The app first reads the private shared configuration at ../llm.config.yaml. That file is Git-ignored and may use a direct apiKey or an environment name in apiKeyEnv. It falls back to the app-local example:

cp config/llm.config.yaml.example ../llm.config.yaml

Neither direct keys nor environment-variable names are returned by the public configuration endpoint.

Set CAD_ENGINE_ROOT only when the sibling CadSet engine is not at ...

Run

npm install
npm run dev -- -H 127.0.0.1 -p 53821

Open http://127.0.0.1:53821.

CAD Flow

Uploads and generated tasks are stored under data/tasks/<taskId>.

The model authors DesignIR 2.0, CAD Router selects text-to-cad or SimpleCADAPI, and the DesignIR pipeline performs a teacher-free isolated STEP rebuild. Uploaded STEP is teacher and acceptance truth; it is never imported by the reconstruction compiler.

CAD Agent Studio does not start the standalone CAD Viewer service. Generated models keep DesignIR as the editable contract and STEP as the geometry artifact. The right-pane toolbar mirrors the CAD Viewer edit tool set and interaction shape, but tool picks are attached to the next agent request as structured cadViewer.editIntent / cadViewer.selection context instead of being copied to the clipboard. The handoff is silent in the UI: no success modal, no copied text panel.

Modification requests create revision folders with edit-request.json and apply changes to the DesignIR recorded in cad-task.json.