Get messages that mention a specific user
AI agents call get_mentions to retrieve information from Follow Plan MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves or queries existing data (messages mentioning a user) without side effects. It does not create, modify, delete, or execute any operations. It falls squarely into the Read category with low severity since misuse would only expose message data visible to the querying user's context.
From the tool's definition Tool name 'get_mentions' and description 'Get messages that mention a specific user' indicate a query/retrieval operation with no modification, deletion, or execution of external code.
Attacks that exploit this kind of access
Get messages that mention a specific user. It is categorised as a Read tool in the Follow Plan MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Follow Plan MCP Server MCP server in PolicyLayer and add a rule for get_mentions: 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 Follow Plan MCP Server. Nothing to install.
get_mentions 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 get_mentions 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 get_mentions. 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.
get_mentions is provided by the Follow Plan MCP Server MCP server (vibeclasses/follow-plan-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.
Teams ship this data inside their own products. See what a licence covers →