draw_samples_from_gcm · DoWhy MCP v2 0 MCP: Risk & Policy

WHAT IT DOES

What draw_samples_from_gcm does on DoWhy MCP v2 0

AI agents invoke draw_samples_from_gcm to trigger actions in DoWhy MCP v2 0. 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 draw_samples_from_gcm needs a policy

This tool executes a sampling procedure against a fitted Generative Causal Model (GCM), producing synthetic data. It does not merely read stored data but actively runs a computational process whose output depends on model state and arguments. No data is destroyed or money moved, but it executes an operation with potentially large compute/output side effects, placing it in Execute.

From the tool's definition '从拟合的模型中采样' (sample from fitted model) — triggers a computational sampling operation using the GCM model

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

draw_samples_from_gcm Rate-limited

draw_samples_from_gcm 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": {
    "draw_samples_from_gcm": {
      "limits": [
        {
          "counter": "draw_samples_from_gcm_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 DoWhy MCP v2 0, so you can run agents against it safely.

FAQ

Questions about draw_samples_from_gcm

What does the draw_samples_from_gcm tool do? +

使用 DoWhy GCM 从拟合的模型中采样. It is categorised as a Execute tool in the DoWhy MCP v2 0 MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on draw_samples_from_gcm? +

Register the DoWhy MCP v2 0 MCP server in PolicyLayer and add a rule for draw_samples_from_gcm: 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 DoWhy MCP v2 0. Nothing to install.

What risk level is draw_samples_from_gcm? +

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

Can I rate-limit draw_samples_from_gcm? +

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

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

draw_samples_from_gcm is provided by the DoWhy MCP v2 0 MCP server (lesong36/dowhy_mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.