feat: introduces the new home for the social controllers (#8321)

## Explanation

This PR adds a new package @metamask/social-controllers to serve as the
home for social related controllers (e.g. leaderboard and
follow-trading).
Subsequent PRs will add the actual controllers implementations.

Added team-social-ai as the owner in teams.json
Updated .github/CODEOWNERS

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## References

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## Checklist

- [ ] I've updated the test suite for new or updated code as appropriate
- [ ] I've updated documentation (JSDoc, Markdown, etc.) for new or
updated code as appropriate
- [ ] I've communicated my changes to consumers by [updating changelogs
for packages I've
changed](https://github.com/MetaMask/core/tree/main/docs/processes/updating-changelogs.md)
- [ ] I've introduced [breaking
changes](https://github.com/MetaMask/core/tree/main/docs/processes/breaking-changes.md)
in this PR and have prepared draft pull requests for clients and
consumer packages to resolve them

<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> **Low Risk**
> Low risk: adds a new package scaffold and updates repo metadata/build
references, with no production logic changes beyond a placeholder export
and test.
> 
> **Overview**
> Introduces a new `@metamask/social-controllers` package as the new
home for social-related controllers, including initial TS
build/test/docs configuration and a placeholder `greeter` export with a
Jest test.
> 
> Wires the package into the monorepo by updating root `tsconfig`
references, `yarn.lock`, the root `README` package list/dependency
graph, and adds ownership metadata in `.github/CODEOWNERS` and
`teams.json` (owned by `@MetaMask/social-ai`).
> 
> <sup>Written by [Cursor
Bugbot](https://cursor.com/dashboard?tab=bugbot) for commit
6b0e623. This will update automatically
on new commits. Configure
[here](https://cursor.com/dashboard?tab=bugbot).</sup>
<!-- /CURSOR_SUMMARY -->

Author: Bigshmow

.github/CODEOWNERS

@@ -41,6 +41,7 @@
 
 ## Social AI Team
 /packages/ai-controllers                    @MetaMask/social-ai
+/packages/social-controllers                @MetaMask/social-ai
 
 ## Ramp Team
 /packages/ramps-controller                  @MetaMask/ramp
@@ -219,3 +220,5 @@
 /packages/ai-controllers/CHANGELOG.md @MetaMask/social-ai @MetaMask/core-platform
 /packages/client-controller/package.json @MetaMask/core-platform @MetaMask/extension-platform @MetaMask/mobile-platform
 /packages/client-controller/CHANGELOG.md @MetaMask/core-platform @MetaMask/extension-platform @MetaMask/mobile-platform
+/packages/social-controllers/package.json @MetaMask/social-ai @MetaMask/core-platform
+/packages/social-controllers/CHANGELOG.md @MetaMask/social-ai @MetaMask/core-platform

