Skill UI

Learn how to build advanced, server-side business logic for Shopify using Shopify Functions and WebAssembly (WASM). This guide covers implementing custom discount rules, payment customizations, delivery option filtering, and cart transformations directly at the checkout. Designed for developers, it leverages the WASM sandbox for highly constrained, powerful e-commerce functionality.

This wrapper provides a mechanism to integrate x402 payment walls into Node.js/Express APIs. It enforces micropayments (USDC on Base L2) for API access, enabling robust machine-to-machine (M2M) monetization. By acting as middleware, it requires valid payment signatures, ensuring that every API call is monetized and payments are liquidated atomically.

This router guides the testing of systemic flaws in business processes and state machines. It is essential when vulnerabilities stem from workflow abuse, race conditions, pricing flaws, or multi-step state attacks, rather than simple input sanitation issues. Use it to test complex business flows like payments, inventory management, and approval sequences.

A powerful PreToolUse hook designed to act as a safety net during code writing sessions. It automatically scans both file paths and content for 12 common security anti-patterns, including SQL injection, XSS, command injection (Node.js/Python), and unsafe deserialization. It blocks the writing operation and provides immediate warnings, ensuring adherence to secure coding practices when handling sensitive code like authentication or payment logic.

This skill analyzes ransomware cryptocurrency payment flows by utilizing major blockchain intelligence APIs (like Chainalysis and WalletExplorer). It identifies wallet clusters, tracks movements through obfuscation services (mixers, tumblers), and determines fund flows to exchanges, supporting forensic investigations and law enforcement attribution efforts.

This skill mints tamper-evident, post-quantum-signed receipts for consequential agent actions (e.g., deployment, payment, access grant). It records who, what, and under which policy the action occurred, ensuring the evidence cannot be altered later. By providing verifiable proof from the certificate alone, it is crucial for meeting regulatory compliance requirements, such as the EU AI Act, and building auditable, trustworthy systems.