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CLAUDE.md

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Development Guidelines

Build Commands

  • forge build - Compile all contracts
  • forge test - Run all tests
  • forge test --match-test testFunctionName - Run a single test
  • forge test --match-path test/Kernel.t.sol - Run tests in a specific file
  • forge test -vv - Run tests with verbose output
  • FOUNDRY_PROFILE=optimized forge test - Run tests with optimized profile

Code Style

Formatting

  • Indentation: 4 spaces
  • Opening braces: same line as declaration
  • Use named imports: import {Contract} from "./path.sol";
  • Line separators: // --- Section Name ---

Naming Conventions

  • Contracts: PascalCase (e.g. Kernel)
  • Interfaces: Prefixed with "I" (e.g. IValidator)
  • Functions: camelCase (e.g. validateUserOp)
  • Private/internal: underscore prefix (e.g. _executeUserOp)
  • Constants: ALL_CAPS_WITH_UNDERSCORES

Error Handling

  • Use custom errors instead of require (e.g. error InvalidValidator();)
  • Use if-revert pattern: if (condition) { revert ErrorName(); }

Types and Structure

  • Use immutable variables when possible for gas optimization
  • Follow ERC-4337 and ERC-7579 standards
  • Use explicit storage slots with assembly for upgradeability