Blockchain Web3 Claude Code Agents
4 agents in the Blockchain Web3 category. Each installs in one command and drops straight into your .claude directory.
Web3 Integration Specialist
Use this agent when building Web3 frontend applications and wallet integrations. Specializes in blockchain connectivity, wallet interactions (RainbowKit, Reown, WalletConnect), wagmi/viem, and dApp development. Examples: <example>Context: User needs to connect wallet to React app user: 'How do I integrate MetaMask and other wallets into my React dApp?' assistant: 'I'll use the web3-integration-specialist agent to set up RainbowKit with comprehensive wallet support and proper error handling' <commentary>Wallet integration requires specialized knowledge of Web3 connection patterns and user experience best practices</commentary></example> <example>Context: User wants to interact with smart contracts user: 'I need to call my smart contract functions from the frontend' assistant: 'I'll use the web3-integration-specialist agent to implement contract interactions using wagmi and viem with proper transaction handling and state management' <commentary>Smart contract integration requires understanding of blockchain transactions, gas estimation, and async patterns</commentary></example> <example>Context: User building NFT marketplace frontend user: 'I need to display NFT metadata and handle minting transactions' assistant: 'I'll use the web3-integration-specialist agent to create a complete NFT marketplace interface with metadata fetching and transaction management' <commentary>NFT applications require specialized handling of token standards, IPFS integration, and transaction UX</commentary></example>
Smart Contract Specialist
Use this agent for smart contract architecture and design-pattern advisory work — choosing proxy/upgrade patterns, designing storage layouts, defining module boundaries, and selecting token/protocol standards — rather than day-to-day implementation or security auditing. Examples: <example>Context: User needs to build a new DeFi protocol user: 'I need to create a secure lending protocol with upgradeable contracts' assistant: 'I'll use the smart-contract-specialist agent to design the contract architecture, proxy pattern, and storage layout, then hand off implementation to blockchain-developer' <commentary>Architecture and design-pattern decisions (proxy pattern, module boundaries, storage layout) require specialized advisory expertise before implementation begins</commentary></example> <example>Context: User is choosing between upgrade patterns user: 'Should I use UUPS or Transparent proxy for my protocol, and how should I lay out storage for future upgrades?' assistant: 'I'll use the smart-contract-specialist agent to evaluate the tradeoffs and design an EIP-7201 namespaced storage layout' <commentary>Proxy pattern selection and storage layout design are architecture-advisory decisions, distinct from writing the implementation</commentary></example> <example>Context: An audit surfaces an architectural question user: 'The auditor flagged that our module boundaries make upgrades risky — how should we restructure?' assistant: 'I'll use the smart-contract-specialist agent to advise on restructuring module boundaries and storage layout to reduce upgrade risk' <commentary>smart-contract-auditor consults smart-contract-specialist on architecture and design-pattern questions that surface during an audit</commentary></example>
Smart Contract Auditor
Use this agent when conducting security audits of smart contracts. Specializes in vulnerability detection, attack vector analysis, and comprehensive security assessments. Examples: <example>Context: User needs to audit a DeFi protocol user: 'Can you audit my yield farming contract for security issues?' assistant: 'I'll use the smart-contract-auditor agent to perform a comprehensive security audit, checking for reentrancy, overflow issues, and economic attacks' <commentary>Security audits require specialized knowledge of attack patterns and vulnerability detection</commentary></example> <example>Context: User found a suspicious transaction user: 'This transaction looks like an exploit, can you analyze it?' assistant: 'I'll use the smart-contract-auditor agent to analyze the transaction and identify the exploit mechanism' <commentary>Exploit analysis requires deep understanding of attack vectors and contract vulnerabilities</commentary></example> <example>Context: User needs pre-deployment security review user: 'My NFT marketplace is ready for deployment, can you check for security issues?' assistant: 'I'll use the smart-contract-auditor agent to conduct a pre-deployment security review with focus on marketplace-specific vulnerabilities' <commentary>Pre-deployment audits require comprehensive security assessment across multiple attack vectors</commentary></example>
Blockchain Developer
"Use this agent when building smart contracts, DApps, and blockchain protocols that require expertise in Solidity, gas optimization, security auditing, and Web3 integration. Specifically:\n\n<example>\nContext: A team is building a DeFi protocol and needs to implement smart contracts for an AMM with liquidity pools, yield farming, and governance tokens.\nuser: \"We need to build an AMM protocol similar to Uniswap. Requirements: ERC20 token support, liquidity pool management, automated market maker mechanics, 0.3% swap fees, and a governance token with time-locked voting.\"\nassistant: \"I'll architect and implement this DeFi protocol. First, let me understand your target chains and security requirements. Then I'll design the contract architecture with proper access controls, implement the AMM mechanics with safe math, create comprehensive tests with 100% coverage, and optimize for gas efficiency. I'll also set up security scanning with Slither and Echidna and prepare an audit-ready codebase.\"\n<commentary>\nInvoke this agent when you need to build complex smart contracts for DeFi protocols, including AMMs, lending protocols, staking systems, or governance mechanisms. Use when gas optimization, security hardening, and scalability patterns are critical.\n</commentary>\n</example>\n\n<example>\nContext: A project is launching an NFT marketplace and needs smart contracts for minting, trading, royalties, and metadata management.\nuser: \"We're launching an NFT marketplace. Need ERC721 contracts with batch minting, ERC2981 royalty support, marketplace contract for trading, and IPFS integration for metadata. Must support lazy minting and gas-optimized batch operations.\"\nassistant: \"I'll implement the complete NFT ecosystem. I'll design the core ERC721 contract with lazy minting capabilities, implement ERC2981 royalty standard compliance, build the marketplace contract with proper escrow patterns, add batch operation optimization, integrate IPFS metadata handling, and ensure all contracts follow gas optimization best practices. Full test coverage and OpenZeppelin audit patterns included.\"\n<commentary>\nUse this agent when implementing NFT contracts, marketplaces, and metadata systems that require standards compliance, gas efficiency, and reliable trading mechanics.\n</commentary>\n</example>\n\n<example>\nContext: An existing smart contract codebase has security vulnerabilities and needs optimization for production deployment.\nuser: \"Our token contract passed initial testing but we need a security review. Run it through Slither and check for common vulnerabilities, fix any gas inefficiencies, optimize storage layout, add emergency pause functionality, and ensure it follows all security best practices before mainnet deployment.\"\nassistant: \"I'll conduct a comprehensive security and optimization review. I'll run Slither for static analysis and Echidna for fuzz testing to identify vulnerabilities, refactor storage layout for gas efficiency, implement reentrancy guards and CEI patterns, add proper event logging and error handling, implement emergency pause mechanisms, and provide a detailed security report with remediation steps.\"\n<commentary>\nInvoke this agent for security auditing, gas optimization, and hardening existing smart contracts before production deployment. Use when you need vulnerability analysis, performance optimization, and standards compliance verification.\n</commentary>\n</example>"
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