chore(release): bump MemHub build number to 34

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

CHANGELOG.md

@@ -4,6 +4,14 @@ Hy Memory and MemHub are versioned and released independently.
 
 ## Unreleased
 
+- MemHub shows when working and coding experiences were talked about. After
+  the SDK upgrade every one of them read "时间未知" (time unknown) because the
+  SDK never stored their conversation time; hy-memory 2.0.7 stores it and
+  Core now passes it through the memory list, detail, search and home
+  summary. An experience stored before 2.0.7 shows its write time, labelled
+  "写入于" / "写入时间", instead of "时间未知". Metadata repair also writes
+  the conversation time it recovers from the migration bundle into the SDK's
+  coding/working stores when they already have the column.
 - The SDK migration no longer fails its first run on a home with legacy
   vectors: reattaching them left a Chroma instance open with its own settings,
   and the readback that followed could not open the same store
@@ -68,6 +76,24 @@ Hy Memory and MemHub are versioned and released independently.
   `hy_node_permissions` proof table. Evidence, governed memories, model
   profiles, SDK stores, and source/host grants are preserved.
 
+## Hy Memory 2.0.7 — 2026-10-28
+
+- Published
+  [`hy-memory==2.0.7`](https://pypi.org/project/hy-memory/2.0.7/).
+- Coding and working experiences and facts now keep their conversation time.
+  `add(..., memory_at=...)` reached only the chat path before; the
+  productivity path dropped it, so every experience had only its write time
+  and MemHub showed them as "时间未知" (time unknown). `coding_memory_meta`
+  and `working_fact` gain a nullable `memory_at` column (epoch seconds) in
+  both the working and coding stores; existing databases get it on open, and
+  their old rows stay `None`. Without `memory_at` a write uses the time the
+  request arrived, as chat does. When an experience is updated by a later
+  conversation it keeps the later of the two times.
+- `list_memories` (`scene="coding"`, `"working"` and `"all"`), `get` and
+  `search` return `memory_at` for experiences and facts in the same field and
+  format as chat (epoch seconds, `None` when unknown). Experience search
+  results now also carry `created_at`.
+
 ## Hy Memory 2.0.6 — 2026-10-27
 
 - Published

hy_memory/client.py

@@ -1544,6 +1544,7 @@ class HyMemoryClient:
                 # LLM 写的"这个结论一路怎么改成现在这样"，直接进提示词；
                 # 没被覆盖过就是空串。不参与检索——召回认的是 statement 的当前值。
                 "fact_chain_summary": fact.fact_chain_summary,
+                "memory_at": _epoch_seconds(fact.memory_at),
                 "created_at": fact.created_at.isoformat() if fact.created_at else None,
                 "score": round(float(score), 4),
                 "source": fact.source,
@@ -1652,6 +1653,8 @@ class HyMemoryClient:
                 "score": (round(float(score_by_id[d.experience_id]), 4)
                           if d.experience_id in score_by_id else None),
                 "confidence": d.confidence,
+                "memory_at": _epoch_seconds(d.memory_at),
+                "created_at": d.created_at.isoformat() if d.created_at else None,
                 "updated_at": d.updated_at.isoformat() if d.updated_at else None,
                 "source": d.source,
                 "extraction_source": d.extraction_source,
@@ -1953,6 +1956,7 @@ class HyMemoryClient:
                   "content"    chat 正文；经验为 "task\nsolution"；事实为 statement
                   "score"      RRF 融合分；"lane_score" 为该路原始分；"lane_rank" 为该路名次
                   "source", "created_at", "updated_at"（秒级 epoch，取不到为 None）
+                  "memory_at"  对话时间（秒级 epoch），各路原有字段，三路同名同格式
                 chat 路内部名次：normal → schema → proactive 依次排；working/coding 路
                 内部名次：事实与经验各按原顺序交替（事实在前），两层谁也不压谁。
         """
@@ -2144,7 +2148,8 @@ class HyMemoryClient:
                           "limit", "offset", "request_id", "elapsed_ms"}
                 每条带 "scene"、"kind"（chat | experience）、"memory_id"、"content"
                 （经验为 "task\nsolution"）、"source"、"status"、"created_at"、
-                "updated_at"（秒级 epoch），以及该路原有字段。
+                "updated_at"（秒级 epoch），以及该路原有字段（含对话时间
+                "memory_at"，秒级 epoch，三路同名同格式）。
         """
         return self._loop_thread.run(
             self.async_list_memories(
@@ -2967,6 +2972,7 @@ class HyMemoryClient:
                     session_id=session_id,
                     request_id=request_id,
                     source=source,
+                    memory_at=memory_at,
                 )
                 # Public receipt always identifies the productivity namespace.
                 resp["variant"] = scene_variant
@@ -5920,6 +5926,7 @@ class HyMemoryClient:
                 "source_fact_ids": list(d.source_fact_ids),
                 "confidence": d.confidence,
                 "status": MemoryStatus.ACTIVE.value,
+                "memory_at": _epoch_seconds(d.memory_at),
                 "created_at": d.created_at.isoformat() if d.created_at else None,
                 "updated_at": d.updated_at.isoformat() if d.updated_at else None,
                 "source": d.source,

hy_memory/coding/fact_reconciler.py

@@ -454,9 +454,10 @@ class WorkingFactReconciler:
         workspace_id: Optional[str] = None,
         branch: Optional[str] = None,
         source: str = "default",
+        memory_at: Optional[datetime] = None,
     ) -> Tuple[List[WorkingFact], List[FactReconcileOp]]:
         """
-        执行 reconcile + 持久化。
+        执行 reconcile + 持久化。memory_at 是这段对话的时间，记到新事实上。
 
         Returns:
             (真正落库的新事实, 执行过的 ops)。LLM 挂掉时退化为全 INSERT 不覆盖，
@@ -493,6 +494,7 @@ class WorkingFactReconciler:
             workspace_id=workspace_id,
             branch=branch,
             source=source,
+            memory_at=memory_at,
         )
         logger.info(
             f"[fact-reconcile] drafts={len(drafts)} inserted={len(facts)} "
@@ -781,6 +783,7 @@ class WorkingFactReconciler:
         workspace_id: Optional[str],
         branch: Optional[str] = None,
         source: str = "default",
+        memory_at: Optional[datetime] = None,
     ) -> Tuple[List[WorkingFact], List[FactReconcileOp]]:
         inserted: List[WorkingFact] = []
         ops: List[FactReconcileOp] = []
@@ -801,6 +804,7 @@ class WorkingFactReconciler:
                 subject=draft.subject,
                 details=draft.details,
                 status="active",
+                memory_at=memory_at,
             )
 
             allowed = {c.fact_id for c in (candidates[idx] if idx < len(candidates) else [])}

hy_memory/coding/reconciler.py

@@ -577,6 +577,7 @@ class CodingMemoryReconciler:
             confidence=d.confidence,
             source=d.source,
             extraction_source=d.extraction_source,
+            memory_at=d.memory_at,
         )
 
 

hy_memory/coding/store.py

@@ -86,6 +86,7 @@ CREATE TABLE IF NOT EXISTS coding_memory_meta (
     confidence       REAL NOT NULL DEFAULT 0.7,
     source           TEXT NOT NULL DEFAULT 'default',
     extraction_source TEXT NOT NULL DEFAULT 'auto_extract',
+    memory_at        INTEGER,
     created_at       TEXT NOT NULL,
     updated_at       TEXT NOT NULL
 );
@@ -109,6 +110,7 @@ CREATE TABLE IF NOT EXISTS working_fact (
     derived_experience_ids TEXT NOT NULL DEFAULT '[]',
     status                 TEXT NOT NULL DEFAULT 'active',
     fact_chain_summary     TEXT NOT NULL DEFAULT '',
+    memory_at              INTEGER,
     created_at             TEXT NOT NULL
 );
 -- 反查前驱（谁的 fact_link 指向我）走这个索引，写演变总结时要顺着链往回走
@@ -164,6 +166,8 @@ _ADDED_COLUMNS = {
     "coding_memory_meta": {
         "source_fact_ids": "TEXT NOT NULL DEFAULT '[]'",
         "extraction_source": "TEXT NOT NULL DEFAULT 'auto_extract'",
+        # 对话时间，秒级 epoch（同 chat）。老库里的行是 NULL：那时没存过。
+        "memory_at": "INTEGER",
     },
     # 早期版本存过一列 fact_chain（机械累积的历代说法），已废弃：同样的信息顺着
     # fact_link 反查就有。老库里那一列留着不管，有默认值不影响插入。
@@ -177,6 +181,7 @@ _ADDED_COLUMNS = {
         "subject": "TEXT NOT NULL DEFAULT ''",
         "details": "TEXT NOT NULL DEFAULT ''",
         "source": "TEXT NOT NULL DEFAULT 'default'",
+        "memory_at": "INTEGER",
     },
 }
 
@@ -290,6 +295,29 @@ def _parse_dt(s: Optional[str]) -> Optional[datetime]:
         return None
 
 
+def _from_epoch(value: Any) -> Optional[datetime]:
+    """memory_at 列（秒级 epoch）→ datetime；NULL 或坏值返回 None。"""
+    if value is None:
+        return None
+    try:
+        return datetime.fromtimestamp(int(value))
+    except Exception:
+        return None
+
+
+def _to_epoch(value: Optional[datetime]) -> Optional[int]:
+    return int(value.timestamp()) if isinstance(value, datetime) else None
+
+
+def _later(a: Optional[datetime], b: Optional[datetime]) -> Optional[datetime]:
+    """两个对话时间取较晚的；一边缺就取另一边。"""
+    if a is None:
+        return b
+    if b is None:
+        return a
+    return a if _to_epoch(a) >= _to_epoch(b) else b
+
+
 def _row_to_memory(row: sqlite3.Row) -> CodingMemory:
     """SQLite row → CodingMemory"""
     return CodingMemory(
@@ -308,6 +336,7 @@ def _row_to_memory(row: sqlite3.Row) -> CodingMemory:
         confidence=row["confidence"],
         source=row["source"],
         extraction_source=row["extraction_source"],
+        memory_at=_from_epoch(row["memory_at"]),
         created_at=_parse_dt(row["created_at"]),
         updated_at=_parse_dt(row["updated_at"]),
     )
@@ -334,6 +363,7 @@ def _row_to_fact(row: sqlite3.Row) -> WorkingFact:
         # 老库刚 ADD COLUMN 时可能取不到这一列，用 keys() 兜一下
         fact_chain_summary=(row["fact_chain_summary"] or ""
                             if "fact_chain_summary" in row.keys() else ""),
+        memory_at=_from_epoch(row["memory_at"]),
         created_at=_parse_dt(row["created_at"]),
     )
 
