Spec-driven Development MCP Server

Instructions

Implementation Reference

• src/tools/tasks.ts:8-47 (handler)

  The main handler function that executes the tool logic: logs the start, reads 'gen-tasks.md' template with feature_name and session_id, and returns a formatted markdown prompt for task planning stage including workflow progress and instructions.
  export async function tasksStart( params: TasksStartParams ): Promise<string> { const { session_id, feature_name } = params; console.error(`[MCP] Starting tasks planning for feature: ${feature_name}`); // Use gen-tasks.md template const template = await readTemplate('gen-tasks.md', { feature_name, session_id }); return `# 📋 Task Planning Stage (4/5) ## Feature: ${feature_name} ### Workflow Progress: - [x] 1. Goal Collection ✅ - [x] 2. Requirements Gathering ✅ - [x] 3. Design Documentation ✅ - [x] 4. **Task Planning** ← Current Stage - [ ] 5. Task Execution --- ${template} --- **Important**: - Please create task list according to the above guidelines - **Only when you explicitly confirm the task planning is complete can you call** \`spec_coding_tasks_confirmed\` tool - **Never** call the next stage tool before the user **explicitly confirms the tasks** **Session Information**: - Session ID: \`${session_id}\` - Feature Name: \`${feature_name}\` - Requirements: \`docs/specs/${feature_name}/requirements.md\` - Design: \`docs/specs/${feature_name}/design.md\``; }
• src/server.ts:132-149 (schema)

  The input schema definition for the tool, including name, description, and required properties session_id and feature_name.
  { name: 'spec_coding_tasks_start', description: 'Start the task planning phase and provide guidance for creating the task list', inputSchema: { type: 'object', properties: { session_id: { type: 'string', description: 'Session identifier' }, feature_name: { type: 'string', description: 'Feature name' } }, required: ['session_id', 'feature_name'] } },
• src/server.ts:231-233 (registration)

  Switch case in the CallToolRequestSchema handler that registers and dispatches calls to the spec_coding_tasks_start tool by invoking the tasksStart function.
  case 'spec_coding_tasks_start': result = await tasksStart(args as any); break;
• src/server.ts:12-12 (registration)

  Import statement that brings in the tasksStart handler for use in the tool dispatch.
  import { tasksStart } from './tools/tasks.js';
• src/tools/tasks.ts:3-6 (schema)

  TypeScript interface defining the input parameters for the tasksStart handler, matching the tool's input schema.
  export interface TasksStartParams { session_id: string; feature_name: string; }