@W-23870895: Document allData behavior

docs/docs/intro.md

@@ -48,9 +48,9 @@ Slack channel in the Tableau #DataDev workspace.
 | [list-flow-runs](tools/flows/list-flow-runs.md)                                                                       | Retrieves the run history (executions) of Tableau Prep flows on a site ([REST API][list-flow-runs])                                 | All SKUs     |
 | [list-flow-tasks](tools/flows/list-flow-tasks.md)                                                                     | Retrieves the scheduled flow run tasks (schedules) for Tableau Prep flows on a site ([REST API][list-flow-tasks])                   | All SKUs     |
 | [delete-content](tools/content/delete-content.md)                                                                     | Admin-only. Two-phase (preview/confirm) delete of a workbook, data source, or extract refresh task ([REST API][delete-workbook], [REST API][delete-datasource], [REST API][delete-extract-refresh-task]) | All SKUs     |
-| [get-view-data](tools/views/get-view-data.md)                                                                         | Retrieves data in CSV format for the specified view in a Tableau workbook. *Note: the get-view-data api currently has a limitation that when used on a dashboard sheet type, it will only return data for the first worksheet in the dashboard. This will be fixed in the 26.3 fall release.* ([REST API][get-view-data])               | All SKUs     |
+| [get-view-data](tools/views/get-view-data.md)                                                                         | Retrieves data for the specified view in a Tableau workbook. Tableau REST API 3.30 and later returns all server-exported sheet parts; earlier versions return CSV for the requested worksheet, or the first worksheet of a dashboard. ([REST API][get-view-data])               | All SKUs     |
 | [get-view-image](tools/views/get-view-image.md)                                                                       | Retrieves an image for the specified view in a Tableau workbook ([REST API][get-view-image])                        | All SKUs     |
-| [get-custom-view-data](tools/views/get-custom-view-data.md)                                                           | Retrieves data in CSV format for the specified custom view in a Tableau workbook. *Note: the same limitation of get-view-data exists for this tool.* ([REST API][get-custom-view-data]) | All SKUs     |
+| [get-custom-view-data](tools/views/get-custom-view-data.md)                                                           | Retrieves CSV data for the specified custom view in a Tableau workbook. A dashboard-based custom view returns its first worksheet. ([REST API][get-custom-view-data]) | All SKUs     |
 | [get-custom-view-image](tools/views/get-custom-view-image.md)                                                         | Retrieves an image for a saved custom view ([REST API][get-custom-view-image])                                      | All SKUs     |
 | [query-datasource](tools/data-qna/query-datasource.md)                                                                | Retrieves json formatted data from a published data source by executing VizQL Data Service requests ([VDS API][vds]) | All SKUs     |
 | [list-all-pulse-metric-definitions](tools/pulse/list-all-pulse-metric-definitions.md)                                 | Lists all Pulse metric definitions on a specific Tableau Cloud site. ([Pulse API][pulse])                           | All SKUs     |

docs/docs/tools/views/get-view-data.md

@@ -4,11 +4,13 @@ sidebar_position: 3
 
 # Get View Data
 
-Retrieves data in comma separated value (CSV) format for the specified view in a Tableau workbook.
+Retrieves data for the specified view in a Tableau workbook.
 
 ## APIs called
 
 - [Query View Data](https://help.tableau.com/current/api/rest_api/en-us/REST/rest_api_ref_workbooks_and_views.htm#query_view_data)
+  for Tableau REST API versions below 3.30
+- `GET /sites/{siteId}/views/{viewId}/allData` for Tableau REST API version 3.30 and later
 - [Get View](https://help.tableau.com/current/api/rest_api/en-us/REST/rest_api_ref_workbooks_and_views.htm#get_view)
   (if applicable [tool scoping](../../configuration/mcp-config/tool-scoping.md) is enabled)
 
@@ -32,20 +34,57 @@ Example: `{ "year": "2017" }`
 
 ## Response behavior
 
-The tool returns one of two result shapes:
+The result shape depends on the Tableau REST API version.
+
+### Tableau REST API 3.30 and later
+
+The tool requests allData and returns a JSON array containing every sheet part exported by Tableau,
+in the response order. Each successful sheet contains its name, columns, rows, and an `OK` status.
+An unavailable sheet is returned with an `ERROR` status, its error detail when available, and empty
+columns and rows; it does not prevent healthy sheets from being returned.
+
+For valid multipart response parts, the tool does not select, synthesize a manifest for, locally
+filter, or reject sheets. Duplicate sheet names are returned as distinct parts. The allData request
+is blocking and returns each sheet in full, so very large responses can exceed practical MCP
+context limits. Request-level failures and malformed multipart responses fail the whole tool call;
+they do not return partial results or fall back to the legacy CSV endpoint.
+
+```json
+[
+  {
+    "sheetName": "Sales",
+    "columns": ["Region", "Sales"],
+    "rows": [["West", "100"]],
+    "sheetStatus": "OK"
+  },
+  {
+    "sheetName": "Profit",
+    "columns": [],
+    "rows": [],
+    "sheetStatus": "ERROR",
+    "errorDetail": "The worksheet is unavailable."
+  }
+]
+```
+
+### Tableau REST API versions below 3.30
+
+The tool uses Query View Data and returns CSV for the requested worksheet, or the first worksheet
+when the requested view is a dashboard. It returns one of two result shapes:
 
 - **`MCP_S3_BUCKET` unset (default):** returns the CSV as a single JSON-encoded text string
   (`JSON.stringify(csv)`), with newlines escaped as `\n`.
-- **`MCP_S3_BUCKET` set:** returns a `resource_link` with a short-lived presigned URL to the CSV
-  file in S3, instead of inlining the data.
+- **`MCP_S3_BUCKET` set with `view-data-file-mode` enabled:** returns a `resource_link` with a
+  short-lived presigned URL to the CSV file in S3, instead of inlining the data. If the feature is
+  disabled or the upload fails, the tool returns the CSV inline.
 
-## Example result (default)
+## Example legacy result (default)
 
 ```
 "Country/Region,State/Province,Profit Ratio,Latitude (generated),Longitude (generated)\nCanada,Alberta,19.5%,53.41,-114.42\nCanada,British Columbia,4.2%,54.9464,-125.1024\nCanada,Manitoba,8.2%,55.0085,-97.1771\n"
 ```
 
-## Example result (S3 mode)
+## Example legacy result (S3 mode)
 
 ```json
 {
@@ -56,3 +95,11 @@ The tool returns one of two result shapes:
   "description": "View data (CSV) stored in S3. This is a short-lived presigned URL."
 }
 ```
+
+## Data and limits
+
+Returned data reflects the view after Tableau applies the view filters supplied through
+`viewFilters`. It does not return direct datasource rows.
+
+The tool has no local cache and does not expose an API cache-age control. Streaming, pagination,
+and direct VizQL Data Service fallback are not supported by this tool.

package.json

@@ -1,7 +1,7 @@
 {
   "name": "@tableau/mcp-server",
   "description": "Helping agents see and understand data.",
-  "version": "4.10.0",
+  "version": "4.10.1",
   "repository": {
     "type": "git",
     "url": "git+https://github.com/tableau/tableau-mcp.git"