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Found 43 Skills
Use this skill when designing SDKs, writing onboarding flows, creating changelogs, or authoring migration guides. Triggers on developer experience (DX), API ergonomics, SDK design, getting-started guides, quickstart documentation, breaking change communication, version migration, upgrade paths, developer portals, and developer advocacy. Covers the full DX lifecycle from first impression to long-term retention.
Guide for using ty, the extremely fast Python type checker and language server. Use this when type checking Python code or setting up type checking in Python projects.
Implement API versioning strategies including URL versioning, header versioning, backward compatibility, deprecation strategies, and migration guides. Use when dealing with API versions, deprecating endpoints, or managing breaking changes.
Next.js 16 migration guide (async request APIs, "use cache", Turbopack)
Migrate Node.js projects to Bun with compatibility analysis. Use when converting existing npm/pnpm/yarn projects to Bun or auditing dependencies for Bun compatibility.
Use when building distributed apps with Aspire; orchestrating .NET, JavaScript, Python, or polyglot services; when environment variables or service discovery aren't working; when migrating from .NET Aspire 9 to 13+ or Community Toolkit; when seeing AddNpmApp deprecated errors; when OTEL not appearing in dashboard; when ports change on restart breaking OAuth; when configuring MCP server for AI assistants; when debugging Aspire apps and need to check resource status or logs
Python type checking expertise using ty - the extremely fast type checker by Astral. Use when: (1) Adding type annotations to Python code, (2) Fixing type errors reported by ty, (3) Migrating from mypy/pyright to ty, (4) Configuring ty for projects, (5) Understanding advanced type patterns (generics, protocols, intersection types), (6) Setting up ty in editors (VS Code, Cursor, Neovim, PyCharm).
Use when working with Fresh framework, creating routes or handlers in Fresh, building web UIs with Preact, or adding Tailwind CSS in Deno. Covers Fresh 2.x project structure, route handlers, islands, createDefine, PageProps, context patterns, and Fresh 1.x to 2.x migration. Essential for any Fresh-related question.
Vitest 3 Features skill
Guide for using ty, the extremely fast Python type checker and language server. Use this when type checking Python code or setting up type checking in Python projects.
Governs the evolution of public APIs. Detects breaking changes, manages deprecation cycles, and generates migration guides for clients.
Initialize, validate, and troubleshoot Deep Agents projects in Python or JavaScript using the `deepagents` package. Use when users need to create agents with built-in planning/filesystem/subagents, configure middleware/backends/checkpointing/HITL, migrate from `create_react_agent` or `create_agent`, scaffold projects with repo scripts, validate agent config files, and confirm compatibility with current LangChain/LangGraph/LangSmith docs.