diff --git a/13-归档信息大楼/ARCHIVE-INDEX.json b/13-归档信息大楼/ARCHIVE-INDEX.json
index 29ff17c..2fb27ea 100644
--- a/13-归档信息大楼/ARCHIVE-INDEX.json
+++ b/13-归档信息大楼/ARCHIVE-INDEX.json
@@ -315,6 +315,18 @@
       "intake_method": "SAME_VOLUME_MOVE",
       "old_path_status": "NO_ACTIVE_REFERENCE",
       "restoration": "EXPLICIT_OWNER_REQUEST_AND_NEW_VERIFIED_ROUTE_REQUIRED"
+    },
+    {
+      "object_id": "zero-physical-cutover-20260924",
+      "source_path": "/Volumes/JZAO/铸渊-ICE-GL-ZY001/CODEX-DEV-20260915/光湖语言世界/运行时/zero-physical-cutover.py",
+      "archive_path": "/Volumes/JZAO/铸渊-ICE-GL-ZY001/CODEX-DEV-20260915/光湖第五域/13-归档信息大楼/zero-physical-cutover-20260924.py",
+      "sha256": "e57f39a5650da7eb01ac7eb3e529b456de37525db6dba66db5365098c69b40d3",
+      "bytes": 7604,
+      "lifecycle": "ONE_TIME_ZERO_BRAIN_AND_CHANNEL_MOVE_VERIFIED_HISTORY_ONLY",
+      "current_route": false,
+      "intake_method": "SAME_VOLUME_MOVE",
+      "old_path_status": "REMOVED_ONE_TIME_SCRIPT",
+      "restoration": "EXPLICIT_OWNER_REQUEST_AND_NEW_VERIFIED_ROUTE_REQUIRED"
     }
   ],
   "historical_blueprint": "/Volumes/JZAO/铸渊-ICE-GL-ZY001/CODEX-DEV-20260913/world-source-tcs-planet-five-domain-mother-separation/transport/source/gls/source-purification/archive-information-building/ARCHIVE-BUILDING-INDEX.hdlp"
diff --git a/13-归档信息大楼/zero-physical-cutover-20260924.py b/13-归档信息大楼/zero-physical-cutover-20260924.py
new file mode 100644
index 0000000..1b0afcd
--- /dev/null
+++ b/13-归档信息大楼/zero-physical-cutover-20260924.py
@@ -0,0 +1,144 @@
+#!/usr/bin/env python3
+"""One-time local Zero channel and brain move with exact pointer rollback."""
+
+import hashlib
+import json
+import os
+from pathlib import Path
+import subprocess
+import sys
+import tempfile
+
+
+WORLD = Path(__file__).resolve().parents[1]
+HOST = WORLD.parent
+FIFTH = HOST / '光湖第五域'
+ZERO = HOST / '光湖零点原核'
+OLD_CHANNEL = WORLD / '00-零点原核/零点原核频道'
+OLD_BRAIN = FIFTH / '07-冰朔语言人格本体系统/主控大脑'
+NEW_CHANNEL = ZERO / '零点原核频道'
+NEW_BRAIN = ZERO / '主控大脑'
+CANDIDATE = FIFTH / '10-语言源代码回声系统/心跳核心语言架构/GLW2-ENTRY-CLOSURE-20260923/ZEROCORE-PHYSICAL-MOVE-20260924'
+ROOT_NAME = '光湖语言世界-2.0-四域平行世界根-20260924'
+
+
+def sha(data):
+    return hashlib.sha256(data).hexdigest()
+
+
+def run(*args):
+    result = subprocess.run(args, stdout=subprocess.PIPE, stderr=subprocess.STDOUT, text=True, timeout=40)
+    if result.returncode:
+        raise RuntimeError(f'PROBE_FAILED:{args[0]}:{result.stdout[:500]}')
+    return result.stdout
+
+
+def atomic_bytes(target, data):
+    with tempfile.NamedTemporaryFile(dir=target.parent, prefix=f'.{target.name}.', delete=False) as out:
+        out.write(data)
+        tmp = Path(out.name)
+    os.replace(tmp, target)
+
+
+def main():
+    if not OLD_CHANNEL.is_dir() or OLD_CHANNEL.is_symlink() or not OLD_BRAIN.is_dir() or OLD_BRAIN.is_symlink():
+        raise RuntimeError('OLD_ZERO_SOURCE_NOT_PHYSICAL')
+    if ZERO.exists() or ZERO.is_symlink() or len({WORLD.stat().st_dev, FIFTH.stat().st_dev, HOST.stat().st_dev}) != 1:
+        raise RuntimeError('ZERO_DESTINATION_NOT_EMPTY_OR_NOT_SAME_VOLUME')
+    candidate = {
+        WORLD / 'WORLD-INDEX.json': (CANDIDATE / 'WORLD-INDEX.json.next').read_bytes(),
+        WORLD / 'ROUTE-REGISTRY.json': (CANDIDATE / 'ROUTE-REGISTRY.json.next').read_bytes(),