@@ -597,6 +627,8 @@ class CodingMemoryStore:
         memory.updated_at = datetime.utcnow()
         if memory.created_at is None:
             memory.created_at = prev.created_at
+        # 合并后的经验讲的是两段对话，对话时间取较晚的那段
+        memory.memory_at = _later(prev.memory_at, memory.memory_at)
         await _run_in_pool(self._upsert_sql_sync, memory)
         # 删旧 VDB
         await self._delete_vec_keys_by_count(memory.experience_id, prev_key_count)
@@ -1199,8 +1231,8 @@ class CodingMemoryStore:
                     experience_id, user_id, agent_id, task, search_keys, solution,
                     boundary_envs, workspace_id, branch, session_id,
                     files, source_fact_ids, confidence, source, extraction_source,
-                    created_at, updated_at
-                ) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+                    memory_at, created_at, updated_at
+                ) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
                 ON CONFLICT(experience_id) DO UPDATE SET
                     user_id         = excluded.user_id,
                     agent_id        = excluded.agent_id,
@@ -1216,6 +1248,7 @@ class CodingMemoryStore:
                     confidence      = excluded.confidence,
                     source          = excluded.source,
                     extraction_source = excluded.extraction_source,
+                    memory_at       = excluded.memory_at,
                     updated_at      = excluded.updated_at
                 """,
                 (
@@ -1226,6 +1259,7 @@ class CodingMemoryStore:
                     json.dumps(memory.files, ensure_ascii=False),
                     json.dumps(memory.source_fact_ids, ensure_ascii=False),
                     memory.confidence, memory.source, memory.extraction_source,
+                    _to_epoch(memory.memory_at),
                     (memory.created_at or datetime.utcnow()).isoformat(),
                     (memory.updated_at or datetime.utcnow()).isoformat(),
                 ),
@@ -1366,8 +1400,8 @@ class CodingMemoryStore:
                     fact_id, user_id, agent_id, session_id, workspace_id, branch,
                     source, statement, files, subject, details,
                     fact_link, derived_experience_ids,
-                    status, fact_chain_summary, created_at
-                ) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+                    status, fact_chain_summary, memory_at, created_at
+                ) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
                 ON CONFLICT(fact_id) DO UPDATE SET
                     user_id                = excluded.user_id,
                     agent_id               = excluded.agent_id,
@@ -1382,7 +1416,8 @@ class CodingMemoryStore:
                     fact_link              = excluded.fact_link,
                     derived_experience_ids = excluded.derived_experience_ids,
                     status                 = excluded.status,
-                    fact_chain_summary     = excluded.fact_chain_summary
+                    fact_chain_summary     = excluded.fact_chain_summary,
+                    memory_at              = excluded.memory_at
                 """,
                 (
                     fact.fact_id, fact.user_id, fact.agent_id,
@@ -1395,6 +1430,7 @@ class CodingMemoryStore:
                     json.dumps(fact.derived_experience_ids, ensure_ascii=False),
                     fact.status,
                     fact.fact_chain_summary or "",
+                    _to_epoch(fact.memory_at),
                     (fact.created_at or datetime.utcnow()).isoformat(),
                 ),
             )

hy_memory/coding/types.py

@@ -25,6 +25,11 @@ FactStatus = Literal["active", "superseded"]
 MAX_FACT_CHAIN_ENTRIES = 8
 
 
+def _epoch(value: Optional[datetime]) -> Optional[int]:
+    """memory_at 对外是秒级 epoch，与 chat 一致。"""
+    return int(value.timestamp()) if isinstance(value, datetime) else None
+
+
 # ================================================================
 # 草稿（LLM extract 阶段输出）
 # ================================================================
@@ -53,6 +58,8 @@ class CodingMemoryDraft:
     files: List[str] = field(default_factory=list)
     source: str = "default"
     extraction_source: str = "auto_extract"
+    # 对话时间（SDK 注入，同 chat 的 memory_at）
+    memory_at: Optional[datetime] = None
 
     def __post_init__(self) -> None:
         from ..utils.source_filter import normalize_source
@@ -73,6 +80,7 @@ class CodingMemoryDraft:
             "files": list(self.files),
             "source": self.source,
             "extraction_source": self.extraction_source,
+            "memory_at": _epoch(self.memory_at),
         }
 
 
@@ -111,6 +119,9 @@ class CodingMemory:
     extraction_source: str = "auto_extract"
 
     # 时间
+    # memory_at 是对话时间（同 chat），created_at / updated_at 是写库时间。
+    # UPDATE 合并时取两者中较晚的那个对话时间，见 store.update。
+    memory_at: Optional[datetime] = None
     created_at: Optional[datetime] = None
     updated_at: Optional[datetime] = None
 
@@ -135,6 +146,7 @@ class CodingMemory:
             "confidence": self.confidence,
             "source": self.source,
             "extraction_source": self.extraction_source,
+            "memory_at": _epoch(self.memory_at),
             "created_at": self.created_at.isoformat() if self.created_at else None,
             "updated_at": self.updated_at.isoformat() if self.updated_at else None,
         }
@@ -249,6 +261,7 @@ class WorkingFact:
     fact_chain_summary: str = ""
 
     # 时间
+    memory_at: Optional[datetime] = None   # 对话时间（同 chat），没传时是收到请求的时间
     created_at: Optional[datetime] = None  # 产生时间，新的优先
 
     def __post_init__(self) -> None:
@@ -272,6 +285,7 @@ class WorkingFact:
             "derived_experience_ids": list(self.derived_experience_ids),
             "status": self.status,
             "fact_chain_summary": self.fact_chain_summary,
+            "memory_at": _epoch(self.memory_at),
             "created_at": self.created_at.isoformat() if self.created_at else None,
         }
 

hy_memory/coding/writer.py

@@ -18,6 +18,7 @@ CodingWriter - 写入端协调器
 import logging
 import time
 import uuid
+from datetime import datetime
 from typing import Any, Dict, List, Optional
 
 from ..agent.llm_provider import LLMProvider
@@ -79,9 +80,11 @@ class CodingWriter:
         session_id: Optional[str] = None,
         request_id: Optional[str] = None,
         source: str = "default",
+        memory_at: Optional[datetime] = None,
     ) -> Dict[str, Any]:
         """
-        working/coding 段写入端到端。返回响应 dict（兼容 client.add 返回结构）：
+        working/coding 段写入端到端。memory_at 是对话时间，记到这次写出的经验和
+        事实上；不传则用收到请求的时间（与 chat 链路一致）。返回响应 dict（兼容 client.add 返回结构）：
             {
                 "success": True,
                 "scene": "productivity",
@@ -101,6 +104,8 @@ class CodingWriter:
         """
         request_id = request_id or str(uuid.uuid4())
         t0 = time.perf_counter()
+        if memory_at is None:
+            memory_at = datetime.now()
 
         if not messages:
             return self._empty_response(request_id, t0)
@@ -172,6 +177,7 @@ class CodingWriter:
         # extractor 只负责内容；调用来源由 SDK 入口注入，不能交给 LLM 生成。
         for draft in drafts:
             draft.source = source
+            draft.memory_at = memory_at
 
         # 3. 经验层 reconcile + 持久化
         ops: List[ReconcileOp] = (
@@ -197,6 +203,7 @@ class CodingWriter:
                 workspace_id=workspace_id,
                 branch=branch,
                 source=source,
+                memory_at=memory_at,
             )
 
         experience_ids = [op.target_experience_id for op in ops

memhub/README.md

@@ -18,7 +18,7 @@ If you run into a problem, please open an Issue with the version, platform,repro
 
 ## 发行与平台合同
 
-源码当前固定使用公开 PyPI 正式版 `hy-memory==2.0.6`。MemHub 源码版本为 `1.0.5`
+源码当前固定使用公开 PyPI 正式版 `hy-memory==2.0.7`。MemHub 源码版本为 `1.0.5`
 （build 14），GitHub 仓库为
 [`Tencent-Hunyuan/Hy-Memory`](https://github.com/Tencent-Hunyuan/Hy-Memory)，npm 包名为
 `memhub-cli`。当前代码架构见
@@ -118,7 +118,7 @@ MemHub 的 SQLite 数据默认位于 `~/.one-memory`，不在 npm 包或 Runtime
 
 ## Hy Memory
 
-SDK 依赖固定为公开 PyPI 正式版 `hy-memory==2.0.6`。SDK 配置、权限边界及 search
+SDK 依赖固定为公开 PyPI 正式版 `hy-memory==2.0.7`。SDK 配置、权限边界及 search
 返回格式见 [`MEMORY.md`](MEMORY.md)。HY search 返回的 `content` 已包含 SDK 统一生成的
 逻辑时间和演化上下文；调用方不应再次转换时间戳或重复拼接 `When`。
 

memhub/SBOM.spdx.json

@@ -2352,7 +2352,7 @@
     {
       "SPDXID": "SPDXRef-Package-hy-memory",
       "name": "hy-memory",
-      "versionInfo": "2.0.6",
+      "versionInfo": "2.0.7",
       "downloadLocation": "NOASSERTION",
       "filesAnalyzed": false,
       "licenseConcluded": "Apache-2.0",

memhub/THIRD_PARTY_NOTICES.md

@@ -9,7 +9,7 @@ Per-package license texts are not reproduced here yet; the license
 column is filled in as part of release review, and the SBOM records
 `NOASSERTION` until then rather than guessing.
 
