@agentskit/runtime

When to reach for it

• You want an agent without a UI.
• You need durable execution (resume after a crash).
• You want ready-made multi-agent topologies.
• You want to race adapters (speculate) or run on cron / webhooks.

Install

npm install @agentskit/runtime @agentskit/adapters

Hello world

import { createRuntime } from '@agentskit/runtime'
import { anthropic } from '@agentskit/adapters'

const runtime = createRuntime({
  adapter: anthropic({ apiKey: process.env.ANTHROPIC_API_KEY!, model: 'claude-sonnet-4-6' }),
})

const result = await runtime.run('Summarize the quarterly report.')
console.log(result.content)

Surface

• createRuntime(config) — headless agent with tools / memory / skills / observers.
• createSharedContext — typed context across tools.
• createDurableRunner + createInMemoryStepLog / createFileStepLog — Temporal-style step log.
• supervisor · swarm · hierarchical · blackboard — multi-agent topologies.
• speculate — race adapters, abort losers.
• createCronScheduler + createWebhookHandler — background agents.

Recipes

• Durable execution
• Multi-agent topologies
• Speculative execution
• Background agents
• Research team

Related

• Concepts: Runtime
• Agents (deep dive)
• For agents: runtime

Source

npm: @agentskit/runtime · repo: packages/runtime