listFolderContents
Lists files and subfolders within a Drive folder. Use folderId=
This record as markdown: /tools/a-bonus-google-docs-mcp/listfoldercontents.md
What listFolderContents does on Claude MCP x Google Docs
AI agents call listFolderContents to retrieve information from Claude MCP x Google Docs without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why listFolderContents is rated Low
This tool retrieves directory contents from Google Drive without creating, modifying, or deleting any data. It has no side effects and is a straightforward read operation. Severity is low because listing folder contents poses minimal risk even if misused by an agent—the worst outcome is exposure of folder structure that the agent already has access to via the folderId parameter.
From the tool's definition Tool name 'listFolderContents' and description 'Lists files and subfolders within a Drive folder' indicate a query/retrieval operation with no modification of data.
Attacks that exploit this kind of access
The rule that runs listFolderContents safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Claude MCP x Google Docs, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For listFolderContents, this is the rule to start with:
listFolderContents 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 Claude MCP x Google Docs, apply this rule, and every listFolderContents call is checked against it from then on.
Questions about listFolderContents
Lists files and subfolders within a Drive folder. Use folderId=. It is categorised as a Read tool in the Claude MCP x Google Docs MCP Server, which means it retrieves data without modifying state.
Register the Claude MCP x Google Docs MCP server in PolicyLayer and add a rule for listFolderContents: 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 Claude MCP x Google Docs. Nothing to install.
listFolderContents 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 listFolderContents 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 listFolderContents. 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.
listFolderContents is provided by the Claude MCP x Google Docs MCP server (a-bonus/google-docs-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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