Playwright MCP Server

Instructions

Implementation Reference

• src/tools/codegen/index.ts:163-183 (handler)

  The core handler implementation for the 'get_codegen_session' tool. It retrieves the codegen session by ID from the ActionRecorder instance and returns it, or throws an error if not found.

  export const getCodegenSession: Tool = {
    name: "get_codegen_session",
    description: "Get information about a code generation session",
    parameters: {
      type: "object",
      properties: {
        sessionId: {
          type: "string",
          description: "ID of the session to retrieve",
        },
      },
      required: ["sessionId"],
    },
    handler: async ({ sessionId }: { sessionId: string }) => {
      const session = ActionRecorder.getInstance().getSession(sessionId);
      if (!session) {
        throw new Error(`Session ${sessionId} not found`);
      }
      return session;
    },
  };

• src/toolHandler.ts:336-337 (registration)

  Registration and dispatch logic in the main tool handler switch statement, which calls the getCodegenSession.handler function.

  case "get_codegen_session":
    return await handleCodegenResult(getCodegenSession.handler(args));

• src/tools.ts:50-62 (schema)

  Input schema definition for the 'get_codegen_session' tool used in MCP tool definitions.

  {
    name: "get_codegen_session",
    description: "Get information about a code generation session",
    inputSchema: {
      type: "object",
      properties: {
        sessionId: { 
          type: "string", 
          description: "ID of the session to retrieve" 
        }
      },
      required: ["sessionId"]
    }

• src/tools.ts:438-441 (registration)

  The tool is listed in the CODEGEN_TOOLS array for categorization and conditional handling.

  'start_codegen_session',
  'end_codegen_session',
  'get_codegen_session',
  'clear_codegen_session'