diff --git a/docs/21-language-service.md b/docs/21-language-service.md
index 89178b8..3d19f78 100644
--- a/docs/21-language-service.md
+++ b/docs/21-language-service.md
@@ -164,7 +164,8 @@ name used in an expression is one only once P7 bound it. No query raises on a
 snapshot that stopped at any stage (`test_service_queries.py`).
 
 **Shared semantic indices.** A snapshot owns lazy declaration enumeration and
-file grouping, shared by outline, workspace symbols and hover subjects. ID lookup
+file grouping, shared by outline, workspace symbols, hover subjects and
+effective-type code lenses. ID lookup
 populates separately on first hierarchy preparation/rebinding; the reverse map
 populates separately on first subtype request. It records direct `inherits` and
 `alias` edges, deduplicates repeated parents, and preserves child declaration order.
diff --git a/fastraml/service/lenses.py b/fastraml/service/lenses.py
index 509a072..4d15cb5 100644
--- a/fastraml/service/lenses.py
+++ b/fastraml/service/lenses.py
@@ -5,13 +5,13 @@
 from dataclasses import dataclass
 from typing import TYPE_CHECKING
 
-from fastraml.parser.fragments import every_declaration
 from fastraml.types.base import BaseShape
 from fastraml.views.render import render
 
 if TYPE_CHECKING:
     from fastraml.positions import Position
     from fastraml.registry import Raml
+    from fastraml.service.index import SemanticIndex
     from fastraml.service.workspace import Snapshot
 
 
@@ -26,12 +26,13 @@ class EffectiveViews:
 
     __slots__ = ('by_site', 'by_uri')
 
-    def __init__(self, raml: Raml) -> None:
+    def __init__(self, raml: Raml, semantic: SemanticIndex) -> None:
         self.by_uri: dict[str, list[Lens]] = {}
         self.by_site: dict[tuple[str, int, int, str], BaseShape] = {}
         if not raml.unwrapped:
             return
-        for _, name, base in every_declaration(raml):
+        # The snapshot's one enumeration, shared with outline, hover and symbols.
+        for _, name, base in semantic.declarations:
             if not isinstance(base, BaseShape) or base.id in raml.broken:
                 continue
             span = base.key_pos if base.key_pos.is_known else base.value_pos
diff --git a/fastraml/service/workspace.py b/fastraml/service/workspace.py
index 87a5f74..3097d76 100644
--- a/fastraml/service/workspace.py
+++ b/fastraml/service/workspace.py
@@ -130,8 +130,9 @@ def data(self) -> DataHover | None:
 
     @property
     def effective_views(self) -> EffectiveViews | None:
-        if self._effective_views is None and self.raml is not None:
-            self._effective_views = EffectiveViews(self.raml)
+        semantic = self.semantic
+        if self._effective_views is None and self.raml is not None and semantic is not None:
+            self._effective_views = EffectiveViews(self.raml, semantic)
         return self._effective_views
 
     @property
diff --git a/tests/unit/test_service_indices.py b/tests/unit/test_service_indices.py
index 1ca8495..d25623c 100644
--- a/tests/unit/test_service_indices.py
+++ b/tests/unit/test_service_indices.py
@@ -4,7 +4,7 @@
 
 from fastraml.positions import Position
 from fastraml.service import index as index_module
-from fastraml.service import inlays, outline, queries
+from fastraml.service import inlays, lenses, outline, queries
 from fastraml.service.datahover import DataHover
 from fastraml.service.hover import Hover
 from tests.unit.test_service_data_hover import DOCUMENT
@@ -36,6 +36,7 @@ def declarations(raml):
     assert first
     assert outline.document_symbols(snapshot, uri) is first
     queries.workspace_symbols([snapshot], 'Book')
+    assert lenses.code_lenses(snapshot, uri)
     assert snapshot.hover is not None
     assert enumerations == 1
     assert snapshot.semantic is not None
@@ -43,6 +44,16 @@ def declarations(raml):
     assert snapshot.semantic._children is None
 
 
+def test_code_lenses_read_the_snapshots_shared_declaration_enumeration(memory_workspace):
+    workspace, folder = _buffered(memory_workspace, {'api.raml': API, 'lib.raml': LIBRARY, 'cover.raml': COVER})
+    uri = f'{folder}/api.raml'
+    snapshot = workspace.snapshot(uri)
+    assert snapshot._semantic is None
+    assert [lens.name for lens in lenses.code_lenses(snapshot, uri)] == ['Entity', 'Book']
+    assert snapshot._semantic is not None
+    assert snapshot._semantic._declarations is not None
+
+
 def test_typed_definition_before_hover_shares_one_data_population_without_presentation(memory_workspace, monkeypatch):
     workspace, folder = _buffered(memory_workspace, {'api.raml': DOCUMENT})
     uri = f'{folder}/api.raml'