diff --git a/research-wiki/plans/2026-07-16-preflight-wp4-resilience.md b/research-wiki/plans/2026-07-16-preflight-wp4-resilience.md
index 9016379..11e64cc 100644
--- a/research-wiki/plans/2026-07-16-preflight-wp4-resilience.md
+++ b/research-wiki/plans/2026-07-16-preflight-wp4-resilience.md
@@ -22,7 +22,7 @@
 | TTL | `main.py:41` `redis_cache_ttl=86400`；`:93` `ttl_s = ... if >0 else None` |
 | 熔断 | `adapters/breaker.py:24` `is_open`（L36-37 到期即放行，无探针锁）；`record_failure:39`；`record_success:63` |
 | gate INFRA | `app/harness/validate.py:257` `_resolve_baseline_block`（put L303-304）；`_check_infra_guard:384`（累计检查 L593）；`BaselineCache` in `gate_ladder.py:344`（put L384 原子 L401-403） |
-| 持久化 | `app/harness/workspace.py` 4 处非原子 write_text：`_scaffold:111`/`update_manifest:282`/`record_run:311`/`update_best:365`；原子范式 `checkpoint.py:257-260` |
+| 持久化 | `app/harness/workspace.py` 4 处非原子 `manifest.json` write_text（WP2 后行号）：`_scaffold:111`/`update_manifest:289`/`record_run:318`/`update_best:372`；原子范式 `checkpoint.py:257-260`。**以 `grep -n 'manifest.json").write_text' app/harness/workspace.py` 现场定位为准** |
 | 基线元数据 | `app/harness/log.py:57` `HarnessLog.__init__`（upsert `_runs` L73-82）；`RunLogImpl._read_table:247`（只读） |
 | dual_metric | `app/harness/observation.py:119` `write_dual_metric`（version_kind final L138）；runner 调用 `runner.py:1444-1448` |
 | 配置 | `.env:65` `REDIS_CACHE_TTL=0`；`.env.example:49` `=86400` |
@@ -426,7 +426,7 @@ def _atomic_write_json(path: Path, data: dict) -> None:
     tmp.write_text(json.dumps(data, ensure_ascii=False, indent=2), encoding="utf-8")
     os.replace(tmp, path)
 ```
-把 `_scaffold_workspace`（L111）、`update_manifest`（L282）、`record_run`（L311）、`update_best`（L365）四处的 `(...).write_text(json.dumps(...))` 替换为 `_atomic_write_json(<path>, <data>)`。
+把 `_scaffold_workspace`（~L111）、`update_manifest`（~L289）、`record_run`（~L318）、`update_best`（~L372）四处的 `(workspace_dir / "manifest.json").write_text(json.dumps(...))` 替换为 `_atomic_write_json(workspace_dir / "manifest.json", <data>)`（用 `grep -n 'manifest.json").write_text' app/harness/workspace.py` 定位全部 4 处，行号随 WP2 改动漂移）。
 
 - [ ] **Step 4: 运行测试确认通过 + 回归**