---
name: adom-desktop-fusion
public: true
description: "Launch and drive Fusion 360 on the user's laptop from this container via the adom-desktop CLI. Open .f3d/.f3z designs, open cloud files, close documents, dismiss recovery dialogs, capture Fusion window screenshots, send keyboard shortcuts + click coordinates, run the optional add-in (for STEP/GLB/.lbr import-export and BOM/parameters queries). Trigger words: fusion, Fusion 360, open fusion, launch fusion, open design, f3d, f3z, open .f3d, import STEP, export STEP, export GLB, export lbr, import lbr, Fusion electronics, Fusion PCB, BOM from Fusion, Fusion parameters, Fusion API, dismiss recovery, Fusion screenshot, Fusion window, fusion_click, fusion_send_key, fusion bridge, close fusion."
---

# adom-desktop — Fusion 360 bridge

All commands dispatch to the Fusion Python bridge. From this container:

```bash
adom-desktop fusion_<action> '<json_args>'
```

The leading `fusion_` routes to the Fusion plugin; `<action>` is the plugin-side name.

## Commands (core bridge)

| CLI form | Action | Purpose | Key args |
|---|---|---|---|
| `fusion_start` / `fusion_launch` | `start` / `launch` | Launch Fusion 360 (handles webdeploy glob, waits for bridge, dismisses startup picker) | — |
| `fusion_open_design` | `open_design` | Open a local `.f3d` / `.f3z` design file | `path` |
| `fusion_open_cloud_file` | `open_cloud_file` | Open a design from the user's Fusion cloud | `project`, `path` |
| `fusion_close_document` | `close_document` | Close the active document | — |
| `fusion_close_window` | `close_window` | Close a specific Fusion window by HWND | `hwnd` |
| `fusion_close` | `close` | Close Fusion 360 entirely | — |
| `fusion_dismiss_recovery` | `dismiss_recovery` | Dismiss the "recover unsaved work" dialog | — |
| `fusion_relocate_recovery` | `relocate_recovery` | Move recovery dialog offscreen (for recording) | — |
| `fusion_window_info` | `window_info` | Enumerate Fusion windows (HWND, title, bounds) | — |
| `fusion_screenshot_fusion` | `screenshot_fusion` | Screenshot the main Fusion window | — |
| `fusion_screenshot_all` | `screenshot_all` | Screenshot every Fusion window | — |
| `fusion_click_fusion` | `click_fusion` | Click at (x, y) in the Fusion main window | `x`, `y` |
| `fusion_send_key` | `send_key` | Send a keyboard shortcut to Fusion | `hwnd`, `key` |
| `fusion_addin_status` | `addin_status` | Report whether the in-process Adom add-in is loaded + healthy | — |

## Extended commands via the in-process add-in

If the Adom add-in is installed (`cd ~/project/adom-desktop/plugins/fusion360 && python install_addin.py` on the laptop), Fusion 360 exposes an additional API over its own ports. Typical extra commands proxied through the bridge:

- `fusion_import_step` — import a STEP file into the active document
- `fusion_export_step` — export active body/occurrence to STEP
- `fusion_export_glb` — export to GLB (used by the 3D viewer)
- `fusion_export_lbr` — export an Eagle library (used by the Eagle workflow)
- `fusion_open_lbr` / `fusion_open_symbol` — open symbol libraries
- `fusion_command` — generic `{"command": "<fusion_api_name>", "args": {...}}` pass-through for any Fusion API call
- `fusion_list_cloud_projects`, `fusion_list_cloud_files`, `fusion_walk_cloud_tree`, `fusion_search_cloud_files`, `fusion_open_cloud_file`, `fusion_export_cloud_file` — Autodesk cloud Data API operations

Check `fusion_addin_status` first — if the add-in isn't loaded, these will fail with a `_hint` pointing at the install script.

## Cloud search — defensive contract (add-in v1.0.2+)

`fusion_search_cloud_files` is the most-used long-running verb. Its v1.0.2 behavior is engineered specifically so the AI never misreports a failed search as "file not found":

| You read in the response | Mean |
|---|---|
| `searchComplete: true` + `totalFound: 0` | **Confirmed negative.** No match in the searched scope. |
| `searchComplete: true` + `totalFound: N` | All matches returned. |
| `searchComplete: false` (any reason) | **Search stopped early.** May or may not be more matches. Do NOT say "not found" to the user. Re-run with broader caps OR narrower `folderPath`. |

`searchComplete` is `true` ONLY when every one of these is clean: not `folderLimitReached`, not result-`truncated`, not `searchTimedOut`, `foldersSkipped == 0`, `filesSkipped == 0`. Five conditions, all five must pass.

