keitaro_update_stream · Keitaro MCP Server MCP

WHAT IT DOES

What keitaro_update_stream does on Keitaro MCP Server

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

WHY IT NEEDS A POLICY

Why keitaro_update_stream needs a policy

This tool modifies existing stream configuration data in a reversible manner. While updates can affect campaign functionality and traffic routing, they are not irreversible (data can be reverted to previous states) and do not destroy data. The blast radius is medium: misconfigured stream updates could disrupt traffic flow or campaign targeting, but the effect is containable through reverting the changes.

From the tool's definition Tool name contains 'update' and description states 'Update stream fields (partial update)', indicating reversible modification of data without deletion or permanent removal.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

keitaro_update_stream Rate-limited

keitaro_update_stream 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": {
    "keitaro_update_stream": {
      "limits": [
        {
          "counter": "keitaro_update_stream_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 Keitaro MCP Server, so you can run agents against it safely.

FAQ

Questions about keitaro_update_stream

What does the keitaro_update_stream tool do? +

Update stream fields (partial update). It is categorised as a Write tool in the Keitaro 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 keitaro_update_stream? +

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

What risk level is keitaro_update_stream? +

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

Can I rate-limit keitaro_update_stream? +

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

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

keitaro_update_stream is provided by the Keitaro MCP Server MCP server (keitaromanager/keitaro-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.