diff --git a/generate_models.sh b/generate_models.sh
index a45543c..f6e79ad 100755
--- a/generate_models.sh
+++ b/generate_models.sh
@@ -66,6 +66,7 @@ mkdir -p "$OUTPUT_DIR"
 # Run generation using uv
 # We use --use-schema-description to use descriptions from JSON schema as docstrings
 # We use --field-constraints to include validation constraints (regex, min/max, etc.)
+# We use --reuse-model to collapse structurally identical generated types.
 # Note: Formatting is done as a post-processing step.
 uv run \
     --link-mode=copy \
@@ -83,6 +84,7 @@ uv run \
     --use-double-quotes \
     --allow-extra-fields \
     --use-type-alias \
+    --reuse-model \
     --custom-template-dir templates \
     --additional-imports pydantic.ConfigDict
 
diff --git a/src/ucp_sdk/models/schemas/capability.py b/src/ucp_sdk/models/schemas/capability.py
index 475e6dd..81213b0 100644
--- a/src/ucp_sdk/models/schemas/capability.py
+++ b/src/ucp_sdk/models/schemas/capability.py
@@ -58,23 +58,10 @@
 """
 
 
-Extends2 = TypeAliasType(
-    "Extends2",
-    Annotated[
-        str, Field(..., pattern="^[a-z][a-z0-9]*(?:\\.[a-z][a-z0-9_]*)+$")
-    ],
-)
-"""
-Parent capability(s) this extends. Present for extensions, absent for root capabilities. Use array for multi-parent extensions.
-"""
+Extends2 = TypeAliasType("Extends2", Extends)
 
 
-Extends3Item = TypeAliasType(
-    "Extends3Item",
-    Annotated[
-        str, Field(..., pattern="^[a-z][a-z0-9]*(?:\\.[a-z][a-z0-9_]*)+$")
-    ],
-)
+Extends3Item = TypeAliasType("Extends3Item", Extends1Item)
 
 
 Extends3 = TypeAliasType(
@@ -85,23 +72,10 @@
 """
 
 
-Extends4 = TypeAliasType(
-    "Extends4",
-    Annotated[
-        str, Field(..., pattern="^[a-z][a-z0-9]*(?:\\.[a-z][a-z0-9_]*)+$")
-    ],
-)
-"""
-Parent capability(s) this extends. Present for extensions, absent for root capabilities. Use array for multi-parent extensions.
-"""
+Extends4 = TypeAliasType("Extends4", Extends)
 
 
-Extends5Item = TypeAliasType(
-    "Extends5Item",
-    Annotated[
-        str, Field(..., pattern="^[a-z][a-z0-9]*(?:\\.[a-z][a-z0-9_]*)+$")
-    ],
-)
+Extends5Item = TypeAliasType("Extends5Item", Extends1Item)
 
 
 Extends5 = TypeAliasType(
@@ -112,23 +86,10 @@
 """
 
 
-Extends6 = TypeAliasType(
-    "Extends6",
-    Annotated[
-        str, Field(..., pattern="^[a-z][a-z0-9]*(?:\\.[a-z][a-z0-9_]*)+$")
-    ],
-)
-"""
-Parent capability(s) this extends. Present for extensions, absent for root capabilities. Use array for multi-parent extensions.
-"""
+Extends6 = TypeAliasType("Extends6", Extends)
 
 
-Extends7Item = TypeAliasType(
-    "Extends7Item",
-    Annotated[
-        str, Field(..., pattern="^[a-z][a-z0-9]*(?:\\.[a-z][a-z0-9_]*)+$")
-    ],
-)
+Extends7Item = TypeAliasType("Extends7Item", Extends1Item)
 
 
 Extends7 = TypeAliasType(