List AI assistants (personas) configured in a workspace.
AI agents call list_assistants to retrieve information from RunWhen Platform MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool retrieves and enumerates existing assistants without creating, modifying, deleting, or executing any operations. It is purely informational and has minimal blast radius if misused by an agent—it can only reveal what assistants exist in a workspace.
From the tool's definition Tool name and description indicate a listing/querying operation: 'List AI assistants (personas) configured in a workspace.' This is a retrieval action with no side effects.
Attacks that exploit this kind of access
List AI assistants (personas) configured in a workspace. It is categorised as a Read tool in the RunWhen Platform MCP MCP Server, which means it retrieves data without modifying state.
Register the RunWhen Platform MCP server in PolicyLayer and add a rule for list_assistants: 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 RunWhen Platform MCP. Nothing to install.
list_assistants 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_assistants 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_assistants. 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_assistants is provided by the RunWhen Platform MCP server (runwhen-contrib/runwhen-platform-mcp). 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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