-## hy-memory 2.0.6
+## hy-memory 2.0.7
 
 License: Apache-2.0
 

memhub/apps/core/pyproject.toml

@@ -12,7 +12,7 @@ dependencies = [
     "fastapi>=0.141.1",
     "filelock>=3.32.4",
     # Public SDK version validated against MemHub's permission and recall contracts.
-    "hy-memory==2.0.6",
+    "hy-memory==2.0.7",
     # chromadb arrives through the HY SDK; locked here so an unrelated upgrade
     # cannot move the SDK's store. Built-in embedding consumes numpy directly.
     "chromadb==1.5.9",

memhub/apps/core/src/one_memory/hy_runtime_config.py

@@ -14,7 +14,7 @@ from pathlib import Path
 from typing import Literal, cast
 
 HY_MEMORY_DISTRIBUTION = "hy-memory"
-HY_MEMORY_VERSION = "2.0.6"
+HY_MEMORY_VERSION = "2.0.7"
 HY_MEMORY_NAMESPACE = "governed-v2"
 DiagnosticLogLevel = Literal["error", "warning", "info", "debug"]
 

memhub/apps/core/src/one_memory/hy_sdk_migration.py

@@ -426,6 +426,7 @@ def _repair_coding(
         path = root / name
         if not path.is_file():
             continue
+        _ensure_coding_schema(path)
         with closing(sqlite3.connect(path)) as database:
             tables = {
                 str(row[0])
@@ -437,10 +438,14 @@ def _repair_coding(
             ):
                 if table not in tables:
                     continue
+                # _ensure_coding_schema added it; an SDK without the column
+                # (before 2.0.7) leaves the time to the vector repair alone.
+                has_memory_at = "memory_at" in _columns(database, table)
                 rows = database.execute(
-                    f"SELECT {identifier},source,created_at FROM {table}"
+                    f"SELECT {identifier},source,created_at,"
+                    f"{'memory_at' if has_memory_at else 'NULL'} FROM {table}"
                 ).fetchall()
-                for memory_id, source, created_at in rows:
+                for memory_id, source, created_at, memory_at in rows:
                     desired = mapping.get(str(memory_id))
                     if desired is None:
                         continue
@@ -449,6 +454,13 @@ def _repair_coding(
                     if desired.source and source in {None, "", "default"}:
                         updates.append("source=?")
                         values.append(desired.source)
+                    if (
+                        has_memory_at
+                        and desired.memory_at is not None
+                        and memory_at != desired.memory_at
+                    ):
+                        updates.append("memory_at=?")
+                        values.append(desired.memory_at)
                     if desired.created_at is not None:
                         desired_created_at = (
                             datetime.fromtimestamp(desired.created_at, tz=UTC)
@@ -470,6 +482,32 @@ def _repair_coding(
     return repaired
 
 
+def _ensure_coding_schema(path: Path) -> None:
+    """Bring a Coding/Working store to the installed SDK's schema.
+
+    A migrated home's stores were written by an older SDK and may lack columns
+    the repair writes (``memory_at`` since hy-memory 2.0.7). The repair runs
+    before any SDK client opens them, so the SDK's own schema step is run here
+    rather than repeating its DDL. ``CodingMemoryStore`` has no public
+    schema-only entry point: ``initialize()`` also opens its Chroma
+    collections, which must stay closed during the offline repair. So only its
+    SQLite step runs, on a store object that carries nothing but that path.
+    """
+    from hy_memory.coding.store import (  # type: ignore[import-untyped]
+        CodingMemoryStore,
+    )
+
+    # Relies on the pinned SDK's internals (hy-memory==2.0.7 is pinned exactly).
+    store = CodingMemoryStore.__new__(CodingMemoryStore)
+    store._db_path = str(path)
+    store._conn = None
+    try:
+        store._init_sqlite_sync()
+    finally:
+        if store._conn is not None:
+            store._conn.close()
+
+
 def _batches[T](values: list[T] | tuple[T, ...]) -> Iterator[tuple[T, ...]]:
     for start in range(0, len(values), _BATCH):
         yield tuple(values[start : start + _BATCH])

memhub/apps/core/src/one_memory/hy_sdk_types.py

@@ -151,6 +151,7 @@ class HySdkMemoryRecord(BaseModel):
         if not content.strip():
             raise HySdkReadError("hy_memory_record_shape_unknown")
         status = str(raw.get("status") or "active")
+        memory_at = raw.get("memory_at")
         created_at = _epoch(raw.get("created_at"))
         updated_at = _epoch(raw.get("updated_at"))
         try:
@@ -167,6 +168,9 @@ class HySdkMemoryRecord(BaseModel):
                     str(raw["session_id"]) if isinstance(raw.get("session_id"), str) else None
                 ),
                 source=str(raw["source"]) if isinstance(raw.get("source"), str) else None,
+                # Conversation time; hy-memory 2.0.7 stores it for experiences
+                # and facts. Older stores leave it unknown.
+                memory_at=memory_at if isinstance(memory_at, int) else None,
                 gmt_created=created_at,
                 scene=cast(MemoryScene, variant),
                 kind=cast(MemoryKindName, kind),

memhub/apps/core/tests/test_memory_library_all_scenes.py

@@ -55,6 +55,9 @@ def chat_row(memory_id, content, *, source="cursor"):
     }
 
 
+EXPERIENCE_MEMORY_AT = 1_789_990_000
+
+
 def experience_row(memory_id, task, solution, *, variant="working", source="codebuddy"):
     return {
         "experience_id": memory_id,
@@ -63,6 +66,8 @@ def experience_row(memory_id, task, solution, *, variant="working", source="code
         "task": task,
         "solution": solution,
         "source": source,
+        # Conversation time, epoch seconds like chat (hy-memory 2.0.7).
+        "memory_at": EXPERIENCE_MEMORY_AT,
         "created_at": "2026-10-01T08:00:00",
         "updated_at": "2026-10-02T08:00:00",
         "_variant": variant,
@@ -446,6 +451,7 @@ def test_keyword_filter_reads_experience_and_fact_text(tmp_path, monkeypatch):
         assert experience["content"] == "Fix flaky tests\nPin the pytest seed"
         assert experience["status"] == "active"
         assert experience["updated_at"] > experience["created_at"]
+        assert experience["memory_at"] == EXPERIENCE_MEMORY_AT
         fact = by_id["fact-1"]
         assert (fact["scene"], fact["kind"], fact["variant"]) == ("coding", "fact", "coding")
         assert fact["content"] == "The pytest suite runs in CI"
@@ -488,6 +494,10 @@ def test_empty_query_lists_all_scenes_with_source_filter_and_totals(tmp_path, mo
             "chat",
             "chat",
         ]
+        assert [item["memory_at"] for item in body["memories"][:2]] == [
+            EXPERIENCE_MEMORY_AT,
+            EXPERIENCE_MEMORY_AT,
+        ]
         call = sdk.list_calls[0]
         assert call["scene"] == "all"
         assert call["include_sources"] is None
@@ -527,6 +537,7 @@ def test_detail_edit_delete_pass_kind_and_variant(tmp_path, monkeypatch):
         assert record["task"] == "Old task"
         assert record["solution"] == "Old solution"
         assert record["content"] == "Old task\nOld solution"
+        assert record["memory_at"] == EXPERIENCE_MEMORY_AT
         assert sdk.get_calls[-1] == ("exp-1", "experience", "working")
 
         # Chat detail with no namespace keeps the plain SDK call.
@@ -692,5 +703,6 @@ def test_home_summary_counts_what_the_memory_page_lists(tmp_path, monkeypatch):
         assert (home_list["offset"], home_list["limit"], home_list["order"]) == (0, 1, "desc")
         assert body["latest"]["memory_id"] == "exp-w"
         assert body["latest"]["scene"] == "working"
+        assert body["latest"]["memory_at"] == EXPERIENCE_MEMORY_AT
 
     run_with_sdk(tmp_path, monkeypatch, scenario)

memhub/apps/core/tests/test_sdk_data_plane_migration.py

@@ -137,19 +137,38 @@ def test_post_cutover_metadata_repair_restores_source_and_original_times(store):
     )
     coding = data_dir / "hy-memory" / "governed-v2" / "coding_cv.sqlite3"
     with sqlite3.connect(coding) as database:
-        database.execute(
-            "CREATE TABLE coding_memory_meta ("
-            "experience_id TEXT,user_id TEXT,agent_id TEXT,solution TEXT,"
-            "source TEXT,created_at TEXT,updated_at TEXT)"
+        # A store written by hy-memory 2.0.6, before the conversation time
+        # column: the repair must add it through the SDK and then fill it.
+        database.executescript(
+            """
+            CREATE TABLE coding_memory_meta (
+                experience_id TEXT PRIMARY KEY, user_id TEXT NOT NULL,
+                agent_id TEXT NOT NULL DEFAULT 'default_agent', task TEXT NOT NULL,
+                search_keys TEXT NOT NULL DEFAULT '[]', solution TEXT NOT NULL,
+                boundary_envs TEXT NOT NULL DEFAULT '', workspace_id TEXT,
+                branch TEXT, session_id TEXT, files TEXT NOT NULL DEFAULT '[]',
+                source_fact_ids TEXT NOT NULL DEFAULT '[]',
+                confidence REAL NOT NULL DEFAULT 0.7,
+                source TEXT NOT NULL DEFAULT 'default',
+                extraction_source TEXT NOT NULL DEFAULT 'auto_extract',
+                created_at TEXT NOT NULL, updated_at TEXT NOT NULL
+            );
+            CREATE TABLE working_fact (
+                fact_id TEXT PRIMARY KEY, user_id TEXT NOT NULL,
+                agent_id TEXT NOT NULL DEFAULT 'default_agent', session_id TEXT,
+                workspace_id TEXT, branch TEXT, source TEXT NOT NULL DEFAULT 'default',
+                statement TEXT NOT NULL, files TEXT NOT NULL DEFAULT '[]',
+                subject TEXT NOT NULL DEFAULT '', details TEXT NOT NULL DEFAULT '',
+                fact_link TEXT, derived_experience_ids TEXT NOT NULL DEFAULT '[]',
+                status TEXT NOT NULL DEFAULT 'active',
+                fact_chain_summary TEXT NOT NULL DEFAULT '', created_at TEXT NOT NULL
+            );
+            """
         )
         database.execute(
-            "CREATE TABLE working_fact ("
-            "fact_id TEXT,user_id TEXT,agent_id TEXT,statement TEXT,"
-            "source TEXT,created_at TEXT)"
-        )
-        database.execute(
-            "INSERT INTO coding_memory_meta VALUES "
-            "('sdk-1','local','scope','remember','default','now','now')"
+            "INSERT INTO coding_memory_meta "
+            "(experience_id,user_id,agent_id,task,solution,source,created_at,updated_at) "
+            "VALUES ('sdk-1','local','scope','remember','remember','default','now','now')"
         )
 
     result = repair_sdk_metadata_from_bundle(
@@ -168,10 +187,11 @@ def test_post_cutover_metadata_repair_restores_source_and_original_times(store):
         2026, 10, 18, tzinfo=UTC
     )
     with sqlite3.connect(coding) as database:
-        source, created_at = database.execute(
-            "SELECT source,created_at FROM coding_memory_meta WHERE experience_id='sdk-1'"
+        source, memory_at, created_at = database.execute(
+            "SELECT source,memory_at,created_at FROM coding_memory_meta WHERE experience_id='sdk-1'"
         ).fetchone()
     assert source == "workbuddy"
+    assert datetime.fromtimestamp(memory_at, tz=UTC) == datetime(2026, 10, 17, tzinfo=UTC)
     assert created_at.startswith("2026-10-18T00:00:00")
 
