{
  "finding": "Engineer mine individual movement bypasses the native group movement envelope",
  "status": "source demonstrated and independently reproduced by actual-method baseline runtime failure; corrected source green",
  "trigger": "An original on-foot mine carrier at an accepted HQ road-interception post is selected for a geometrically valid mine position outside its current group utility IsPositionAllowed envelope. Existing Begin calls Owned then issues priority1000 individual movement; Owned never checks that envelope. A current native Defend waypoint with radius30 and mine position50m away is a concrete rejected-native-envelope/admitted-controller case.",
  "owned_reference": {
    "path": "/home/jakub/devel/escapists/escapists-ai/Scripts/Game/EscapistsAI/EAI_HQRoadblocks.c",
    "lines": "374-392",
    "behavior": "Before starting its mine task, original calls engineer group utility.IsPositionAllowed(point). Original engineers were a separate group with GetOut waypoint; defending crew used a different group."
  },
  "sdk": {
    "path": "/tmp/erri-vanilla-stock/scripts/Game/AI/Components/SCR_AIGroupUtilityComponent.c",
    "lines": "917-935",
    "meaning": "Current SCR_DefendWaypoint allows strictly inside its 3D completion radius; other waypoints use strictly less than max autonomous distance from group center of mass. This is not a generic forbidden zone or navmesh predicate.",
    "installed_binding": "/tmp/erri-mine-zones-review-0558/sdk-bindings.json"
  },
  "production_fix": {
    "file": "addons/core/Scripts/Game/ERR/10_AI/ERR_EngineerMine.c",
    "method": "Owned",
    "change": "Require current group utility and IsPositionAllowed(m_Position).",
    "coverage": "Begin already calls Owned before exact item tombstone and first movement; Tick calls it before preparation/removal/placement, and final arming calls it again. Denial takes existing Stop path. No new movement, retry, callback policy, item refund or radius mutation."
  },
  "limits": [
    "The native Defend waypoint radius is30m, so current25-60m candidate band only admits25..<30m in3D. No radius widening or alternate candidate retry is introduced; geometrically selected sites outside envelope conservatively refuse.",
    "Existing HQ EngineerMineAttempted remains spent on a refused group attempt; item tombstone is not inserted on initial envelope refusal.",
    "No native behavior qualification or compiler tests run by this author; peer owns focused actual-method tests."
  ],
  "artifacts": {
    "patch": "/tmp/erri-base-review-0558/fix.patch",
    "manifest": "/tmp/erri-base-review-0558/source-manifest.json",
    "test_proposal": "/tmp/erri-mine-zones-tests-0558"
  },
  "provenance": {
    "/home/jakub/devel/escapists/escapists-ai/Scripts/Game/EscapistsAI/EAI_HQRoadblocks.c": "128776f0b448162ee36cfc71b2a38d2cd06d6d6e4679253f215896aa3fcabb98",
    "/tmp/erri-vanilla-stock/scripts/Game/AI/Components/SCR_AIGroupUtilityComponent.c": "d808ed61832e55001f49a5be87b6117341ebfa12a972a839de8c5a8ecd6590eb",
    "/home/jakub/devel/escapistsrereintroduced/addons/core/Scripts/Game/ERR/10_AI/ERR_HQ.c": "5d66c53baf8762e76ae59e28721edaa348014af6d988d42891d9a84a6cf44969"
  },
  "preservation": {
    "original_read_only": true,
    "successor_read_only": true,
    "native_launched": false,
    "compiler_launched": false
  },
  "validation": {
    "source_review": "/tmp/erri-mine-zones-review-0558/review.json",
    "actual_method_tests": "/tmp/erri-mine-zones-tests-0558/review.json",
    "green": "/tmp/erri-mine-zones-tests-0558/green.log",
    "baseline_runtime_red": "/tmp/erri-mine-zones-tests-0558/baseline-red.log",
    "begin_only_guard_mutation_runtime_red": "/tmp/erri-mine-zones-tests-0558/continuation-mutation-red.log",
    "test_sha256": "244ab49155000e5939a6c9d9e8f01fe8b14115119d548ba423ceffdd33ca9946",
    "execution": "Executed by independent test peer, not this author; peer reports baseline and mutation compiled then assertion-failed, corrected green."
  }
}