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Sweep 22 Oct 2026 · 21:04Z Build v2.1.309 528 read Stable v2.1.308 Latest v2.1.309 Next v2.1.309 Feeds RSS JSON llms.txt llms-full.txt Unofficial
HomeDocsClaude Code CLI 7 Oct 2026
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Agent SDK reference - TypeScript changedagent-sdk/typescript

Nearest release: v2.1.292, published 10 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 7 Oct 2026 04:04 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 7 Oct 2026 04:07 UTC.

Upstream edited
Recorded here
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From line 1,205 where the diff opens
First seen 14 Aug 2026 this site's first read of the page
Recorded edits115to this page, all time

The whole hunk

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This page is larger than the 256 KiB this site keeps, so one side of the diff below stops where the stored text does.

from line 1205
12051205| `mcpServer` | `{ name: string; source: string }` | For an `mcp__*` tool, the MCP server that serves it and where that server's definition came from, with the fields of [`McpServerProvenance`](#mcpserverprovenance). Absent for other tools. Requires Agent SDK v0.3.274 or later |
12061206| `decisionReason` | `string` | Explains why this permission request was triggered |
12071207| `defaultToNo` | `boolean` | When `true`, a single stray keystroke must not approve this request: open your prompt on its decline option, don't pre-select approve, and offer no one-key approve shortcut. Requires Agent SDK v0.3.268 or later |
1208| `suppressAlwaysAllowRule` | `boolean` | When `true`, don't offer a persistent always-allow choice for this request, because the rule it would write grants more than the request's own action. Requires Agent SDK v0.3.268 or later |
1208| `suppressAlwaysAllowRule` | `boolean` | When `true`, don't offer a persistent always-allow choice for this request. Requires Agent SDK v0.3.268 or later |
12091209| `toolUseID` | `string` | Unique identifier for this specific tool call within the assistant message |
12101210| `agentID` | `string` | If running within a sub-agent, the sub-agent's ID |
12111211| `requestId` | `string` | The `control_request` envelope's `request_id`. A `control_response` your application sends outside the SDK, such as a signed HTTP POST, must echo this value so the Claude Code process can match the reply to the request |
from line 5408
54085408 utilization?: number;
54095409 errorCode?: "credits_required";
54105410 canUserPurchaseCredits?: boolean;
5411 hasCharge
5411 hasChargeableSavedPaymentMethod?: boolean;
5412 };
5413 uuid: UUID;
5414 session_id: string;
5415 
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