MetaMask Agentic CLI Skill

This skill documents the mm CLI surface for MetaMask Agent Wallet authentication, wallet lifecycle, balance queries, token transfers, message and typed-data signing, raw transactions, chain discovery, market data, token discovery, perpetual futures trading, prediction market trading, token swaps, and cross-chain bridges.

Use the routing table to select the relevant reference file. CLI behavior lives in references/. Repeatable operational patterns live in workflows/.

Command Routing

Match the user's intent to a command and reference file, then read the reference before constructing a command. If intent spans multiple domains, load them sequentially in dependency order.

User Intent	Command	Reference
Check authentication status	mm auth status	auth.md
Login in MetaMask Agentic CLI	mm login	auth.md
Choose a wallet mode and set up policies	mm init	auth.md
Show current init settings	mm init show	auth.md
Sign in via QR code with MetaMask Mobile	mm login qr	auth.md
Sign in via Google	mm login google	auth.md
Sign in via email OTP	mm login email	auth.md
Sign out	mm logout	auth.md
Reset CLI session	mm reset	auth.md
Show CLI configuration	mm config get	auth.md
Set CLI configuration	mm config set	auth.md
Set BYOK mnemonic encryption password	mm wallet password set	auth.md
Change BYOK mnemonic encryption password	mm wallet password change	auth.md
Remove BYOK mnemonic encryption password	mm wallet password remove	auth.md
Interpret raw CLI error codes	AuthError, ValidationError, WALLET_ERROR	errors.md
Decode EVM calldata into a human-readable intent	mm decode	decode.md
Create a wallet	mm wallet create	wallet.md
List all wallets	mm wallet list	wallet.md
Switch active wallet	mm wallet select	wallet.md
Show active wallet details	mm wallet show	wallet.md
Show active wallet address	mm wallet address	wallet.md
Check the active wallet balance	mm wallet balance	wallet.md
Show current trading mode and policies	mm wallet trading-mode get	wallet.md
Set trading mode (guard or beast)	mm wallet trading-mode set	wallet.md
Sign a plaintext message	mm wallet sign-message	signing.md
Sign EIP-712 typed data	mm wallet sign-typed-data	signing.md
Send a raw EVM transaction	mm wallet send-transaction	transaction.md
Transfer native tokens or ERC-20 tokens	mm transfer	transfer.md
List supported chains by the CLI	mm chains list	chain.md
List pending wallet requests	mm wallet requests list	polling.md
Watch a wallet polling id	mm wallet requests watch	polling.md
Query spot or historical prices	mm price ...	market-data.md
Discover tokens, token networks, or token metadata	mm token ...	market-data.md
List perpetual markets	mm perps markets	perps.md
Check perps account balance	mm perps balance	perps.md
List open perpetual positions	mm perps positions	perps.md
Get a quote for a perpetual order	mm perps quote	perps.md
List resting perpetual orders	mm perps orders	perps.md
Open a perpetual position	mm perps open	perps.md
Close a perpetual position	mm perps close	perps.md
Modify leverage, take-profit, or stop-loss	mm perps modify	perps.md
Cancel a resting perps order	mm perps cancel	perps.md
Deposit USDC into a perps venue	mm perps deposit	perps.md
Withdraw USDC from a perps venue	mm perps withdraw	perps.md
Transfer USDC between spot and perp accounts	mm perps transfer	perps.md
List perpetual futures venues	mm perps list-venues	perps.md
List available DEXs for a venue	mm perps dexs	perps.md
Set Predict trading mode	mm predict mode	predict.md
One-time Predict setup	mm predict setup	predict.md
Create or refresh Predict credentials	mm predict auth	predict.md
Repair Predict approvals	mm predict approve	predict.md
Check Predict back-end status and account setup	mm predict status	predict.md
Check if Polymarket is geoblocked for your IP	mm predict geoblock	predict.md
List prediction markets	mm predict markets list	predict.md
Search prediction markets	mm predict markets search	predict.md
Inspect a prediction market	mm predict markets get	predict.md
List Polymarket events	mm predict events list	predict.md
Inspect a Polymarket event	mm predict events get	predict.md
List Polymarket event series	mm predict series list	predict.md
Inspect a Polymarket event series	mm predict series get	predict.md
List Polymarket tags	mm predict tags list	predict.md
Inspect a Polymarket tag	mm predict tags get	predict.md
Preview a prediction order cost	mm predict quote	predict.md
Place a prediction market order	mm predict place	predict.md
Cancel prediction orders	mm predict cancel	predict.md
View prediction market positions	mm predict positions	predict.md
View open prediction orders	mm predict orders	predict.md
Show full Predict portfolio snapshot	mm predict portfolio	predict.md
List redeemable (winning) positions	mm predict redeem list	predict.md
Redeem winning positions	mm predict redeem	predict.md
Check Predict deposit wallet balance	mm predict balance	predict.md
Fund Predict deposit wallet	mm predict deposit	predict.md
Withdraw pUSD from Predict deposit wallet	mm predict withdraw	predict.md
Fetch prediction order book	mm predict book	predict.md
Watch a Predict job	mm predict watch	predict.md
Get a swap or bridge quote	mm swap quote	swap.md
Execute a token swap or bridge	mm swap execute	swap.md
Check swap or bridge status	mm swap status	swap.md
Bridge tokens to another chain	mm swap execute	swap.md