README.md

@@ -89,6 +89,7 @@ Each package in this repository has its own README where you can find installati
 - [`@metamask/selected-network-controller`](packages/selected-network-controller)
 - [`@metamask/shield-controller`](packages/shield-controller)
 - [`@metamask/signature-controller`](packages/signature-controller)
+- [`@metamask/social-controllers`](packages/social-controllers)
 - [`@metamask/storage-service`](packages/storage-service)
 - [`@metamask/subscription-controller`](packages/subscription-controller)
 - [`@metamask/transaction-controller`](packages/transaction-controller)
@@ -172,6 +173,7 @@ linkStyle default opacity:0.5
   selected_network_controller(["@metamask/selected-network-controller"]);
   shield_controller(["@metamask/shield-controller"]);
   signature_controller(["@metamask/signature-controller"]);
+  social_controllers(["@metamask/social-controllers"]);
   storage_service(["@metamask/storage-service"]);
   subscription_controller(["@metamask/subscription-controller"]);
   transaction_controller(["@metamask/transaction-controller"]);
@@ -238,7 +240,10 @@ linkStyle default opacity:0.5
   assets_controllers --> transaction_controller;
   base_controller --> messenger;
   base_controller --> json_rpc_engine;
+  base_data_service --> controller_utils;
+  base_data_service --> messenger;
   bridge_controller --> accounts_controller;
+  bridge_controller --> assets_controller;
   bridge_controller --> assets_controllers;
   bridge_controller --> base_controller;
   bridge_controller --> controller_utils;
@@ -256,6 +261,7 @@ linkStyle default opacity:0.5
   bridge_status_controller --> bridge_controller;
   bridge_status_controller --> controller_utils;
   bridge_status_controller --> gas_fee_controller;
+  bridge_status_controller --> keyring_controller;
   bridge_status_controller --> network_controller;
   bridge_status_controller --> polling_controller;
   bridge_status_controller --> profile_sync_controller;
@@ -264,8 +270,8 @@ linkStyle default opacity:0.5
   chain_agnostic_permission --> permission_controller;
   claims_controller --> base_controller;
   claims_controller --> controller_utils;
-  claims_controller --> messenger;
   claims_controller --> keyring_controller;
+  claims_controller --> messenger;
   claims_controller --> profile_sync_controller;
   client_controller --> base_controller;
   client_controller --> messenger;
@@ -327,6 +333,7 @@ linkStyle default opacity:0.5
   gator_permissions_controller --> messenger;
   gator_permissions_controller --> transaction_controller;
   geolocation_controller --> base_controller;
+  geolocation_controller --> controller_utils;
   geolocation_controller --> messenger;
   json_rpc_middleware_stream --> json_rpc_engine;
   keyring_controller --> base_controller;
@@ -341,6 +348,7 @@ linkStyle default opacity:0.5
   multichain_account_service --> base_controller;
   multichain_account_service --> keyring_controller;
   multichain_account_service --> messenger;
+  multichain_account_service --> controller_utils;
   multichain_api_middleware --> chain_agnostic_permission;
   multichain_api_middleware --> controller_utils;
   multichain_api_middleware --> json_rpc_engine;
@@ -391,6 +399,13 @@ linkStyle default opacity:0.5
   perps_controller --> base_controller;
   perps_controller --> controller_utils;
   perps_controller --> messenger;
+  perps_controller --> account_tree_controller;
+  perps_controller --> geolocation_controller;
+  perps_controller --> keyring_controller;
+  perps_controller --> network_controller;
+  perps_controller --> profile_sync_controller;
+  perps_controller --> remote_feature_flag_controller;
+  perps_controller --> transaction_controller;
   phishing_controller --> base_controller;
   phishing_controller --> controller_utils;
   phishing_controller --> messenger;
@@ -399,8 +414,6 @@ linkStyle default opacity:0.5
   polling_controller --> controller_utils;
   polling_controller --> network_controller;
   preferences_controller --> base_controller;
-  preferences_controller --> controller_utils;
-  preferences_controller --> keyring_controller;
   preferences_controller --> messenger;
   profile_metrics_controller --> accounts_controller;
   profile_metrics_controller --> base_controller;
@@ -419,6 +432,7 @@ linkStyle default opacity:0.5
   ramps_controller --> messenger;
   rate_limit_controller --> base_controller;
   rate_limit_controller --> messenger;
+  react_data_query --> base_data_service;
   remote_feature_flag_controller --> base_controller;
   remote_feature_flag_controller --> controller_utils;
   remote_feature_flag_controller --> messenger;
@@ -466,6 +480,7 @@ linkStyle default opacity:0.5
   transaction_controller --> remote_feature_flag_controller;
   transaction_controller --> eth_block_tracker;
   transaction_controller --> eth_json_rpc_provider;
+  transaction_pay_controller --> assets_controller;
   transaction_pay_controller --> assets_controllers;
   transaction_pay_controller --> base_controller;
   transaction_pay_controller --> bridge_controller;
@@ -474,6 +489,7 @@ linkStyle default opacity:0.5
   transaction_pay_controller --> gas_fee_controller;
   transaction_pay_controller --> messenger;
   transaction_pay_controller --> network_controller;
+  transaction_pay_controller --> ramps_controller;
   transaction_pay_controller --> remote_feature_flag_controller;
   transaction_pay_controller --> transaction_controller;
   user_operation_controller --> approval_controller;

packages/social-controllers/CHANGELOG.md

@@ -0,0 +1,14 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [Unreleased]
+
+### Added
+
+- Initial release ([#8321](https://github.com/MetaMask/core/pull/8321))
+
+[Unreleased]: https://github.com/MetaMask/core/

packages/social-controllers/LICENSE

@@ -0,0 +1,20 @@
+MIT License
+
+Copyright (c) 2026 MetaMask
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE

packages/social-controllers/README.md

@@ -0,0 +1,15 @@
+# `@metamask/social-controllers`
+
+A collection of social related controllers
+
+## Installation
+
+`yarn add @metamask/social-controllers`
+
+or
+
+`npm install @metamask/social-controllers`
+
+## Contributing
+
+This package is part of a monorepo. Instructions for contributing can be found in the [monorepo README](https://github.com/MetaMask/core#readme).