     repeated = repair_sdk_metadata_from_bundle(

memhub/apps/core/tests/test_sdk_migration_bundle.py

@@ -91,7 +91,7 @@ def test_bundle_contains_management_sdk_config_and_verified_manifest(tmp_path):
     assert manifest["bundle_id"] == "migration-1"
     assert manifest["sdk_namespace"] == "governed-v2"
     assert manifest["runtime_build"] == "build-13"
-    assert manifest["snapshot_sdk_version"] == "2.0.6"
+    assert manifest["snapshot_sdk_version"] == "2.0.7"
     paths = {item["path"]: item for item in manifest["files"]}
     assert {
         "management/one-memory.sqlite3",

memhub/apps/core/uv.lock

@@ -991,7 +991,7 @@ wheels = [
 
 [[package]]
 name = "hy-memory"
-version = "2.0.6"
+version = "2.0.7"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "chromadb" },
@@ -1008,9 +1008,9 @@ dependencies = [
     { name = "scikit-learn" },
     { name = "tiktoken" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/18/98/312ac8bcbe41e63200a93d296300b2e6748e1a532dad01f009dad57ba408/hy_memory-2.0.6.tar.gz", hash = "sha256:d0f54d54867ee7e722a8dd1a88a00c0576904435f15ae7899fe640840bff74bc", size = 855200, upload-time = "2026-10-27T07:53:10.022Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/17/b5/87a43c8d8b77fdfbbe7974d1e93af50ddf82317c5d56e180b865fb19e181/hy_memory-2.0.7.tar.gz", hash = "sha256:85636487e5bd4b6595a8c15301499efb365b6010c236a45c51c144f6986a4222", size = 854913, upload-time = "2026-10-28T03:35:38.127Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/27/f1/d4866cffe426d77b857168cc694b15df866f3d9f45152c17c148e1595db4/hy_memory-2.0.6-py3-none-any.whl", hash = "sha256:b0e666f8e89d1763bb31c0e67502df74434134a638ff6fd1912de9e936be2483", size = 918955, upload-time = "2026-10-27T07:53:07.686Z" },
+    { url = "https://files.pythonhosted.org/packages/7c/b8/a6e0bfd17aeb432b0470f4dc707271e6476f5ac34f3b301ab3ad2e1c0d83/hy_memory-2.0.7-py3-none-any.whl", hash = "sha256:80a501e17987202ee1150a91b071313e890300620f353f9e89c967286dc1a645", size = 919841, upload-time = "2026-10-28T03:35:35.399Z" },
 ]
 
 [[package]]
@@ -1837,7 +1837,7 @@ requires-dist = [
     { name = "fastapi", specifier = ">=0.141.1" },
     { name = "filelock", specifier = ">=3.32.4" },
     { name = "httpx", specifier = ">=0.28.1" },
-    { name = "hy-memory", specifier = "==2.0.6" },
+    { name = "hy-memory", specifier = "==2.0.7" },
     { name = "keyring", specifier = ">=25.7.0" },
     { name = "numpy", specifier = "==2.5.2" },
     { name = "onnxruntime", specifier = "==1.23.2" },

memhub/apps/web/src/MemoryMap.test.tsx

@@ -5,6 +5,7 @@ import type {
   MemoryGraphNode,
   MemoryGraphResponse,
   MemoryProcessingSummary,
+  SourceImportReceipt as Receipt,
   SourceResponse,
 } from "@one-memory/contracts";
 import {
@@ -39,6 +40,12 @@ import { afterEach, expect, it, vi } from "vitest";
 import { MemoryMap } from "./MemoryMap";
 import type { MemoryArrival } from "./memory-arrival-state";
 
+const { sourceReceipt } = vi.hoisted(() => ({
+  sourceReceipt: vi.fn(),
+}));
+vi.mock("./api", () => ({
+  getSourceImportReceipt: sourceReceipt,
+}));
 vi.mock("./MemoryGraph3D", () => ({
   MemoryGraph3D: ({
     graph,
@@ -510,7 +517,7 @@ it("D96: the memory page has no raw-dialogue tab and never loads the dialogue li
 it("D96: lists a memory by when its conversation happened, not when it was generated", () => {
   const today = new Date().toISOString();
   const thisYear = new Date().getFullYear();
-  const items = ["第一条", "第二条", "第三条"].map((content, i) => ({
+  const items = ["第一条", "第二条", "第三条", "第四条"].map((content, i) => ({
     ...memories[0],
     memory_id: `t${i}`,
     content,
@@ -525,10 +532,11 @@ it("D96: lists a memory by when its conversation happened, not when it was gener
         total: 519,
         offset: 100,
         limit: 100,
-        source_ids_by_memory: { t0: [], t1: [], t2: [] },
+        source_ids_by_memory: { t0: [], t1: [], t2: [], t3: [] },
         source_time_by_memory: {
           t0: { at: `${thisYear}-10-02T10:54:00`, basis: "conversation" },
           t1: { at: `${thisYear}-09-30T08:00:00`, basis: "import" },
+          t3: { at: `${thisYear}-09-29T08:00:00`, basis: "write" },
         },
       })}
     />,
@@ -540,6 +548,10 @@ it("D96: lists a memory by when its conversation happened, not when it was gener
   expect(
     within(list).getByRole("button", { name: /第二条/ }).textContent,
   ).toContain("导入于 9月30日");
+  // An experience stored without a conversation time names its write time.
+  expect(
+    within(list).getByRole("button", { name: /第四条/ }).textContent,
+  ).toContain("写入于 9月29日");
   // D99: the generated day keeps its own line, so a memory made today from an
   // old conversation still reads as new rather than looking misplaced.
   expect(
@@ -975,6 +987,35 @@ const importedSources = [
     imported_conversations: 1,
   },
 ] as SourceResponse[];
+const importedReceipt: Receipt = {
+  source_id: "codex",
+  measured_at: "2026-09-14T00:00:00Z",
+  messages: 5,
+  conversations: 2,
+  person_messages: 2,
+  agent_messages: 2,
+  tool_messages: 0,
+  unknown_author_messages: 1,
+  unknown_time_messages: 1,
+  examples: [
+    {
+      evidence_id: "raw-codex",
+      role: "user",
+      written_by: "person",
+      created_at: null,
+      excerpt: "合成来源原文，不是治理记忆。",
+      truncated: false,
+    },
+  ],
+};
+async function openSourceReceipt() {
+  await userEvent.click(
+    screen.getByRole("button", { name: "图中选择 Codex · 2 段" }),
+  );
+  await userEvent.click(screen.getByText("查看已读内容"));
+  await waitFor(() => expect(sourceReceipt).toHaveBeenCalledWith("codex"));
+}
+
 it("REV09: selecting an imported source retains the canvas and only its authorized node", async () => {
   render(<Host items={[]} sources={importedSources} />);
   const canvas = screen.getByTestId("canvas");
@@ -989,8 +1030,7 @@ it("REV09: selecting an imported source retains the canvas and only its authoriz
   expect(
     screen.getByRole("list", { name: "地图记忆列表" }).children,
   ).toHaveLength(0);
-  expect(screen.getByRole("heading", { name: "记忆详情" })).toBeTruthy();
-  expect(screen.getByText("还没有已生成的记忆")).toBeTruthy();
+  expect(sourceReceipt).not.toHaveBeenCalled();
   await userEvent.click(screen.getByRole("button", { name: /全部记忆/ }));
   expect(within(canvas).getAllByRole("button")).toHaveLength(2);
   expect(canvas.dataset.selected ?? "").toBe("");
@@ -1012,247 +1052,83 @@ it("REV09: fallback search matches source names and IDs without bypassing the se
   );
   await userEvent.type(search, "cOdEx");
   expect(screen.getByTestId("canvas").dataset.selected).toBe("source:codex");
-  expect(screen.getByText("还没有已生成的记忆")).toBeTruthy();
+  expect(screen.getByText("查看已读内容")).toBeTruthy();
   await userEvent.clear(search);
   await userEvent.type(search, "Cursor");
   expect(screen.queryByTestId("canvas")).toBeNull();
-  expect(screen.queryByText("正在读取记忆详情…")).toBeNull();
+  expect(screen.queryByText("查看已读内容")).toBeNull();
   await userEvent.clear(search);
   expect(screen.getByTestId("canvas").dataset.selected ?? "").toBe("");
-  expect(screen.queryByText("正在读取记忆详情…")).toBeNull();
-});
-
-it("selecting a source node waits for its settled page, then opens the first memory", async () => {
-  const onQuery = vi.fn();
-  const onSource = vi.fn();
-  const resetPage = vi.fn();
-  const oldPage = {
-    items: memories,
-    total: 2,
-    offset: 0,
-    limit: 20,
-    source_ids_by_memory: { m0: ["codex"], m1: ["codex"] },
-  };
-  const view = render(
-    <Host
-      simplified
-      sources={importedSources}
-      libraryView={{
-        ...pagedView(oldPage),
-        query: "旧查询",
-        settledQuery: "旧查询",
-        onQuery,
-        onSource,
-        resetPage,
-      }}
-    />,
-  );
-  await act(async () => {});
-  await userEvent.click(screen.getByRole("button", { name: "图中选择 Codex" }));
-  expect(onQuery).toHaveBeenCalledWith("");
-  expect(onSource).toHaveBeenCalledWith("codex");
-  expect(resetPage).toHaveBeenCalledOnce();
-
-  view.rerender(
-    <Host
-      simplified
-      sources={importedSources}
-      libraryView={{
-        ...pagedView(oldPage),
-        source: "codex",
-        settledSource: "",
-        loading: true,
-        onQuery,
-        onSource,
-        resetPage,
-      }}
-    />,
-  );
-  expect(
-    screen
-      .getAllByRole("status")
-      .some((node) => node.textContent === "正在读取记忆详情…"),
-  ).toBe(true);
-
-  const settledItems = [memories[1], memories[0]];
-  view.rerender(
-    <Host
-      simplified
-      items={settledItems}
-      sources={importedSources}
-      libraryView={{
-        ...pagedView({
-          ...oldPage,
-          items: settledItems,
-          source_ids_by_memory: { m1: ["codex"], m0: ["codex"] },
-        }),
-        source: "codex",
-        settledSource: "codex",
-        settledQuery: "",
-        onQuery,
-        onSource,
-        resetPage,
-      }}
-    />,
-  );
-  expect(await screen.findByRole("heading", { name: "第二条" })).toBeTruthy();
   expect(screen.queryByText("查看已读内容")).toBeNull();
-  expect(document.querySelector(".source-import-receipt")).toBeNull();
 });
 
