google-workspace.calendar_calendars_list

List calendars visible to the authenticated Google Calendar user

SERVERCoWork OS SOURCECoWork-OS/CoWork-OS

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/cowork-os/google-workspace.calendar-calendars-list.md

WHAT IT DOES

What google-workspace.calendar_calendars_list does on CoWork OS

AI agents call google-workspace.calendar_calendars_list to retrieve information from CoWork OS without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why google-workspace.calendar_calendars_list is rated Low

This tool retrieves metadata about calendars owned by or shared with the authenticated user. It is read-only, has no side effects, and poses minimal risk even if invoked by an agent without explicit user consent, as it only exposes calendar visibility information the user already has access to. Severity is low because the information returned is already known to the authenticated account holder.

From the tool's definition Tool performs "List calendars visible to the authenticated Google Calendar user" — a pure retrieval operation with no modification, deletion, or execution semantics.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs google-workspace.calendar_calendars_list safely

PolicyLayer is an MCP gateway: it sits between your AI agents and CoWork OS, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For google-workspace.calendar_calendars_list, this is the rule to start with:

google-workspace.calendar_calendars_list Allowed

google-workspace.calendar_calendars_list is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "google-workspace.calendar_calendars_list": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect CoWork OS, apply this rule, and every google-workspace.calendar_calendars_list call is checked against it from then on.

FAQ

Questions about google-workspace.calendar_calendars_list

What does the google-workspace.calendar_calendars_list tool do? +

List calendars visible to the authenticated Google Calendar user. It is categorised as a Read tool in the CoWork OS MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on google-workspace.calendar_calendars_list? +

Register the CoWork OS MCP server in PolicyLayer and add a rule for google-workspace.calendar_calendars_list: 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 CoWork OS. Nothing to install.

What risk level is google-workspace.calendar_calendars_list? +

google-workspace.calendar_calendars_list is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit google-workspace.calendar_calendars_list? +

Yes. Add a rate_limit block to the google-workspace.calendar_calendars_list 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.

How do I block google-workspace.calendar_calendars_list completely? +

Set action: deny in the PolicyLayer policy for google-workspace.calendar_calendars_list. 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.

What MCP server provides google-workspace.calendar_calendars_list? +

google-workspace.calendar_calendars_list is provided by the CoWork OS MCP server (CoWork-OS/CoWork-OS). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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