AutoConstrain (from datum, and Finish with AutoConstrain): infers coincident, horizontal/vertical and tangent constraints, then dimensions until fully constrained; Insert DXF (ASCII: lines, arcs, circles, bulged polylines, ellipses, splines, text; $INSUNITS) and Insert SVG (paths with all commands, shapes, transforms, units; Béziers kept exact as splines/conics; text) into sketches; sketch.export_dxf; text outline points hidden (view::sketch_point_visible)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01AS5Tn3xieewUSg3uxrMVdL

crates/engine/src/tests.rs

@@ -285,10 +285,15 @@ fn hostile_params_never_panic() {
         "lines",
         "driven",
         "from",
+        "datum",
+        "tolerance",
     ];
     let mut internal = Vec::new();
     for spec in command_specs() {
-        if matches!(spec.id, "doc.open" | "SaveDocumentCommand" | "SaveDocumentAsCommand" | "ExportCommand" | "FusionSaveAsSTLCommand") {
+        if matches!(
+            spec.id,
+            "doc.open" | "SaveDocumentCommand" | "SaveDocumentAsCommand" | "ExportCommand" | "FusionSaveAsSTLCommand" | "sketch.export_dxf"
+        ) {
             continue; // file system side effects are covered by their own tests
         }
         for v in hostile_values() {