db_create_trigger · Database MCP Server MCP: Risk & Policy

WHAT IT DOES

What db_create_trigger does on Database MCP Server

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

WHY IT NEEDS A POLICY

Why db_create_trigger needs a policy

Creating a trigger is a DDL write operation that adds a new database object. It is reversible (the trigger can be dropped). However, triggers execute code automatically on database events, giving them an Execute-like secondary nature. Since creation alone is the action (not execution), and it can be undone, Write is the most appropriate category.

From the tool's definition Tool name: db_create_trigger, description: 'Create a trigger'

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

db_create_trigger Rate-limited

db_create_trigger 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": {
    "db_create_trigger": {
      "limits": [
        {
          "counter": "db_create_trigger_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Database MCP Server, so you can run agents against it safely.

FAQ

Questions about db_create_trigger

What does the db_create_trigger tool do? +

Create a trigger. It is categorised as a Write tool in the Database 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 db_create_trigger? +

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

What risk level is db_create_trigger? +

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

Can I rate-limit db_create_trigger? +

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

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

db_create_trigger is provided by the Database MCP Server MCP server (roilanrodriguez55/database-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.