deleteDimensionGroup
Remove a row or column group from a sheet. The rows/columns themselves are kept; only the grouping is removed. Indices are 0-based and the interval is half-open [startIndex, endIndex). Use listDimensionGroups to read back an existing group's range and pass it in full: the API decrements the group...
This record as markdown: /tools/ark7-google-drive-mcp/deletedimensiongroup.md
What deleteDimensionGroup does on Google Drive
AI agents call deleteDimensionGroup to permanently remove resources in Google Drive, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
| Parameter | Type | Required | Description |
|---|---|---|---|
account | string | — | Alias of the Google account to target. Optional — defaults to the session/global default account, or the sole authenticated account. Run manage_accounts list to |
sheetId | number | Yes | Sheet ID (from getSpreadsheetInfo / listSheets). The default first sheet is usually 0. |
endIndex | number | Yes | 0-based end index (exclusive); must be greater than startIndex |
dimension | string | Yes | Group rows or columns |
startIndex | number | Yes | 0-based start index (inclusive) |
spreadsheetId | string | Yes | Spreadsheet ID |
Parameters from the server's own tool schema.
Why deleteDimensionGroup is rated Critical
An AI agent that decides to call deleteDimensionGroup doesn't hesitate, doesn't double-check, and doesn't stop at one. Whatever it removes from Google Drive is gone. There is no undo for destructive operations.
Risk signalsBulk/mass operation — affects multiple targets
Attacks that exploit this kind of access
The rule that runs deleteDimensionGroup safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Google Drive, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For deleteDimensionGroup, this is the rule to start with:
deleteDimensionGroup is removed from the agent's tool list entirely, so the agent never calls it. The rest of the server keeps working.
The button opens the PolicyLayer dashboard: create your workspace, connect Google Drive, apply this rule, and every deleteDimensionGroup call is checked against it from then on.
Questions about deleteDimensionGroup
Remove a row or column group from a sheet. The rows/columns themselves are kept; only the grouping is removed. Indices are 0-based and the interval is half-open [startIndex, endIndex). Use listDimensionGroups to read back an existing group's range and pass it in full: the API decrements the group depth of every dimension in the range rather than matching a whole group, so a range that only partially overlaps a group shrinks that group instead of removing it. With a depth-1 group over columns B:E and a depth-2 group over C:D, deleting D:E leaves depth-1 over B:D and depth-2 over C:C. It is categorised as a Destructive tool in the Google Drive MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
deleteDimensionGroup accepts 6 parameters: account, sheetId, endIndex, dimension, startIndex, spreadsheetId. Required: sheetId, endIndex, dimension, startIndex, spreadsheetId. The full parameter table on this page comes from the server's own tool schema.
Register the Google Drive MCP server in PolicyLayer and add a rule for deleteDimensionGroup: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Google Drive. Nothing to install.
deleteDimensionGroup is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the deleteDimensionGroup rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for deleteDimensionGroup. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
deleteDimensionGroup is provided by the Google Drive MCP server (@ark7/google-drive-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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