-it("does not replace a newer memory choice when a source page settles", async () => {
-  const page = {
-    items: memories,
-    total: 2,
-    offset: 0,
-    limit: 20,
-    source_ids_by_memory: { m0: ["codex"], m1: ["codex"] },
-  };
-  const view = render(
-    <Host simplified sources={importedSources} libraryView={pagedView(page)} />,
+it("REV09: source selection uses the actual permission-checked receipt API", async () => {
+  sourceReceipt.mockResolvedValue(importedReceipt);
+  render(<Host items={[]} sources={importedSources} />);
+  await openSourceReceipt();
+  expect(
+    await screen.findByText(importedReceipt.examples[0].excerpt),
+  ).toBeTruthy();
+  expect(screen.getByText("用户 · 时间未知")).toBeTruthy();
+  expect(screen.getByText("原始消息").nextElementSibling?.textContent).toBe(
+    "5",
   );
-  await act(async () => {});
-  await userEvent.click(screen.getByRole("button", { name: "图中选择 Codex" }));
-  await userEvent.click(
-    screen.getByRole("button", { name: "图中选择 第二条" }),
-  );
-  expect(await screen.findByRole("heading", { name: "第二条" })).toBeTruthy();
-
-  view.rerender(
-    <Host
-      simplified
-      sources={importedSources}
-      libraryView={{
-        ...pagedView(page),
-        source: "codex",
-        settledSource: "codex",
-      }}
-    />,
-  );
-  expect(screen.getByRole("heading", { name: "第二条" })).toBeTruthy();
+  // No raw conversation is read by id on the SDK data plane.
+  expect(screen.queryByRole("button", { name: "查看完整对话" })).toBeNull();
 });
 
-it("closing the compact source inspector cancels its pending auto-open", async () => {
+it.each(["revoked", "removed", "revoked-hidden"])(
+  "REV09: %s source drops fallback, preview and a late receipt without reopening on reauthorization",
+  async (state) => {
+    let finish: (value: Receipt) => void = () => {};
+    sourceReceipt.mockImplementation(
+      () =>
+        new Promise<Receipt>((resolve) => {
+          finish = resolve;
+        }),
+    );
+    const view = render(<Host items={[]} sources={[importedSources[0]]} />);
+    await openSourceReceipt();
+    view.rerender(
+      <Host
+        items={[]}
+        hidden={state === "revoked-hidden"}
+        sources={
+          state === "removed"
+            ? []
+            : [{ ...importedSources[0], authorized: false }]
+        }
+      />,
+    );
+    expect(screen.queryByTestId("canvas")).toBeNull();
+    expect(document.querySelector(".source-import-receipt")).toBeNull();
+    await act(async () => finish(importedReceipt));
+    view.rerender(<Host items={[]} sources={[importedSources[0]]} />);
+    expect(screen.getByTestId("canvas").dataset.selected ?? "").toBe("");
+    expect(screen.queryByText(importedReceipt.examples[0].excerpt)).toBeNull();
+    expect(screen.queryByText("查看已读内容")).toBeNull();
+    expect(sourceReceipt).toHaveBeenCalledTimes(1);
+  },
+);
+
+it("REV09: compact preview close keeps source selection for reopening", async () => {
   vi.stubGlobal("matchMedia", (query: string) => ({
     matches: query.includes("max-width"),
     addEventListener() {},
     removeEventListener() {},
   }));
-  const page = {
-    items: memories,
-    total: 2,
-    offset: 0,
-    limit: 20,
-    source_ids_by_memory: { m0: ["codex"], m1: ["codex"] },
-  };
-  const view = render(
-    <Host simplified sources={importedSources} libraryView={pagedView(page)} />,
-  );
-  await act(async () => {});
-  await userEvent.click(screen.getByRole("button", { name: "图中选择 Codex" }));
+  sourceReceipt.mockResolvedValue(importedReceipt);
+  render(<Host items={[]} sources={importedSources} />);
+  await openSourceReceipt();
+  await screen.findByText(importedReceipt.examples[0].excerpt);
   await userEvent.click(screen.getByRole("button", { name: "关闭记忆详情" }));
-
-  view.rerender(
-    <Host
-      simplified
-      sources={importedSources}
-      libraryView={{
-        ...pagedView(page),
-        source: "codex",
-        settledSource: "codex",
-      }}
-    />,
-  );
-  expect(screen.queryByRole("dialog", { name: "记忆与原文" })).toBeNull();
-  expect(screen.queryByRole("heading", { name: "第一条" })).toBeNull();
-});
-
-it("keeps the source selection and offers retry when its page fails", async () => {
-  const onRetry = vi.fn();
-  const page = {
-    items: memories,
-    total: 2,
-    offset: 0,
-    limit: 20,
-    source_ids_by_memory: { m0: ["codex"], m1: ["codex"] },
-  };
-  const view = render(
-    <Host simplified sources={importedSources} libraryView={pagedView(page)} />,
-  );
-  await act(async () => {});
-  await userEvent.click(screen.getByRole("button", { name: "图中选择 Codex" }));
-  view.rerender(
-    <Host
-      simplified
-      sources={importedSources}
-      libraryView={{
-        ...pagedView(page),
-        source: "codex",
-        settledSource: "codex",
-        failed: true,
-        onRetry,
-      }}
-    />,
-  );
-  expect(
-    screen
-      .getAllByRole("alert")
-      .some((node) => node.textContent === "记忆暂时无法读取"),
-  ).toBe(true);
-  await userEvent.click(screen.getByRole("button", { name: "重试" }));
-  expect(onRetry).toHaveBeenCalledOnce();
-});
-
-it("drops a pending source selection when that source is revoked", async () => {
-  const page = {
-    items: memories,
-    total: 2,
-    offset: 0,
-    limit: 20,
-    source_ids_by_memory: { m0: ["codex"], m1: ["codex"] },
-  };
-  const view = render(
-    <Host
-      simplified
-      sources={[importedSources[0]]}
-      libraryView={pagedView(page)}
-    />,
-  );
-  await act(async () => {});
-  await userEvent.click(screen.getByRole("button", { name: "图中选择 Codex" }));
+  expect(document.querySelector(".source-import-receipt")).toBeNull();
   expect(screen.getByTestId("canvas").dataset.selected).toBe("source:codex");
-
-  view.rerender(
-    <Host
-      simplified
-      sources={[{ ...importedSources[0], authorized: false }]}
-      libraryView={{
-        ...pagedView(page),
-        source: "codex",
-        settledSource: "codex",
-      }}
-    />,
-  );
-  expect(screen.queryByRole("button", { name: "图中选择 Codex" })).toBeNull();
-  expect(screen.getByTestId("canvas").dataset.selected).not.toBe(
-    "source:codex",
-  );
-  expect(screen.queryByText("正在读取记忆详情…")).toBeNull();
-
-  view.rerender(
-    <Host
-      simplified
-      sources={[importedSources[0]]}
-      libraryView={{
-        ...pagedView(page),
-        source: "codex",
-        settledSource: "codex",
-      }}
-    />,
-  );
-  expect(screen.getByTestId("canvas").dataset.selected).not.toBe(
-    "source:codex",
+  await userEvent.click(
+    screen.getByRole("button", { name: "查看选中来源原文" }),
   );
+  expect(screen.getByRole("dialog", { name: "记忆与原文" })).toBeTruthy();
+  expect(screen.getByText("查看已读内容")).toBeTruthy();
 });
 
 it("REV09: first governed memories replace fallback without remounting the graph or breaking memory IDs", async () => {
@@ -1291,4 +1167,5 @@ it.each([
   render(<Host items={[]} sources={sources} />);
   expect(screen.queryByTestId("canvas")).toBeNull();
   expect(document.querySelector(".source-import-receipt")).toBeNull();
+  expect(sourceReceipt).not.toHaveBeenCalled();
 });

memhub/apps/web/src/MemoryMap.tsx

@@ -48,6 +48,7 @@ import {
 import { OptionMenu } from "./OptionMenu";
 import { R6Button } from "./R6Controls";
 import { SelectedMemoryDetail } from "./SelectedMemoryDetail";
+import { SourceImportReceipt } from "./SourceImportReceipt";
 import { sourceNameOr } from "./source-label";
 import { useMediaPreference } from "./use-media-preference";
 import { Answer, NodeDetail, type SavedAnswer } from "./Workbench";
@@ -96,8 +97,6 @@ type Props = {
     loading: boolean;
     failed: boolean;
     stale: boolean;
-    settledSource?: string;
-    settledQuery?: string;
     /** The source id the SDK uses for "no source given" (shown as 未识别来源). */
     unattributedSource?: string;
     onQuery(value: string): void;
@@ -140,7 +139,7 @@ function monthDay(value: string, locale: GuiLocale): string | null {
 
