diff --git a/core/playlists/sources/spotify_public.py b/core/playlists/sources/spotify_public.py
index 51189687..4ab21164 100644
--- a/core/playlists/sources/spotify_public.py
+++ b/core/playlists/sources/spotify_public.py
@@ -35,14 +35,19 @@ class SpotifyPublicPlaylistSource(PlaylistSource):
         """``playlist_id`` is a Spotify URL or ``open.spotify.com`` URI."""
         from core.spotify_public_scraper import (
             parse_spotify_url,
-            scrape_spotify_embed,
+            fetch_spotify_public,
         )
 
         parsed = parse_spotify_url(playlist_id)
         if not parsed:
             return None
 
-        data = scrape_spotify_embed(parsed["type"], parsed["id"])
+        # #838: use the full-fetch wrapper (paginates past the embed widget's
+        # ~100-track cap), NOT scrape_spotify_embed directly. The rest of the app
+        # already uses fetch_spotify_public; the adapter calling the capped embed
+        # scraper is why auto-sync truncated >100-track playlists to 100 while the
+        # initial discovery got the whole thing. Same return shape, so drop-in.
+        data = fetch_spotify_public(parsed["type"], parsed["id"])
         if not isinstance(data, dict) or data.get("error"):
             return None
 
diff --git a/tests/test_playlist_sources_adapters.py b/tests/test_playlist_sources_adapters.py
index 18ef4d3b..38e7b518 100644
--- a/tests/test_playlist_sources_adapters.py
+++ b/tests/test_playlist_sources_adapters.py
@@ -915,3 +915,34 @@ def test_mirror_dict_spotify_public_emits_spotify_hint():
     extra = _json.loads(d["extra_data"])
     assert extra["discovered"] is False
     assert extra["spotify_hint"]["id"] == "sptrk"
+
+
+def test_spotify_public_adapter_paginates_past_100(monkeypatch):
+    """#838: auto-sync truncated >100-track playlists to 100 because the adapter
+    called the embed scraper (≤100) directly instead of the full-fetch wrapper.
+    With the wrapper, a playlist whose full fetch returns 150 tracks keeps all 150."""
+    src = SpotifyPublicPlaylistSource()
+
+    monkeypatch.setattr(
+        "core.spotify_public_scraper.parse_spotify_url",
+        lambda url: {"type": "playlist", "id": "big"},
+    )
+    full = {
+        "id": "big", "type": "playlist", "name": "Big PL", "subtitle": "owner",
+        "url": "https://open.spotify.com/playlist/big", "url_hash": "bighash",
+        "tracks": [
+            {"id": f"t{i}", "name": f"Song {i}", "artists": [{"name": "A"}],
+             "duration_ms": 1000, "is_explicit": False, "track_number": i + 1}
+            for i in range(150)
+        ],
+    }
+    # The full paginated path succeeds → wrapper returns all 150 (no embed cap).
+    monkeypatch.setattr(
+        "core.spotify_public_api.fetch_public_playlist_full",
+        lambda spotify_id: full,
+    )
+
+    detail = src.get_playlist("https://open.spotify.com/playlist/big")
+    assert detail is not None
+    assert len(detail.tracks) == 150, "pre-#838 the adapter capped this at 100"
+    assert detail.meta.track_count == 150