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This page is for the code path - signatures and endpoints, not explanations. To build an agent without code, start with Build your first agent. The reference pages are tables and signatures, not explanations. For why a feature exists and when to reach for it, start from Durable runs, AI, Agent kit, or Integrations; every reference page links back to its owner.

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TypeScript SDK

Package and entry points

@duraton/sdk: install, imports, and the scoped entries for client-only and AI-only code.

Defining workflows

workflow: name, triggers, retry, flow control, and the optional step and tool manifests.

Steps

The StepContext and every step.* signature.

connect

Run a runner over an outbound WebSocket - no inbound URL.

REST client

createClient: events, runs, approvals, workflows, and errors.

AI steps

step.ai.generate, wrap, embed, loop, providers, cost, and the cache store.

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REST API

Overview

Base URL, authentication, conventions, and the resource map.

Runs

List, filter, paginate, stream, and summarise runs; read steps, logs, and AI spend.

Events and workflows

Send events, read the event log, and trigger a workflow by hand.

Control

Cancel, pause, resume, replay, retry from a step, and the control-action audit log.

Approvals

Decide parked runs.

Webhooks, runners, limits

Deliveries and endpoints, apps and runners, rate limits and defaults.

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Protocol

Protocol reference

How Duraton drives a runner: the endpoints, routing, and status codes.

Errors

Status codes, the 409 conflict table, and how the SDK surfaces them.