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barz - Modular ERC-4337 Smart Contract Wallet

Modular ERC-4337 smart contract wallet using Diamond proxy pattern with swappable facets

Tags

Updated: 2026-03-24

Capabilities

Typical Inputs

Typical Outputs

What this skill does

  • deploy wallet
  • execute transaction
  • validate signature
  • add facet
  • remove facet
  • replace facet
  • lock account
  • unlock account
  • recover account
  • switch signature scheme
  • execute batch

Inputs

  • verification facet address
  • owner address
  • guardian address
  • facet registry
  • user operation
  • signature

Outputs

  • wallet contract
  • transaction receipt
  • facet cut event
  • signature validation result
  • account address

Requirements

  • ERC-4337 EntryPoint
  • Ethereum network
  • Hardhat or Foundry
  • Node provider
  • Diamond proxy pattern

Source

  • Spec: SKILL.md

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ERC-4337
account abstraction
smart contract wallet
Diamond proxy
modular wallet
Ethereum
WebAuthn
deploy wallet
execute transaction
validate signature
add facet
verification facet address
owner address
guardian address
wallet contract
transaction receipt
facet cut event