[Agents] Add Sub-agents, Sessions, and Think reference docs#29882
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threepointone merged 1 commit intoproductionfrom Apr 15, 2026
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[Agents] Add Sub-agents, Sessions, and Think reference docs#29882threepointone merged 1 commit intoproductionfrom
threepointone merged 1 commit intoproductionfrom
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Add new API reference pages for Sessions, Sub-agents, and Think (persistent session storage, child Durable Object agents with RPC, and the Think opinionated chat framework). Update the Agents API index to include Sub-agents, Sessions, and Think. Clarify subagent delegation in chat-agents (note about in-process ToolLoopAgent vs Durable Object sub-agents). Rename/standardize chat recovery flag in durable-execution (unstable_chatRecovery → chatRecovery) and update related links/reference text. Also include minor related adjustments in long-running agents documentation.
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Summary
Adds three new API reference pages for the Agents SDK, covering experimental features that were previously undocumented in cloudflare-docs:
Agent.subAgent(),abortSubAgent(),deleteSubAgent(),SubAgentStub<T>typing, storage isolation, naming, patterns (parallel, nested, callback streaming), and limitations.SessionAPI: builder pattern, tree-structured messages, branching, context blocks (4 provider types), AI tools, compaction,SessionManager, forking, cross-session search, storage tables, and custom providers.@cloudflare/think: quick start, Think vs AIChatAgent comparison, configuration, session integration, tools (7-layer merge order, workspace, code execution, browser/CDP, extensions), all 8 lifecycle hooks, client tools, message concurrency, sub-agent RPC viachat(), programmatic turns, chat recovery, and stability detection.Also updates three existing pages with cross-links:
agents-api.mdx— added Sub-agents, Sessions, Think rows to the API reference tablelong-running-agents.mdx— added link from "Delegating to sub-agents" to the new API referencechat-agents.mdx— added note in "Subagent delegation" distinguishing in-process AI SDK subagents from Durable Object sub-agentsSource material adapted from the agents-repo internal docs (
docs/think/,docs/sessions.md).Documentation checklist
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