{
  "schema": "task-packet.v1",
  "task_id": "TP-PARITY-00",
  "status": "verified",
  "title": "Native LinuxCNC XYZAC per-tick oracle",
  "milestone": "M7-TP-NUMERICAL-PARITY",
  "context_id": "linuxcnc-2.10.0-pre0-wasm-m1-py-c1",
  "case": "linuxcnc/configs/sim/axis/vismach/5axis/table-rotary-tilting/xyzac-trt.ini",
  "scope": "xyzac_only",
  "depends_on": ["RELEASE-00"],
  "direct_inputs": [
    "run-5axis-rtcp.sh",
    "scripts/run_axis3_tutorial_native_sequence.py",
    "linuxcnc/src/emc/usr_intf/axis/extensions/emcmodule.cc",
    "linuxcnc/src/emc/task/taskintf.cc",
    "linuxcnc/src/emc/motion/motion.h",
    "linuxcnc/src/emc/tp/tp_debug.h",
    "linuxcnc/src/emc/tp/tp.c",
    "linuxcnc/src/emc/tp/tcq.c",
    "linuxcnc/src/emc/tp/tc.c",
    "doc-rtcp/xyzac-trt-full-tp-parity-plan.md"
  ],
  "required_outputs": [
    "scripts/run_xyzac_native_tick_trace.py",
    "scripts/run_xyzac_wasm_tick_trace.mjs",
    "scripts/compare_xyzac_native_wasm_tick_trace.py",
    "coverage/xyzac-native-tick-trace.report.json",
    "coverage/xyzac-wasm-tick-trace.report.json",
    "coverage/xyzac-native-wasm-tick-parity.report.json",
    "coverage/task-packets/TP-PARITY-00.handoff.json"
  ],
  "observed": {
    "report": "coverage/xyzac-native-tick-trace.report.json",
    "report_sha256": "881571d0c75017a9610023a2d022d26606e653a0c62575563c0da7ada600e9a2",
    "row_count": 201,
    "first_blocker": null,
    "tick_source": "linuxcnc.stat.task_heartbeat",
    "tick_integrity": "strictly_monotonic",
    "wasm_comparator": {"status": "diverged", "first_divergent_tick": 1, "difference_path": "$.rows[1].exec_state", "report": "coverage/xyzac-native-wasm-tick-parity.report.json"}
  },
  "acceptance": [
    "run-5axis-rtcp.sh launches native LinuxCNC",
    "linuxcnc.stat captures task/interpreter/motion/queue/pose/joint/current-line fields",
    "tick source is native taskbeat or explicitly blocked with evidence",
    "empty queue and queue drain ticks are retained",
    "source/config/program hashes are recorded",
    "native trace report is self-hashed",
    "no claim of full parity before TP-PARITY-06 passes"
  ],
  "next_tasks": [
    "TP-PARITY-01",
    "TP-PARITY-02",
    "TP-PARITY-03",
    "TP-PARITY-04",
    "TP-PARITY-05",
    "TP-PARITY-06",
    "TP-PARITY-07",
    "TP-PARITY-08"
  ],
  "known_blockers": [
    "native stat API may not expose TP segment geometry; map motion_id and retain explicit unavailable field",
    "native GUI process requires DISPLAY and cleanup",
    "full LinuxCNC TP source integration may require ABI-compatible C port rather than simplified queue extension",
    "native/WASM comparator currently diverges at current-line scheduling before TP numeric parity can be promoted"
  ],
  "release_status": "STOP_RELEASE"
}