Follow Discord
Sweep 01 Oct 2026 · 17:27Z Build v2.1.287 508 read Stable v2.1.285 Latest v2.1.287 Next v2.1.287 Feeds RSS JSON llms.txt llms-full.txt Unofficial
HomeDocsClaude Code CLI 1 Oct 2026
One change · claude-code

Agent SDK reference - TypeScript changedagent-sdk/typescript

Nearest release: v2.1.287, published 6 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 1 Oct 2026 23:04 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 1 Oct 2026 23:07 UTC.

Upstream edited
Recorded here
Lines+2added
Lines−2removed
From line 4,630 where the diff opens
First seen 14 Aug 2026 this site's first read of the page
Recorded edits70to this page, all time

The whole hunk

from line 4630, old and new numbered
/
lines

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 4630
46304630```
46314631 
46324632<Warning>
4633 The `context-1m-2025-08-07` beta is retired as of April 30, 2026. Passing this value with Claude Sonnet 4.5 or Sonnet 4 has no effect, and requests that exceed the standard 200k-token context window return an error. To use a 1M-token context window, migrate to [Claude Opus 5.5, Claude Opus 5, Claude Sonnet 5, Claude Sonnet 4.6, Claude Opus 4.6, Claude Opus 4.7, or Claude Opus 4.8](https://platform.claude.com/docs/en/about-claude/models/overview), which include 1M context at standard pricing with no beta header required.
4633 On the Claude API, the `context-1m-2025-08-07` beta is retired for Claude Sonnet 4.5 and Claude Sonnet 4. If you still pass it with either model, requests that exceed the standard 200K-token context window return an error, so remove it from `betas`. To run a session with a 1M-token context window, set `model` to a model that [runs with the 1M window by default](/docs/en/model-config#extended-context), such as `claude-sonnet-5-5` or `claude-opus-5-5`. For a model that reaches 1M only through its `[1m]` variant, append the suffix to the model ID, as in `claude-opus-4-6[1m]`.
46344634</Warning>
46354635 
46364636### `SlashCommand`
from line 4670
46704670| Field | Type | Description |
46714671| :- | :- | :- |
46724672| `value` | `string` | Model identifier to pass in API calls |
4673| `resolvedModel` | `string \| undefined` | Canonical wire model ID that this entry's `value` resolves to. An alias entry such as `sonnet` resolves to an explicit model ID such as `claude-sonnet-5`, so a host can match a stored explicit model ID against the alias entry that covers it. Requires Claude Code v2.1.197 or later. |
4673| `resolvedModel` | `string \| undefined` | The model ID that this entry's `value` resolves to, such as `claude-sonnet-5-5` for the `sonnet` alias entry. Requires Claude Code v2.1.197 or later. |
46744674| `displayName` | `string` | Human-readable display name |
46754675| `description` | `string` | Description of the model's capabilities |
46764676| `supportsEffort` | `boolean \| undefined` | Whether this model supports effort levels |
from line 5454
54545454| `network` | [`SandboxNetworkConfig`](#sandboxnetworkconfig) | `undefined` | Network-specific sandbox configuration |
54555455| `filesystem` | [`SandboxFilesystemConfig`](#sandboxfilesystemconfig) | `undefined` | Filesystem-specific sandbox configuration for read/write restrictions |
54565456| `ignoreViolations` | `Record<string, string[]>` | `undefined` | Map of command substrings, or `*` for every command, to substrings of the violation text to ignore, such as `{ "*": ['/etc/hosts'] }`; see [`sandbox.ignoreViolations`](/docs/en/settings-reference#sandbox-ignoreviolations) |
5457| `enableWeakerNestedSandbox` | `b
5457| `enableWeakerNestedSandbox` | `boolean` | `false` | Enable a weaker nested sandbox for compatibility |
5458| `ripg
Feedback