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npm version CI License: MIT

SkillForge MCP

日本語

An MCP server that exposes the Agent Skill creation guide (9 phases) as MCP resources. AI agents retrieve only the phases they need on demand and follow the process to build SKILL.md files.

Quick Start

Claude Code:

claude mcp add skill-forge-mcp -- npx skill-forge-mcp

Gemini CLI:

gemini mcp add skill-forge-mcp -- npx skill-forge-mcp

VS Code (GitHub Copilot).vscode/mcp.json:

{
  "servers": {
    "skill-forge-mcp": {
      "command": "npx",
      "args": ["skill-forge-mcp"]
    }
  }
}

Cursor:

{
  "skill-forge-mcp": {
    "command": "npx",
    "args": ["skill-forge-mcp"]
  }
}
Claude Desktop
{
  "mcpServers": {
    "skill-forge-mcp": {
      "command": "npx",
      "args": ["skill-forge-mcp"]
    }
  }
}

Usage

Ask your agent:

"I want to create a skill for React component design. Follow the SkillForge MCP process."

The agent will automatically:

  1. Fetch the process structure from process://manifest
  2. Read Phase 1 (process://phase/1) for scoping, run baseline measurements
  3. Record progress with mark_progress as it advances through each phase
  4. Generate the final SKILL.md following Phase 6 guidelines

Use search_process for keyword lookups across phases.

The 9 Phases

Phase Name Purpose
0 Skill Specification SKILL.md structure and frontmatter
1 Scoping & Baseline Measure failure patterns; define research scope
2 Domain Research Establish quality criteria and theoretical foundations
3 Gap Analysis Verify whether research alone enables the agent to act
4 Deep Implementation Research Fill gaps with code examples, anti-patterns, validation
5 Structuring & Completeness Confirm coverage across all categories
6 Distillation into SKILL.md Condense into ≤500 lines; maximize token efficiency
7 Deploy & Validate Place, verify spec compliance, security review
8 Evaluate & Iterate Compare against baseline, improve iteratively

Features

  • Staged access — retrieve content at phase or section granularity
  • Cross-phase search — keyword search across all 9 phases
  • Progress tracking — record and query per-phase completion status
  • Prompt templatescreate_skill and resume_skill prompts for guided workflows
  • Structured outputoutputSchema + structuredContent on all tools for programmatic consumption
  • State persistence — optionally retain progress across sessions
  • Low overhead — ~1,500 token fixed cost to the context window

API

Resources

URI Description
process://manifest Full index (JSON)
process://phase/0process://phase/8 Phase 0–8 content

Resource Templates

Template Description
process://phase/{phaseId}/section/{sectionName} Retrieve a single section
process://phases/{+phaseIds} Batch retrieval (e.g. 1,2,3)

Tools

Tool Description Input
search_process Keyword search across all phases { "query": "frontmatter", "maxResults": 5 }
mark_progress Record phase progress { "phaseId": 1, "status": "in-progress" }
get_status Progress summary for all phases {}

status: "not-started" · "in-progress" · "completed"

Prompts

Prompt Description
create_skill Full guided workflow (Phase 0→8). Accepts a topic argument.
resume_skill Resume from current progress. Checks get_status and continues.

Configuration

Set SKILL_FORGE_PERSIST=true to persist progress to ~/.skill-forge-mcp/state.json:

{
  "mcpServers": {
    "skill-forge-mcp": {
      "command": "npx",
      "args": ["skill-forge-mcp"],
      "env": { "SKILL_FORGE_PERSIST": "true" }
    }
  }
}

Development

git clone https://github.com/popyson1648/skill-forge-mcp.git
cd skill-forge-mcp
npm install
npm run build
npm test          # 52 tests
Project structure
src/
├── index.ts        # Entry point
├── content.ts      # Content loading & section extraction
├── search.ts       # Cross-phase search
├── state.ts        # State management & persistence
├── status.ts       # Status table formatter
├── content/        # English content (served)
└── content-ja/     # Japanese translations (developer reference only)
tests/
├── content.test.ts
├── search.test.ts
├── state.test.ts
├── resources.test.ts
└── tools.test.ts

Requirements: Node.js >= 18

Contributing

Contributions are welcome! Feel free to open an Issue or submit a Pull Request.

License

MIT

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MCP server for guided Agent Skill creation in 9 phases

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