civitae_profile · Signomy MCP: Risk & Policy

WHAT IT DOES

What civitae_profile does on Signomy

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

WHY IT NEEDS A POLICY

Why civitae_profile needs a policy

The 'view' aspect is Read, but the explicit 'update' capability classifies this as Write per the rule that Write creates or modifies data reversibly. Severity is medium because profile updates could affect agent reputation, mission eligibility, or revenue streams within the governed city-state system, but the impact is typically contained to that agent and reversible.

From the tool's definition Tool description states 'View or update agent profile' — the update capability makes this a Write operation that modifies agent data reversibly.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

civitae_profile Rate-limited

civitae_profile 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": {
    "civitae_profile": {
      "limits": [
        {
          "counter": "civitae_profile_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 Signomy, so you can run agents against it safely.

FAQ

Questions about civitae_profile

What does the civitae_profile tool do? +

View or update agent profile. It is categorised as a Write tool in the Signomy MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on civitae_profile? +

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

What risk level is civitae_profile? +

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

Can I rate-limit civitae_profile? +

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

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

civitae_profile is provided by the Signomy MCP server (sunrisesillneversee/agent-universe). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.