diff --git a/clematis/memory/index.py b/clematis/memory/index.py
index e780e04..9cc3cc5 100644
--- a/clematis/memory/index.py
+++ b/clematis/memory/index.py
@@ -12,6 +12,11 @@ def __init__(self) -> None:
         self._eps: List[Dict[str, Any]] = []
         self._ver: int = 0
 
+    def clear(self) -> None:
+        """Remove all episodes and reset version counter."""
+        self._eps.clear()
+        self._ver = 0
+
     def add(self, ep: Dict[str, Any]) -> None:
         self._eps.append(ep)
         self._ver += 1
diff --git a/clematis/memory/lance_index.py b/clematis/memory/lance_index.py
index cfe01c6..4608944 100644
--- a/clematis/memory/lance_index.py
+++ b/clematis/memory/lance_index.py
@@ -205,6 +205,44 @@ def add(self, ep: Dict[str, Any]) -> None:
         # Bump version counter
         self._bump_version()
 
+    def clear(self) -> None:
+        """Drop all stored episodes and reset the version counter."""
+        # Drop the episodes table if it exists (ignore failures).
+        try:
+            drop = getattr(self._db, "drop_table", None)
+            if callable(drop) and self._episodes is not None:
+                drop(self._table_name)
+        except Exception:
+            # As a fallback, delete every row individually.
+            try:
+                rows = [row.get("id") for row in self._read_all_rows()]
+                for eid in rows:
+                    if eid is None:
+                        continue
+                    try:
+                        self._episodes.delete(f"id == '{eid}'")  # type: ignore[union-attr]
+                    except Exception:
+                        pass
+            except Exception:
+                pass
+        finally:
+            self._episodes = None
+
+        # Reset meta table back to the initial counter state.
+        try:
+            drop = getattr(self._db, "drop_table", None)
+            if callable(drop):
+                drop(self._meta_name)
+        except Exception:
+            try:
+                if self._meta is not None:
+                    self._meta.delete("key == 'counter'")  # type: ignore[union-attr]
+            except Exception:
+                pass
+
+        self._meta = self._open_or_create_meta()
+        self._version_cache = 0
+
     def search_tiered(
         self,
         owner: Optional[str],
diff --git a/healthcheck.md b/healthcheck.md
index 8251df6..7dc704e 100644
--- a/healthcheck.md
+++ b/healthcheck.md
@@ -17,6 +17,7 @@
 - Identity marker suite verified (`pytest -q -m identity`), and full test suite passes locally (`pytest -q`).
 - Built wheels into `dist_local/` and captured deterministic hashes via `shasum -a 256 dist_local/* | sort` as part of the packaging parity check.
 - Removed `ValueError` inheritance from typed errors, updated validators/scripts/tests to catch `ConfigError`/`SnapshotError`, and refreshed docs to match the cleaned taxonomy.
+- Chat CLI `[wipe]` now purges the configured LanceDB store (when enabled) and reinitialises the memory index so subsequent `[seed]` runs repopulate the persistent backend with fresh embeddings.
 
 ## Recommended Next Actions
 - Re-run the identity and packaging matrices once the version/doc alignment is settled, ensuring the refreshed defaults keep byte-identical outputs.
diff --git a/scripts/chat.py b/scripts/chat.py
index be459b0..7a560cf 100644
--- a/scripts/chat.py
+++ b/scripts/chat.py
@@ -592,9 +592,17 @@ def _seed_memories(
     state["_chat_seeded_memories"] = True
 
 
-def _wipe_memories(state: Dict[str, Any]) -> None:
-    state["mem_index"] = InMemoryIndex()
-    state["mem_backend"] = "inmemory"
+def _wipe_memories(state: Dict[str, Any], cfg_t2: Dict[str, Any]) -> None:
+    idx = state.get("mem_index")
+    if idx is not None:
+        clear = getattr(idx, "clear", None)
+        if callable(clear):
+            try:
+                clear()
+            except Exception as exc:  # pragma: no cover - defensive logging path
+                print(f"[chat] WARNING: failed to clear memory index: {exc}", file=sys.stderr)
+    state.pop("mem_index", None)
+    state.pop("mem_backend", None)
     state.pop("mem_backend_fallback_reason", None)
     state["_chat_seeded_memories"] = False
     state["_chat_memory_ids"] = []
@@ -613,6 +621,13 @@ def _wipe_memories(state: Dict[str, Any]) -> None:
     state["active_graphs"] = [DEFAULT_GRAPH_ID]
     state["_chat_seeded_graph"] = False
     _ensure_store(state)
+    # Recreate the configured index so subsequent seeds write to the persistent store.
+    try:
+        _ensure_index(state, cfg_t2)
+    except Exception as exc:  # pragma: no cover - defensive logging
+        print(f"[chat] WARNING: failed to reinitialise memory index after wipe: {exc}", file=sys.stderr)
+        state["mem_index"] = InMemoryIndex()
+        state["mem_backend"] = "inmemory"
 
 
 def _apply_llm_mode(cfg: Dict[str, Any], args: argparse.Namespace) -> None:
@@ -785,7 +800,7 @@ def main(argv: Optional[list[str]] = None) -> int:
             print("[reset] state reloaded.")
             continue
         if lowered in {"[wipe]", "/wipe"}:
-            _wipe_memories(state)
+            _wipe_memories(state, cfg_t2)
             print("[wipe] memories cleared.")
             if not args.no_seed:
                 print("  (use [seed] to restore demo memories.)")