diff --git a/docs/api/exceptions.rst b/docs/api/exceptions.rst
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--- /dev/null
+++ b/docs/api/exceptions.rst
@@ -0,0 +1,200 @@
+***********
+Exceptions
+***********
+
+RedisVL defines its custom exceptions in ``redisvl.exceptions``. Every one of them
+inherits from :class:`RedisVLError`, so catching that single base class is enough to
+handle any error the library raises on its own behalf. Catch the more specific
+subclasses when you want to react differently to, for example, a schema validation
+failure than to a Redis connection problem.
+
+.. code-block:: text
+
+    Exception
+    └── RedisVLError
+        ├── RedisSearchError
+        ├── SchemaValidationError
+        ├── QueryValidationError
+        └── RedisModuleVersionError
+
+.. note::
+
+   Exceptions raised by the underlying ``redis-py`` client, such as
+   ``redis.exceptions.ConnectionError``, are not part of this hierarchy. Where
+   RedisVL performs an index or search operation on your behalf it wraps those
+   errors in a :class:`RedisSearchError` and chains the original exception, so the
+   underlying cause is still available on ``__cause__``.
+
+
+When each error is raised
+=========================
+
+.. list-table::
+   :widths: 28 42 30
+   :header-rows: 1
+
+   * - Exception
+     - Raised when
+     - Typical entry points
+   * - :class:`SchemaValidationError`
+     - An object does not match the index schema. Only raised when the index was
+       created with ``validate_on_load=True``.
+     - ``load()``
+   * - :class:`QueryValidationError`
+     - A query is not valid for the index it targets, for example setting
+       ``ef_runtime`` on a vector field that uses the ``flat`` algorithm.
+     - ``query()``
+   * - :class:`RedisSearchError`
+     - An index or search operation fails, including errors returned by Redis
+       itself.
+     - ``create()``, ``delete()``, ``search()``, ``aggregate()``
+   * - :class:`RedisModuleVersionError`
+     - The connected Redis or Redis Search version does not support a requested
+       feature, such as an ``svs-vamana`` vector field.
+     - ``create()``
+   * - :class:`RedisVLError`
+     - A load operation fails for a reason not covered by a more specific error.
+       Also the base class for everything above.
+     - ``load()``
+
+All of the above apply equally to :class:`~redisvl.index.SearchIndex` and
+:class:`~redisvl.index.AsyncSearchIndex`.
+
+
+Handling errors
+===============
+
+Validating data on load
+-----------------------
+
+Schema validation is off by default. Pass ``validate_on_load=True`` to have RedisVL
+check each object against the index schema before writing it, and raise
+:class:`SchemaValidationError` on the first object that does not match.
+
+.. code-block:: python
+
+    from redisvl.index import SearchIndex
+    from redisvl.exceptions import SchemaValidationError
+
+    index = SearchIndex.from_yaml(
+        "schema.yaml",
+        redis_url="redis://localhost:6379",
+        validate_on_load=True,
+    )
+
+    try:
+        index.load(data)
+    except SchemaValidationError as e:
+        # The message identifies the offending object by its position in the
+        # input and describes which field failed and why.
+        print(f"Invalid record: {e}")
+
+The error message reports the index of the object within the batch you passed, so a
+failure part way through a large load still points at a specific record.
+
+Handling query failures
+-----------------------
+
+:class:`QueryValidationError` signals a query that cannot run against this index. It
+is a programming error rather than a transient one, so it is usually worth failing
+loudly instead of retrying.
+
+.. code-block:: python
+
+    from redisvl.query import VectorQuery
+    from redisvl.exceptions import QueryValidationError
+
+    query = VectorQuery(
+        vector=[0.1, 0.2, 0.3],
+        vector_field_name="embedding",
+        return_fields=["title"],
+        ef_runtime=50,  # only supported by the 'hnsw' algorithm
+    )
+
+    try:
+        results = index.query(query)
+    except QueryValidationError as e:
+        print(f"Query rejected: {e}")
+
+Separating configuration problems from Redis problems
+-----------------------------------------------------
+
+:class:`RedisModuleVersionError` is a subclass of :class:`RedisVLError`, not of
+:class:`RedisSearchError`, so ordering the ``except`` clauses lets you distinguish an
+unsupported feature from a genuine Redis failure.
+
+.. code-block:: python
+
+    from redisvl.exceptions import RedisModuleVersionError, RedisSearchError
+
+    try:
+        index.create(overwrite=True)
+    except RedisModuleVersionError as e:
+        # The deployment does not support the requested feature, for example an
+        # 'svs-vamana' field on a Redis version without a new enough Redis Search.
+        print(f"Unsupported by this Redis deployment: {e}")
+    except RedisSearchError as e:
+        # Something went wrong talking to Redis, or the index definition was
+        # rejected. The original redis-py exception is available as e.__cause__.
+        print(f"Index creation failed: {e}")
+
+Catching everything
+-------------------
+
+When the calling code only needs to know that the operation failed, catch the base
+class.
+
+.. code-block:: python
+
+    from redisvl.exceptions import RedisVLError
+
+    try:
+        index.load(data)
+        results = index.query(query)
+    except RedisVLError as e:
+        logger.error("RedisVL operation failed: %s", e)
+        raise
+
+Because RedisVL chains the underlying exception when it wraps one, ``e.__cause__``
+still holds the original ``redis-py`` error where there was one.
+
+
+Exception classes
+=================
+
+.. currentmodule:: redisvl.exceptions
+
+RedisVLError
+------------
+
+.. autoclass:: RedisVLError
+   :members:
+   :show-inheritance:
+
+RedisSearchError
+----------------
+
+.. autoclass:: RedisSearchError
+   :members:
+   :show-inheritance:
+
+SchemaValidationError
+---------------------
+
+.. autoclass:: SchemaValidationError
+   :members:
+   :show-inheritance:
+
+QueryValidationError
+--------------------
+
+.. autoclass:: QueryValidationError
+   :members:
+   :show-inheritance:
+
+RedisModuleVersionError
+-----------------------
+
+.. autoclass:: RedisModuleVersionError
+   :members:
+   :show-inheritance:
diff --git a/docs/api/index.md b/docs/api/index.md
index 1da7df59..19c4a5f1 100644
--- a/docs/api/index.md
+++ b/docs/api/index.md
@@ -24,5 +24,6 @@ cache
 message_history
 router
 cli
+exceptions
 ```