Wallet Migration — Old Flow to Secure Keychain

Use this skill when a user already has a nansen-cli wallet set up with the old password storage method and wants to migrate to the new secure flow.

When to use

• User mentions they stored their password in ~/.nansen/.env, a .env file, or memory.md
• User gets the stderr warning: ⚠ Password loaded from insecure .credentials file
• User asks to "secure my wallet" or "migrate to keychain"
• User created a wallet before the keychain update was released

Detect current state

wallet show only displays addresses and does NOT load or check the password. To detect the actual password situation, check for stored password sources:

# 1. Check if a wallet exists at all