This monorepo is a collection of packages used across multiple MetaMask clients (e.g. metamask-extension, metamask-mobile).
See the Contributor Documentation for help on:
- Setting up your development environment
- Working with the monorepo
- Testing changes in clients
- Issuing new releases
- Creating a new package
Each package in this repository has its own README where you can find installation and usage instructions. See packages/ for more.
This repo can install MetaMask agent skills for Claude, Cursor, and Codex/OpenAI.
yarn setup keeps the public MetaMask/skills
cache available through the shared @metamask/skills CLI. Run yarn skills any
time to install or refresh the gitignored generated skills under .claude/skills/,
.cursor/rules/, and .agents/skills/.
By default, all stable skills that support Core are installed when you run yarn skills.
Set SKILLS_AUTO_UPDATE=1 to opt into best-effort regeneration during setup. The shared package keeps sync/cache behavior uniform with Mobile and Extension.
To persist a local selection, copy .skills.local.example to .skills.local and
set values such as SKILLS_DOMAINS=perps.
yarn skills # refresh default stable Core skills
yarn skills --domain perps # install only the perps domain
yarn skills --select # interactively choose domains
yarn skills --reset # clear saved local selection@metamask/account-tree-controller@metamask/accounts-controller@metamask/address-book-controller@metamask/advanced-chart-core@metamask/ai-controllers@metamask/analytics-controller@metamask/analytics-data-regulation-controller@metamask/announcement-controller@metamask/app-metadata-controller@metamask/approval-controller@metamask/assets-controller@metamask/assets-controllers@metamask/authenticated-user-storage@metamask/base-controller@metamask/base-data-service@metamask/bitcoin-regtest-up@metamask/bridge-controller@metamask/bridge-status-controller@metamask/build-utils@metamask/byte-utils@metamask/chain-agnostic-permission@metamask/chomp-api-service@metamask/claims-controller@metamask/client-controller@metamask/client-utils@metamask/compliance-controller@metamask/composable-controller@metamask/config-registry-controller@metamask/connectivity-controller@metamask/controller-utils@metamask/core-backend@metamask/cryptography@metamask/delegation-controller@metamask/earn-controller@metamask/eip-5792-middleware@metamask/eip-7702-internal-rpc-middleware@metamask/eip1193-permission-middleware@metamask/error-utils@metamask/eth-block-tracker@metamask/eth-json-rpc-middleware@metamask/eth-json-rpc-provider@metamask/foundryup@metamask/gas-fee-controller@metamask/gator-permissions-controller@metamask/geolocation-controller@metamask/java-tron-up@metamask/json-rpc-engine@metamask/json-rpc-middleware-stream@metamask/keyring-controller@metamask/kyc-controller@metamask/local-node-utils@metamask/logging-controller@metamask/marketing-consent-controller@metamask/message-manager@metamask/messenger@metamask/messenger-cli@metamask/mfa-recovery-controller@metamask/money-account-api-data-service@metamask/money-account-balance-service@metamask/money-account-controller@metamask/money-account-mfa-whitelist@metamask/money-account-upgrade-controller@metamask/money-account-utils@metamask/multichain-account-service@metamask/multichain-api-middleware@metamask/multichain-network-controller@metamask/multichain-transactions-controller@metamask/name-controller@metamask/network-connection-banner-controller@metamask/network-controller@metamask/network-enablement-controller@metamask/node-utils@metamask/notification-services-controller@metamask/passkey-controller@metamask/permission-controller@metamask/permission-log-controller@metamask/perps-controller@metamask/phishing-controller@metamask/platform-api-docs@metamask/polling-controller@metamask/preferences-controller@metamask/profile-controller@metamask/profile-metrics-controller@metamask/profile-sync-controller@metamask/ramps-controller@metamask/rate-limit-controller@metamask/react-data-query@metamask/remote-feature-flag-controller@metamask/sample-controllers@metamask/seedless-onboarding-controller@metamask/selected-network-controller@metamask/sentinel-api-service@metamask/shield-controller@metamask/signature-controller@metamask/smart-transactions-controller@metamask/snap-account-service@metamask/social-controllers@metamask/solana-test-validator-up@metamask/stellar-quickstart-up@metamask/storage-service@metamask/subscription-controller@metamask/transaction-controller@metamask/transaction-pay-controller@metamask/transaction-pay-middleware@metamask/type-utils@metamask/user-operation-controller@metamask/utils@metamask/wallet@metamask/watch-only-account-service
(This section may be regenerated at any time by running yarn update-readme-content.)