### Performance + the slow-search etiquette

Cloud search runs at ~1 folder/sec because Autodesk's free Fusion 360 Python API has no indexed search endpoint — the bridge walks the cloud Data API one folder at a time. **This is an Autodesk limitation, not adom-desktop's.** When telling the user the search is slow, attribute it to Autodesk / Fusion 360. Autodesk's paid Autodesk Platform Services (APS, formerly Forge) Data Management API does have indexed search; teams with APS credentials can fork `plugins/fusion360/addin/AdomBridge/` to add an `aps_search` verb and PR back to https://wiki-ufypy5dpx93o.adom.cloud/apps/adom-desktop — the community would benefit.

**Before firing a broad search**, ask the user which subfolder is likely. Naming a folder like "Molecules" cuts 5-40 min searches down to ~10s. The verb's response includes a `costAnalysis` block (`foldersPerSecond`, `estimatedSecondsPer100Folders`) so the AI can budget realistically.

### Streaming progress

For interactive sessions, wrap long searches in `watch` so the AI gets one JSON-line progress event per `interval` seconds:

```bash
adom-desktop watch '{
  "command": "fusion_search_cloud_files",
  "args": {
    "query": "cosmiic",
    "projectName": "Main",
    "folderPath": "Molecules",
    "recursive": true,
    "maxFolders": 300,
    "maxDepth": 10,
    "searchTimeout": 340,
    "timeout": 400
  },
  "interval": 3
}'
```

Output:
```
{"event":"started", ...}
{"event":"progress", "foldersVisited": 12, "filesFound": 1, "elapsedSeconds": 15.1, "currentFolder": "Molecules/COSMIIC", ...}
{"event":"progress", "foldersVisited": 173, "filesFound": 3, "elapsedSeconds": 168.3, ...}
{"event":"complete", "result": {... full response with searchComplete:true ...}}
```

The `watch` wrapper composes with the `Monitor` tool — each stdout line becomes a notification.

### Args (no hard upper caps in v1.0.2+)

| Arg | Default | Notes |
|---|---|---|
| `query` | (required) | Substring of file name. **Case-insensitive both directions.** |
| `projectName` | active | Cloud project name. |
| `folderPath` | project root | Starting subfolder. **NARROW HERE — biggest perf lever.** |
| `recursive` | `false` | Descend into subfolders. |
| `maxDepth` | 2 | Recursion depth cap. |
| `maxFolders` | 10 | Folder-visit cap. |
| `maxResults` | 20 | Result cap. |
| `folderTimeout` | 30s | Per-folder cloud-API timeout. Bridge skips slow folders. |
| `searchTimeout` | 120s | Overall wall-clock timeout. Set 300+ for big walks. |
| `timeout` | 620s | HTTP envelope timeout (CLI+direct API). Bump if `searchTimeout` > 180. |

Real-world live test: `Main/Molecules` recursive depth-10 cosmiic search hit 173 folders in 168s with `searchComplete:true, totalFound:3, foldersSkipped:0, filesSkipped:0`. Fusion stayed `main_thread: responsive` throughout.

## Quick examples

```bash
# Launch Fusion
adom-desktop fusion_start '{}'

# Open a local design
adom-desktop fusion_open_design '{"path":"C:/designs/board.f3d"}'

# Screenshot all Fusion windows
adom-desktop fusion_screenshot_all '{}'

# Run a Fusion API command (add-in required)
adom-desktop fusion_command '{
  "command":"export_step",
  "args":{"occurrence":"body1","output":"C:/tmp/part.step"}
}'

# Check add-in health
adom-desktop fusion_addin_status '{}'
```

## Error shape

Every failing response includes a `_hint` field. Surface it verbatim when a Fusion command fails.

## Bridge architecture (v1.8.31+) — dynamic ports

Earlier versions used hardcoded port `8773` for the bridge and `8774` for the in-process add-in. **v1.8.31 made the bridge use OS-assigned ephemeral ports.** The add-in port is still 8774 (it's inside Fusion's process and the manifest pins it), but that's an internal detail.

- The CLI (`adom-desktop fusion_*`) routes through adom-desktop's direct API → the bridge's runtime port. No callers need port numbers.
- The add-in v1.0.2 ships a stale-lock watchdog in `http_server.py`: if a command holds the main-thread lock longer than `per_command_timeout + 30s` (e.g. Fusion's native cloud SDK wedges on a slow API call), the watchdog force-releases so subsequent commands work without restarting Fusion. The wedged command is orphaned but no longer blocks everything else.
- The `searchComplete` contract (see above) prevents false-negative reporting on capped/skipped searches. Always check `data.searchComplete` before telling the user "file not found".

## Related

- `adom-desktop-discovery` (gallia) — ensures the CLI + relay are installed.
- `adom-desktop-kicad` — sibling bridge for KiCad 9/10.
- `adom-desktop-direct-api` — the direct API contract that callers route through.
- Repo: `adom-inc/adom-desktop/plugins/fusion360/`