solidity-dev
Deep expertise in Solidity language features, patterns, and best practices for secure smart contract development. Covers ERC standards, gas optimization, upgradeable contracts, and security patterns.
npx skills add a5c-ai/babysitter --skill solidity-dev --agent claude-code
Same command for any agent — swap --agent for codex, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
# Solidity Development Skill Expert-level Solidity smart contract development with emphasis on security patterns, gas optimization, and ERC standard compliance. ## Capabilities - **Secure Coding Patterns**: Implement Checks-Effects-Interactions, reentrancy guards - **Gas Optimization**: Write gas-efficient code using assembly/Yul when appropriate - **NatSpec Documentation**: Generate comprehensive contract documentation - **ERC Standards**: Implement ERC-20, ERC-721, ERC-1155, ERC-4626 compliant tokens - **OpenZeppelin Integration**: Properly use and extend OZ contracts - **Modern Solidity Features**: Leverage 0.8+ features (custom errors, unchecked blocks) - **Upgradeable Contracts**: Implement UUPS and Transparent Proxy patterns ## Security Patterns ### Checks-Effects-Interactions (CEI) ```solidity function withdraw(uint256 amount) external { // CHECKS require(balances[msg.sender] >= amount, "Insufficient balance"); // EFFECTS balances[msg.sender] -= amount; // INTERACTIONS (bool success, ) = msg.sender.call{value: amount}(""); require(success, "Transfer failed"); } ``` ### Custom Errors (Gas Efficient) ```solidity // Instead of require strings error InsufficientBalance(uint256 r
- Capabilities
- Security Patterns
- Checks-Effects-Interactions (CEI)
- Custom Errors (Gas Efficient)
- Unchecked Arithmetic
- ERC Standard Templates
- ERC-20 Token
- ERC-721 NFT
- Upgradeable Contract Pattern
- UUPS Proxy
- Gas Optimization Techniques
- Storage Packing
- Calldata vs Memory
- Assembly Optimization
What does the solidity-dev skill do?
Deep expertise in Solidity language features, patterns, and best practices for secure smart contract development. Covers ERC standards, gas optimization, upgradeable contracts, and security patterns.
How do I install it?
Run `npx skills add a5c-ai/babysitter --skill solidity-dev --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From a5c-ai/babysitter, a repository with 1,642 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.