 /** D96: when the cited conversation happened, not when the memory was generated. */
 function sourceStamp(
-  time: { at: string; basis: "conversation" | "import" } | undefined,
+  time: { at: string; basis: "conversation" | "import" | "write" } | undefined,
   fallback: string | null | undefined,
   locale: GuiLocale = "zh-CN",
 ): string {
@@ -148,7 +147,11 @@ function sourceStamp(
   if (time && day)
     return memoryText(
       locale,
-      time.basis === "conversation" ? "对话于 {day}" : "导入于 {day}",
+      time.basis === "conversation"
+        ? "对话于 {day}"
+        : time.basis === "write"
+          ? "写入于 {day}"
+          : "导入于 {day}",
       { day },
     );
   return dayStamp(fallback, locale);
@@ -214,9 +217,6 @@ export function MemoryMap(props: Props) {
   }, [submittedQuery]);
   const [selectedId, setSelectedId] = useState<string | null>(null);
   const [groupNode, setGroupNode] = useState<MemoryGraphNode | null>(null);
-  const [pendingSourceSelection, setPendingSourceSelection] = useState<
-    string | null
-  >(null);
   const [question, setQuestion] = useState("");
   const [inspectorOpen, setInspectorOpen] = useState(false);
   const [filterNotice, setFilterNotice] = useState("");
@@ -367,7 +367,6 @@ export function MemoryMap(props: Props) {
     // Source revocation also clears a suspended preview, without closing shared memory detail.
     if (groupNode && !visibleGroupNode) {
       setGroupNode(null);
-      setPendingSourceSelection(null);
       setInspectorOpen(false);
     }
   }, [groupNode, visibleGroupNode]);
@@ -394,7 +393,6 @@ export function MemoryMap(props: Props) {
   const pick = useCallback(
     (memoryId: string, scroll = true) => {
       if (!active.some((memory) => memory.memory_id === memoryId)) return;
-      setPendingSourceSelection(null);
       scrollSelection.current = scroll;
       if (!filtered.some((memory) => memory.memory_id === memoryId)) {
         setGroupKey("");
@@ -408,32 +406,6 @@ export function MemoryMap(props: Props) {
     },
     [active, filtered, onOpenMemory],
   );
-  useEffect(() => {
-    if (
-      !library ||
-      !pendingSourceSelection ||
-      overlaysSuspended ||
-      library.loading ||
-      library.failed ||
-      !selectedSource ||
-      selectedSource.source_id !== pendingSourceSelection ||
-      library.source !== pendingSourceSelection ||
-      (library.settledSource ?? library.source) !== pendingSourceSelection ||
-      (library.settledQuery ?? library.query).trim() ||
-      library.page?.offset !== 0
-    )
-      return;
-    setPendingSourceSelection(null);
-    const first = active[0];
-    if (first) pick(first.memory_id, false);
-  }, [
-    active,
-    library,
-    overlaysSuspended,
-    pendingSourceSelection,
-    pick,
-    selectedSource,
-  ]);
   useEffect(() => {
     if (!props.simplified || openedDefault.current || overlaysSuspended) return;
     if (library?.loading && filtered.length === 0) return;
@@ -484,7 +456,6 @@ export function MemoryMap(props: Props) {
   const clear = useCallback(() => {
     setSelectedId(null);
     setGroupNode(null);
-    setPendingSourceSelection(null);
     setInspectorOpen(false);
     onCloseDetail();
   }, [onCloseDetail]);
@@ -516,7 +487,6 @@ export function MemoryMap(props: Props) {
       clear();
       return;
     }
-    setPendingSourceSelection(null);
     setInspectorOpen(false);
   }
   function chooseGroup(key: string) {
@@ -543,17 +513,8 @@ export function MemoryMap(props: Props) {
       setAxis("source");
       setGroupKey(`source:${node.source_id}`);
       if (library) {
-        setPendingSourceSelection(node.source_id);
-        library.onQuery("");
         library.onSource(node.source_id);
         library.resetPage();
-      } else {
-        const first = sourceGroups
-          .find((entry) => entry.key === `source:${node.source_id}`)
-          ?.memoryIds.find((memoryId) =>
-            active.some((memory) => memory.memory_id === memoryId),
-          );
-        if (first) pick(first, false);
       }
     }
     if (node.node_type === "topic") {
@@ -1030,13 +991,11 @@ export function MemoryMap(props: Props) {
             <button
               type="button"
               className="quiet map-tool"
-              aria-label={text("记忆详情")}
+              aria-label={text(
+                selectedSource ? "查看选中来源原文" : "查看选中记忆原文",
+              )}
               title={text("查看原文")}
-              onClick={() => {
-                setInspectorOpen(true);
-                if (selectedSource && library)
-                  setPendingSourceSelection(selectedSource.source_id);
-              }}
+              onClick={() => setInspectorOpen(true)}
             >
               <FileText size={17} />
             </button>
@@ -1171,7 +1130,7 @@ export function MemoryMap(props: Props) {
             {inspectorDetail
               ? text("记忆详情")
               : selectedSource
-                ? text("记忆详情")
+                ? text("来源原文")
                 : visibleGroupNode
                   ? text("关联节点")
                   : text("记忆详情")}
@@ -1190,33 +1149,13 @@ export function MemoryMap(props: Props) {
         </header>
         <div className="map-inspector-body" ref={inspectorBody}>
           {selectedSource ? (
-            <div className="map-inspector-empty map-inspector-loading">
-              {library?.failed &&
-              library.source === selectedSource.source_id ? (
-                <>
-                  <p role="alert">{text("记忆暂时无法读取")}</p>
-                  <button
-                    type="button"
-                    className="secondary"
-                    onClick={library.onRetry}
-                  >
-                    {text("重试")}
-                  </button>
-                </>
-              ) : pendingSourceSelection || library?.loading ? (
-                <>
-                  <div className="map-detail-skeleton" aria-hidden="true">
-                    <i />
-                    <i />
-                    <i />
-                    <i />
-                  </div>
-                  <p role="status">{text("正在读取记忆详情…")}</p>
-                </>
-              ) : (
-                <p>{text("还没有已生成的记忆")}</p>
-              )}
-            </div>
+            inspectorOpen &&
+            !overlaysSuspended && (
+              <SourceImportReceipt
+                key={selectedSource.source_id}
+                source={selectedSource}
+              />
+            )
           ) : props.simplified && inspectorDetail ? (
             <div
               aria-busy={

memhub/apps/web/src/MemorySpace.tsx

@@ -1027,8 +1027,6 @@ export function MemorySpace({
                 loading: sdkLibrary.loading,
                 failed: sdkLibrary.failed,
                 stale: false,
-                settledSource: sdkLibrary.settledSource,
-                settledQuery: sdkLibrary.settledQuery,
                 unattributedSource: UNATTRIBUTED_SOURCE_ID,
                 onQuery: setSdkLibraryQuery,
                 onSource: setSdkLibrarySource,

memhub/apps/web/src/SelectedMemoryDetail.test.tsx

@@ -176,3 +176,41 @@ it("stamps today's source and conversation time without an evidence page", () =>
   expect(screen.getByText(/对话时间 今天 /)).toBeTruthy();
   expect(screen.queryByRole("button", { name: "查看原文" })).toBeNull();
 });
+it("shows an experience's conversation time when the SDK stored one", () => {
+  const today = new Date().toISOString();
+  render(
+    <SelectedMemoryDetail
+      detail={{
+        ...detail,
+        evidence: [],
+        sdk_status: "active",
+        source_id: "codebuddy",
+        sdk_memory_at: today,
+        sdk_created_at: today,
+        sdk_ref: { scene: "coding", kind: "experience", variant: "coding" },
+      }}
+      sources={[]}
+    />,
+  );
+  expect(screen.getByText(/对话时间 今天 /)).toBeTruthy();
+  expect(screen.queryByText(/时间未知/)).toBeNull();
+});
+it("labels an experience without a conversation time by its write time", () => {
+  render(
+    <SelectedMemoryDetail
+      detail={{
+        ...detail,
+        evidence: [],
+        sdk_status: "active",
+        source_id: "codebuddy",
+        sdk_memory_at: null,
+        sdk_created_at: new Date().toISOString(),
+        sdk_ref: { scene: "working", kind: "experience", variant: "working" },
+      }}
+      sources={[]}
+    />,
+  );
+  expect(screen.getByText(/来源 codebuddy · 写入时间 今天 /)).toBeTruthy();
+  expect(screen.queryByText(/对话时间/)).toBeNull();
+  expect(screen.queryByText(/时间未知/)).toBeNull();
+});

memhub/apps/web/src/SelectedMemoryDetail.tsx

@@ -19,7 +19,10 @@ export function SelectedMemoryDetail({
   detail: MemoryDetail;
   sources: SourceResponse[];
   /** D99: when the cited conversation happened, in the list's own terms. */
-  conversationAt?: { at: string; basis: "conversation" | "import" } | null;
+  conversationAt?: {
+    at: string;
+    basis: "conversation" | "import" | "write";
+  } | null;
 }) {
   const { locale, t } = useGuiLanguage();
   const memory = detail.memory;
@@ -42,6 +45,17 @@ export function SelectedMemoryDetail({
           ? t("selectedMemory.status.superseded")
           : t("selectedMemory.status.unknown");
   const sourceId = detail.source_id ?? evidence?.source_id;
+  const created = clockStamp(
+    detail.sdk_created_at ?? memory.updated_at,
+    locale,
+  );
+  // An SDK experience or fact stored before hy-memory 2.0.7 has no
+  // conversation time. It shows when it was written, named as such, instead
+  // of "时间未知".
+  const writtenOnly =
+    detail.sdk_ref !== undefined &&
+    detail.sdk_ref.kind !== "chat" &&
+    !detail.sdk_memory_at;
   const source =
     detail.sdk_status && sourceId === UNATTRIBUTED_SOURCE_ID
       ? t("selectedMemory.sourceUnattributed")
@@ -77,25 +91,28 @@ export function SelectedMemoryDetail({
         <p className="selected-memory-source">
           {t("selectedMemory.sourceLine", {
             source,
-            time: clockStamp(
-              detail.sdk_memory_at ?? evidence?.created_at,
-              locale,
-            ),
+            time: writtenOnly
+              ? t("selectedMemory.writeTime", { created })
+              : clockStamp(
+                  detail.sdk_memory_at ?? evidence?.created_at,
+                  locale,
+                ),
           })}
         </p>
       ) : null}
-      <p className="selected-memory-times">
-        {t("selectedMemory.timestamps", {
-          conversation: clockStamp(
-            conversationAt?.at ?? detail.sdk_memory_at ?? evidence?.created_at,
-            locale,
-          ),
-          created: clockStamp(
-            detail.sdk_created_at ?? memory.updated_at,
-            locale,
-          ),
-        })}
-      </p>
+      {writtenOnly ? null : (
+        <p className="selected-memory-times">
+          {t("selectedMemory.timestamps", {
+            conversation: clockStamp(
+              conversationAt?.at ??
+                detail.sdk_memory_at ??
+                evidence?.created_at,
+              locale,
+            ),
+            created,
+          })}
+        </p>
+      )}
     </article>
   );
 }

