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HomeDocsModel Context Protocol 28 Sep 2026
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Elicitation changedspecification/2025-11-25/client/elicitation

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Upstream edited this page at 28 Sep 2026 21:57 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 28 Sep 2026 22:07 UTC.

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8181All elicitation requests **MUST** include the following parameters:
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83| Name | Type | Options | Description |
84| --------- | ------ | ------------- | -------------------------------------------------------------------------------------- |
85| `mode` | string | `form`, `url` | The mode of the elicitation. Optional for form mode (defaults to `"form"` if omitted). |
86| `message` | string | | A human-readable message explaining why the interaction is needed. |
83| Name | Type | Options | Description |
84| - | - | - | - |
85| `mode` | string | `form`, `url` | The mode of the elicitation. Optional for form mode (defaults to `"form"` if omitted). |
86| `message` | string | | A human-readable message explaining why the interaction is needed. |
8787 
8888The `mode` parameter specifies the type of elicitation:
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9999Form mode elicitation requests **MUST** either specify `mode: "form"` or omit the `mode` field, and include these additional parameters:
100100 
101| Name | Type | Description |
102| ----------------- | ------ | -------------------------------------------------------------- |
101| Name | Type | Description |
102| - | - | - |
103103| `requestedSchema` | object | A JSON Schema defining the structure of the expected response. |
104104 
105105#### Requested Schema
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334334URL mode elicitation requests **MUST** specify `mode: "url"`, a `message`, and include these additional parameters:
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336| Name | Type | Description |
337| --------------- | ------ | ----------------------------------------- |
338| `url` | string | The URL that the user should navigate to. |
339| `elicitationId` | string | A unique identifier for the elicitation. |
336| Name | Type | Description |
337| - | - | - |
338| `url` | string | The URL that the user should navigate to. |
339| `elicitationId` | string | A unique identifier for the elicitation. |
340340 
341341The `url` parameter **MUST** contain a valid URL.
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