unsubscribe_channel

A other tool on the Mcpg MCP server.

SERVERMcpg SOURCEpypi:mcpg

Low RISK CLASS

Category Other

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-devopam-mcpg/unsubscribe-channel.md

WHAT IT DOES

What unsubscribe_channel does on Mcpg

AI agents call unsubscribe_channel as a supporting operation in Mcpg workflows.

RISK

Why unsubscribe_channel is rated Low

The description is empty, so classification relies solely on the name. 'Unsubscribe_channel' suggests removing a subscription to a PostgreSQL notification channel (UNLISTEN), which is a reversible Write/configuration change. However, without a description, it could also relate to removing a pub/sub channel entirely (potentially Destructive).

From the tool's definition Tool name is 'unsubscribe_channel'; description is empty or uninformative.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs unsubscribe_channel safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Mcpg, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For unsubscribe_channel, this is the rule to start with:

unsubscribe_channel Rate-limited

unsubscribe_channel gets a rate cap, and everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "unsubscribe_channel": {
      "limits": [
        {
          "counter": "unsubscribe_channel_rate",
          "window": "minute",
          "max": 60,
          "scope": "grant"
        }
      ]
    }
  }
}

SET A RULE FOR THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about unsubscribe_channel

What does the unsubscribe_channel tool do? +

unsubscribe_channel is a other tool on the Mcpg MCP server. It is categorised as a Other tool in the Mcpg MCP Server, which means it performs auxiliary operations.

How do I enforce a policy on unsubscribe_channel? +

Register the Mcpg MCP server in PolicyLayer and add a rule for unsubscribe_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 Mcpg. Nothing to install.

What risk level is unsubscribe_channel? +

unsubscribe_channel is a Other tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit unsubscribe_channel? +

Yes. Add a rate_limit block to the unsubscribe_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 unsubscribe_channel completely? +

Set action: deny in the PolicyLayer policy for unsubscribe_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 unsubscribe_channel? +

unsubscribe_channel is provided by the Mcpg MCP server (pypi:mcpg). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

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