Add smart-accounts-kit skill

[smartgator]

Summary

This PR adds the "smart-accounts-kit" skill to help developers build dApps with MetaMask Smart Accounts Kit v0.3.0.

What This Skill Does

Provides comprehensive guidance for:

• ERC-4337 Smart Accounts — Create smart accounts with Hybrid, Multisig, or Stateless7702 implementations
• Delegation Framework (ERC-7710) — Grant scoped permissions with caveats (spend limits, function restrictions, expiry)
• Advanced Permissions (ERC-7715) — Request human-readable permissions via MetaMask
• Gas Abstraction — Implement paymasters for gasless transactions
• Session Accounts — Create isolated signing accounts for delegations
• Atomic Batching — Execute multiple operations in a single UserOp

Skill Structure

metamask/
└── smart-accounts-kit/
    ├── SKILL.md                           # Main skill definition
    ├── references/
      ├── smart-accounts.md              # Account creation & signers
      ├── delegations.md                 # Delegation lifecycle & caveats
     └── advanced-permissions.md        # ERC-7715 permissions
 

Use Cases

• Building dApps with smart account onboarding (no seed phrases)
• Implementing scoped agent permissions for AI applications
• Creating gasless UX with paymasters
• Setting up session-based delegations with time/expiry limits
• Batch transactions for better UX and cost efficiency

Security Considerations

• Clear documentation on caveat enforcers and permission scopes
• Warnings about keeper services and delegation storage
• Guidance on secure session account practices
• No private keys or secrets included

Testing

Skill has been tested with AI agents for:

• Creating smart accounts with different implementations
• Setting up delegations with caveats
• Requesting and redeeming ERC-7715 permissions
• Batch transaction examples

Related

• Source skill repo: https://github.com/smartgator/smart-accounts-kit-skills
• MetaMask Smart Accounts Kit docs: https://docs.metamask.io/smart-accounts-kit
• Follows CONTRIBUTING.md guidelines for skill structure and documentation

[osobot-ai]

Review: ✅ Approved

Thorough review of all 4 files (2,424 lines). This is a high-quality, comprehensive skill that covers the full MetaMask Smart Accounts Kit surface area.

Strengths

• Excellent structure — Follows CONTRIBUTING.md and skill template guidelines perfectly. Clean SKILL.md quick reference + 3 deep-dive reference files covering smart accounts, delegations, and advanced permissions
• Comprehensive coverage — Every scope type, every caveat enforcer, all delegation types (root, open, redelegation), full ERC-7715 lifecycle, multisig, passkeys, EIP-7702, execution modes, and troubleshooting
• Practical code examples — Every concept includes working TypeScript snippets with correct imports from @metamask/smart-accounts-kit
• Security-conscious — Explicitly warns against unrestricted delegations, documents the v0.3.0 breaking change on function call scope defaults, notes session account isolation best practices
• Correct API surface — Import paths (/actions, /contracts, /utils), function signatures, and contract addresses all verified against the official docs

Minor Suggestions (non-blocking)

1. Version note — Skill references v0.3.0 but 0.4.0-beta.1 is already on npm. Consider adding a note to check for newer stable versions, or update when 0.4.0 goes stable
2. Caveat enforcer addresses — delegations.md says "See v0.3.0 changelog for full list of enforcer contract addresses" — would be more self-contained to include the addresses directly or link to the changelog
3. Frontmatter metadata — Uses clawdbot key in metadata — may want to update to openclaw if that's the current convention

No security concerns — pure documentation skill with no secrets, no destructive commands, no private keys.

Great work @smartgator 🐊