untag_item · Streamline MCP: Risk & Policy

WHAT IT DOES

What untag_item does on Streamline MCP

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

WHY IT NEEDS A POLICY

Why untag_item needs a policy

Removing a tag is a reversible modification — the tag can be re-applied — so this is a Write operation rather than Destructive. However, misuse could strip organizational metadata from many items, giving it medium severity.

From the tool's definition Remove a tag from a task or note

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

untag_item Rate-limited

untag_item 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": {
    "untag_item": {
      "limits": [
        {
          "counter": "untag_item_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 Streamline MCP, so you can run agents against it safely.

FAQ

Questions about untag_item

What does the untag_item tool do? +

Remove a tag from a task or note. It is categorised as a Write tool in the Streamline MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on untag_item? +

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

What risk level is untag_item? +

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

Can I rate-limit untag_item? +

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

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

untag_item is provided by the Streamline MCP server (rostehea/streamline-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.