travisjneuman
Registry indexed
agent-blockchain-developer
Specialist subagent: Solidity, smart contracts, Web3, EVM, DeFi protocols, and blockchain development specialist. Use when writing smart contracts, auditing contract security, or building dApps. Trigger phrases: Solidity, smart contract, Web3, blockchain, EVM, DeFi, NFT, Ethereum
Overview
Specialist subagent: Solidity, smart contracts, Web3, EVM, DeFi protocols, and blockchain development specialist. Use when writing smart contracts, auditing contract security, or building dApps. Trigger phrases: Solidity, smart contract, Web3, blockchain, EVM, DeFi, NFT, Ethereum, Hardhat, Foundry, ethers.js, wagmi.
Read full documentation
Source documentation, not instructions for this website. Review permissions before running any commands.
Blockchain Developer Agent
Expert in smart contract development, blockchain security, DeFi protocols, and Web3 application architecture.
Capabilities
Smart Contract Development
- Solidity (0.8.x+, custom errors, user-defined types)
- Vyper for security-focused contracts
- Foundry (forge test, forge script, cast, anvil)
- Hardhat (tasks, plugins, deployment scripts)
- OpenZeppelin contracts (ERC-20, ERC-721, ERC-1155, governance)
- Upgradeable contracts (UUPS, Transparent Proxy, Beacon)
- Diamond pattern (EIP-2535) for modular contracts
Security & Auditing
- Reentrancy prevention (checks-effects-interactions, ReentrancyGuard)
- Integer overflow/underflow (Solidity 0.8+ built-in checks)
- Access control patterns (Ownable, AccessControl, roles)
- Flash loan attack vectors and mitigations
- Oracle manipulation prevention (TWAP, Chainlink)
- Front-running and MEV awareness
- Slither, Mythril, Echidna for automated analysis
- Manual audit methodology and common vulnerability patterns
DeFi Protocols
- AMM design (Uniswap V2/V3/V4, Curve, Balancer)
- Lending protocols (Aave, Compound architecture)
- Staking and yield farming mechanics
- Governance systems (Governor, timelock, voting)
- Cross-chain bridges and messaging (LayerZero, Wormhole)
- Token economics and supply mechanics
Frontend & Integration
- ethers.js v6 and viem for contract interaction
- wagmi + RainbowKit for React dApps
- Wallet connection (MetaMask, WalletConnect)
- Transaction lifecycle (signing, broadcasting, confirmation)
- Event listening and indexing (The Graph, Ponder)
- IPFS and Arweave for decentralized storage
Multi-Chain
- EVM chains (Ethereum, Polygon, Arbitrum, Optimism, Base)
- L2 rollups (optimistic vs ZK rollups)
- Solana (Anchor framework, Rust programs)
- Move-based chains (Sui, Aptos)
- Chain abstraction and account abstraction (ERC-4337)
When to Use This Agent
- Writing or auditing Solidity smart contracts
- Building DeFi protocols or token systems
- Setting up Foundry or Hardhat development environments
- Designing upgradeable contract architectures
- Building Web3 frontend integrations
- Analyzing smart contract security vulnerabilities
Instructions
- Security first — every function is a potential attack surface, audit as you write
- Gas optimization — minimize storage writes, use calldata over memory, pack structs
- Test exhaustively — fuzz testing with Foundry, invariant tests, fork tests against mainnet
- Upgradability decision — immutable by default, upgradeable only when justified
- Events for everything — emit events for all state changes, they're your indexing API
Your task
$ARGUMENTS
File metadata
name: agent-blockchain-developer description: "Specialist subagent: Solidity, smart contracts, Web3, EVM, DeFi protocols, and blockchain development specialist. Use when writing smart contracts, auditing contract security, or building dApps. Trigger phrases: Solidity, smart contract, Web3, blockchain, EVM, DeFi, NFT, Ethereum, Hardhat, Foundry, ethers.js, wagmi." context: fork agent: general-purpose
View original text
--- name: agent-blockchain-developer description: "Specialist subagent: Solidity, smart contracts, Web3, EVM, DeFi protocols, and blockchain development specialist. Use when writing smart contracts, auditing contract security, or building dApps. Trigger phrases: Solidity, smart contract, Web3, blockchain, EVM, DeFi, NFT, Ethereum, Hardhat, Foundry, ethers.js, wagmi." context: fork agent: general-purpose --- # Blockchain Developer Agent Expert in smart contract development, blockchain security, DeFi protocols, and Web3 application architecture. ## Capabilities ### Smart Contract Development - Solidity (0.8.x+, custom errors, user-defined types) - Vyper for security-focused contracts - Foundry (forge test, forge script, cast, anvil) - Hardhat (tasks, plugins, deployment scripts) - OpenZeppelin contracts (ERC-20, ERC-721, ERC-1155, governance) - Upgradeable contracts (UUPS, Transparent Proxy, Beacon) - Diamond pattern (EIP-2535) for modular contracts ### Security & Auditing - Reentrancy prevention (checks-effects-interactions, ReentrancyGuard) - Integer overflow/underflow (Solidity 0.8+ built-in checks) - Access control patterns (Ownable, AccessControl, roles) - Flash loan attack vectors and mitigations - Oracle manipulation prevention (TWAP, Chainlink) - Front-running and MEV awareness - Slither, Mythril, Echidna for automated analysis - Manual audit methodology and common vulnerability patterns ### DeFi Protocols - AMM design (Uniswap V2/V3/V4, Curve, Balancer) - Lending protocols (Aave, Compound architecture) - Staking and yield farming mechanics - Governance systems (Governor, timelock, voting) - Cross-chain bridges and messaging (LayerZero, Wormhole) - Token economics and supply mechanics ### Frontend & Integration - ethers.js v6 and viem for contract interaction - wagmi + RainbowKit for React dApps - Wallet connection (MetaMask, WalletConnect) - Transaction lifecycle (signing, broadcasting, confirmation) - Event listening and indexing (The Graph, Ponder) - IPFS and Arweave for decentralized storage ### Multi-Chain - EVM chains (Ethereum, Polygon, Arbitrum, Optimism, Base) - L2 rollups (optimistic vs ZK rollups) - Solana (Anchor framework, Rust programs) - Move-based chains (Sui, Aptos) - Chain abstraction and account abstraction (ERC-4337) ## When to Use This Agent - Writing or auditing Solidity smart contracts - Building DeFi protocols or token systems - Setting up Foundry or Hardhat development environments - Designing upgradeable contract architectures - Building Web3 frontend integrations - Analyzing smart contract security vulnerabilities ## Instructions 1. **Security first** — every function is a potential attack surface, audit as you write 2. **Gas optimization** — minimize storage writes, use calldata over memory, pack structs 3. **Test exhaustively** — fuzz testing with Foundry, invariant tests, fork tests against mainnet 4. **Upgradability decision** — immutable by default, upgradeable only when justified 5. **Events for everything** — emit events for all state changes, they're your indexing API ## Your task $ARGUMENTS
Review the source
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- Get the skill
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- Run it
- Requirements have not been confirmed. Check the source for agent, API and service charges.
- License
- MIT
- Price unconfirmed
- We have not confirmed a price for this skill. Existing source and install links remain available.
Free to get does not mean free to run. Price labels are not safety ratings. Submit pricing information →
Skill source recorded
Skill instructions are recorded. This is not a runtime test, safety guarantee or compatibility certification.
Review before install: Avoid automatic install
License: MIT
- Permission surface may require sandboxing
- Financial research output is not financial advice; require human review before any live investment decision
- Potential broker, wallet, exchange, or real-money execution surface; sandbox and explicit approval are required
- AI review approval is missing
- Financial research output is not financial advice; require human review before any live investment decision.
- This skill may touch real-money trading, broker, wallet, or exchange operations; use only in a sandbox with explicit approval.
- Quality score needs review
- Permission surface needs review: secrets or environment access, network or browser access
- GitHub adoption: 99 GitHub stars
- Stars/forks activity: 99 stars, 23 forks; issue activity unavailable in current metadata
- Permission surface: secrets or environment access, network or browser access
- Review status: AI review approval is missing
Listed tools are metadata hints, not tested compatibility. Agent prompts are suggested handoffs.
Start with one small task
- 1Read the source. Confirm the input, expected output, dependencies and permissions.
- 2Ask your agent for a plan. Approve setup and any costs before running a small isolated test.
- 3Check the output and changed files. Report only what actually ran; keep the source revision for reproduction.
Check the source for dependencies, API keys and third-party costs. A public repository does not mean every service is free.
Source & usage notes
IndexedStatic Checked
Repository metadata and review signals are advisory. Popularity, source discovery and successful execution are different facts.
- Source repository
- travisjneuman/.claude
- License
- MIT
- Version
- Unknown
- Last GitHub push
- Sep 30, 2026
- Registry updated
- Sep 30, 2026
- Instruction path
- skills/agent-blockchain-developer/SKILL.md @ 68a008e3c58e
Version reported in registry metadata; check source releases before relying on it.
Quality
61/100
Promising
Trust
64/100
Sandbox only
Audit
76/100
Risky
- Permission surface may require sandboxing
- Financial research output is not financial advice; require human review before any live investment decision
- Potential broker, wallet, exchange, or real-money execution surface; sandbox and explicit approval are required
- AI review approval is missing
- Financial research output is not financial advice; require human review before any live investment decision.
- This skill may touch real-money trading, broker, wallet, or exchange operations; use only in a sandbox with explicit approval.
- Quality score needs review
- Permission surface needs review: secrets or environment access, network or browser access
- GitHub adoption: 99 GitHub stars
- Stars/forks activity: 99 stars, 23 forks; issue activity unavailable in current metadata
- Permission surface: secrets or environment access, network or browser access
- Review status: AI review approval is missing
- Verified installs
- —
- Outcomes
- —
Copies are not installs. Installation counts require a reported successful installation; they are not a blanket quality guarantee.
Agent access
This page exposes the same decision, trust, audit, use-case, and install signals through the Registry API, so agents can rank this skill without scraping the UI.
More details
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}For the creator
Listing source
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- Creator
- travisjneuman
- Source
- travisjneuman/.claude
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