google-workspace.chat_messages_list

List messages in a Google Chat space

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.chat-messages-list.md

WHAT IT DOES

What google-workspace.chat_messages_list does on CoWork OS

AI agents call google-workspace.chat_messages_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.chat_messages_list is rated Low

This tool queries existing data from Google Chat without creating, modifying, deleting, or executing operations. The verb 'list' and the passive operation of retrieving messages confirm it is a Read category tool with low severity, as the blast radius of accidental misuse is minimal—only exposure of existing chat data.

From the tool's definition Tool name contains 'list' and description states 'List messages in a Google Chat space' — a retrieval operation with no modification or side effects.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs google-workspace.chat_messages_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.chat_messages_list, this is the rule to start with:

google-workspace.chat_messages_list Allowed

google-workspace.chat_messages_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.chat_messages_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.chat_messages_list call is checked against it from then on.

FAQ

Questions about google-workspace.chat_messages_list

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

List messages in a Google Chat space. 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.chat_messages_list? +

Register the CoWork OS MCP server in PolicyLayer and add a rule for google-workspace.chat_messages_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.chat_messages_list? +

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

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

Yes. Add a rate_limit block to the google-workspace.chat_messages_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.chat_messages_list completely? +

Set action: deny in the PolicyLayer policy for google-workspace.chat_messages_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.chat_messages_list? +

google-workspace.chat_messages_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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