AWS MCP Server

Instructions

Implementation Reference

• src/index.ts:2009-2019 (handler)

  Handler function for 'list_web_acls' tool. Executes ListWebACLsCommand using WAFV2Client based on scope (REGIONAL or CLOUDFRONT), maps and returns Web ACL details.

  if (name === "list_web_acls") {
      const scope = (args as any)?.scope || "REGIONAL";
      const command = new ListWebACLsCommand({ Scope: scope });
      const response = await wafv2Client.send(command);
      const acls = response.WebACLs?.map(acl => ({
          Name: acl.Name,
          Id: acl.Id,
          ARN: acl.ARN,
          Description: acl.Description
      })) || [];
      return { content: [{ type: "text", text: JSON.stringify(acls, null, 2) }] };

• src/index.ts:607-619 (registration)

  Registration of 'list_web_acls' tool in ListToolsResponse, including name, description, and input schema for scope.

      name: "list_web_acls",
      description: "Lists Web ACLs (Global/CloudFront or Regional).",
      inputSchema: {
          type: "object",
          properties: {
              scope: {
                  type: "string",
                  enum: ["CLOUDFRONT", "REGIONAL"],
                  description: "The scope of the Web ACLs (default: REGIONAL)."
              }
          }
      }
  },

• src/index.ts:609-618 (schema)

  Input schema for 'list_web_acls' tool defining optional 'scope' parameter.

  inputSchema: {
      type: "object",
      properties: {
          scope: {
              type: "string",
              enum: ["CLOUDFRONT", "REGIONAL"],
              description: "The scope of the Web ACLs (default: REGIONAL)."
          }
      }
  }

• src/index.ts:68-68 (helper)

  Initialization of WAFV2Client used by the list_web_acls handler.

  const wafv2Client = new WAFV2Client({});

• src/index.ts:34-34 (helper)

  Import of WAFV2Client and ListWebACLsCommand required for the tool.

  import { WAFV2Client, ListWebACLsCommand, GetSampledRequestsCommand, ListIPSetsCommand, GetIPSetCommand } from "@aws-sdk/client-wafv2";