diff --git a/README.md b/README.md
index 82ea6db..ec16e87 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 
 MCP server for [Family Wall](https://www.familywall.com) -- read and manage your family's circles, lists, and tasks directly from Claude.
 
-## Features (v0.4.5)
+## Features (v0.4.6)
 
 ### Read
 
diff --git a/SPEC.md b/SPEC.md
index c7ea6b8..cfb01ac 100644
--- a/SPEC.md
+++ b/SPEC.md
@@ -324,8 +324,25 @@ a00.r.r                      → vollständiges Wall-Message-Objekt
   .rights.canDelete          → "true"/"false"
 ```
 
-**Like-Zustand bestimmen:** `moodMap[accountId]` enthält `["STAR"]` wenn der
-jeweilige Account geliked hat. Leere Map oder fehlender Key = kein Like.
+**Like-Zustand bestimmen (zwei Indikatoren, beide auswerten):**
+
+| Feld | Typ | Bedeutung |
+|---|---|---|
+| `moodStarShortcut` | `"true"` / `"false"` | Primär: direktes User-Like-Flag für den anfragenden Account |
+| `moodMap[accountId]` | `["STAR"]` | Sekundär: accountId → Mood-Liste; enthält `"STAR"` wenn geliked |
+
+Beide Indikatoren können den Like-Zustand korrekt abbilden — je nach API-internem
+Speicherpfad ist nur einer gesetzt. Immer beide prüfen.
+
+**Silent-Fail-Szenarien (API antwortet 200, aber Like wird nicht gesetzt):**
+- **Self-Like-Restriction**: Eigener Post kann nicht geliked werden
+  (verifiziert: Account 23431898 kann Post `wall/23431854_31119189` nicht liken,
+  obwohl API regulär antwortet — `modifDate` bleibt eingefroren)
+- **Unsupported Post-Typ**: `FAMILY_CREATED`-Posts ignorieren wallmood-Calls
+- **Rate-Limit**: Nach vielen Calls kann die API Still-Fails zurückgeben
+
+Erkennungsmerkmal für Silent-Fail: `modifDate` im Response identisch zum Vorherigen
+AND `moodStarShortcut: false` AND `moodMap: {}`.
 
 ## Noch zu verifizieren
 
diff --git a/pyproject.toml b/pyproject.toml
index d3a3e24..0346725 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "mcp-familywall"
-version = "0.4.5"
+version = "0.4.6"
 description = "MCP server for Family Wall — read your family's lists and tasks via Claude"
 readme = "README.md"
 requires-python = ">=3.12"
diff --git a/src/mcp_familywall/server.py b/src/mcp_familywall/server.py
index 333dbfc..5ff2e16 100644
--- a/src/mcp_familywall/server.py
+++ b/src/mcp_familywall/server.py
@@ -532,14 +532,27 @@ def like_post(post_id: str, like: bool = True) -> str:
             indent=2,
         )
 
-    # Confirm the STAR is present in moodMap (server-side representation of a like).
-    now_liked = any("STAR" in moods for moods in mood_map.values())
+    # Two complementary indicators for the like state:
+    # - moodStarShortcut: direct boolean per-user flag on the post object (primary)
+    # - moodMap: dict of accountId → [mood types]; contains "STAR" when liked (secondary)
+    # Use both so either storage path is covered.
+    star_shortcut = wall_obj.get("moodStarShortcut") == "true"
+    star_in_map = any("STAR" in moods for moods in mood_map.values())
+    now_liked = star_shortcut or star_in_map
 
-    return json.dumps(
-        {"liked": now_liked, "id": post_id, "author": account_id},
-        ensure_ascii=False,
-        indent=2,
-    )
+    result: dict[str, Any] = {"liked": now_liked, "id": post_id, "author": account_id}
+
+    # Surface a warning when the like call apparently had no effect, so the
+    # caller can distinguish a successful like from a silent API rejection
+    # (e.g. rate limit, unsupported post type, or self-like restriction).
+    if not now_liked:
+        result["warning"] = (
+            "Like may not have been applied. "
+            "Possible causes: rate limit, unsupported post type (e.g. FAMILY_CREATED), "
+            "or self-like restriction."
+        )
+
+    return json.dumps(result, ensure_ascii=False, indent=2)
 
 
 # ---------------------------------------------------------------------------