Open-source TypeScript tools for production AI interfaces — agents, generative UI, chat, streaming parsers, and fast data grids.

AI products keep rebuilding the same surfaces: an agent runtime, a chat shell, a renderer for tool output, a parser that copes with mid-stream JSON, a grid that handles wrapped text without collapsing under load. Cacheplane ships those primitives as focused, standards-based TypeScript libraries — no proprietary schemas, no hosted lock-in, no black boxes.

A TypeScript meta-framework for authoring agents and workflows. Filesystem-based route discovery, the agent() descriptor, route-local tools, per-route middleware, type generation, a local development runtime, and dawn build for producing LangGraph Platform deployment artifacts.

Repository

Agent UI primitives and LangGraph streaming adapters for Angular 20+. @ngaf/langgraph is the Angular equivalent of LangGraph's React useStream() — signal-driven access to messages, tool calls, interrupts, subagents, regenerate, and thread history. @ngaf/chat is the accessible, production-ready chat surface that consumes it. Generative UI ships through the same agent contract on open standards (Vercel json-render, Google A2UI).

Repository · @ngaf/langgraph

Streaming parsers for AI interfaces. LLMs routinely emit JSON and Markdown mid-token, mid-string, mid-list, mid-table; Cacheplane gives you a typed tree that grows in place, with stable node identity so React memoization, Angular OnPush, Solid signals, and virtualized renderers all keep working. Truncation tolerant, evented, structurally shared.

Repository · @cacheplane/partial-json · @cacheplane/partial-markdown

A text-aware data grid built around the wrapped-text and variable-height wedge that defeats most virtualized grids. Framework-agnostic core with a React adapter, an estimate-first text layout pipeline, and a benchmark lab that ships hypothesis-bearing artifacts so the performance claims are auditable.

Repository

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• Contact: hello@cacheplane.ai