Follow Discord
Sweep 22 Oct 2026 · 04:32Z Build v2.1.308 527 read Stable v2.1.308 Latest v2.1.308 Next v2.1.308 Feeds RSS JSON llms.txt llms-full.txt Unofficial
HomeDocsClaude Code CLI 14 Oct 2026
One change · claude-code

Subagents in the SDK changedagent-sdk/subagents

Nearest release: v2.1.300, published 2 hours before upstream edited the page. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.

Upstream edited this page at 14 Oct 2026 16:42 UTC, give or take a minute or two: the time comes from Anthropic’s own sitemap rather than from a commit. This site recorded the change at 14 Oct 2026 17:07 UTC.

Upstream edited
Recorded here
Lines+1added
Lines−0removed
From line 150 where the diff opens
First seen 14 Aug 2026 this site's first read of the page
Recorded edits24to this page, all time

The whole hunk

from line 150, old and new numbered
/
lines
from line 150
150150| `mcpServers` | `(string \| object)[]` | No | MCP servers available to this agent, by name or inline config |
151151| `initialPrompt` | `string` | No | Auto-submitted as the first user turn when this agent runs as the main thread agent. Ignored when the agent is invoked as a subagent |
152152| `maxTurns` | `number` | No | Maximum number of agentic turns before the agent stops. When the agent reaches the limit, Claude Code returns its output marked as partial, and you can [resume the agent](#resume-subagents) to continue. The partial marking requires Claude Code v2.1.246 or later |
153| `autoCompactWindow` | `number` | No | Lower the [auto-compact window](/docs/en/sub-agents#subagent-auto-compact-window) for this agent when it runs as a subagent, to a token count from `100000` to `1000000`. Requires TypeScript Agent SDK v0.3.296 or later. The Python SDK's [`AgentDefinition`](/docs/en/agent-sdk/python#agentdefinition) doesn't have this field |
153154| `background` | `boolean` | No | Run this agent as a non-blocking background task when invoked |
154155| `omitClaudeMd` | `boolean` | No | Leave the user, project, and local CLAUDE.md files out of this agent's initial context; managed policy files still load. Ignored when the agent runs as the main thread agent. Requires TypeScript Agent SDK v0.3.271 or later. The Python SDK's [`AgentDefinition`](/docs/en/agent-sdk/python#agentdefinition) doesn't have this field |
155156| `effort` | `'low' \| 'medium' \| 'high' \| 'xhigh' \| 'max' \| number` | No | Reasoning effort level for this agent |
Feedback