diff --git a/python/samples/02-agents/context_providers/redis/redis_basics.py b/python/samples/02-agents/context_providers/redis/redis_basics.py
index 079108bd15..b2f9bb23c2 100644
--- a/python/samples/02-agents/context_providers/redis/redis_basics.py
+++ b/python/samples/02-agents/context_providers/redis/redis_basics.py
@@ -37,6 +37,10 @@
 from redisvl.extensions.cache.embeddings import EmbeddingsCache
 from redisvl.utils.vectorize import OpenAITextVectorizer
 
+# Default Redis URL for local Redis Stack.
+# Override via the REDIS_URL environment variable for remote or authenticated instances.
+REDIS_URL = os.getenv("REDIS_URL", "redis://localhost:6379")
+
 
 # NOTE: approval_mode="never_require" is for sample brevity.
 # Use "always_require" in production; see samples/02-agents/tools/function_tool_with_approval.py
@@ -121,14 +125,14 @@ async def main() -> None:
     vectorizer = OpenAITextVectorizer(
         model="text-embedding-ada-002",
         api_config={"api_key": os.getenv("OPENAI_API_KEY")},
-        cache=EmbeddingsCache(name="openai_embeddings_cache", redis_url="redis://localhost:6379"),
+        cache=EmbeddingsCache(name="openai_embeddings_cache", redis_url=REDIS_URL),
     )
     # The provider manages persistence and retrieval. application_id/agent_id/user_id
     # scope data for multi-tenant separation; thread_id (set later) narrows to a
     # specific conversation.
     provider = RedisContextProvider(
         source_id="redis_context",
-        redis_url="redis://localhost:6379",
+        redis_url=REDIS_URL,
         index_name="redis_basics",
         application_id="matrix_of_kermits",
         agent_id="agent_kermit",
@@ -151,16 +155,14 @@ async def main() -> None:
     from agent_framework import AgentSession, SessionContext
 
     session = AgentSession(session_id="runA")
-    context = SessionContext()
-    context.extend_messages("input", messages)
+    context = SessionContext(input_messages=messages)
     state = session.state
 
     # Store messages via after_run
     await provider.after_run(agent=None, session=session, context=context, state=state)
 
     # Retrieve relevant memories via before_run
-    query_context = SessionContext()
-    query_context.extend_messages("input", [Message("system", ["B: Assistant Message"])])
+    query_context = SessionContext(input_messages=[Message("system", ["B: Assistant Message"])])
     await provider.before_run(agent=None, session=session, context=query_context, state=state)
 
     # Inspect retrieved memories that would be injected into instructions
@@ -179,12 +181,12 @@ async def main() -> None:
     vectorizer = OpenAITextVectorizer(
         model="text-embedding-ada-002",
         api_config={"api_key": os.getenv("OPENAI_API_KEY")},
-        cache=EmbeddingsCache(name="openai_embeddings_cache", redis_url="redis://localhost:6379"),
+        cache=EmbeddingsCache(name="openai_embeddings_cache", redis_url=REDIS_URL),
     )
     # Recreate a clean index so the next scenario starts fresh
     provider = RedisContextProvider(
         source_id="redis_context",
-        redis_url="redis://localhost:6379",
+        redis_url=REDIS_URL,
         index_name="redis_basics_2",
         prefix="context_2",
         application_id="matrix_of_kermits",
@@ -232,7 +234,7 @@ async def main() -> None:
     # Text-only provider (full-text search only). Omits vectorizer and related params.
     provider = RedisContextProvider(
         source_id="redis_context",
-        redis_url="redis://localhost:6379",
+        redis_url=REDIS_URL,
         index_name="redis_basics_3",
         prefix="context_3",
         application_id="matrix_of_kermits",
diff --git a/python/samples/02-agents/context_providers/redis/redis_conversation.py b/python/samples/02-agents/context_providers/redis/redis_conversation.py
index f25dbbbe52..59168ca3c2 100644
--- a/python/samples/02-agents/context_providers/redis/redis_conversation.py
+++ b/python/samples/02-agents/context_providers/redis/redis_conversation.py
@@ -23,6 +23,10 @@
 from redisvl.extensions.cache.embeddings import EmbeddingsCache
 from redisvl.utils.vectorize import OpenAITextVectorizer
 
