aws-helper MCP Server

Instructions

Implementation Reference

• src/index.ts:228-249 (handler)

  The handler function that implements the get_aws_identity tool logic: creates STSClient with env credentials, calls GetCallerIdentityCommand, and returns AWS account, UserId, and ARN.

  async function getAwsIdentity(args: { region?: string }) {
    const region = args?.region || 'ap-northeast-2';
    const credentials: AwsCredentialIdentity = {
      accessKeyId: process.env.AWS_ACCESS_KEY_ID || '',
      secretAccessKey: process.env.AWS_SECRET_ACCESS_KEY || '',
      sessionToken: process.env.AWS_SESSION_TOKEN
    };
    const client = new STSClient({
      region,
      credentials
    });
    const command = new GetCallerIdentityCommand({});
    const response = await client.send(command);
    return {
      content: [
        {
          type: 'text',
          text: `AWS 계정 정보\n\n• Account: ${response.Account}\n• UserId: ${response.UserId}\n• Arn: ${response.Arn}`
        }
      ]
    };
  }

• src/index.ts:69-82 (registration)

  Registration of the get_aws_identity tool in the ListTools response, including name, description, and input schema.

  {
    name: 'get_aws_identity',
    description: '현재 MCP 서버가 사용하는 AWS 자격증명의 계정/사용자/Role 정보를 반환합니다',
    inputSchema: {
      type: 'object',
      properties: {
        region: {
          type: 'string',
          description: 'AWS 리전 (기본값: ap-northeast-2)',
          default: 'ap-northeast-2'
        }
      }
    }
  }

• src/index.ts:99-100 (registration)

  Dispatcher case in the CallToolRequestHandler switch statement that routes calls to the getAwsIdentity handler.

  case 'get_aws_identity':
    return await getAwsIdentity((args ?? {}) as { region?: string });

• src/index.ts:72-81 (schema)

  Input schema definition for the get_aws_identity tool, specifying optional region parameter.

  inputSchema: {
    type: 'object',
    properties: {
      region: {
        type: 'string',
        description: 'AWS 리전 (기본값: ap-northeast-2)',
        default: 'ap-northeast-2'
      }
    }
  }