aws-mcp

Instructions

Implementation Reference

• index.ts:81-90 (registration)

  Registration of the 'list-credentials' tool in the ListTools response, including its input schema definition.

  {
    name: "list-credentials",
    description:
      "List all AWS credentials/configs/profiles that are configured/usable on this machine",
    inputSchema: {
      type: "object",
      properties: {},
      required: [],
    },
  },

• index.ts:166-169 (handler)

  Dispatch handler for the 'list-credentials' tool call, which returns the profiles from listCredentials() as JSON.

  } else if (name === "list-credentials") {
    return createTextResponse(
      JSON.stringify({ profiles: Object.keys(profiles), error })
    );

• index.ts:220-238 (helper)

  Helper function that loads AWS credentials and config INI files, merges them into profiles object, and returns with any error.

  async function listCredentials() {
    let credentials: any;
    let configs: any;
    let error: any;
    try {
      credentials = new AWS.IniLoader().loadFrom({});
    } catch (error) {
      error = `Failed to load credentials: ${error}`;
    }
    try {
      configs = new AWS.IniLoader().loadFrom({ isConfig: true });
    } catch (error) {
      error = `Failed to load configs: ${error}`;
    }
  
    const profiles = { ...(credentials || {}), ...(configs || {}) };
  
    return { profiles, error };
  }