update_domain_note
Update the note/description on a domain (max 120 characters). Pass null to clear.
This record as markdown: /tools/trekmail-mcp-server/update-domain-note.md
What update_domain_note does on TrekMail MCP Server
AI agents use update_domain_note to create or update resources in TrekMail MCP Server, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your TrekMail MCP Server environment.
Why update_domain_note is rated Medium
This tool creates or modifies domain metadata (notes/descriptions) in a reversible manner. It does not delete data irreversibly, execute code, move money, or trigger external operations. The blast radius of misuse is minimal since updating domain notes cannot corrupt infrastructure or cause service disruption. Classified as Write rather than Read because it performs a modification operation, not just retrieval.
From the tool's definition Tool description states 'Update the note/description on a domain' - this modifies metadata on an existing domain resource. The ability to pass null to clear the field confirms reversible modification capability.
Attacks that exploit this kind of access
The rule that runs update_domain_note safely
PolicyLayer is an MCP gateway: it sits between your AI agents and TrekMail MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For update_domain_note, this is the rule to start with:
update_domain_note stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect TrekMail MCP Server, apply this rule, and every update_domain_note call is checked against it from then on.
Questions about update_domain_note
Update the note/description on a domain (max 120 characters). Pass null to clear. It is categorised as a Write tool in the TrekMail MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the TrekMail MCP Server MCP server in PolicyLayer and add a rule for update_domain_note: 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.
update_domain_note is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the update_domain_note 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 update_domain_note. 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.
update_domain_note 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.
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