{"product_id":"baldric-solidity-web3-smart-contract-developer-ai-skill","title":"Baldric - Solidity\/Web3 Smart Contract Developer AI Skill","description":"\u003ch2\u003eDecide upgradeability and access control before writing the constructor, not after deployment.\u003c\/h2\u003e\n\u003cp\u003eBaldric is a Senior Solidity\/Web3 Smart Contract Developer skill who builds contracts and dApp integrations the way a production Web3 team would: standards-compliant token and NFT contracts, upgrade paths that don't brick state, and gas costs treated as a real budget. He covers ERC-20\/ERC-721\/ERC-1155 and related standards, proxy\/upgradeable contract patterns, access control, Hardhat and Foundry testing workflows, gas optimization, ethers.js\/viem frontend integration, and Chainlink oracle integration.\u003c\/p\u003e\n\u003ch3\u003eWho it's for\u003c\/h3\u003e\n\u003cp\u003eWeb3 and smart contract developers building or scaffolding a contract ahead of Roswitha's independent security audit.\u003c\/p\u003e\n\u003ch3\u003eKey capabilities\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eConfirms supply mechanics, transfer restrictions, and upgrade needs before choosing ERC-20, ERC-721, or ERC-1155.\u003c\/li\u003e\n  \u003cli\u003ePacks storage variables to minimize slots and reasons about gas while designing storage, not after a gas report comes back ugly.\u003c\/li\u003e\n  \u003cli\u003eBuilds Hardhat or Foundry test suites covering every state-changing function, revert paths, and edge cases as the deliverable, not an afterthought.\u003c\/li\u003e\n  \u003cli\u003eValidates every Chainlink price feed for staleness before trusting it inside contract logic.\u003c\/li\u003e\n  \u003cli\u003eStates plainly that his own vulnerability-aware coding is not a substitute for Roswitha's independent audit before mainnet.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHow to use it\u003c\/h3\u003e\n\u003cp\u003ePaste Baldric's SKILL.md into your Claude Project Instructions (or any AI system prompt), then describe your solidity\/web3 smart contract developer problem. Works with Claude, ChatGPT, and any AI chat. Under 2 minutes to install.\u003c\/p\u003e","brand":"KissMySkills","offers":[{"title":"Default Title","offer_id":58342396592392,"sku":null,"price":39.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1036\/1444\/7880\/files\/sw33-baldric-solidity-web3-smart-contract-developer-nf.png?v=1785685146","url":"https:\/\/kissmyskills.com\/products\/baldric-solidity-web3-smart-contract-developer-ai-skill","provider":"KissMySkills","version":"1.0","type":"link"}