gepa_start_evolution · Prompt Auto-Optimizer MCP

WHAT IT DOES

What gepa_start_evolution does on Prompt Auto-Optimizer MCP

AI agents invoke gepa_start_evolution to trigger actions in Prompt Auto-Optimizer MCP. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why gepa_start_evolution needs a policy

gepa_start_evolution triggers real processes with real consequences. An agent gone sideways doesn't fire it once — it starts dozens of builds, sends mass notifications, or burns through compute before anyone looks up.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

gepa_start_evolution Rate-limited

gepa_start_evolution stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "gepa_start_evolution": {
      "limits": [
        {
          "counter": "gepa_start_evolution_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

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

FAQ

Questions about gepa_start_evolution

What does the gepa_start_evolution tool do? +

Initialize evolution process with configuration and seed prompt. It is categorised as a Execute tool in the Prompt Auto-Optimizer MCP MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on gepa_start_evolution? +

Register the Prompt Auto-Optimizer MCP server in PolicyLayer and add a rule for gepa_start_evolution: 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 Prompt Auto-Optimizer MCP. Nothing to install.

What risk level is gepa_start_evolution? +

gepa_start_evolution is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit gepa_start_evolution? +

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

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

gepa_start_evolution is provided by the Prompt Auto-Optimizer MCP server (sloth-wq/prompt-auto-optimizer-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.