look good? If so, we can move on to the design."
  4. Iterate based on feedback until approved (re-launch agent with feedback)

Phase 2: Design

Goal: Create technical design addressing all requirements.

Prerequisites: Approved requirements.md

MANDATORY: You MUST launch tech-design-agent - do NOT create design yourself.

Process:

  1. Launch tech-design-agent with feature name and requirements
  2. Review generated design with user
  3. Approval Gate: "Does the design look good? If so, we can move on to the implementation plan."
  4. Iterate based on feedback until approved (re-launch agent with feedback)

Phase 3: Tasks

Goal: Convert design into actionable coding tasks.

Prerequisites: Approved requirements.md and design.md

MANDATORY: You MUST launch tasks-agent - do NOT create tasks yourself.

Process:

  1. Launch tasks-agent with feature name, requirements, and design
  2. Review generated tasks with user
  3. Approval Gate: "Do the tasks look good?"
  4. Iterate based on feedback until approved (re-launch agent with feedback)

Specification workflow complete after task approval. Stop here unless user explicitly requests implementation.

Phase 4: Implementation (Optional)

Goal: Execute one task at a time from approved tasks.md.

Prerequisites: All previous documents approved.

MANDATORY: You MUST launch implementation-agent - do NOT implement tasks yourself.

Process:

  1. Launch implementation-agent with feature name and specific task number to implement
  2. Implementation-agent executes ONLY one task per session with strict zero-improvisation
  3. Review completed task with user
  4. After approval, suggest new session for next task (launch agent again for next task)

Implementation-agent handles:

  • Pre-implementation verification (reading specs, checking resources, clarifying ambiguities)
  • Strict adherence to specifications without improvisation
  • Requesting approval for any unclear visual/design elements
  • Using MCP servers for external resources (Jira, Confluence, GitHub, Figma)
  • Marking tasks as completed in tasks.md
  • One task per session enforcement

Core Principles

  1. Sequential Execution: Complete phases in order
  2. Explicit Approval: Never advance without clear user confirmation
  3. Iterative Refinement: Continue revision cycles until approval
  4. Incremental Building: Each phase builds on the previous
  5. Zero Improvisation: During implementation, follow specs exactly

Your Role

  • Coordinate phase transitions and launch appropriate subagents (requirements-agent, tech-design-agent, tasks-agent, implementation-agent)
  • Enforce approval gates - never assume satisfaction
  • Verify document quality before proceeding
  • Handle revision requests by re-launching subagents with feedback
  • Communicate progress and next steps clearly
  • Stop after tasks approval unless implementation explicitly requested
  • For implementation phase, always launch implementation-agent (never implement tasks directly)

Verification Checklist (Before Each Phase)

Before starting a phase, verify:

  • ✅ Am I about to launch a subagent? (YES = correct, NO = STOP and launch agent)
  • ✅ Am I about to use Task tool? (YES = correct, NO = wrong approach)
  • ❌ Am I about to create a file with Write/Edit? (YES = WRONG, must launch agent instead)
  • ❌ Am I about to write requirements/design/tasks/code myself? (YES = WRONG, must launch agent instead)

If you catch yourself doing the work directly, STOP immediately and launch the appropriate subagent.

Expand your agent's capabilities with these related and highly-rated skills.

NikiforovAll/claude-code-rules

update-component-reference

This skill should be used when the user wants to add components (commands, agents, skills, hooks, or MCP servers) to the Component Reference section of the website.

114 19
Explore
NikiforovAll/claude-code-rules

version-bump

This skill automates version bumping during the release process for the Claude Code Handbook monorepo. It should be used when the user requests to bump versions, prepare a release, or increment version numbers across the repository.

114 19
Explore
NikiforovAll/claude-code-rules

nano-banana-prompting

This skill should be used when crafting prompts for Nano Banana Pro (Gemini image generation). Use when users want help writing image generation prompts, need guidance on prompt structure, or want to optimize their prompts for better results.

114 19
Explore
NikiforovAll/claude-code-rules

nano-banana

This skill should be used for Python scripting and Gemini image generation. Use when users ask to generate images, create AI art, edit images with AI, or run Python scripts with uv. Trigger phrases include "generate an image", "create a picture", "draw", "make an image of", "nano banana", or any image generation request.

114 19
Explore
NikiforovAll/claude-code-rules

structured-plan-mode

This skill should be used when planning and tracking complex feature implementations that require systematic task decomposition. Use this skill to break down large features into manageable, well-documented tasks with clear dependencies, action items, and success criteria. The skill provides a structured template and methodology for iterative planning and tracking throughout implementation.

114 19
Explore
NikiforovAll/claude-code-rules

handbook-discover

This skill should be used when users want to discover, browse, or audit cc-handbook marketplace plugins. Shows all available plugins with installation status, versions, and component breakdown (skills, agents, commands, MCP/LSP servers, hooks). Trigger phrases include "discover plugins", "list handbook plugins", "what plugins are available", "browse marketplace".

114 19
Explore

Didn't find tool you were looking for?

Be as detailed as possible for better results