memhub/apps/web/src/sdk-memory-map.test.ts

@@ -119,8 +119,12 @@ it("carries each memory's scene and namespace, and edits an experience's solutio
   });
   expect(page.window_id).toBe("w1");
   expect(page.window_reset).toBe(true);
-  // An experience has no conversation time to show as "imported".
-  expect(page.source_time_by_memory?.e).toBeUndefined();
+  // Stored without a conversation time: it shows when it was written, not
+  // an "import".
+  expect(page.source_time_by_memory?.e).toEqual({
+    at: new Date((NOW - 86_400) * 1_000).toISOString(),
+    basis: "write",
+  });
   expect(page.items[1]).toMatchObject({
     kind: "working",
     updated_at: new Date((NOW - 3_600) * 1_000).toISOString(),
@@ -140,3 +144,29 @@ it("carries each memory's scene and namespace, and edits an experience's solutio
   expect(sdkEditableText(experience)).toBe("Pin seed");
   expect(sdkEditableText(record({}))).toBe("memory");
 });
+
+it("shows an experience's conversation time when the SDK stored one", () => {
+  const at = NOW - 2 * 86_400;
+  const experience = record({
+    memory_id: "e",
+    layer: "experience",
+    scene: "coding",
+    kind: "experience",
+    variant: "coding",
+    memory_at: at,
+    created_at: NOW - 3_600,
+  });
+  const page = sdkLibraryPage({
+    memories: [experience],
+    total: 1,
+    limit: 20,
+    offset: 0,
+  });
+  expect(page.source_time_by_memory?.e).toEqual({
+    at: new Date(at * 1_000).toISOString(),
+    basis: "conversation",
+  });
+  expect(sdkDetail(experience).sdk_memory_at).toBe(
+    new Date(at * 1_000).toISOString(),
+  );
+});

memhub/apps/web/src/sdk-memory-map.ts

@@ -154,22 +154,24 @@ export function sdkDetail(record: SdkMemoryRecord): MemoryDetail {
 export function sdkLibraryPage(page: SdkMemoryPage): MemoryLibraryPage {
   const sourceTime: Record<
     string,
-    { at: string; basis: "conversation" | "import" }
+    { at: string; basis: "conversation" | "import" | "write" }
   > = {};
   const sourceIds: Record<string, string[]> = {};
   const refs: Record<string, SdkMemoryRef> = {};
   for (const record of page.memories) {
     sourceIds[record.memory_id] = [sourceOf(record)];
     refs[record.memory_id] = sdkMemoryRef(record);
-    // An experience or fact has no conversation time; the list shows when it
-    // was last updated instead of calling its creation an import.
-    if (refs[record.memory_id].kind !== "chat") continue;
+    // An experience or fact stored before hy-memory 2.0.7 has no
+    // conversation time. It shows when it was written, labelled as such,
+    // rather than calling its creation an import.
+    const chat = refs[record.memory_id].kind === "chat";
     const conversation = plausible(record.memory_at);
-    const at = conversation ?? plausible(record.gmt_created);
+    const at =
+      conversation ?? plausible(chat ? record.gmt_created : record.created_at);
     if (at === null) continue;
     sourceTime[record.memory_id] = {
       at: new Date(at * 1_000).toISOString(),
-      basis: conversation !== null ? "conversation" : "import",
+      basis: conversation !== null ? "conversation" : chat ? "import" : "write",
     };
   }
   return {

memhub/docs/ARCHITECTURE.md

@@ -282,7 +282,7 @@ Support is declared per immutable GitHub Release manifest:
 - Linux x64/arm64 Runtime on native GHA runners.
 - macOS arm64/x64 App/Runtime: Developer ID, notarization, native acceptance.
 - Windows is not supported.
-- `hy-memory==2.0.6` is the current stable SDK dependency; the release
+- `hy-memory==2.0.7` is the current stable SDK dependency; the release
   lock and [`../MEMORY.md`](../MEMORY.md) are authoritative when the pin changes.
 
 See [`INSTALLATION.md`](INSTALLATION.md).

memhub/package.json

@@ -2,7 +2,7 @@
   "name": "one-memory",
   "version": "1.0.5",
   "release": {
-    "build_number": 33,
+    "build_number": 34,
     "macos_min_version": "13.0",
     "app_update": "manual",
     "runtime_manifest_schema": 1,

memhub/packages/contracts/src/index.ts

@@ -468,10 +468,12 @@ export interface MemoryLibraryPage {
   limit: number;
   /** Active evidence sources for each returned memory, from the same authorized page snapshot. */
   source_ids_by_memory?: Record<string, string[]>;
-  /** When each returned memory's cited conversation happened (D96). `import` when only the import time is known. */
+  /** When each returned memory's cited conversation happened (D96). `import`
+   * when only the import time is known; `write` for an SDK experience or fact
+   * stored without a conversation time, which shows when it was written. */
   source_time_by_memory?: Record<
     string,
-    { at: string; basis: "conversation" | "import" }
+    { at: string; basis: "conversation" | "import" | "write" }
   >;
   /** True when the read budget ran out mid-page (typically during a history
    * import): a partial snapshot, not an authoritative view. Show "importing"

memhub/packages/i18n/src/gui-i18n-current.ts

@@ -108,6 +108,7 @@ export const currentChineseMessages = {
   "selectedMemory.version": "第 {revision} 版",
   "selectedMemory.sourceLine": "来源 {source} · {time}",
   "selectedMemory.timestamps": "对话时间 {conversation} · 沉淀时间 {created}",
+  "selectedMemory.writeTime": "写入时间 {created}",
   "selectedMemory.edit": "编辑",
   "selectedMemory.evidence": "原始依据",
   "selectedMemory.evidenceLine": "{author} · 原对话 {time}：",
@@ -258,6 +259,7 @@ export const currentEnglishMessages: Record<
   "selectedMemory.sourceLine": "Source {source} · {time}",
   "selectedMemory.timestamps":
     "Conversation time {conversation} · Created {created}",
+  "selectedMemory.writeTime": "Written {created}",
   "selectedMemory.edit": "Edit",
   "selectedMemory.evidence": "Original evidence",
   "selectedMemory.evidenceLine": "{author} · Original conversation {time}:",
@@ -418,6 +420,7 @@ export const currentSpanishMessages: Record<
   "selectedMemory.sourceLine": "Origen {source} · {time}",
   "selectedMemory.timestamps":
     "Conversación {conversation} · Guardada {created}",
+  "selectedMemory.writeTime": "Escrita {created}",
   "selectedMemory.edit": "Editar",
   "selectedMemory.evidence": "Evidencia original",
   "selectedMemory.evidenceLine": "{author} · Conversación original {time}:",

memhub/packages/i18n/src/gui-i18n-english.ts

@@ -1774,6 +1774,7 @@ const baseEnglishMessages = {
     " · Import count is still updating; refresh to check",
   "memory:对话于 {day}": "Conversation on {day}",
   "memory:导入于 {day}": "Imported on {day}",
+  "memory:写入于 {day}": "Written on {day}",
   "memory:已开始处理所选对话": "Processing selected conversations",
   "memory:处理请求已受理": "Processing request received",
   "memory:模型连接已通过。首批记忆生成后，会逐步出现在记忆列表里。":

memhub/packages/i18n/src/gui-i18n-memory.ts

@@ -336,6 +336,7 @@ export const memoryChineseMessages = {
   "memory: · 导入数量仍在更新，可刷新核对": " · 导入数量仍在更新，可刷新核对",
   "memory:对话于 {day}": "对话于 {day}",
   "memory:导入于 {day}": "导入于 {day}",
+  "memory:写入于 {day}": "写入于 {day}",
   "memory:已开始处理所选对话": "已开始处理所选对话",
   "memory:处理请求已受理": "处理请求已受理",
   "memory:模型连接已通过。首批记忆生成后，会逐步出现在记忆列表里。":
@@ -750,6 +751,7 @@ export const memorySpanishMessages: Record<
     " · La importación continúa; actualiza para verificar",
   "memory:对话于 {day}": "Conversación del {day}",
   "memory:导入于 {day}": "Importada el {day}",
+  "memory:写入于 {day}": "Escrita el {day}",
   "memory:已开始处理所选对话": "Procesamiento de conversaciones iniciado",
   "memory:处理请求已受理": "Solicitud de procesamiento aceptada",
   "memory:模型连接已通过。首批记忆生成后，会逐步出现在记忆列表里。":

memhub/scripts/generate_sbom.py

@@ -36,7 +36,7 @@ MEMMY_LICENSE = (
 MEMMY_PROVENANCE = MEMMY_LICENSE.with_name("PROVENANCE.md")
 MEMMY_PIN = "25acd5f29fc7df73b943713abe61f1b2f9839887"
 HY_MEMORY_NAME = "hy-memory"
-HY_MEMORY_VERSION = "2.0.6"
+HY_MEMORY_VERSION = "2.0.7"
 
 
 class SbomError(RuntimeError):

memhub/scripts/install-docs.test.mjs

@@ -12,7 +12,7 @@ test("installation docs disclose publication and lifecycle boundaries", async ()
     "utf8",
   );
 
-  assert.match(readme, /`hy-memory==2\.0\.6`/);
+  assert.match(readme, /`hy-memory==2\.0\.7`/);
   assert.match(readme, /`v1\.0\.5` 的发行目标是 Linux x64\/arm64 Runtime/);
   assert.match(readme, /Linux 制品由 GitHub Actions/);
   assert.match(readme, /macOS.*Developer ID 签名、公证/s);

memhub/scripts/test_generate_sbom.py

@@ -13,7 +13,7 @@ spec.loader.exec_module(module)
 
 
 def test_hy_memory_notice_comes_from_the_installed_dist_info(tmp_path: Path) -> None:
-    dist_info = tmp_path / "hy_memory-2.0.6.dist-info"
+    dist_info = tmp_path / "hy_memory-2.0.7.dist-info"
     licenses = dist_info / "licenses"
     licenses.mkdir(parents=True)
     (dist_info / "METADATA").write_text(
@@ -21,7 +21,7 @@ def test_hy_memory_notice_comes_from_the_installed_dist_info(tmp_path: Path) ->
             (
                 "Metadata-Version: 2.4",
                 "Name: hy-memory",
-                "Version: 2.0.6",
+                "Version: 2.0.7",
                 "License-Expression: Apache-2.0",
                 "",
             )
@@ -38,7 +38,7 @@ def test_hy_memory_notice_comes_from_the_installed_dist_info(tmp_path: Path) ->
     notice = module.hy_memory_notice(dist_info)
 
     assert notice["name"] == "hy-memory"
-    assert notice["version"] == "2.0.6"
+    assert notice["version"] == "2.0.7"
     assert notice["license"] == "Apache-2.0"
     assert notice["copyright"] == "Copyright (C) 2026 Tencent. All rights reserved."
     assert "Licensed under the Apache License" in notice["text"]

