update_database_access · PlugLayer MCP Server MCP

WHAT IT DOES

What update_database_access does on PlugLayer MCP Server

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

WHY IT NEEDS A POLICY

Why update_database_access needs a policy

This tool modifies database security configurations (IP allowlist) but does not delete data or infrastructure irreversibly. Changes to access control lists are reversible and can be undone by updating the list again. While the security implications are significant (network access control affects database exposure), the operation itself is a modification (Write category) rather than destructive.

From the tool's definition Tool description states it 'Update[s] a provisioned database's public TCP IP allowlist' — a modification operation. The ability to pass 'an empty list to allow all IPs again' demonstrates reversible changes to access controls.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

update_database_access Rate-limited

update_database_access 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_database_access": {
      "limits": [
        {
          "counter": "update_database_access_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 PlugLayer MCP Server, so you can run agents against it safely.

FAQ

Questions about update_database_access

What does the update_database_access tool do? +

Update a provisioned database's public TCP IP allowlist. Pass an empty list to allow all IPs again. It is categorised as a Write tool in the PlugLayer 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_database_access? +

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

What risk level is update_database_access? +

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

Can I rate-limit update_database_access? +

Yes. Add a rate_limit block to the update_database_access 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_database_access completely? +

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

update_database_access is provided by the PlugLayer MCP Server MCP server (pluglayer/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.