Messages changedapi/messages
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Lines−0removed
From line
23
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14 Aug 2026
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Recorded edits27to this page, all time
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from line 23
2323
2424- `"anthropic-workspace-id": optional string`
2525
26 Optional header to select the Workspace for this request. The value is a Workspace ID (for example, `wrkspc_011CZkZaBF1tNoB5wlCeusgy`).
27
28 Only needed for credentials that can act on more than one Workspace. A credential that belongs to a specific Workspace may omit it; if sent, it must match that Workspace.
29
2630### Body parameters
2731
2832- `max_tokens: number`
from line 4450
44464450
44474451- `"anthropic-workspace-id": optional string`
44484452
4453 Optional header to select the Workspace for this request. The value is a Workspace ID (for example, `wrkspc_011CZkZaBF1tNoB5wlCeusgy`).
4454
4455 Only needed for credentials that can act on more than one Workspace. A credential that belongs to a specific Workspace may omit it; if sent, it must match that Workspace.
4456
44494457### Body parameters
44504458
44514459- `messages: array of MessageParam`
from line 8416
84088416 A tab this call's execution opened that remains open at its end —
84098417 the creation delta of the `tabs` inventory, not an event log.
84108418
8411 Carries only the `tab_id`; the tab's `title` and `url` live on its
8412 `tabs` entry, which must include the same `tab_id`. A tab opened
8413 during a failed call gets no deferred `tab_opened`; it simply appears
8414 in the next result's `tabs` inventory.
8415
8416 - `type: "tab_opened"`
8417
8418 - `tab_id: string`
8419
8420 The `tab_id` of the opened tab, present in `tabs`.
8421
8422 maxLength: 4096, minLength: 1, pattern: ^[^\x00-\x1f\x7f-\x9f\u2028\u2029]*$
8423
8424### Browser State Tab Entry
8425
8426- `BrowserStateTabEntry object`
8427
8428 One open browser tab reported in a `browser_state` block's `tabs`
8429 inventory.
8430
8431 `tab_id` is the caller-assigned identifier for
8419 C
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