UI scenarios: the user's four open bugs as ignored targets (s31 sketch on a face projects its loops, s32 a cut in the active component leaves others alone, s33 Move opens at 0 and its X arrow moves along X, s34 moving a component carries its sketches); Fold, configurations, motion study and autosave/recovery enabled against the landed features (s22–s25); retests: fillets follow their edge after a sketch edit (s06 volume, s15 widens the sample plate), one canvas panel (s19); s30 patterns a hole as a feature (ignored: one hole results). Harness: manipulator handles published by name (scenario::publish_handle; ui.at {handle}; timeline items as timeline:<name>), restart after a crash or close, autosave into the scenario's folder, exact widget text before menu-label prefixes, checks for sketch curves, body volume and sketch points in the world

Co-Authored-By: Claude Opus 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01AS5Tn3xieewUSg3uxrMVdL

docs/control-protocol.md

@@ -36,7 +36,7 @@ Commands never open dialogs when run this way. `solvecraft-cli commands` prints
 | `ui.triad` | | screen points of the 3D sketch move triad's handles (`x`, `y`, `z`, `plane`) |
 | `ui.sketchToScreen` | `points`: `[[x, y]…]` in active-sketch coordinates | their screen points (null when behind the camera) |
 | `ui.dialogInput` | `index` | what clicking an input's Select chip does: picks go to that input |
-| `ui.at` | `world: [x,y,z]` \| `sketch: [x,y]` \| `plane: "XY"` \| `axis: "Z"` \| `dimension: "d1"` (its value text) | the screen point (a scenario step's target; see `crates/ui-egui/src/scenario.rs`) |
+| `ui.at` | `world: [x,y,z]` \| `sketch: [x,y]` \| `plane: "XY"` \| `axis: "Z"` \| `dimension: "d1"` (its value text) \| `handle: "arrow"` (a manipulator handle, see `scenario::publish_handle`) | the screen point (a scenario step's target; see `crates/ui-egui/src/scenario.rs`) |
 | `ui.editFeature` | `feature` (id or name) | what double-clicking a timeline item does: rolls back to it and opens its dialog filled in (sketches open in sketch mode) |
 | `ui.scroll` | `x`, `y`, `delta?` | wheel zoom at the cursor |
 | `ui.key` | `key` (egui key name, `Enter`, `Escape`…), `cmd?`, `shift?` | |