Dart MCP Server

Instructions

Implementation Reference

• src/index.ts:742-774 (handler)

  Handler for the 'get_dartboards' tool call. Constructs Python code to retrieve and print available dartboards from the user's bundle (default dartboards), executes it via runDartCommand, and returns the output as text content.
  case 'get_dartboards': { console.error('[Debug] Handling get_dartboards request'); const pythonCode = ` # Get dartboards for the space print("[Debug] Getting dartboards", file=sys.stderr) try: # Get dartboards from the bundle dartboards = bundle.dartboards print("[Debug] Got dartboards:", dartboards, file=sys.stderr) if not dartboards: print("No dartboards found") sys.exit(1) # Print dartboard titles print("Available dartboards:") for d in dartboards: print(f"- {d['title']} (DUID: {d['duid']})") except Exception as e: print(f"[Debug] Error getting dartboards: {str(e)}", file=sys.stderr) sys.exit(1)`; // Add proper indentation to the Python code const command = pythonCode.split('\n').map(line => line.length > 0 ? ' ' + line : line).join('\n'); console.error('[Debug] Running Python command for getting dartboards'); const output = await this.runDartCommand(command); console.error('[Debug] Get dartboards output:', output); const response = { content: [{ type: 'text', text: output, }], }; return response; }
• src/index.ts:333-344 (registration)

  Registration of the 'get_dartboards' tool in the ListTools response, including name, description, and input schema (note: schema requires space_duid, but handler does not use it).
  name: 'get_dartboards', description: 'Get available dartboards', inputSchema: { type: 'object', properties: { space_duid: { type: 'string', description: 'Space DUID to get dartboards from', } }, required: ['space_duid'], },
• src/index.ts:333-344 (schema)

  Input schema definition for the 'get_dartboards' tool, specifying a required space_duid parameter.
  name: 'get_dartboards', description: 'Get available dartboards', inputSchema: { type: 'object', properties: { space_duid: { type: 'string', description: 'Space DUID to get dartboards from', } }, required: ['space_duid'], },
• src/index.ts:123-227 (helper)

  Helper method runDartCommand used by all tools including get_dartboards to execute dynamic Python code via child_process.spawn, which interacts with the Dart library.
  async runDartCommand(args) { return new Promise((resolve, reject) => { // Use pyenv Python const pythonPath = '/Users/speed/.pyenv/shims/python'; console.error('[Debug] Running Python command with:', pythonPath); const command = `import sys import os import traceback import json from dart import Dart, Operation, OperationKind, OperationModelKind, TaskCreate, TaskUpdate, TransactionKind, TaskSourceType, SpaceCreate from dart.generated.types import UNSET from dart.dart import _Session, UserBundle, _make_duid from dart.generated.models.icon_kind import IconKind from dart.generated.models.sprint_mode import SprintMode from dart.generated.models.validation_error_response import ValidationErrorResponse def initialize(): print("[Debug] Starting Python execution", file=sys.stderr) print("[Debug] Current directory:", os.getcwd(), file=sys.stderr) print("[Debug] PYTHONPATH:", os.environ.get('PYTHONPATH'), file=sys.stderr) print("[Debug] DART_TOKEN:", os.environ.get('DART_TOKEN'), file=sys.stderr) session = _Session() print("[Debug] Session created", file=sys.stderr) bundle = UserBundle(session) print("[Debug] UserBundle created", file=sys.stderr) dartboard_duid = bundle.default_dartboard["duid"] print(f"[Debug] Got dartboard DUID: {dartboard_duid}", file=sys.stderr) client = Dart() print("[Debug] Dart client created", file=sys.stderr) return client, bundle, dartboard_duid def run_command(client, bundle, dartboard_duid): ${args} def main(): client, bundle, dartboard_duid = initialize() run_command(client, bundle, dartboard_duid) try: main() except Exception as e: print(f"Error: {str(e)}", file=sys.stderr) traceback.print_exc(file=sys.stderr) sys.exit(1)`; console.error('[Debug] Python command:', command); // Create a clean environment without virtual env variables const env = { ...process.env }; delete env.VIRTUAL_ENV; delete env.CONDA_PREFIX; delete env.CONDA_DEFAULT_ENV; delete env.CONDA_PYTHON_EXE; const childProcess = spawn(pythonPath, ['-c', command], { env: { ...env, PYTHONUNBUFFERED: '1', PYTHONPATH: process.env.PYTHONPATH || process.cwd(), DART_TOKEN: process.env.DART_TOKEN, }, stdio: ['pipe', 'pipe', 'pipe'], }); let output = ''; let errorOutput = ''; childProcess.stdout?.on('data', (data) => { const str = data.toString(); console.error('[Debug] Python stdout:', str); output += str; }); childProcess.stderr?.on('data', (data) => { const str = data.toString(); console.error('[Debug] Python stderr:', str); errorOutput += str; }); childProcess.on('error', (error) => { console.error('[Debug] Python process error:', error); reject(new Error(`Failed to start Python process: ${error.message}`)); }); // Add timeout const timeout = setTimeout(() => { console.error('[Debug] Python command timed out'); childProcess.kill(); reject(new Error('Command timed out')); }, 30000); // 30 second timeout childProcess.on('close', (code) => { clearTimeout(timeout); console.error(`[Debug] Python process exited with code ${code}`); if (code === 0) { resolve(output.trim()); } else { reject(new Error(errorOutput || `Command failed with exit code ${code}`)); } }); }); }