get_chat_message_attachment

Get one file attached directly to a Huly channel message, direct-message message, or thread reply. The attachmentId must belong to the resolved target.

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/get-chat-message-attachment.md

WHAT IT DOES

What get_chat_message_attachment does on Huly

AI agents call get_chat_message_attachment 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 get_chat_message_attachment is rated Low

This tool retrieves an existing attachment from a chat message without creating, modifying, or deleting any data. It is a straightforward read operation that queries and returns a file, similar to a GET endpoint.

From the tool's definition The tool performs a retrieval operation: 'Get one file attached directly to a Huly channel message' with no modification or deletion of data.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs get_chat_message_attachment 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 get_chat_message_attachment, this is the rule to start with:

get_chat_message_attachment Allowed

get_chat_message_attachment 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": {
    "get_chat_message_attachment": {}
  }
}

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 get_chat_message_attachment call is checked against it from then on.

FAQ

Questions about get_chat_message_attachment

What does the get_chat_message_attachment tool do? +

Get one file attached directly to a Huly channel message, direct-message message, or thread reply. The attachmentId must belong to the resolved target. 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 get_chat_message_attachment? +

Register the Huly MCP server in PolicyLayer and add a rule for get_chat_message_attachment: 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 get_chat_message_attachment? +

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

Can I rate-limit get_chat_message_attachment? +

Yes. Add a rate_limit block to the get_chat_message_attachment 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 get_chat_message_attachment completely? +

Set action: deny in the PolicyLayer policy for get_chat_message_attachment. 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 get_chat_message_attachment? +

get_chat_message_attachment 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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