sdd_formal_verify · Musubix MCP: Risk & Policy

WHAT IT DOES

What sdd_formal_verify does on Musubix

AI agents invoke sdd_formal_verify to trigger actions in Musubix. 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 sdd_formal_verify needs a policy

This tool executes formal verification logic using the Z3 theorem prover, an external computational engine. It runs a proof/solver process against provided requirements, making it an Execute-category tool. The blast radius is medium since it processes data through an external solver but does not inherently modify, delete, or move financial assets.

From the tool's definition "Perform formal verification on EARS requirements using Z3 theorem prover"

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

sdd_formal_verify Rate-limited

sdd_formal_verify 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": {
    "sdd_formal_verify": {
      "limits": [
        {
          "counter": "sdd_formal_verify_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 Musubix, so you can run agents against it safely.

FAQ

Questions about sdd_formal_verify

What does the sdd_formal_verify tool do? +

Perform formal verification on EARS requirements using Z3 theorem prover. It is categorised as a Execute tool in the Musubix MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on sdd_formal_verify? +

Register the Musubix MCP server in PolicyLayer and add a rule for sdd_formal_verify: 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 Musubix. Nothing to install.

What risk level is sdd_formal_verify? +

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

Can I rate-limit sdd_formal_verify? +

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

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

sdd_formal_verify is provided by the Musubix MCP server (@nahisaho/musubix-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.