Speck.js: AI Agents with Persistent Memory in One Line of Code

Peter Pagano@SpeckOs — Mon, 15 Dec 2025 21:12:38 +0000

Adding AI to web apps typically requires 50+ lines of boilerplate. State for messages, loading states, error handling, API calls, stream management, history tracking — the list goes on.

Speck.js eliminates all of that.

One Line. Full AI Chat.

<Agent.Chat purpose="You are a helpful assistant" />

That's a complete chat interface with streaming responses, conversation history, and error handling. No state management. No useEffect. No boilerplate.

Persistent Memory — A Framework First

Speck.js v0.4.1 introduces something no other framework offers: built-in persistent memory.

<Agent.Chat 
  id="support-bot"
  purpose="You are a helpful assistant"
  memory={true}
/>

With memory={true}, agents remember conversations across browser sessions. Page refreshes, browser restarts, even system reboots — the memory persists. No external database configuration required.

How Memory Works

Session IDs stored in localStorage
Conversations saved to local SQLite via libSQL
Last 100 interactions automatically loaded into context
Each agent maintains isolated memory via the id prop

Zero Imports

Speck.js components auto-discover each other:

<App>
  <Header />
  <ChatBot />
  <Footer />
</App>

No import statements. The compiler resolves dependencies automatically.

Getting Started

npm create speck-app@latest my-app
cd my-app
npm run dev

Add an Anthropic API key to .env and start building AI-native applications immediately.

Developer Tools

Speck.js includes full tooling support:

🧩 VS Code Extension — Syntax highlighting and IntelliSense for .speck files
⚡ Hot Reload — Instant compilation on save
🛠️ Built-in Dev Server — API proxy included for seamless Claude integration

On the Roadmap

Semantic memory recall via vector search
Multi-agent coordination
Additional agent types beyond chat

Feedback welcome. What features would be most valuable?

Forem: Peter Pagano@SpeckOs