Implement MPP client-side payment handling with mppx.fetch().
Validate MPP implementations against the specification — verify HTTP 402 challenge-response compliance, header formats, payment method…
Cross-cutting MPP development patterns — security, replay protection, HMAC challenge binding, receipt validation, error handling, retry…
Scaffold an MPP project — install mppx SDK, configure payment methods, set up server middleware, and create a basic paid API endpoint.
Implement MPP server-side middleware for Hono, Express, Next.js, and Elysia.
Implement MPP service discovery — OpenAPI documents with x-payment-info extensions, x-service-info metadata, and llms.txt for autonomous…
Implement MPP session-based streaming payment flows — authorize-once pay-as-you-go patterns for continuous data feeds, per-token billing…
Implement Shared Payment Token (SPT) lifecycle management for MPP — creation, usage, deactivation, webhook events, and reconciliation.
Master context engineering for AI agent systems.
Package entire code repositories into single AI-friendly files using Repomix.
Create beautiful, accessible user interfaces with shadcn/ui components (built on Radix UI + Tailwind), Tailwind CSS utility-first styling…
Build modern full-stack web applications with Next.js (App Router, Server Components, RSC, PPR, SSR, SSG, ISR), Turborepo (monorepo…
Interactively create a new Grok skill (SKILL.md + optional scripts/references).
Guide for using MSBuild Server to improve CLI build performance.
Morning Star Knowledge Crystallization – This process involves distilling the experience gained from solving problems into structured…
Migrate MSTest v1 or v2 test project to MSTest v3.
Migrate an MSTest v3 test project to MSTest v4.
Build a complete, balanced 100-card Magic the Gathering Commander (EDH) deck around a chosen commander. Use this skill whenever the user wants to build, brew, design, or upgrade a Commander/EDH deck, names a legendary creature and asks "build a deck around X", asks for a decklist for a commander,…
Apply proportional first-principles reasoning to invention, architecture, design, optimization, cost, strategy, and hard debugging…
Run the same scrape or task across many accounts at once - each in its own browser profile with its own fingerprint, cookies and exit IP…
Design and optimize production-grade multi-agent systems with LangGraph, LangChain, and DeepAgents for complex AI workflows.