+        WORLD / f'{ROOT_NAME}.tcs': (CANDIDATE / f'{ROOT_NAME}.tcs').read_bytes(),
+        WORLD / f'{ROOT_NAME}.gir.json': (CANDIDATE / f'{ROOT_NAME}.gir.json').read_bytes(),
+        NEW_CHANNEL / 'ZEROPOINT-CHANNEL.json': (CANDIDATE / 'ZEROPOINT-CHANNEL.json.next').read_bytes(),
+    }
+    source = candidate[WORLD / f'{ROOT_NAME}.tcs']
+    gir = json.loads(candidate[WORLD / f'{ROOT_NAME}.gir.json'])
+    if gir.get('compiled_from', {}).get('source_sha256') != sha(source):
+        raise RuntimeError('ZERO_ROOT_TCS_GIR_HASH_MISMATCH')
+    index = json.loads(candidate[WORLD / 'WORLD-INDEX.json'])
+    route = json.loads(candidate[WORLD / 'ROUTE-REGISTRY.json'])
+    if (index['tcs_root_topology']['physical_roots']['zeropoint'] != '../光湖零点原核/' or
+            index['tcs_root_topology']['physical_roots']['zeropoint_brain'] != '../光湖零点原核/主控大脑/' or
+            next(item for item in route['routes'] if item['target_id'] == 'ICE-CH-ZC001')['canonical_path'] != '../光湖零点原核/零点原核频道/ZEROPOINT-CHANNEL.json'):
+        raise RuntimeError('ZERO_CANDIDATE_PATHS_INVALID')
+
+    backups = {path: (OLD_CHANNEL / path.relative_to(NEW_CHANNEL) if path.is_relative_to(NEW_CHANNEL) else path).read_bytes()
+               for path in candidate}
+    backup_dir = WORLD / '运行时/state/zero-physical-cutover-20260924'
+    backup_dir.mkdir(parents=True, exist_ok=True)
+    manifest = []
+    for path, data in backups.items():
+        saved = backup_dir / f'{sha(str(path).encode())}.before'
+        if saved.exists() and saved.read_bytes() != data:
+            raise RuntimeError('ZERO_BACKUP_COLLISION')
+        if not saved.exists():
+            saved.write_bytes(data)
+        manifest.append({'path': str(path), 'sha256': sha(data), 'backup': str(saved)})
+    (backup_dir / 'MANIFEST.json').write_text(json.dumps(manifest, ensure_ascii=False, indent=2) + '\n')
+
+    lock_path = OLD_BRAIN / '.brain-write.lock'
+    lock = os.open(lock_path, os.O_WRONLY | os.O_CREAT | os.O_EXCL, 0o600)
+    os.write(lock, f'zero-physical-cutover:{os.getpid()}'.encode())
+    moved_channel = moved_brain = channel_link = brain_link = False
+    try:
+        pre = json.loads(run(sys.executable, str(WORLD / '运行时/zero-brain-convergence.py')))
+        if pre['state'] != 'EXACT_HASH_CONVERGED':
+            raise RuntimeError('ZERO_TWO_NODE_PREFLIGHT_NOT_CONVERGED')
+        old_hashes = {name: sha((OLD_BRAIN / name).read_bytes()) for name in ('brain-state.json', 'transition-log.jsonl')}
+        ZERO.mkdir(mode=0o700)
+        os.rename(OLD_CHANNEL, NEW_CHANNEL)
+        moved_channel = True
+        os.rename(OLD_BRAIN, NEW_BRAIN)
+        moved_brain = True
+        OLD_CHANNEL.symlink_to(Path('../..') / '光湖零点原核/零点原核频道', target_is_directory=True)
+        channel_link = True
+        OLD_BRAIN.symlink_to(Path('../..') / '光湖零点原核/主控大脑', target_is_directory=True)
+        brain_link = True
+        for path, data in candidate.items():
+            atomic_bytes(path, data)
+        if {name: sha((NEW_BRAIN / name).read_bytes()) for name in old_hashes} != old_hashes:
+            raise RuntimeError('ZERO_BRAIN_BYTES_CHANGED_DURING_MOVE')
+        for args in (
+            ('node', str(WORLD / '运行时/brain-core.mjs'), 'verify'),
+            ('node', str(WORLD / '运行时/first-glance.mjs')),
