MCP Memory Server

Instructions

Implementation Reference

• src/index.ts:789-793 (handler)

  MCP server handler for 'start_session' tool: extracts task argument and delegates to MemoryManager.startNewSession, returns confirmation with session ID.
  case 'start_session': { const task = args.task as string; const sessionId = await this.memoryManager.startNewSession(task); return { content: [{ type: 'text', text: `Started session: ${sessionId}` }] }; }
• src/index.ts:555-565 (schema)

  Input schema definition for the 'start_session' tool: requires a 'task' string describing the coding task.
  { name: 'start_session', description: 'Start a new AI coding session with a specific task', inputSchema: { type: 'object', properties: { task: { type: 'string', description: 'Description of the task to work on' } }, required: ['task'] } },
• src/index.ts:552-778 (registration)

  Registration of all tools including 'start_session' via ListToolsRequestSchema handler.
  this.server.setRequestHandler(ListToolsRequestSchema, async () => ({ tools: [ // Memory Management Tools { name: 'start_session', description: 'Start a new AI coding session with a specific task', inputSchema: { type: 'object', properties: { task: { type: 'string', description: 'Description of the task to work on' } }, required: ['task'] } }, { name: 'add_session_step', description: 'Record completion of a step in the current session', inputSchema: { type: 'object', properties: { step: { type: 'string', description: 'Description of the completed step' }, filesModified: { type: 'array', items: { type: 'string' }, description: 'List of files that were modified' }, description: { type: 'string', description: 'Optional detailed description' } }, required: ['step', 'filesModified'] } }, { name: 'add_decision', description: 'Record an important technical decision', inputSchema: { type: 'object', properties: { key: { type: 'string', description: 'Decision key/name' }, value: { type: 'string', description: 'Decision value' }, reasoning: { type: 'string', description: 'Reasoning behind the decision' } }, required: ['key', 'value', 'reasoning'] } }, { name: 'get_project_memory', description: 'Get current project memory and session state', inputSchema: { type: 'object', properties: {} } }, // Approval Management Tools { name: 'set_file_approval', description: 'Set approval status for a file', inputSchema: { type: 'object', properties: { filePath: { type: 'string', description: 'Path to the file' }, approvalType: { type: 'string', enum: ['devApproved', 'codeReviewApproved', 'qaApproved'] }, approvedBy: { type: 'string', description: 'Who approved it' } }, required: ['filePath', 'approvalType', 'approvedBy'] } }, { name: 'get_file_approval_status', description: 'Get approval status for a file', inputSchema: { type: 'object', properties: { filePath: { type: 'string', description: 'Path to the file' } }, required: ['filePath'] } }, // Rule Engine Tools { name: 'check_before_modification', description: 'Check if a file can be modified according to AI metadata rules', inputSchema: { type: 'object', properties: { filePath: { type: 'string', description: 'Path to the file to check' } }, required: ['filePath'] } }, { name: 'get_modification_actions', description: 'Get actions that should be taken after modifying a file', inputSchema: { type: 'object', properties: { filePath: { type: 'string', description: 'Path to the file' } }, required: ['filePath'] } }, // Metadata Tools { name: 'parse_file_metadata', description: 'Parse AI metadata from a file', inputSchema: { type: 'object', properties: { filePath: { type: 'string', description: 'Path to the file' } }, required: ['filePath'] } }, { name: 'update_file_metadata', description: 'Update AI metadata in a file', inputSchema: { type: 'object', properties: { filePath: { type: 'string', description: 'Path to the file' }, updates: { type: 'object', description: 'Metadata updates to apply' } }, required: ['filePath', 'updates'] } }, { name: 'find_files_with_metadata', description: 'Find all files that contain AI metadata', inputSchema: { type: 'object', properties: { pattern: { type: 'string', description: 'File pattern to search (optional)' } } } }, // Changelog Tools { name: 'add_changelog_entry', description: 'Add an entry to the project changelog', inputSchema: { type: 'object', properties: { description: { type: 'string', description: 'Description of the change' }, filesChanged: { type: 'array', items: { type: 'string' }, description: 'Files that were changed' }, type: { type: 'string', enum: ['added', 'changed', 'deprecated', 'removed', 'fixed', 'security'] }, breakingChange: { type: 'boolean', description: 'Whether this is a breaking change' }, impact: { type: 'string', enum: ['major', 'minor', 'patch'] } }, required: ['description', 'filesChanged', 'type'] } }, { name: 'get_file_changelog', description: 'Get changelog entries for a specific file', inputSchema: { type: 'object', properties: { filePath: { type: 'string', description: 'Path to the file' } }, required: ['filePath'] } }, { name: 'get_recent_changes', description: 'Get recent changelog entries', inputSchema: { type: 'object', properties: { days: { type: 'number', description: 'Number of days to look back (default: 7)' } } } }, // Folder Mapping Tools { name: 'generate_folder_map', description: 'Generate or update a _map.md file for a specific folder', inputSchema: { type: 'object', properties: { folderPath: { type: 'string', description: 'Path to the folder to generate map for' } }, required: ['folderPath'] } }, { name: 'generate_all_folder_maps', description: 'Generate _map.md files for all folders in the project', inputSchema: { type: 'object', properties: {} } }, // Git Tools { name: 'update_last_editor', description: 'Update @last-editor field in a file with Git author information', inputSchema: { type: 'object', properties: { filePath: { type: 'string', description: 'Path to the file to update' } }, required: ['filePath'] } }, { name: 'update_all_last_editors', description: 'Update @last-editor fields in all files with Git author information', inputSchema: { type: 'object', properties: {} } }, { name: 'get_file_last_editor', description: 'Get the last editor of a file from Git history', inputSchema: { type: 'object', properties: { filePath: { type: 'string', description: 'Path to the file' } }, required: ['filePath'] } } ] }));
• src/memory-manager.ts:125-143 (helper)

  Core logic for starting a new session: generates ID, updates project memory's currentSession with task details, persists to file, and returns session ID.
  async startNewSession(task: string): Promise<string> { const memory = await this.getProjectMemory(); const sessionId = this.generateSessionId(); memory.currentSession = { sessionId, task, started: new Date().toISOString(), completedSteps: [], nextSteps: [], importantDecisions: {}, blockers: [] }; await this.saveProjectMemory(memory); console.log(chalk.blue(`🚀 Started new session: ${sessionId}`)); console.log(chalk.blue(`📋 Task: ${task}`)); return sessionId; }