Playwright MCP Server

Instructions

Implementation Reference

• src/tools/codegen/index.ts:182-202 (handler)

  Primary tool handler implementation. Defines the Tool object including schema, description, and the async handler function that invokes ActionRecorder.clearSession(sessionId) and returns success status.

  export const clearCodegenSession: Tool = {
    name: 'clear_codegen_session',
    description: 'Clear a code generation session',
    parameters: {
      type: 'object',
      properties: {
        sessionId: {
          type: 'string',
          description: 'ID of the session to clear'
        }
      },
      required: ['sessionId']
    },
    handler: async ({ sessionId }: { sessionId: string }) => {
      const success = ActionRecorder.getInstance().clearSession(sessionId);
      if (!success) {
        throw new Error(`Session ${sessionId} not found`);
      }
      return { success };
    }
  };

• src/tools/codegen/recorder.ts:72-77 (helper)

  Core clearing logic in ActionRecorder singleton. Removes the session from the internal Map and clears active session reference if matching.

  clearSession(sessionId: string): boolean {
    if (this.activeSession === sessionId) {
      this.activeSession = null;
    }
    return this.sessions.delete(sessionId);
  }

• src/toolHandler.ts:362-363 (registration)

  Tool registration in main tool handler switch statement. Routes calls to the clearCodegenSession.handler via handleCodegenResult wrapper.

  case 'clear_codegen_session':
    return await handleCodegenResult(clearCodegenSession.handler(args));

• src/tools.ts:64-77 (schema)

  Input schema definition for MCP tool registration in createToolDefinitions() function.

  {
    name: "clear_codegen_session",
    description: "Clear a code generation session without generating a test",
    inputSchema: {
      type: "object",
      properties: {
        sessionId: { 
          type: "string", 
          description: "ID of the session to clear" 
        }
      },
      required: ["sessionId"]
    }
  },

• src/tools.ts:463-468 (registration)

  Lists 'clear_codegen_session' among codegen tools for conditional handling.

  export const CODEGEN_TOOLS = [
    'start_codegen_session',
    'end_codegen_session',
    'get_codegen_session',
    'clear_codegen_session'
  ];