List all logical groups on the canvas and their member element ids (tombstoned members excluded). Read-only.
AI agents call list_groups to retrieve information from Whiteboard without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves metadata about group organization on a whiteboard canvas. It performs no state changes, executes no external operations, and cannot modify or delete data. The read-only designation and retrieval-only nature clearly place it in the Read category with low severity, as misuse would only expose canvas structure information rather than cause any actual harm.
From the tool's definition Tool description explicitly states "Read-only" and the operation "list all logical groups on the canvas and their member element ids" is a query that retrieves information without modification or side effects.
Attacks that exploit this kind of access
List all logical groups on the canvas and their member element ids (tombstoned members excluded). Read-only. It is categorised as a Read tool in the Whiteboard MCP Server, which means it retrieves data without modifying state.
Register the Whiteboard MCP server in PolicyLayer and add a rule for list_groups: 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 Whiteboard. Nothing to install.
list_groups 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 list_groups 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 list_groups. 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.
list_groups is provided by the Whiteboard MCP server (kamiazya/whiteboard). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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