+# Default Redis URL for local Redis Stack.
+# Override via the REDIS_URL environment variable for remote or authenticated instances.
+REDIS_URL = os.getenv("REDIS_URL", "redis://localhost:6379")
+
 
 async def main() -> None:
     """Walk through provider and chat message store usage.
@@ -34,12 +38,12 @@ async def main() -> None:
     vectorizer = OpenAITextVectorizer(
         model="text-embedding-ada-002",
         api_config={"api_key": os.getenv("OPENAI_API_KEY")},
-        cache=EmbeddingsCache(name="openai_embeddings_cache", redis_url="redis://localhost:6379"),
+        cache=EmbeddingsCache(name="openai_embeddings_cache", redis_url=REDIS_URL),
     )
 
     provider = RedisContextProvider(
         source_id="redis_context",
-        redis_url="redis://localhost:6379",
+        redis_url=REDIS_URL,
         index_name="redis_conversation",
         prefix="redis_conversation",
         application_id="matrix_of_kermits",
diff --git a/python/samples/02-agents/context_providers/redis/redis_sessions.py b/python/samples/02-agents/context_providers/redis/redis_sessions.py
index aa1b7501f8..f0be055e5e 100644
--- a/python/samples/02-agents/context_providers/redis/redis_sessions.py
+++ b/python/samples/02-agents/context_providers/redis/redis_sessions.py
@@ -35,6 +35,10 @@
 from redisvl.extensions.cache.embeddings import EmbeddingsCache
 from redisvl.utils.vectorize import OpenAITextVectorizer
 
+# Default Redis URL for local Redis Stack.
+# Override via the REDIS_URL environment variable for remote or authenticated instances.
+REDIS_URL = os.getenv("REDIS_URL", "redis://localhost:6379")
+
 # Please set OPENAI_API_KEY to use the OpenAI vectorizer.
 # For chat responses, also set AZURE_AI_PROJECT_ENDPOINT and AZURE_OPENAI_RESPONSES_DEPLOYMENT_NAME.
 
@@ -57,12 +61,11 @@ async def example_global_thread_scope() -> None:
 
     provider = RedisContextProvider(
         source_id="redis_context",
-        redis_url="redis://localhost:6379",
+        redis_url=REDIS_URL,
         index_name="redis_threads_global",
         application_id="threads_demo_app",
         agent_id="threads_demo_agent",
         user_id="threads_demo_user",
-        scope_to_per_operation_thread_id=False,  # Share memories across all sessions
     )
 
     agent = client.as_agent(
@@ -106,19 +109,16 @@ async def example_per_operation_thread_scope() -> None:
     vectorizer = OpenAITextVectorizer(
         model="text-embedding-ada-002",
         api_config={"api_key": os.getenv("OPENAI_API_KEY")},
-        cache=EmbeddingsCache(name="openai_embeddings_cache", redis_url="redis://localhost:6379"),
+        cache=EmbeddingsCache(name="openai_embeddings_cache", redis_url=REDIS_URL),
     )
 
     provider = RedisContextProvider(
         source_id="redis_context",
-        redis_url="redis://localhost:6379",
+        redis_url=REDIS_URL,
         index_name="redis_threads_dynamic",
-        # overwrite_redis_index=True,
-        # drop_redis_index=True,
         application_id="threads_demo_app",
         agent_id="threads_demo_agent",
         user_id="threads_demo_user",
-        scope_to_per_operation_thread_id=True,  # Isolate memories per session
         redis_vectorizer=vectorizer,
         vector_field_name="vector",
         vector_algorithm="hnsw",
@@ -172,12 +172,12 @@ async def example_multiple_agents() -> None:
     vectorizer = OpenAITextVectorizer(
         model="text-embedding-ada-002",
         api_config={"api_key": os.getenv("OPENAI_API_KEY")},
-        cache=EmbeddingsCache(name="openai_embeddings_cache", redis_url="redis://localhost:6379"),
+        cache=EmbeddingsCache(name="openai_embeddings_cache", redis_url=REDIS_URL),
     )
 
     personal_provider = RedisContextProvider(
         source_id="redis_context",
-        redis_url="redis://localhost:6379",
+        redis_url=REDIS_URL,
         index_name="redis_threads_agents",
         application_id="threads_demo_app",
         agent_id="agent_personal",
@@ -196,7 +196,7 @@ async def example_multiple_agents() -> None:
 
     work_provider = RedisContextProvider(
         source_id="redis_context",
-        redis_url="redis://localhost:6379",
+        redis_url=REDIS_URL,
         index_name="redis_threads_agents",
         application_id="threads_demo_app",
         agent_id="agent_work",