Get detailed information for a specific message by ID.
AI agents call get_message_details to retrieve information from CustomGPT 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 message data without creating, modifying, deleting, or executing any actions. It is a straightforward read operation that fits the 'Read' category. The sibling tools show destructive (delete_*) and write (create_*) operations exist on this server, but this specific tool performs only retrieval.
From the tool's definition Tool name 'get_message_details' and description 'Get detailed information for a specific message by ID' indicate a retrieval operation with no data modification or side effects.
Attacks that exploit this kind of access
Get detailed information for a specific message by ID. It is categorised as a Read tool in the CustomGPT MCP Server MCP Server, which means it retrieves data without modifying state.
Register the CustomGPT MCP Server MCP server in PolicyLayer and add a rule for get_message_details: 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 CustomGPT MCP Server. Nothing to install.
get_message_details 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_details 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_details. 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_details is provided by the CustomGPT MCP Server MCP server (poll-the-people/customgpt-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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