update_channel · AdButler MCP: Risk & Policy

WHAT IT DOES

What update_channel does on AdButler

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

PARAMETERS

Parameter	Type	Required	Description
`id`	number	Yes	Channel ID
`name`	string	—	Channel name
`priority`	string	—	Serving priority

Parameters from the server's own tool schema.

WHY IT NEEDS A POLICY

Why update_channel needs a policy

This tool creates or modifies data reversibly without deleting it or executing arbitrary code. Updating a channel configuration is a write operation—changes can be reverted by updating again. Medium severity because misuse could alter advertising campaigns affecting business operations, but the blast radius is constrained to a single channel rather than system-wide.

From the tool's definition Tool name 'update_channel' and description 'Update an existing channel' indicate modification of existing data.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

update_channel Rate-limited

update_channel 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": {
    "update_channel": {
      "limits": [
        {
          "counter": "update_channel_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 AdButler, so you can run agents against it safely.

FAQ

Questions about update_channel

What does the update_channel tool do? +

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

What parameters does update_channel accept? +

update_channel accepts 3 parameters: id, name, priority. Required: id. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on update_channel? +

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

What risk level is update_channel? +

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

Can I rate-limit update_channel? +

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

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

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