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Found 10,419 Skills
Smart contract security best practices for Solidity development. Use when writing, reviewing, or auditing Solidity code. Covers reentrancy prevention, access control patterns, safe external calls, input validation, upgrade safety, and OWASP Smart Contract Top 10 vulnerabilities. Triggers on tasks involving security, vulnerability detection, access control, CEI pattern, ReentrancyGuard, SafeERC20, or smart contract auditing.
REST API for optimized token swapping (including executable transaction generation), swap quoting, and pricing using the SushiSwap Aggregator. Use this skill when the user wants to: - Get a swap quote between two tokens on 40+ evm networks - Generate executable swap transaction data - Fetch token prices for a specific network or token - Retrieve token metadata - Discover supported AMM liquidity sources - Integrate SushiSwap swapping or pricing logic via HTTP/REST (and not the SushiSwap Javascript API)
Guides modern Rails 8 code architecture decisions and patterns. Use when deciding where to put code, choosing between patterns (service objects vs concerns vs query objects), designing feature architecture, refactoring for better organization, or when user mentions architecture, code organization, design patterns, or layered design.
Implements transactional emails with Action Mailer and TDD. Use when creating email templates, notification emails, password resets, email previews, or when user mentions mailer, email, notifications, or transactional emails.
Configures Solid Queue for background jobs in Rails 8. Use when setting up background processing, creating background jobs, configuring job queues, or migrating from Sidekiq to Solid Queue.
Direct technical advisor mode for counting/estimation and architecture/design
ERC token standard implementation guidelines for Solidity. Use when implementing, extending, or reviewing ERC20, ERC721, ERC1155, or ERC4626 contracts. Covers interface compliance, common pitfalls, OpenZeppelin and Solady implementations, extension patterns, and testing strategies. Triggers on tasks involving token implementation, NFT contracts, vault standards, or ERC compliance.
Build production REST APIs with Go - handlers, middleware, security
CLI application patterns and best practices
Adversarial scenario analysis and threat modeling for Solidity smart contracts. Use when analyzing contracts from an attacker's perspective, identifying multi-step attack vectors, or performing threat modeling. Covers flash loan attacks, oracle manipulation, MEV/front-running, governance exploits, reentrancy scenarios, access control bypasses, economic logic exploits, and cross-contract composability risks. Triggers on tasks involving adversarial analysis, threat modeling, attack scenarios, attack vectors, exploit analysis, or red team review.
Fetch and analyze Readwise reading activity for any date range. Use when user asks about articles saved, highlights created, or most-highlighted content for today, yesterday, last week, last month, or custom date ranges (e.g., "show my Readwise activity from Jan 1-7"). Requires READWISE_API_TOKEN env var. Connects to Readwise Highlights API (v2) and Reader API (v3).
Create interactive chart visualizations (bar, line, pie) from data.