edit_trust_boundary · Mipiti MCP Server MCP: Risk & Policy

WHAT IT DOES

What edit_trust_boundary does on Mipiti MCP Server

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

WHY IT NEEDS A POLICY

Why edit_trust_boundary needs a policy

This tool modifies trust boundary definitions within a security threat modeling platform. Trust boundaries are core to security architecture; editing them could alter threat model validity and control effectiveness. However, changes are reversible (not Destructive), and the tool does not execute code, delete data, or move money.

From the tool's definition Tool name 'edit_trust_boundary' indicates modification of existing security model data. The verb 'edit' denotes reversible change.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

edit_trust_boundary Rate-limited

edit_trust_boundary 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": {
    "edit_trust_boundary": {
      "limits": [
        {
          "counter": "edit_trust_boundary_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 Mipiti MCP Server, so you can run agents against it safely.

FAQ

Questions about edit_trust_boundary

What does the edit_trust_boundary tool do? +

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

How do I enforce a policy on edit_trust_boundary? +

Register the Mipiti MCP Server MCP server in PolicyLayer and add a rule for edit_trust_boundary: 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 Mipiti MCP Server. Nothing to install.

What risk level is edit_trust_boundary? +

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

Can I rate-limit edit_trust_boundary? +

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

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

edit_trust_boundary is provided by the Mipiti MCP Server MCP server (mipiti/mipiti-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.