add_drive_file_comment

Add a Markdown comment to a Drive file resolved by filePath or fileId. Provide only one locator. The comment is attached directly to the file.

SERVERHuly SOURCE@firfi/huly-mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-dearlordylord-huly-mcp/add-drive-file-comment.md

WHAT IT DOES

What add_drive_file_comment does on Huly

AI agents use add_drive_file_comment to create or update resources in Huly, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Huly environment.

RISK

Why add_drive_file_comment is rated Medium

The tool creates new data (a comment) on a Drive file without deleting or destructively modifying existing content. It is reversible (comments can typically be removed), making it Write rather than Destructive. The blast radius is medium because malicious comments could spam, harass, or inject misleading information into shared documents, but the operation itself is non-destructive and scoped to comment addition.

From the tool's definition Tool description states 'Add a Markdown comment to a Drive file', which creates new content (a comment) attached to an existing file. This is a reversible modification operation.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

add_drive_file_comment Rate-limited

add_drive_file_comment 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.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "add_drive_file_comment": {
      "limits": [
        {
          "counter": "add_drive_file_comment_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about add_drive_file_comment

What does the add_drive_file_comment tool do? +

Add a Markdown comment to a Drive file resolved by filePath or fileId. Provide only one locator. The comment is attached directly to the file. It is categorised as a Write tool in the Huly MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on add_drive_file_comment? +

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

add_drive_file_comment is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit add_drive_file_comment? +

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

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

add_drive_file_comment 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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