prc_gate

Server RC Engine originalrashmi/rc-engine-product-framework

Category Write

Risk class Medium

Parameters 00 required

WHAT IT DOES

What prc_gate does on RC Engine

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

WHY IT NEEDS A POLICY

Why prc_gate needs a policy

The tool submits/records a checkpoint decision (approve/reject/revise) within a pipeline workflow. This is a Write operation — it creates or modifies a decision record in the pipeline state. It does not execute code, delete data, or involve financial transactions.

From the tool's definition Submit a checkpoint decision for the current Pre-RC research stage

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

prc_gate Rate-limited

prc_gate 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": {
    "prc_gate": {
      "limits": [
        {
          "counter": "prc_gate_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 RC Engine, so you can run agents against it safely.

FAQ

Questions about prc_gate

What does the prc_gate tool do? +

Submit a checkpoint decision for the current Pre-RC research stage. NEVER call without presenting the checkpoint context to the user first and getting their explicit decision. Three checkpoints exist: Checkpoint 1 (after classify - is research scope right?), Checkpoint 2 (after stages 1-4 - is research accurate?), Checkpoint 3 (after all stages - ready to build?). Valid decisions:. It is categorised as a Write tool in the RC Engine MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on prc_gate? +

Register the RC Engine MCP server in PolicyLayer and add a rule for prc_gate: 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 RC Engine. Nothing to install.

What risk level is prc_gate? +

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

Can I rate-limit prc_gate? +

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

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

prc_gate is provided by the RC Engine MCP server (originalrashmi/rc-engine-product-framework). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.