Opinionated Python development setup with uv, ty, ruff, pytest, and just. Use when creating a new Python project, writing or fixing pyproject.toml, or configuring linting, formatting, type checking, testing, pre-commit hooks, or build and CI tooling.
Discards the accumulated drafts and framings from this thread and re-derives the task from a clean problem statement. Use when the user says the thread is contaminated, that the conversation is going in circles, or that they want a fresh take, or when they invoke /reset-context-contamination.
Reviews a GitHub pull request end to end. Fetches the diff, runs automated checks, analyzes the changes with three parallel review agents (correctness, convention compliance, efficiency), validates every finding against the actual code, and drafts a GitHub review that posts findings as inline diff comments with a…
Practical day-1 guide to building applications in Rust well. Covers the mental model (ownership, errors as values, traits-not-interfaces), day-1 decisions (String vs &str, Box vs Rc vs Arc, dyn vs impl Trait, anyhow vs thiserror), idioms, anti-patterns, and a tight crate shortlist (tokio, serde, anyhow, clap, reqwest…
Build high-quality Agent Skills for any agent - opinionated best practices distilled from the Agent Skills spec, official Anthropic guidance, and production experience. Covers SKILL.md structure, frontmatter, description writing, single-file vs references/ layout, progressive disclosure, testing, patterns…
Build, test, deploy, and audit Solana programs with Anchor or native Rust, and build with ZK Compression (Light Protocol). Use when developing Solana smart contracts, implementing token operations, optimizing compute, deploying to networks, auditing programs for vulnerabilities, or creating compressed tokens/PDAs.
Writes or audits README files following the Standard Readme specification (github.com/RichardLitt/standard-readme). Use whenever the user asks to create, write, rewrite, improve, audit, or fix a README, or asks about README quality or structure - even if they never mention "standard readme" explicitly.
Covers macOS app development with Swift 6.3, SwiftUI, SwiftData, Swift Concurrency, Foundation Models, Swift Testing, ScreenCaptureKit, and app distribution. Use when building native Mac apps - windows, scenes, navigation, menus and toolbars, SwiftData models and queries, modern concurrency, on-device AI, testing…
Builds type-safe React apps with TanStack Query (data fetching, caching, mutations), Router (file-based routing, search params, loaders), and Start (SSR, server functions, middleware). Use when working with react-query, server state, file-based routing, typed search params, route loaders, SSR, or server functions in a…
Thorough on-demand refresh of one skill in a skills repository: researches usage/upstream/docs in parallel, gates twice for approval, bumps version, updates CHANGELOG, runs the repo's validation, then commits and watches CI. Install the pond MCP (https://pond.cascade.fyi/) for the prior-session usage angle; without it…
Go-to-market strategy for web3 builders - protocols, products, services, and solo founders. Use when planning growth for a crypto protocol, building developer community, crafting CT narrative, planning ecosystem partnerships, preparing grant applications, launching tokens, pricing crypto-native products, or growing as…
Build internet-native payments with the x402 open protocol - HTTP 402 Payment Required for on-chain micropayments with no accounts or API keys. Use when developing paid APIs, paywalled content, AI agent payment flows, or MCP tools that charge per call. Covers the TypeScript, Python, and Go SDKs across EVM, Solana…
Gives the agent up-to-date documentation and code examples for libraries and frameworks, fetched on demand so answers are not stuck at the model's training cutoff. Runs locally from the @upstash/context7-mcp npm package.