Command ids are SolveCraft's own: 173 ids that were another product's internal command ids become dotted, lower-case ids (<area>.<thing>[.<variant>]: solid.extrude, sketch.rectangle.two_point, sheet.flange, joint.drive, ...), in the registry, toolbar, dialogs, shortcuts, palette, control channel, MCP, examples, scenarios and docs

The old ids live only in crates/engine/src/legacy_ids.rs (the legacy migration table): find_command maps them, so old scripts, recipes and control calls keep working, and saved shortcuts, recent and pinned commands are migrated on load (designs store no command ids). Parity maps the observed catalog ids to ours through xtask/data/fusion-ids.tsv. The agent rule now reads: our own dotted id, never another product's. Cargo.toml's repository points at github.com/bherbruck/solvecraft.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

crates/engine/src/cmd/motion.rs

@@ -13,22 +13,22 @@ use crate::params::{bad, bool_, str_, vec3};
 use crate::{EngineError, Result, Session};
 
 pub static COMMANDS: &[CommandSpec] = &[
-    CommandSpec::new("EnableContactSetsCmd", "Enable Contact Sets", enable_sets).at("SOLID", "ASSEMBLE").icon("joint").params(
+    CommandSpec::new("contact.enable_sets", "Enable Contact Sets", enable_sets).at("SOLID", "ASSEMBLE").icon("joint").params(
         "enabled?: bool (default true) — driving joints and motion studies stop where bodies in one contact set would pass through each other",
     ),
-    CommandSpec::new("EnableAllContactCmd", "Enable All Contact", enable_all)
+    CommandSpec::new("contact.enable_all", "Enable All Contact", enable_all)
         .at("SOLID", "ASSEMBLE")
         .icon("joint")
         .params("every occurrence takes part in contact (one set of all)"),
-    CommandSpec::new("DisableAllContactCmd", "Disable Contact", disable_all).at("SOLID", "ASSEMBLE").icon("joint").params("contact off"),
-    CommandSpec::new("ContactSetCmd", "New Contact Set", new_set)
+    CommandSpec::new("contact.disable_all", "Disable Contact", disable_all).at("SOLID", "ASSEMBLE").icon("joint").params("contact off"),
+    CommandSpec::new("contact.create", "New Contact Set", new_set)
         .at("SOLID", "ASSEMBLE")
         .icon("joint")
         .params("occurrences: [ids or names] (two or more); name?"),
     CommandSpec::new("contact.edit", "Edit Contact Set", edit_set).params("set: id|name; occurrences?; name?; suppressed?: bool; delete?: bool"),
     CommandSpec::new("contact.list", "List Contact Sets", list_sets).noundo().params("→ sets, enabled, all"),
     CommandSpec::new("contact.check", "Check Contact", check).noundo().params("→ pairs in contact sets that pass through each other now"),
-    CommandSpec::new("FusionMotionStudyCommand", "Motion Study", study).at("SOLID", "ASSEMBLE").icon("joint").params(
+    CommandSpec::new("motion.study", "Motion Study", study).at("SOLID", "ASSEMBLE").icon("joint").params(
         "name?; study? (edit an existing one); steps? (timeline length, default 100); keys: [{joint, index?, points: [[step, value], …]}] \
          (values: degrees for angles, mm for distances, or expressions)",
     ),
@@ -285,7 +285,7 @@ fn drive_with_contact(s: &mut Session, want: &[(u64, Vec<f64>)]) -> Result<Value
     Ok(json!({"values": values, "stopped_by_contact": stopped, "conflicts": sol.conflicts.len()}))
 }
 
-/// Drive one joint (FusionMoveJointsCommand), honouring contact sets.
+/// Drive one joint (joint.drive), honouring contact sets.
 pub fn drive_joint(s: &mut Session, id: u64, q: Vec<f64>) -> Result<Value> {
     drive_with_contact(s, &[(id, q)])
 }
@@ -311,7 +311,7 @@ fn disable_all(s: &mut Session, _p: &Value) -> Result<Value> {
 }
 
 fn new_set(s: &mut Session, p: &Value) -> Result<Value> {
-    let cmd = "ContactSetCmd";
+    let cmd = "contact.create";
     let occ = occurrences(s, p, cmd)?;
     if occ.len() < 2 {
         return Err(bad(cmd, "a contact set needs two or more occurrences"));
@@ -387,7 +387,7 @@ fn study_index(s: &Session, p: &Value, cmd: &str) -> Result<usize> {
 }
 
 fn study(s: &mut Session, p: &Value) -> Result<Value> {
-    let cmd = "FusionMotionStudyCommand";
+    let cmd = "motion.study";
     let existing = if p.get("study").is_some() { Some(study_index(s, p, cmd)?) } else { None };
     let steps = match p.get("steps") {
         Some(v) => {