subscribe_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/subscribe-channel.md

WHAT IT DOES

What subscribe_channel does on Mcpg

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

RISK

Why subscribe_channel is rated Low

The description is empty, making it impossible to determine with confidence what this tool does. The name 'subscribe_channel' could imply subscribing to a PostgreSQL LISTEN/NOTIFY channel (a Write/Execute operation) or some other pub-sub mechanism. Given the PostgreSQL context, this likely relates to LISTEN/NOTIFY channels, which would be a Write or Execute category, but without description, confidence is very low.

From the tool's definition Tool name is 'subscribe_channel'; description is empty and uninformative.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs subscribe_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 subscribe_channel, this is the rule to start with:

subscribe_channel Rate-limited

subscribe_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": {
    "subscribe_channel": {
      "limits": [
        {
          "counter": "subscribe_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 subscribe_channel call is checked against it from then on.

FAQ

Questions about subscribe_channel

What does the subscribe_channel tool do? +

subscribe_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 subscribe_channel? +

Register the Mcpg MCP server in PolicyLayer and add a rule for subscribe_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 subscribe_channel? +

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

Can I rate-limit subscribe_channel? +

Yes. Add a rate_limit block to the subscribe_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 subscribe_channel completely? +

Set action: deny in the PolicyLayer policy for subscribe_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 subscribe_channel? +

subscribe_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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