packages/social-controllers/jest.config.js

@@ -0,0 +1,26 @@
+/*
+ * For a detailed explanation regarding each configuration property and type check, visit:
+ * https://jestjs.io/docs/configuration
+ */
+
+const merge = require('deepmerge');
+const path = require('path');
+
+const baseConfig = require('../../jest.config.packages');
+
+const displayName = path.basename(__dirname);
+
+module.exports = merge(baseConfig, {
+  // The display name when running multiple projects
+  displayName,
+
+  // An object that configures minimum threshold enforcement for coverage results
+  coverageThreshold: {
+    global: {
+      branches: 100,
+      functions: 100,
+      lines: 100,
+      statements: 100,
+    },
+  },
+});

packages/social-controllers/package.json

@@ -0,0 +1,67 @@
+{
+  "name": "@metamask/social-controllers",
+  "version": "0.0.0",
+  "description": "A collection of social related controllers",
+  "keywords": [
+    "MetaMask",
+    "Ethereum"
+  ],
+  "homepage": "https://github.com/MetaMask/core/tree/main/packages/social-controllers#readme",
+  "bugs": {
+    "url": "https://github.com/MetaMask/core/issues"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/MetaMask/core.git"
+  },
+  "license": "MIT",
+  "sideEffects": false,
+  "exports": {
+    ".": {
+      "import": {
+        "types": "./dist/index.d.mts",
+        "default": "./dist/index.mjs"
+      },
+      "require": {
+        "types": "./dist/index.d.cts",
+        "default": "./dist/index.cjs"
+      }
+    },
+    "./package.json": "./package.json"
+  },
+  "main": "./dist/index.cjs",
+  "types": "./dist/index.d.cts",
+  "files": [
+    "dist/"
+  ],
+  "scripts": {
+    "build": "ts-bridge --project tsconfig.build.json --verbose --clean --no-references",
+    "build:all": "ts-bridge --project tsconfig.build.json --verbose --clean",
+    "build:docs": "typedoc",
+    "changelog:update": "../../scripts/update-changelog.sh @metamask/social-controllers",
+    "changelog:validate": "../../scripts/validate-changelog.sh @metamask/social-controllers",
+    "since-latest-release": "../../scripts/since-latest-release.sh",
+    "test": "NODE_OPTIONS=--experimental-vm-modules jest --reporters=jest-silent-reporter",
+    "test:clean": "NODE_OPTIONS=--experimental-vm-modules jest --clearCache",
+    "test:verbose": "NODE_OPTIONS=--experimental-vm-modules jest --verbose",
+    "test:watch": "NODE_OPTIONS=--experimental-vm-modules jest --watch"
+  },
+  "devDependencies": {
+    "@metamask/auto-changelog": "^3.4.4",
+    "@ts-bridge/cli": "^0.6.4",
+    "@types/jest": "^29.5.14",
+    "deepmerge": "^4.2.2",
+    "jest": "^29.7.0",
+    "ts-jest": "^29.2.5",
+    "typedoc": "^0.25.13",
+    "typedoc-plugin-missing-exports": "^2.0.0",
+    "typescript": "~5.3.3"
+  },
+  "engines": {
+    "node": "^18.18 || >=20"
+  },
+  "publishConfig": {
+    "access": "public",
+    "registry": "https://registry.npmjs.org/"
+  }
+}

packages/social-controllers/src/index.test.ts

@@ -0,0 +1,9 @@
+import greeter from '.';
+
+describe('Test', () => {
+  it('greets', () => {
+    const name = 'Huey';
+    const result = greeter(name);
+    expect(result).toBe('Hello, Huey!');
+  });
+});

packages/social-controllers/src/index.ts

@@ -0,0 +1,9 @@
+/**
+ * Example function that returns a greeting for the given name.
+ *
+ * @param name - The name to greet.
+ * @returns The greeting.
+ */
+export default function greeter(name: string): string {
+  return `Hello, ${name}!`;
+}

packages/social-controllers/tsconfig.build.json

@@ -0,0 +1,10 @@
+{
+  "extends": "../../tsconfig.packages.build.json",
+  "compilerOptions": {
+    "baseUrl": "./",
+    "outDir": "./dist",
+    "rootDir": "./src"
+  },
+  "references": [],
+  "include": ["../../types", "./src"]
+}