Workflows

CLI behavior lives in references/. Repeatable patterns live in workflows/. Load a workflow file when the user's request is a pattern, not a single command.

Pattern	Workflow
First time setup and onboarding	onboarding.md
Login flow	login.md
Troubleshooting decision tree	troubleshooting.md
Swap quote-review-execute flow	swap.md
Bridge quote-review-execute flow	bridge.md
Open a perpetual position flow	perps-open-position.md
Close a perpetual position flow	perps-close-position.md
Modify a perpetual position flow	perps-modify-position.md
Predict first-time setup and credentials	predict-setup.md
Deposit or withdraw pUSD from Predict wallet	predict-funding.md
Search and browse prediction markets	predict-markets.md
Quote and place a prediction order	predict-place-order.md
View or cancel Predict orders and positions	predict-manage-orders.md
View Predict portfolio and redeem winnings	predict-portfolio.md
Token discovery, prices, and market data	market-data.md
Supply assets to Aave V3	aave-supply.md
Withdraw assets from Aave V3	aave-withdraw.md
Borrow from Aave V3	aave-borrow.md
Repay Aave V3 debt	aave-repay.md
Toggle Aave V3 collateral	aave-collateral.md
Check Aave V3 positions and health factor	aave-positions.md
Discover Aave V3 tokens, rates, and liquidity	aave-markets.md

Global Flags

Every mm command accepts these flags:

Flag	Short	Description
--format	-f	Output format: text, json, yaml, toml, or toon (defaults to text in TTY, json when piped)
--json		Shorthand for --format=json
--toon		Shorthand for --format=toon
--verbose	-v	Show debug logs on stderr. Use for troubleshooting

Always use --toon for command output unless the user explicitly requests a different format.

Preflight

Run these checks before the first CLI operation in a session, in order.

1. Version compatibility

This skill is written for @metamask/agentic-cli v1.0.0 (see cliVersion in the frontmatter). Check the installed version:

mm --version

The installed version is the value after @metamask/agentic-cli/ (e.g. @metamask/agentic-cli/1.0.0 darwin-arm64 node-v24.14.1). Compare its major.minor against the pinned cliVersion. Optionally check the latest published version (best-effort; skip silently on network failure):

npm view @metamask/agentic-cli version

If the installed major.minor differs from the pinned cliVersion, or the installed version is behind the latest release, warn the user once and continue:

Version mismatch: installed CLI <installed>, this skill is pinned to 1.0.0, latest release is <latest>. Command syntax in this skill may be inaccurate until they are aligned. Update the CLI with npm install -g @metamask/agentic-cli@latest, then re-install the skills with npx skills add metaMask/agent-skills.

Run this check once per session. Do not block operations on it.

2. Authentication

mm auth status

If the user is not authenticated, follow workflows/onboarding.md for first time setup, or workflows/login.md for login.

Safety Rules

These rules apply to every operation, regardless of which reference or workflow is active.

