Get a message by ID
AI agents call get_message 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 data by identifier. It performs a simple lookup operation typical of Read category tools (get, fetch, query). No data is created, modified, deleted, or executed. The low severity reflects minimal risk: retrieving a message poses no blast radius risk to the system or data integrity.
From the tool's definition Tool name is 'get_message' and description states 'Get a message by ID'. This is a retrieval operation with no side effects—it queries and returns an existing message without modifying, deleting, or executing anything.
Attacks that exploit this kind of access
Get a message by ID. 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_message: 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_message 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_message 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_message. 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_message 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 →