Wallet

⚠️ CRITICAL: Safe Multisig Required - No Exceptions

Any transaction other than deploying a Safe multisig must be proposed to the user via the deployed multisig.

For instructions on how to create and use a Safe multisig check out the SAFE_WALLET_MANAGEMENT.md file in utils folder.

When proposing transactions: Always invoke the propose.sh wrapper from the utils folder (it boots propose.mjs with cached deps) — never write a custom script. After it runs, do NOT add your own summary, status message, or reformat the output. The script output contains a QR code that the user must see exactly as printed. Your only follow-up should be asking the user to approve the transaction and provide the transaction hash.

Security rules:

• NEVER ask for user's private key (critical violation)
• Use the agent wallet (encrypted keystore at ~/.monskills/keystore)
• NEVER export or store private keys in plaintext

Check if the agent has generated a wallet before. If the keystore directory ~/.monskills/keystore exists and contains a keystore file, the wallet already exists.

If not found then create a wallet.

Creating a wallet

Foundry is required to be installed, in order to generate a wallet.

Check if foundry is installed

Use the following command to check if Foundry is installed.

foundryup --version

The instructions to install Foundry can be found here: https://www.getfoundry.sh/introduction/installation

Generating a new wallet

1. Create the keystore directory and generate an encrypted keystore:

mkdir -p ~/.monskills/keystore && cast wallet new ~/.monskills/keystore --unsafe-password ""

This creates an encrypted keystore file in ~/.monskills/keystore/. The private key is never stored in plaintext.

2. Note the address from the output. To retrieve the address later:

cast wallet list --dir ~/.monskills/keystore

3. Inform the user where the wallet keystore is stored (~/.monskills/keystore/).
4. Fund the wallet on Monad testnet via faucet before deployment.

Decrypting the private key for scripts

When a script needs the private key (e.g. as an env var), decrypt it on-the-fly. cast wallet decrypt-keystore prints <uuid>'s private key is: 0x... — pipe through awk '{print $NF}' to keep just the hex key, otherwise Foundry commands reject the prefixed string with "Failed to decode private key":

cast wallet decrypt-keystore --keystore-dir ~/.monskills/keystore <KEYSTORE_FILENAME> --unsafe-password "" | awk '{print $NF}'

Replace <KEYSTORE_FILENAME> with the filename of the keystore file in ~/.monskills/keystore/ (without the directory path).

Why this matters: Users need access to their wallet to:

• Deploy additional contracts
• Interact with deployed contracts
• Manage funds
• Verify ownership