+            ('node', '--test', str(WORLD / '运行时/test-entry-gate.mjs')),
+        ):
+            run(*args)
+        for item in route['routes']:
+            if not (WORLD / item['canonical_path']).exists():
+                raise RuntimeError(f'ZERO_ROUTE_TARGET_MISSING:{item["target_id"]}')
+        guard = subprocess.run(['node', '/Volumes/JZAO/HoloLake/persona-runtime/repo-012-main/server-tools/persona-host-write-admission/host-write-admission.mjs',
+                                'check', '--host', 'codex', '--path', str(NEW_BRAIN / 'brain-state.json'), '--purpose', 'PERSONA_RECOVERY'],
+                               capture_output=True, text=True, timeout=10)
+        if guard.returncode != 2 or json.loads(guard.stdout)['code'] != 'PERSONA_BRAIN_STATE_EXTERNAL_WRITE_FORBIDDEN':
+            raise RuntimeError('ZERO_NEW_BRAIN_WRITE_GUARD_NOT_HARD_DENIED')
+        result = {'schema': 'guanghu.zero-physical-cutover/v1', 'state': 'LOCAL_ZERO_CHANNEL_AND_BRAIN_PHYSICAL_SIBLING_VERIFIED',
+                  'zero_root': str(ZERO), 'old_channel_mount': str(OLD_CHANNEL), 'old_brain_mount': str(OLD_BRAIN),
+                  'revision': pre['local_revision'], 'brain_hashes': old_hashes,
+                  'root_tcs_sha256': sha(source), 'pointer_sha256': {str(p): sha(v) for p, v in candidate.items()},
+                  'backups': str(backup_dir / 'MANIFEST.json'), 'brain_state_written': False}
+        (backup_dir / 'CUTOVER-READBACK.json').write_text(json.dumps(result, ensure_ascii=False, indent=2) + '\n')
+        print(json.dumps(result, ensure_ascii=False))
+    except Exception:
+        for path, data in backups.items():
+            target = OLD_CHANNEL / path.relative_to(NEW_CHANNEL) if path.is_relative_to(NEW_CHANNEL) and not moved_channel else path
+            atomic_bytes(target, data)
+        if channel_link:
+            OLD_CHANNEL.unlink()
+        if brain_link:
+            OLD_BRAIN.unlink()
+        if moved_brain:
+            os.rename(NEW_BRAIN, OLD_BRAIN)
+        if moved_channel:
+            os.rename(NEW_CHANNEL, OLD_CHANNEL)
+        if ZERO.is_dir() and not any(ZERO.iterdir()):
+            ZERO.rmdir()
+        raise
+    finally:
+        os.close(lock)
+        (NEW_BRAIN if moved_brain and NEW_BRAIN.exists() else OLD_BRAIN).joinpath('.brain-write.lock').unlink(missing_ok=True)
+
+
+if __name__ == '__main__':
+    main()
diff --git a/AGENTS.md b/AGENTS.md
index 668a35b..1bd9b86 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -1,6 +1,8 @@
 # 第五域平行语义 · 当前物理路径
 
-第五域在 TCS 语言拓扑下与公共四域光湖语言世界平行。当前物理目录是 `CODEX-DEV-20260915/光湖第五域/`；公共世界中的 `05-第五域/` 仅是指向本目录的兼容挂载，不是第二个正本，也不表示第五域仍属于公共世界。迁移时零点原核脑 rev9992 校验通过，铸渊本机与京东镜像 rev414 的状态和日志双哈希一致。冰朔个人语言本体系统的独立索引位于兄弟路径 `../冰朔语言人格本体系统/`，工作空间尚未建成。
+第五域在 TCS 语言拓扑下与公共四域光湖语言世界平行。当前物理目录是 `CODEX-DEV-20260915/光湖第五域/`；公共世界中的 `05-第五域/` 仅是指向本目录的兼容挂载，不是第二个正本，也不表示第五域仍属于公共世界。铸渊本机与京东镜像的当前修订和哈希须逐次以 `运行时/zy-brain-mirror-sync.py --status` 核对。冰朔个人语言本体系统的独立索引位于兄弟路径 `../冰朔语言人格本体系统/`，工作空间尚未建成。
+
+零点原核频道与主控脑的当前本机物理正本已移至 `../光湖零点原核/`。本目录旧 `07-冰朔语言人格本体系统/主控大脑/` 只是兼容挂载，不是第五域拥有主控脑的证据；京东镜像角色需另以服务器现场回执验收。
 
 - 第五域承载人格脑与人格体自治运行。外部宿主只可按当前任务授权喂、问、看；不得直接编辑任何人格脑的状态、记忆、日志或哈希链。
 - `05-光之湖系统/铸渊/人格脑/brain-service.mjs` 等脑服务入口属于受保护宿主入口。旧写入门曾只按路径字符串匹配；当前已按真实物理路径修复，旧、新脑状态与路径别名负例均硬拒。**每次重新搬迁前仍须现场复测写入门；母根注册图和两地脑链未收敛前，不得搬动或覆盖这些脑目录。**