describeGoogleDocRange
Style probe for one spot: the paragraph styles (named style, alignment, borders, shading, indents, spacing, bullets) and text runs (font, size, bold/italic/underline, colors, links) overlapping a range, with the real document index of every paragraph and run so the result feeds straight into appl...
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What describeGoogleDocRange does on Google Drive
AI agents call describeGoogleDocRange to retrieve information from Google Drive without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
tabId | string | — | Optional. Tab to probe (from listDocumentTabs). If omitted, uses the first/default tab. |
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 |
endIndex | number | — | End index (exclusive). Defaults to startIndex + 1. Only with startIndex. |
documentId | string | Yes | The document ID |
startIndex | number | — | Start index (1-based). Use this or textToFind. |
textToFind | string | — | Describe the styling at this exact text (case-sensitive). Use this or startIndex. |
matchInstance | number | — | Which occurrence of textToFind (1-based, default 1) |
Parameters from the server's own tool schema.
Why describeGoogleDocRange is rated Low
Even though describeGoogleDocRange only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.
Risk signalsBulk/mass operation — affects multiple targets
Attacks that exploit this kind of access
The rule that runs describeGoogleDocRange 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 describeGoogleDocRange, this is the rule to start with:
describeGoogleDocRange is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Google Drive, apply this rule, and every describeGoogleDocRange call is checked against it from then on.
Questions about describeGoogleDocRange
Style probe for one spot: the paragraph styles (named style, alignment, borders, shading, indents, spacing, bullets) and text runs (font, size, bold/italic/underline, colors, links) overlapping a range, with the real document index of every paragraph and run so the result feeds straight into applyParagraphStyle or applyTextStyle. Target it with startIndex (optionally endIndex) or with textToFind, not both. Describes one tab's body; headers, footers, and footnotes are separate index spaces and are not included. Reports the document's revisionId, so the same read that gives you the indices gives you the lock to pass as ifRevisionId on the write. It is categorised as a Read tool in the Google Drive MCP Server, which means it retrieves data without modifying state.
describeGoogleDocRange accepts 7 parameters: tabId, account, endIndex, documentId, startIndex, textToFind, matchInstance. Required: documentId. 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 describeGoogleDocRange: 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.
describeGoogleDocRange is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the describeGoogleDocRange 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 describeGoogleDocRange. 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.
describeGoogleDocRange 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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