Heichen

Comprehensive Foundry smart contract development skill with code style, naming conventions, contract structure, security guidelines, testing standards, and gas optimization. Use when working with .sol files, Foundry projects (foundry.toml), test files (.t.sol), or deployment scripts. Triggers on "smart contract", "Solidity", "Foundry", "forge", "deploy contract", "write test", "security audit".

Generate, critique, and iteratively refine production prompts for AI agents (system/developer/task prompts) with explicit role boundaries, tool-calling contracts, workflow stages, safety policies, and output format rules. Use when creating a new prompt from scratch, upgrading weak prompts, merging conflicting prompt instructions, adapting prompts to a specific tool/runtime, or benchmarking prompt quality based on patterns from Anthropic, Google Antigravity, Open Source prompts, Notion AI, and Lovable.