Browse reusable Agent Skills, each with a clear purpose and practical guidance.
Stream-backed reactive database with @durable-streams/state. createStreamDB() with schema and stream options, db.preload() lazy initialization, db.collections for TanStack DB collections, optimistic actions with onMutate and mutationFn, db.utils.awaitTxId() for transaction confirmation, control events (snapshot-start, snapshot-end, reset), db.close() cleanup, re-exported TanStack DB operators (eq, gt, and, or, count, sum, avg, min, max).
TanStack AI integration with Durable Streams. durableStreamConnection() for useChat(), toDurableChatSessionResponse() for server-side streaming, SSR hydration with materializeSnapshotFromDurableStream(), multi-client sync with live: true, chunk sanitization, read proxy pattern. Load when building chat apps with TanStack AI (@tanstack/ai-react) and durable streams.
Vercel AI SDK integration with Durable Streams. createDurableChatTransport() for useChat(), toDurableStreamResponse() for server-side streaming, resumable chat sessions with reconnectToStream(), read proxy pattern for auth. Load when building chat apps with Vercel AI SDK (@ai-sdk/react) and durable streams.
Writing data to durable streams. DurableStream.create() with contentType, DurableStream.append() for simple writes, IdempotentProducer for high-throughput exactly-once delivery with autoClaim, fire-and-forget append(), flush(), close(), StaleEpochError handling, JSON mode vs byte stream mode, stream closure. Load when writing, producing, or appending data to a durable stream.
Integrate Yjs collaborative editing with TipTap v3 and CodeMirror 6 over durable streams. Canonical React pattern: doc+awareness in useState, provider in useEffect with connect:false (listeners before connect). TipTap: Collaboration + CollaborationCaret extensions, -caret not -cursor package. CodeMirror: yCollab binding. Covers awareness wiring, multi-document navigation with key={docId}, SSR ssr:false requirement. Critical anti-patterns that crash agents documented.
First-time setup for @durable-streams/y-durable-streams. Install peer deps, start dev servers (DurableStreamTestServer + YjsServer), create a collaborative Y.Doc, connect with YjsProvider, verify sync, add awareness for presence. Load when setting up Yjs collaborative editing for the first time.
Configure hotpath profiling in a Rust project. Adds the hotpath dependency with feature-gated setup, instruments main with
Rust documentation practices for HASH codebase. Use when writing doc comments, documenting functions/types/traits/modules, creating error sections, using intra-doc links, or following rustdoc conventions.
Use when creating, moving, splitting, or organizing TypeScript files and folders. Applies fractal tree file-structuring rules which reduce the cognitive overhead of choosing where to put files and ultimately navigating a codebase (once the structure is established and understood).