harvest-mcp-server

Instructions

Implementation Reference

• src/tools/estimates.ts:38-56 (handler)

  The handler class that executes the 'get_estimate' tool logic by calling the Harvest API.

  class GetEstimateHandler implements ToolHandler {
    constructor(private readonly config: BaseToolConfig) {}
  
    async execute(args: Record<string, any>): Promise<CallToolResult> {
      try {
        const inputSchema = z.object({ estimate_id: z.number().int().positive() });
        const { estimate_id } = validateInput(inputSchema, args, 'get estimate');
        
        logger.info('Fetching estimate from Harvest API', { estimateId: estimate_id });
        const estimate = await this.config.harvestClient.getEstimate(estimate_id);
        
        return {
          content: [{ type: 'text', text: JSON.stringify(estimate, null, 2) }],
        };
      } catch (error) {
        return handleMCPToolError(error, 'get_estimate');
      }
    }
  }

• src/tools/estimates.ts:136-150 (registration)

  The registration block for the 'get_estimate' tool within the tool registration function.

  {
    tool: {
      name: 'get_estimate',
      description: 'Retrieve a specific estimate by ID with complete details including line items, terms, and client information.',
      inputSchema: {
        type: 'object',
        properties: {
          estimate_id: { type: 'number', description: 'The ID of the estimate to retrieve' },
        },
        required: ['estimate_id'],
        additionalProperties: false,
      },
    },
    handler: new GetEstimateHandler(config),
  },