app_set_active_document

Set a specific document as the active (focused) document.

SERVEREda Agent SOURCEsalitronic/eda-agent

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/eda-agent/app-set-active-document.md

WHAT IT DOES

What app_set_active_document does on Eda Agent

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

RISK

Why app_set_active_document is rated Medium

This tool changes the active/focused document in Altium Designer. It modifies application state (which document is active) but does not delete or irreversibly alter design data. It is a reversible UI/state change, fitting the Write category. Misuse has minimal blast radius as it only affects focus, not data integrity.

From the tool's definition Set a specific document as the active (focused) document

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs app_set_active_document safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Eda Agent, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For app_set_active_document, this is the rule to start with:

app_set_active_document Rate-limited

app_set_active_document 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": {
    "app_set_active_document": {
      "limits": [
        {
          "counter": "app_set_active_document_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Eda Agent, apply this rule, and every app_set_active_document call is checked against it from then on.

FAQ

Questions about app_set_active_document

What does the app_set_active_document tool do? +

Set a specific document as the active (focused) document. It is categorised as a Write tool in the Eda Agent MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on app_set_active_document? +

Register the Eda Agent MCP server in PolicyLayer and add a rule for app_set_active_document: 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 Eda Agent. Nothing to install.

What risk level is app_set_active_document? +

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

Can I rate-limit app_set_active_document? +

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

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

app_set_active_document is provided by the Eda Agent MCP server (salitronic/eda-agent). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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