list_mail_threads

SERVERHuly SOURCE@firfi/huly-mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-dearlordylord-huly-mcp/list-mail-threads.md

WHAT IT DOES

What list_mail_threads does on Huly

AI agents call list_mail_threads to retrieve information from Huly without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why list_mail_threads is rated Low

Tool retrieves metadata about mail threads without side effects or data modification capabilities.

From the tool's definition read-only, does not return message bodies, never sends, replies, mutates

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs list_mail_threads safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Huly, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For list_mail_threads, this is the rule to start with:

list_mail_threads Allowed

list_mail_threads is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "list_mail_threads": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Huly, apply this rule, and every list_mail_threads call is checked against it from then on.

FAQ

Questions about list_mail_threads

What does the list_mail_threads tool do? +

Discover read-only Huly Mail thread metadata in one call: outer channel titles, human-resolved spaces, timestamps, and up to 10 newest child subject summaries per channel. This does not return message bodies or attachments and never sends, replies, mutates, or reports mailbox/delivery capability. A channelTitle may resemble a replication-recipient email but does not prove a correspondent or configured mailbox. Omit filters to list recent channels; filter by exact space name/ID or case-insensitive channel-title substring. Empty threads is a supported result. It is categorised as a Read tool in the Huly MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_mail_threads? +

Register the Huly MCP server in PolicyLayer and add a rule for list_mail_threads: 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 Huly. Nothing to install.

What risk level is list_mail_threads? +

list_mail_threads is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit list_mail_threads? +

Yes. Add a rate_limit block to the list_mail_threads 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.

How do I block list_mail_threads completely? +

Set action: deny in the PolicyLayer policy for list_mail_threads. 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.

What MCP server provides list_mail_threads? +

list_mail_threads is provided by the Huly MCP server (@firfi/huly-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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