| name | smart-contract-dev |
| version | 1.0.0 |
| description | Provides best practices, patterns, and security workflows for writing, testing, and deploying Solidity smart contracts using Foundry or Hardhat. |
Smart Contract Development Skill
Purpose
Enforces Web3 smart contract standards and security best practices for developers. Ensures contracts are built securely, gas-optimized, and thoroughly tested before deployment to mainnet architectures.
When I Activate
I automatically load when you mention:
- "smart contract", "solidity"
- "hardhat", "foundry", "forge"
- "erc20", "erc721", "erc1155"
- "reentrancy", "smart contract security"
What I Enforce
- Checks-Effects-Interactions (CEI): Every publicly callable state-modifying function must implement checks, perform state updates, and finally issue external calls.
- Access Control: Roles and execution rights must be explicitly scoped (via
Ownable or AccessControl).
- Optimized Storage: Enforces variable packing, event logging, and custom errors over standard
require() string reverts.
- Testing Standards: Every smart contract must have corresponding unit tests that explicitly test standard execution flow, exact reverts via cheatcodes/assertions, and event emission.
Validation Checklist
Before testing or finalizing a Solidity contract, verify:
✅ Pragmas: Use recent Solidity versions (^0.8.20 or higher) to avoid legacy math underflows and utilize modern features like Custom Errors.
✅ Reentrancy Safe: Use nonReentrant or strictly adhere to CEI.
✅ Visibility: Do not use public when external is sufficient.
✅ Events: Confirm all updates to sensitive state variables emit an event for off-chain indexers.
Documentation Navigation
- reference.md: Details on CEI, Gas optimizations, OpenZeppelin integration, Foundry/Hardhat tooling.
- examples.md: Ready-to-use smart contract templates (ERC20, ERC721) and Foundry test setups.
Note: Use this skill specifically for backend Web3 infrastructure. If writing frontend React or integrating wallets, refer to the dapp-dev skill instead.
