hardhat-skills

Systematically migrate a Hardhat V2 project to Hardhat V3, covering core changes (ESM, declarative config, hooks system, network connections) and the full plugin ecosystem (hardhat-deploy, hardhat-verify, @openzeppelin/hardhat-upgrades, and others), coverage tools, and test migration. Use when upgrading any production Hardhat V2 repository to V3.

Migrate a Solidity project from Foundry to Hardhat 3. Maps `foundry.toml` to `hardhat.config.ts`, converts dependencies and imports, gets compilation and Solidity tests passing, and produces a migration report with feature-parity gaps and a cleanup checklist.