List all message API tokens for a mailbox. Shows token prefix, name, scopes, and status. Does not reveal the full token.
AI agents call list_message_tokens to retrieve information from TrekMail 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 information about API tokens (prefix, name, scopes, status) without modifying, creating, or deleting them. The explicit note that it 'Does not reveal the full token' further confirms it is a safe read operation. There are no side effects, execution of code, financial implications, or destructive actions. This is a straightforward data retrieval operation.
From the tool's definition Tool name 'list_message_tokens' and description 'List all message API tokens for a mailbox. Shows token prefix, name, scopes, and status.' indicate a query/retrieval operation with no modifications or deletions.
Risk signalsBulk/mass operation — affects multiple targets
Attacks that exploit this kind of access
List all message API tokens for a mailbox. Shows token prefix, name, scopes, and status. Does not reveal the full token. It is categorised as a Read tool in the TrekMail MCP Server MCP Server, which means it retrieves data without modifying state.
Register the TrekMail MCP Server MCP server in PolicyLayer and add a rule for list_message_tokens: 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 TrekMail MCP Server. Nothing to install.
list_message_tokens 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_message_tokens 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_message_tokens. 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_message_tokens is provided by the TrekMail MCP Server MCP server (trekmail/mcp-server). 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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