StealIt

30 skills · 7 publishers

Claude skills for smart contracts

Solidity and blockchain security from Trail of Bits and others: audit contracts, find vulnerabilities and follow token standards.

The best Claude skills for smart contracts

  1. 1

    Defi Protocol Templates

    Seth Hobson 42k

    Implement DeFi protocols with production-ready templates for staking, AMMs, governance, and flash loans. Use when building decentralized finance applications or smart contract protocols.

    npx skills add wshobson/agents --skill defi-protocol-templates
  2. 2

    Nft Standards

    Seth Hobson 42k

    Implement NFT standards (ERC-721, ERC-1155) with proper metadata handling, minting strategies, and marketplace integration. Use when creating NFT contracts, building NFT marketplaces, or implementing…

    npx skills add wshobson/agents --skill nft-standards
  3. 3

    Solidity Security

    Seth Hobson 42k

    Master smart contract security best practices to prevent common vulnerabilities and implement secure Solidity patterns. Use when writing smart contracts, auditing existing contracts, or implementing…

    npx skills add wshobson/agents --skill solidity-security

All 30 smart contracts skills

30 skills

Defi Protocol Templates

Implement DeFi protocols with production-ready templates for staking, AMMs, governance, and flash loans. Use when building decentralized finance applications or smart contract…

Coding WorkflowSeth Hobson42k

Nft Standards

Implement NFT standards (ERC-721, ERC-1155) with proper metadata handling, minting strategies, and marketplace integration. Use when creating NFT contracts, building NFT…

Coding WorkflowSeth Hobson42k

Solidity Security

Master smart contract security best practices to prevent common vulnerabilities and implement secure Solidity patterns. Use when writing smart contracts, auditing existing…

SecuritySeth Hobson42k

Web3 Testing

Test smart contracts comprehensively using Hardhat and Foundry with unit tests, integration tests, and mainnet forking. Use when testing Solidity contracts, setting up blockchain…

Testing & BrowserSeth Hobson42k

Claude API

Reference for the Claude API / Anthropic SDK — model ids, pricing, params, streaming, tool use, MCP, agents, caching, token counting, model migration. TRIGGER — read BEFORE…

AI & AgentsAnthropic187k

Prospecting

When the user wants to find, qualify, and build a list of prospects to reach out to, across B2B SaaS, general B2B, or local small businesses. Also use when the user mentions…

Marketing & SEOCorey Haines58k

Context Driven Development

Creates and maintains project context artifacts (product.md, tech-stack.md, workflow.md, tracks.md) in a `conductor/` directory. Scaffolds new projects from scratch, extracts…

Coding WorkflowSeth Hobson42k

Python Project Structure

Python project organization, module architecture, and public API design. Use when setting up new projects, organizing modules, defining public interfaces with __all__, or planning…

Backend & APIsSeth Hobson42k

Python Type Safety

Python type safety with type hints, generics, protocols, and strict type checking. Use when adding type annotations, implementing generic classes, defining structural interfaces…

Backend & APIsSeth Hobson42k

Slo Implementation

Define and implement Service Level Indicators (SLIs) and Service Level Objectives (SLOs) with error budgets and alerting. Use when establishing reliability targets, implementing…

Cloud & DevOpsSeth Hobson42k

Startup Metrics Framework

Track, calculate, and optimize key performance metrics for SaaS, marketplace, consumer, and B2B startups from seed through Series A, including unit economics, growth efficiency…

Coding WorkflowSeth Hobson42k

React Vite Dashboard

Convert Stitch designs into production React + Vite dashboards with TanStack Query, accessible tokens from DESIGN.md, and Web3-ready patterns (ethers/viem).

FrontendGoogle Labs8.7k

Stitch Extract Design MD

Extract a comprehensive design system (DESIGN.md) directly from frontend source code — React, Vue, Svelte, Angular, plain HTML/CSS, or any web framework. Analyzes component files…

Design & UIGoogle Labs8.7k

Ads Attribution

Audit cross-platform attribution, conversion definitions, reporting windows, GA4, AdServices and AdAttributionKit, MMPs, browser and server events, offline conversions, and…

Marketing & SEOAgrici Daniel11k

EAS Observe

Use for anything related to EAS Observe - adding `expo-observe` to an Expo project (AppMetricsRoot/ObserveRoot HOC, markInteractive and ObserveInteractiveMarker, the useObserve…

MobileExpo4k

Expo Migrate Module

Migrate an existing Apple/Swift Expo native module from the Expo Modules API 1.0 definition DSL to the 2.0 macro API (sometimes called v2) while preserving its JavaScript and…

MobileExpo4k

Expo Module

Guide for creating and writing Expo native modules and views using the Expo Modules API (Swift, Kotlin, TypeScript). Covers module definition DSL, native views, shared objects…

