Spec-driven Development MCP Server

Instructions

Implementation Reference

• src/tools/design_confirmed.ts:6-37 (handler)

  The main handler function that executes the tool logic: confirms design completion for the feature, logs the event, and returns a markdown response with workflow progress and instructions to call the next tool.

  export async function designConfirmed(
    params: DesignConfirmedParams
  ): Promise<string> {
    const { session_id, feature_name } = params;
    console.error(`[MCP] Design confirmed for feature: ${feature_name}`);
    
    return `# ✅ Design Document Completed
  
  ## Generated Design Document:
  📄 "docs/specs/${feature_name}/design.md"
  
  The design document contains the complete technical architecture, component design, and implementation plan.
  
  ---
  
  ## Next Stage: Task Planning (4/5)
  
  ### Workflow Progress:
  - [x] 1. Goal Collection ✅
  - [x] 2. Requirements Gathering ✅
  - [x] 3. **Design Document** ✅
  - [ ] 4. **Task Planning** ← Next Stage
  - [ ] 5. Task Execution
  
  Now please call \`spec_coding_tasks_start\` to begin the task planning stage.
  
  **Session Information**:
  - Session ID: \`${session_id}\`
  - Feature Name: \`${feature_name}\`
  - Requirements: ✅ Completed
  - Design: ✅ Completed`;
  }

• src/server.ts:114-130 (schema)

  JSON schema definition for the tool's input parameters: session_id and feature_name, provided in the list of tools.

  {
    name: 'spec_coding_design_confirmed',
    description: 'Confirm the completion of the design document and proceed to the task planning phase',
    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:227-229 (registration)

  Switch case in the CallToolRequest handler that routes calls to this tool name to the designConfirmed function.

  case 'spec_coding_design_confirmed':
    result = await designConfirmed(args as any);
    break;

• src/tools/design_confirmed.ts:1-4 (schema)

  TypeScript interface defining the expected parameters for the handler function, matching the JSON schema.

  export interface DesignConfirmedParams {
    session_id: string;
    feature_name: string;
  }

• src/server.ts:11-11 (registration)

  Import statement that brings the handler function into the server module for use in tool dispatching.

  import { designConfirmed } from './tools/design_confirmed.js';