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Found 1,418 Skills
Expert guide for writing Effect-TS code, including project setup, core principles, data modeling with Schema, error handling, and the Context.Tag service pattern. Use when writing, refactoring, or analyzing TypeScript code using the Effect library.
Fast, accurate, DOM-free text measurement and layout library for JavaScript/TypeScript supporting multiline, rich-text, and variable-width layouts.
Integrate Polpo AI agents into any TypeScript/JavaScript application using @polpo-ai/sdk. Use when the user wants to add AI agent chat, completions API, streaming SSE, session management, memory, webhooks, or any Polpo API integration into their code. Triggers on "polpo", "agent chat", "completions API", "polpo sdk", "@polpo-ai/sdk", "AI agent integration".
Use this skill whenever writing, reviewing, debugging, or refactoring TypeScript code that uses the Effect-TS library. Trigger when you see imports from `effect`, `effect/*`, or any `@effect/*` scoped package (schema, platform, sql, opentelemetry, cli, cluster, rpc, vitest). Trigger on Effect-specific constructs: Effect.gen generators, Schema.Struct/Schema.Class definitions, Layer/Context.Tag/Service patterns, Effect.pipe pipelines, Data.TaggedError/Data.Class error types, Ref/Queue/PubSub/Deferred concurrency primitives, Match module, Config providers, Scope/Exit/Cause/Runtime patterns, or any code using Effect's typed error channel (E parameter). Also trigger when the user asks about Effect patterns, migration from Promises/fp-ts/neverthrow to Effect, or how to structure an Effect application. Covers the full ecosystem: core Effect type, Schema validation, error management, concurrency (fibers, queues, semaphores, pools), streams/sinks, services and layers (DI), resource management, scheduling, observability, platform APIs, and AI integration. Do NOT trigger for React's useEffect, Redux side effects, or general English usage of "effect" unless the context clearly involves the Effect-TS library.
[Pragmatic DDD Architecture] Guide for creating strictly typed Domain validation and infrastructure errors. Use when handling or creating new errors to ensure they conform to the Railway-oriented programming model (neverthrow Result), TypeScript error branding, and constructor parameter constraints. Covers co-location rules vs. shared domain error usage.
[Pragmatic DDD Architecture] Guide for creating Next.js Server Actions exactly tied to zod, neverthrow, and the domain architecture. Use when creating or editing any file in presentation/actions/. Covers "use server" placement, unknown parameters validated with `zod`, discriminated union response types, auth-first pattern, Value Object validation with TypeScript narrowing, use-case error mapping via `assertNever`, serviceContainer invocation, and revalidation strategy.
Skills covering Upstash Search quick starts, core concepts, and TypeScript/JavaScript SDK usage. Use when a user asks how to get started, how indexing works, or how to use the TS client.
Use this skill when a PinMe project (Worker TypeScript) needs to call OpenRouter-backed LLM APIs, including models, chat/completions, streaming, or OpenRouter web search. Guides AI to generate correct Worker TS code.
Work with any Upstash TypeScript/JavaScript SDK including Redis, Box, QStash, Workflow, Vector, Search and Ratelimit. Use when the user is working with any Upstash product or SDK.
Refactor and review state management in React and TypeScript applications. Use when: refactoring component state, reviewing useState usage, choosing between local and global state, preventing unnecessary re-renders, selecting state management libraries (Zustand, Jotai, Redux), applying discriminated unions, deriving state, managing refs vs state, or eliminating prop drilling.
Skills for Upstash Vector features, TypeScript/JavaScript SDK usage, and integrations. Use when users ask how to work with Vector, its TS SDK, features, or supported frameworks.
Use this skill when a PinMe project (Worker TypeScript) needs to integrate email sending (send_email). Guides AI to generate correct Worker TS code.