MobileExpo4k

Algorand Vulnerability Scanner

Scans Algorand smart contracts for 11 common vulnerabilities including rekeying attacks, unchecked transaction fees, missing field validations, and access control issues. Use when…

SecurityTrail of Bits8k

Cairo Vulnerability Scanner

Scans Cairo/StarkNet smart contracts for 6 critical vulnerabilities including felt252 arithmetic overflow, L1-L2 messaging issues, address conversion problems, and signature…

SecurityTrail of Bits8k

Code Maturity Assessor

Systematic code maturity assessment using Trail of Bits' 9-category framework. Analyzes codebase for arithmetic safety, auditing practices, access controls, complexity…

SecurityTrail of Bits8k

Cosmos Vulnerability Scanner

Scans Cosmos SDK blockchain modules and CosmWasm contracts for consensus-critical vulnerabilities — chain halts, fund loss, state divergence. 25 core + 16 IBC + 10 EVM + 3…

SecurityTrail of Bits8k

Dimensional Analysis

Audits code for unit and decimal-scaling bugs and annotates it with dimensional comments recording the units of each value. Use when someone asks to audit or review code for unit…

SecurityTrail of Bits8k

Entry Point Analyzer

Analyzes smart contract codebases to identify state-changing entry points for security auditing. Detects externally callable functions that modify state, categorizes them by…

SecurityTrail of Bits8k

Guidelines Advisor

Smart contract development advisor based on Trail of Bits' best practices. Analyzes codebase to generate documentation/specifications, review architecture, check upgradeability…

SecurityTrail of Bits8k

Property Based Testing

Writes, reviews, and debugs property-based tests — Hypothesis, fast-check, proptest, jqwik, rapid, and Echidna or Medusa for Solidity invariants. Use whenever tests should cover a…

SecurityTrail of Bits8k

Secure Workflow Guide

Guides through Trail of Bits' 5-step secure development workflow. Runs Slither scans, checks special features (upgradeability/ERC conformance/token integration), generates visual…

SecurityTrail of Bits8k

Ton Vulnerability Scanner

Scans TON (The Open Network) smart contracts for 3 critical vulnerabilities including integer-as-boolean misuse, fake Jetton contracts, and forward TON without gas checks. Use…

SecurityTrail of Bits8k

Writing Lean Proofs

Writes and reviews structured Lean 4 proofs and designs Lean libraries following Mathlib conventions. Use when proving theorems in Lean, formalizing mathematics or specifications…

SecurityTrail of Bits8k

Blog

Full-lifecycle blog engine with 31 sub-skills, 12 templates, 100-point scoring, and 5 agents. Routes requests to the right sub-skill: writing, rewriting, analysis, outlines…

Marketing & SEOAgrici Daniel2.6k

Blog Persona

Create and manage writing personas with NNGroup 4-dimension tone framework (Funny-Serious, Formal-Casual, Respectful-Irreverent, Enthusiastic-Matter-of-fact). Personas define…

Marketing & SEOAgrici Daniel2.6k

About these smart contracts skills

This page collects every skill in the directory that covers smart contracts: 30 from 7 publishers, including official skills from Trail of Bits, Expo, Google Labs and Anthropic. Each one links back to its original GitHub repository, so you always get the author's latest version. They span Design & UI, Frontend, Backend & APIs and Mobile.

Publishers on this page

Questions about Claude skills for smart contracts

What is the best Claude skill for smart contracts?

Our top pick is Defi Protocol Templates by Seth Hobson, from a repository with 42k GitHub stars. Nft Standards and Solidity Security round out the top three. Skills are ranked by the popularity of their source repository, with hand-picked favorites first, and official skills from Trail of Bits, Expo, Google Labs and Anthropic carry a badge.

How do I install a Claude skill for smart contracts?

Open a skill's page and run its install command in your project folder, for example npx skills add wshobson/agents --skill defi-protocol-templates. You can also download any skill as a ZIP and add it to Claude Code or upload it to the Claude app.

Skills from claude-ads and claude-blog rely on shared scripts and agents, so install them as a Claude Code plugin. Their pages show the two commands.

The install guide walks through every method.

Are Claude skills for smart contracts free?

Yes. All 30 skills on this page are open source and free to use, and most are MIT licensed. You need a Claude plan that supports skills, or a coding agent that reads SKILL.md files.

Do these skills work in Claude Code and the Claude app?

Yes. A skill is a folder with a SKILL.md file, and the same folder works in Claude Code, the Claude desktop and web apps (on paid plans with code execution turned on) and the Claude API. Many also work in other agents that support the Agent Skills format, such as Cursor and OpenAI Codex. Skills that ship scripts need somewhere Claude can run code.

How many Claude skills for smart contracts are there?

We list 30 from 7 publishers, last updated November 4, 2026. The list refreshes from GitHub as publishers release new skills.

Related use cases

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