update_agent_settings · CustomGPT MCP Server MCP

WHAT IT DOES

What update_agent_settings does on CustomGPT MCP Server

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

WHY IT NEEDS A POLICY

Why update_agent_settings needs a policy

This tool creates or modifies agent configuration reversibly. While it affects agent behavior and could have downstream consequences if misused, the action itself is reversible—settings can be changed again. It does not execute arbitrary code, trigger financial transactions, or permanently delete data.

From the tool's definition Tool name 'update_agent_settings' and description 'Update comprehensive agent settings with all available configuration options' indicate modification of existing configuration data.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

update_agent_settings Rate-limited

update_agent_settings 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_agent_settings": {
      "limits": [
        {
          "counter": "update_agent_settings_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 CustomGPT MCP Server, so you can run agents against it safely.

FAQ

Questions about update_agent_settings

What does the update_agent_settings tool do? +

Update comprehensive agent settings with all available configuration options. It is categorised as a Write tool in the CustomGPT 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 update_agent_settings? +

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

What risk level is update_agent_settings? +

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

Can I rate-limit update_agent_settings? +

Yes. Add a rate_limit block to the update_agent_settings 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_agent_settings completely? +

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

update_agent_settings is provided by the CustomGPT MCP Server MCP server (poll-the-people/customgpt-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.