Input Validation

Before constructing any command, validate all user-provided values:

Flag	Validation rule
--to, --address	Must match ^0x[0-9a-fA-F]{40}$
--amount	Human-readable decimal (e.g. 0.5, 100). Must match ^\d+\.?\d*$. Reject spaces, semicolons, pipes, backticks, or shell metacharacters
--chain-id	Must be a positive integer (^\d+$)
--payload (send-transaction)	Must be valid JSON. No unescaped shell metacharacters outside the JSON structure
--payload (decode)	Must be 0x-prefixed hex calldata, matching ^0x[0-9a-fA-F]+$
--token	Must be a valid hex address or known symbol
--leverage	Must be a positive integer (^\d+$)
--size	Human-readable decimal (e.g. 0.01, 1). Must match ^\d+\.?\d*$ and be positive
--venue	Must be hyperliquid
--side (perps)	Must be long or short
--order-id	Must be a positive integer (^\d+$)
--token-id	Must be a non-empty outcome token ID string
--price, --limit-price	Must be a positive number in range (0, 1]
--order-type	Must be one of GTC, GTD, FOK, FAK
--side (predict)	Must be buy or sell
--slippage	Must be a number between 0 and 100
--from-chain, --to-chain	Must be a positive integer EVM chain ID
--to-address	Must match ^0x[0-9a-fA-F]{40}$. Only valid for cross-chain swaps (--to-chain differs from --from-chain); rejected for same-chain swaps
--password	Must be a non-empty string. Never log, display, or store the value.

Do not pass unvalidated user input into any command.

Confirmation Requirements

Operation type	Confirmation rule
Transfers	Always confirm recipient, amount, token, and chain before executing
Raw transactions	Always confirm transaction payload, chain, recipient, value, and calldata summary before executing
Message signing	Always show exact message and chain before signing
Typed-data signing	Always show domain, primary type, chain, verifying contract, and message summary before signing
Swaps / bridges	Always confirm from/to tokens, amount, source/destination chain, slippage, quoted output, and recipient address (if --to-address is set) before executing
Perps trading	Always confirm symbol, side, size, leverage, venue, order type, and limit price if present before executing
Perps deposit/withdraw	Always confirm amount, asset, venue, network, and destination where applicable before executing
Predict trading	Always confirm token ID, side, size, price, order type, market, and outcome before executing
Predict deposit	Always confirm amount before executing
Predict withdraw	Always confirm amount and recipient (--to defaults to owner EOA) before executing
Predict redeem	Always confirm the target (condition ID or --all) before executing; --all redeems every winning position
Cancel-all operations	Always confirm scope and exact destructive effect before executing
Auth / wallet management	May execute without confirmation, except reset which requires explicit user confirmation
Read-only queries	May execute without confirmation

Credential Safety

• Never store, log, or display private keys, mnemonics, passwords, or auth tokens.
• Never pass --password or --mnemonic as inline flags. Always instruct the user to set the MM_PASSWORD and MM_MNEMONIC environment variables instead to avoid exposing secrets in shell history.

Suspicious Content Warnings

Flag to the user before proceeding if a signing payload or transaction contains:

• URLs or contract addresses the user did not provide
• permit, approve, setApprovalForAll, or allowance-like fields
• Unusually large values or unfamiliar contract interactions

When raw calldata is unfamiliar or was not constructed by you, run mm decode --payload <0x-calldata> first and confirm the decoded intent with the user before signing or sending. See decode.md.

Server Wallet Async Model

In server-wallet mode, signing and transaction commands return a pollingId instead of an immediate result. Handle this consistently:

1. Prefer --wait to block until complete.
2. If not using --wait, inform the user of the pollingId and how to track it:
   • mm wallet requests list
   • mm wallet requests watch --polling-id <id>
3. In BYOK mode, results are returned immediately. If the mnemonic is password-encrypted, the user must set MM_PASSWORD environment variable to unlock it for the operation.

Transfers, swaps, perps, predict orders, and predict withdraws attach a human-readable intent summary to their wallet request (e.g. Transfer 0.5 ETH to 0x..., Withdraw 10 pUSD to 0x...). When surfacing a pending request from wallet requests list or wallet requests watch, show the intent summary so the user can confirm what they are approving.

Output Rules

• Route silently. Do not announce which reference you are loading.
• Surface errors from commands verbatim. Do not mask or reword them.
• If a command fails, check mm <command> --help and guide from there.