参考所有分组，完成尽量多的内容。禁止顺手扩功能 smoke：锁定kinematics源码锚点

check-linuxcnc-kinematics-source-map.sh

@@ -8,6 +8,20 @@ cd "$(dirname "$0")"
 # kinematics, posemath, switchkins INI/HAL/remap/tooldata/assets, and adjacent
 # build metadata. It validates source coverage documentation only; it does not
 # add or interpret CNC behavior.
+linuxcnc_root=${LINUXCNC_ROOT:-../linuxcnc}
+linuxcnc_root=$(cd "$linuxcnc_root" && pwd)
+
+grep -F 'GENSERKINSSRCS := emc/kinematics/ugenserkins.c' \
+    "$linuxcnc_root/src/emc/kinematics/Submakefile" >/dev/null
+grep -F 'extern int kinematicsInverse(const struct EmcPose * world,' \
+    "$linuxcnc_root/src/emc/kinematics/kinematics.h" >/dev/null
+grep -F 'extern int kinematicsSwitch(int switchkins_type);' \
+    "$linuxcnc_root/src/emc/kinematics/kinematics.h" >/dev/null
+grep -F 'motion.switchkins-type' \
+    "$linuxcnc_root/configs/sim/axis/vismach/5axis/bridgemill/5axis.ini" >/dev/null
+grep -F '#<kinstype>' \
+    "$linuxcnc_root/configs/sim/axis/vismach/5axis/bridgemill/remap_subs/428remap.ngc" >/dev/null
+
 python3 - <<'PY'
 from pathlib import Path
 import re
@@ -49,6 +63,11 @@ for group in expected_groups:
         )
 
 required_phrases = [
+    "LinuxCNC Source Anchors",
+    "`src/emc/kinematics/Submakefile`",
+    "`src/emc/kinematics/kinematics.h`",
+    "motion.switchkins-type",
+    "`#<kinstype>` remap assignment",
     "not browser API surface",
     "OPFS-only",
     "derive M428/M429/M430 cases from",

docs/linuxcnc-kinematics-source-map.md

@@ -22,6 +22,18 @@ groups:
 | `asset` | 122 | LinuxCNC INI-adjacent HAL, README, GUI, demo, PYVCP, and other source assets. |
 | `tooldata` | 10 | LinuxCNC tool table files referenced by covered M428/M429/M430 INI files. |
 
+## LinuxCNC Source Anchors
+
+- `src/emc/kinematics/Submakefile` defines the kinematics build source surface,
+  including `GENSERKINSSRCS`.
+- `src/emc/kinematics/kinematics.h` declares `kinematicsInverse()` and
+  `kinematicsSwitch()` for switchkins-capable modules.
+- `configs/sim/axis/vismach/5axis/bridgemill/5axis.ini` wires
+  `motion.switchkins-type` and representative M428/M429/M430 switchkins
+  configuration.
+- `configs/sim/axis/vismach/5axis/bridgemill/remap_subs/428remap.ngc`
+  provides a representative `#<kinstype>` remap assignment.
+
 ## Boundaries
 
 - `asset`, `metadata`, `header`, and `tooldata` entries are source coverage,