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+# YAML Schema Meta-Schema (Draft 2025-11)
+# Source: https://github.com/johndoe6345789/yaml-schema
+#
+# This meta-schema enables IDE validation for YAML files in the MetaBuilder project.
+# YAML files should include the following directive at the top:
+#   # yaml-language-server: $schema=../../yaml-schema.yaml
+#
+# Used by:
+# - packages/*/seed/schema/entities.yaml (database entity definitions)
+# - Other YAML configuration files
+#
+$schema: https://yaml-schema.net/yaml-schema.yaml
+$id: https://yaml-schema.net/draft/2025-11/meta-schema
+title: YAML Schema meta-schema
+description: Meta-schema for YAML Schema, based on JSON Schema meta-schema
+type: object
+$defs:
+  valid_types:
+    description: A list of valid types
+    type: string
+    enum:
+      # Scalars
+      - boolean
+      - integer
+      - number
+      - string
+      - "null"
+      # Complex Types
+      - array
+      - enum
+      - object
+      # Composition Types
+      - allOf
+      - anyOf
+      - not
+      - oneOf
+  schema_type:
+    description: >-
+      The type of the schema
+    oneOf:
+      - $ref: "#/$defs/valid_types"
+      - type: array
+        items:
+          $ref: "#/$defs/valid_types"
+  schema:
+    description: >-
+      A meta schema for a YAML object schema
+    type: object
+    properties:
+      type:
+        $ref: "#/$defs/schema_type"
+      properties:
+        description: The properties that are defined in the schema
+        type: object
+        patternProperties:
+          "^[a-zA-Z0-9_-]+$":
+            $ref: "#/$defs/schema"
+      description:
+        type: string
+      enum:
+        description: An array of accepted values
+        type: array
+      const:
+        description: A scalar value that must match the value
+        type:
+          - string
+          - integer
+          - number
+          - boolean
+  array_of_schemas:
+    description: >-
+      An array of schemas
+    type: array
+    items:
+      $ref: "#/$defs/schema"
+properties:
+  $schema:
+    description: Specifies which draft of the JSON Schema standard the schema adheres to.
+    type: string
+  $id:
+    description: >-
+      Sets a URI for the schema. You can use this unique URI to refer to elements of the
+      schema from inside the same document or from external JSON documents.
+    type: string
+  $defs:
+    description: A container for reusable JSON Schema fragments.
+    type: object
+    patternProperties:
+      "^[a-zA-Z0-9_-]+$":
+        $ref: "#/$defs/schema"
+  title:
+    description: >-
+      The title of the schema
+    type: string
+  description:
+    description: A description of the schema
+    type: string
+  type:
+    description: defines the first constraint on the JSON data.
+    $ref: "#/$defs/schema_type"
+  properties:
+    description: >-
+      The properties that are defined in the schema
+    type: object
+    patternProperties:
+      "^[a-zA-Z0-9_-]+$":
+        $ref: "#/$defs/schema"
+  additionalProperties:
+    oneOf:
+      - type: boolean
+      - $ref: "#/$defs/array_of_schemas"
+additionalProperties: false