@agentskit/core

The zero-dependency foundation that every AgentsKit package builds on.

Why

• Start without baggage — no external deps means it installs fast, audits clean, and works in any environment (Node, Deno, edge, browser)
• Build your own framework — all shared primitives, type contracts, and the chat state machine are here, ready to compose
• Types without the weight — import ToolDefinition, SkillDefinition, AgentEvent, and more without pulling in React or any adapter

Install

npm install @agentskit/core
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Quick example

import { createChatController, createInMemoryMemory } from '@agentskit/core'
import { anthropic } from '@agentskit/adapters'

const controller = createChatController({
  adapter: anthropic({ apiKey: process.env.ANTHROPIC_API_KEY, model: 'claude-sonnet-4-6' }),
  memory: createInMemoryMemory(),
})

await controller.send('Hello!')
console.log(controller.getState().messages)
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Next steps

• Pass tools from @agentskit/tools into the controller config for ReAct-style tool use
• Use the same adapter with createRuntime for headless agents, or with useChat for a browser UI
• Add persistence with @agentskit/memory or RAG with @agentskit/rag

Ecosystem

Docs

Full documentation