Add catch-all email group and platform filtering (#3)

- Add catch-all email group with admin-adam@modelcontextprotocol.io
- Add onlyOnPlatforms configuration to restrict groups to specific platforms
- Set antitrust and catch-all groups to Google only
- Groups default to all platforms when onlyOnPlatforms is not specified

src/config/groups.ts

@@ -5,6 +5,9 @@ import { defineGroups } from './utils';
 //
 // Email groups (isEmailGroup: true) accept emails from anyone (including external users)
 // and notify group members for each email.
+//
+// Groups are created on all platforms (GitHub and Google) by default.
+// To limit a group to specific platforms, set the onlyOnPlatforms array (e.g., onlyOnPlatforms: ['google']).
 export const GROUPS = defineGroups([
   {
     name: 'test-parent',
@@ -24,5 +27,12 @@ export const GROUPS = defineGroups([
     name: 'antitrust',
     description: 'Antitrust compliance contacts',
     isEmailGroup: true,
+    onlyOnPlatforms: ['google'],
+  },
+  {
+    name: 'catch-all',
+    description: 'Catch-all email group',
+    isEmailGroup: true,
+    onlyOnPlatforms: ['google'],
   },
 ] as const);

src/config/users.ts

@@ -6,6 +6,10 @@ export const MEMBERS: readonly Member[] = [
     email: 'adam@modelcontextprotocol.io',
     memberOf: ['test-child'],
   },
+  {
+    email: 'adamj@anthropic.com',
+    memberOf: ['catch-all'],
+  },
   {
     email: 'davidsp@anthropic.com',
     memberOf: ['antitrust'],

src/config/utils.ts

@@ -4,12 +4,15 @@ function isValidGroupName(name: string): boolean {
   return /^[a-z][a-z0-9-]*[a-z]$/.test(name);
 }
 
+export type Platform = 'github' | 'google';
+
 export function defineGroups<
   const T extends readonly {
     name: Lowercase<string>;
     description: string;
     memberOf?: readonly (T[number]['name'])[];
     isEmailGroup?: boolean;
+    onlyOnPlatforms?: readonly Platform[];
   }[]
 >(groups: T) {
   for (const group of groups) {
@@ -30,6 +33,7 @@ export interface Group {
   description: string;
   memberOf?: readonly GroupKey[];
   isEmailGroup?: boolean;
+  onlyOnPlatforms?: readonly Platform[];
 }
 
 export interface Member {

src/github.ts

@@ -6,6 +6,9 @@ import { MEMBERS } from './config/users';
 const teams: Record<string, github.Team> = {};
 
 GROUPS.forEach((group: Group) => {
+  // Skip groups that don't include github in their platforms
+  if (group.onlyOnPlatforms && !group.onlyOnPlatforms.includes('github')) return;
+
   teams[group.name] = new github.Team(group.name, {
     name: group.name,
     description: group.description + ' \n(Managed by github.com/modelcontextprotocol/access)',

src/google.ts

@@ -6,6 +6,9 @@ import { MEMBERS } from './config/users';
 const groups: Record<string, gworkspace.Group> = {};
 
 GROUPS.forEach((group: Group) => {
+  // Skip groups that don't include google in their platforms
+  if (group.onlyOnPlatforms && !group.onlyOnPlatforms.includes('google')) return;
+
   groups[group.name] = new gworkspace.Group(group.name, {
     email: `${group.name}@modelcontextprotocol.io`,
     name: group.name,