updateComment · Todoist MCP Server MCP: Risk & Policy

WHAT IT DOES

What updateComment does on Todoist MCP Server

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

WHY IT NEEDS A POLICY

Why updateComment needs a policy

The 'updateComment' tool modifies existing comments reversibly, which aligns with Write category operations. Although the description is missing—lowering confidence slightly—the clear naming pattern and context of a task management system support this classification.

From the tool's definition Tool name 'updateComment' indicates modification of existing data. The description is empty, providing no direct evidence, but the naming convention and pattern among sibling tools (createComment, deleteComment, createTask, etc.) strongly suggests this…

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

updateComment Rate-limited

updateComment 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": {
    "updateComment": {
      "limits": [
        {
          "counter": "updatecomment_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Todoist MCP Server, so you can run agents against it safely.

FAQ

Questions about updateComment

What does the updateComment tool do? +

updateComment. It is categorised as a Write tool in the Todoist MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on updateComment? +

Register the Todoist MCP Server MCP server in PolicyLayer and add a rule for updateComment: 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 Todoist MCP Server. Nothing to install.

What risk level is updateComment? +

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

Can I rate-limit updateComment? +

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

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

updateComment is provided by the Todoist MCP Server MCP server (stevengonsalvez/todoist-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.