export_design_to_gds · Funky Junction MCP: Risk & Policy

WHAT IT DOES

What export_design_to_gds does on Funky Junction

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

WHY IT NEEDS A POLICY

Why export_design_to_gds needs a policy

This tool writes data to a file (exports to GDS format), which is a reversible file creation/write operation. It does not delete, execute arbitrary code, move money, or destructively alter existing data. The output is a standard design representation file used in circuit/chip design workflows.

From the tool's definition Tool exports the current quantum circuit design to a GDS (GDES/Geometry Database) file format. GDS export is a standard design output operation that creates or writes a new file containing design data.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

export_design_to_gds Rate-limited

export_design_to_gds 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": {
    "export_design_to_gds": {
      "limits": [
        {
          "counter": "export_design_to_gds_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 Funky Junction, so you can run agents against it safely.

FAQ

Questions about export_design_to_gds

What does the export_design_to_gds tool do? +

Export the current design to a GDS file. It is categorised as a Write tool in the Funky Junction MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on export_design_to_gds? +

Register the Funky Junction MCP server in PolicyLayer and add a rule for export_design_to_gds: 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 Funky Junction. Nothing to install.

What risk level is export_design_to_gds? +

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

Can I rate-limit export_design_to_gds? +

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

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

export_design_to_gds is provided by the Funky Junction MCP server (paulgoldschmidt/qsim-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.