smart-accounts-kit

## Quick Reference

This skill file provides quick access to the MetaMask Smart Accounts Kit v0.3.0. For detailed information, refer to the specific reference files.

**📚 Detailed References:**

- [Smart Accounts Reference](./references/smart-accounts.md) - Account creation, implementations, signers
- [Delegations Reference](./references/delegations.md) - Delegation lifecycle, scopes, caveats
- [Advanced Permissions Reference](./references/advanced-permissions.md) - ERC-7715 permissions via MetaMask

## Package Installation

```bash
npm install @metamask/smart-accounts-kit@0.3.0
```

For custom caveat enforcers:

```bash
forge install metamask/delegation-framework@v1.3.0
```

## Core Concepts Summary

### 1. Smart Accounts (ERC-4337)

Three implementation types:

| Implementation | Best For | Key Feature |
|---------------|----------|-------------|
| **Hybrid** (`Implementation.Hybrid`) | Standard dApp users | EOA + passkey signers, most flexible |
| **MultiSig** (`Implementation.MultiSig`) | Treasury/DAO operations | Threshold-based security, Safe-compatible |
| **Stateless7702** (`Implementation.Stateless7702`) | Power users with existing EOA | Keep same address, add smart account features via EIP-7702 |

**Decision Guide:**
- Building for general users? → Hybrid
- Managing treasuries or multi-party control? → MultiSig  
- Upgrading existing EOAs without address change? → Stateless7702

### 2. Delegation Framework (ERC-7710)

Grant permissions from delegator to delegate:

- **Scopes** - Initial authority (spending limits, function calls)
- **Caveats** - Restrictions enforced by smart contracts
- **Types** - Root, open root, redelegation, open redelegation
- **Lifecycle** - Create → Sign → Store → Redeem

### 3. Advanced Permissions (ERC-7715)

Request permissions via MetaMask extension:

- Human-readable UI confirmations
- ERC-20 and native token permissions
- Requires MetaMask Flask 13.5.0+
- User must have smart account

## Quick Code Examples

### Create Smart...