oracle_explain_plan · Oracle APEX MCP Server MCP

WHAT IT DOES

What oracle_explain_plan does on Oracle APEX MCP Server

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

WHY IT NEEDS A POLICY

Why oracle_explain_plan needs a policy

An AI agent can call oracle_explain_plan faster than any human can review — one bad instruction and it creates or modifies resources in Oracle APEX MCP Server by the hundred, each call as confident as the last.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

oracle_explain_plan Rate-limited

oracle_explain_plan 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": {
    "oracle_explain_plan": {
      "limits": [
        {
          "counter": "oracle_explain_plan_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 Oracle APEX MCP Server, so you can run agents against it safely.

FAQ

Questions about oracle_explain_plan

What does the oracle_explain_plan tool do? +

Generate execution plan for a SQL statement using EXPLAIN PLAN. Returns the plan table output for query optimization analysis. It is categorised as a Write tool in the Oracle APEX 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 oracle_explain_plan? +

Register the Oracle APEX MCP Server MCP server in PolicyLayer and add a rule for oracle_explain_plan: 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 Oracle APEX MCP Server. Nothing to install.

What risk level is oracle_explain_plan? +

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

Can I rate-limit oracle_explain_plan? +

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

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

oracle_explain_plan is provided by the Oracle APEX MCP Server MCP server (silviosotelo/oracle-apex-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.