authTestFileAccess
Run auth diagnostics against Drive API/file access
This record as markdown: /tools/ark7-google-drive-mcp/authtestfileaccess.md
What authTestFileAccess does on Google Drive
AI agents call authTestFileAccess 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 |
|---|---|---|---|
fileId | string | — | Optional file ID for targeted access check |
Parameters from the server's own tool schema.
Why authTestFileAccess is rated Low
This is a diagnostic/testing tool that checks authentication status and file access permissions. It retrieves information about the current authentication state and accessible resources, which is a read-only operation with no side effects, modifications, or destructive capability. The minimal blast radius from misuse is informational disclosure only.
From the tool's definition Tool name 'authTestFileAccess' and description 'Run auth diagnostics against Drive API/file access' indicate querying/testing authentication and file access permissions without modifying data or triggering external operations.
Attacks that exploit this kind of access
The rule that runs authTestFileAccess 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 authTestFileAccess, this is the rule to start with:
authTestFileAccess 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 authTestFileAccess call is checked against it from then on.
Questions about authTestFileAccess
Run auth diagnostics against Drive API/file access. It is categorised as a Read tool in the Google Drive MCP Server, which means it retrieves data without modifying state.
authTestFileAccess accepts 1 parameter: fileId. 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 authTestFileAccess: 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.
authTestFileAccess 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 authTestFileAccess 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 authTestFileAccess. 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.
authTestFileAccess 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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