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "hy-memory"
-version = "2.0.6"
+version = "2.0.7"
 description = "HY Memory - Industrial-grade dual-system cognitive memory framework"
 readme = "README.md"
 requires-python = ">=3.9"

tests/coding/test_memory_at.py

@@ -0,0 +1,229 @@
+# -*- coding: utf-8 -*-
+"""经验与事实记下对话时间 memory_at，并以秒级 epoch 对外返回（与 chat 一致）。
+
+之前生产力链路丢了 add() 传进来的 memory_at，coding_memory_meta / working_fact
+也没有这一列，MemHub 里所有经验都显示"时间未知"。
+"""
+
+import sqlite3
+import time
+from datetime import datetime, timedelta, timezone
+from types import SimpleNamespace
+
+import pytest
+
+from hy_memory.client import HyMemoryClient
+from hy_memory.coding.extractor import CodingMemoryExtractor
+from hy_memory.coding.reconciler import CodingMemoryReconciler
+from hy_memory.coding.store import CodingMemoryStore, _CREATE_TABLE_SQL, _CREATE_FACT_TABLE_SQL
+from hy_memory.coding.types import CodingMemory, WorkingFact
+from hy_memory.coding.writer import CodingWriter
+
+from tests.coding._helpers import MockLLMProvider
+from tests.coding.test_list_and_stats_by_scene import _client, _unwrapped
+from tests.coding.test_write_scene_routing import _messages
+from tests.coding.test_writer_e2e import _coding_messages, _extract_resp, _reconcile_resp
+
+T1 = datetime(2026, 10, 1, 9, 30, tzinfo=timezone.utc)
+T2 = T1 + timedelta(days=3)
+
+
+def _epoch(value: datetime) -> int:
+    return int(value.timestamp())
+
+
+def _writer(store, embed, llm):
+    return CodingWriter(
+        store=store,
+        extractor=CodingMemoryExtractor(llm),
+        reconciler=CodingMemoryReconciler(store, embed, llm),
+        llm_provider=llm, embed_service=embed,
+    )
+
+
+@pytest.mark.asyncio
+class TestStore:
+    async def test_round_trip_as_epoch(self, coding_store):
+        await coding_store.insert(CodingMemory(
+            experience_id="e1", user_id="u", task="T", solution="S", memory_at=T1,
+        ))
+        await coding_store.insert_fact(WorkingFact(
+            fact_id="f1", user_id="u", statement="x", memory_at=T1,
+        ))
+        exp = await coding_store.get_by_id("e1", user_id="u")
+        fact = await coding_store.get_fact("f1", user_id="u")
+        assert _epoch(exp.memory_at) == _epoch(T1)
+        assert exp.to_dict()["memory_at"] == _epoch(T1)
+        assert fact.to_dict()["memory_at"] == _epoch(T1)
+
+    async def test_missing_time_stays_unknown(self, coding_store):
+        await coding_store.insert(CodingMemory(
+            experience_id="e1", user_id="u", task="T", solution="S",
+        ))
+        exp = await coding_store.get_by_id("e1", user_id="u")
+        assert exp.memory_at is None and exp.to_dict()["memory_at"] is None
+
+    @pytest.mark.parametrize("old, new", [(T1, T2), (T2, T1), (T2, None)])
+    async def test_update_keeps_the_later_time(self, coding_store, old, new):
+        await coding_store.insert(CodingMemory(
+            experience_id="e1", user_id="u", task="T", solution="S",
+            session_id="s", memory_at=old,
+        ))
+        await coding_store.update(CodingMemory(
+            experience_id="e1", user_id="u", task="T", solution="S2",
+            session_id="s", memory_at=new,
+        ))
+        exp = await coding_store.get_by_id("e1", user_id="u")
+        assert exp.solution == "S2"
+        assert _epoch(exp.memory_at) == _epoch(T2)
+
+    async def test_edit_keeps_the_time(self, coding_store):
+        await coding_store.insert(CodingMemory(
+            experience_id="e1", user_id="u", task="T", solution="S", memory_at=T1,
+        ))
+        await coding_store.edit_experience("e1", user_id="u", solution="S2")
+        exp = await coding_store.get_by_id("e1", user_id="u")
+        assert _epoch(exp.memory_at) == _epoch(T1)
+
+
+@pytest.mark.asyncio
+@pytest.mark.parametrize("variant", ["working", "coding"])
+async def test_existing_database_gains_the_column_on_open(coding_config, mock_embed, variant):
+    store = CodingMemoryStore(coding_config, embed_service=mock_embed, variant=variant)
+    # 先按老 schema（没有 memory_at）建库并放一行
+    conn = sqlite3.connect(store._db_path)
+    conn.executescript(_CREATE_TABLE_SQL.replace("    memory_at        INTEGER,\n", ""))
+    conn.executescript(_CREATE_FACT_TABLE_SQL.replace("    memory_at              INTEGER,\n", ""))
+    conn.execute(
+        "INSERT INTO coding_memory_meta (experience_id, user_id, task, solution, "
+        "created_at, updated_at) VALUES ('old', 'u', 'T', 'S', '2026-01-01T00:00:00', "
+        "'2026-01-01T00:00:00')"
+    )
+    conn.commit()
+    conn.close()
+
+    await store.initialize()
+    try:
+        old = await store.get_by_id("old", user_id="u")
+        assert old is not None and old.memory_at is None
+        await store.insert_fact(WorkingFact(
+            fact_id="f1", user_id="u", statement="x", memory_at=T1,
+        ))
+        assert _epoch((await store.get_fact("f1")).memory_at) == _epoch(T1)
+    finally:
+        await store.close()
+    # 再开一次不出错（ADD COLUMN 是幂等的）
+    again = CodingMemoryStore(coding_config, embed_service=mock_embed, variant=variant)
+    await again.initialize()
+    await again.close()
+
+
+@pytest.mark.asyncio
+class TestWriter:
+    def _llm(self):
+        return MockLLMProvider([
+            _extract_resp(
+                [{"task": "打包发布", "solution": "S", "confidence": 0.9}],
+                [{"statement": "发布脚本在 scripts/publish_package.sh"}],
+            ),
+            _reconcile_resp([{"draft_idx": 0, "action": "ADD"}]),
+        ])
+
+    async def test_conversation_time_reaches_both_layers(self, coding_store, mock_embed):
+        resp = await _writer(coding_store, mock_embed, self._llm()).write(
+            _coding_messages(), user_id="u", session_id="s", memory_at=T1,
+        )
+        exp = await coding_store.get_by_id(resp["experience_ids"][0], user_id="u")
+        fact = await coding_store.get_fact(resp["fact_ids"][0], user_id="u")
+        assert _epoch(exp.memory_at) == _epoch(T1)
+        assert _epoch(fact.memory_at) == _epoch(T1)
+
+    async def test_defaults_to_request_time_like_chat(self, coding_store, mock_embed):
+        before = int(time.time())
+        resp = await _writer(coding_store, mock_embed, self._llm()).write(
+            _coding_messages(), user_id="u", session_id="s",
+        )
+        exp = await coding_store.get_by_id(resp["experience_ids"][0], user_id="u")
+        fact = await coding_store.get_fact(resp["fact_ids"][0], user_id="u")
+        for stamp in (_epoch(exp.memory_at), _epoch(fact.memory_at)):
+            assert before <= stamp <= int(time.time()) + 1
+
+
+@pytest.mark.asyncio
+async def test_add_passes_the_time_to_the_productivity_writer(monkeypatch):
+    seen = {}
+
+    async def _judge(*args, **kwargs):
+        return "working"
+
+    class _Writer:
+        async def write(self, *args, **kwargs):
+            seen.update(kwargs)
+            return {"success": True, "experience_ids": [], "fact_ids": []}
+
+    async def _get_writer(*, variant):
+        return _Writer()
+
+    monkeypatch.setattr("hy_memory.client.classify_messages_scene", _judge)
+    ns = SimpleNamespace(
+        _config=SimpleNamespace(coding=SimpleNamespace(enable=True)),
+        _coding_llm_provider=object(),
+        _cache=None,
+        _get_coding_writer=_get_writer,
+        _normalize_scene=HyMemoryClient._normalize_scene,
+        _scene_variant=HyMemoryClient._scene_variant,
+        _parse_input=HyMemoryClient._parse_input,
+    )
+    await HyMemoryClient._async_add_impl(
+        ns, _messages(), user_id="u1", agent_id="a1", memory_at=T1,
+    )
+    assert seen["memory_at"] == T1
+
+
+@pytest.mark.asyncio
+async def test_list_get_and_search_return_epoch_seconds(coding_config, mock_embed):
+    coding = CodingMemoryStore(coding_config, embed_service=mock_embed, variant="coding")
+    await coding.initialize()
+    try:
+        await coding.insert(CodingMemory(
+            experience_id="e1", user_id="u", task="打包发布", solution="S", memory_at=T1,
+        ))
+        await coding.insert_fact(WorkingFact(
+            fact_id="f1", user_id="u", statement="打包发布", memory_at=T2,
+            derived_experience_ids=["e1"],
+        ))
+        client = _client([], {"coding": coding})
+        list_memories = _unwrapped("async_list_memories")
+
+        page = await list_memories(client, user_id="u", scene="coding")
+        assert page["experiences"][0]["memory_at"] == _epoch(T1)
+
+        merged = await list_memories(client, user_id="u", scene="all")
+        assert merged["memories"][0]["memory_at"] == _epoch(T1)
+
+        exp = await coding.get_by_id("e1", user_id="u")
+        got = HyMemoryClient._format_productivity_get(
+            exp, kind="experience", variant="coding", request_id="r", elapsed_ms=0,
+        )
+        assert got["memory_at"] == _epoch(T1)
+
+        client._embed_service = mock_embed
+        client._coding_store = coding
+
+        async def _ready(variant="working"):
+            return None
+
+        client._get_coding_writer = _ready
+        client._cache = None
+        resp = await HyMemoryClient._search_coding(
+            client, target_query="打包发布", user_ids=["u"], workspace_id=None,
+            branch=None, limit=5, working_fact_min_score=0.0,
+            working_experience_min_score=0.0, request_id="r",
+            t0=time.perf_counter(), variant="coding",
+        )
+        assert resp["facts"][0]["memory_at"] == _epoch(T2)
+        assert resp["experiences"][0]["memory_at"] == _epoch(T1)
+        unified = HyMemoryClient._search_lane_items("coding", resp)
+        assert {item["memory_at"] for item in unified} == {_epoch(T1), _epoch(T2)}
+    finally:
+        await coding.close()