Add Valkey session manager documentation (#334)

- Add strands-valkey-session-manager to community session managers
- Document high-performance Redis/Valkey-based session storage
- Include installation, usage examples, and configuration details

Author: mvijil910

docs/community/session-managers/strands-valkey-session-manager.md

@@ -0,0 +1,102 @@
+# Strands Valkey Session Manager
+
+{{ community_contribution_banner }}
+
+The [Strands Valkey Session Manager](https://github.com/jeromevdl/strands-valkey-session-manager) is a high-performance session manager for Strands Agents that uses Valkey/Redis for persistent storage. Valkey is a very-low latency cache that enables agents to maintain conversation history and state across multiple interactions, even in distributed environments.
+
+Tested with Amazon ElastiCache Serverless (Redis 7.1, Valkey 8.1), ElastiCache (Redis 7.1, Valkey 8.2), and Upstash.
+
+## Installation
+
+```bash
+pip install strands-valkey-session-manager
+```
+
+## Usage
+
+### Basic Setup
+
+```python
+from strands import Agent
+from strands_valkey_session_manager import ValkeySessionManager
+from uuid import uuid4
+import valkey
+
+# Create a Valkey client
+client = valkey.Valkey(host="localhost", port=6379, decode_responses=True)
+
+# Create a session manager with a unique session ID
+session_id = str(uuid4())
+session_manager = ValkeySessionManager(
+    session_id=session_id,
+    client=client
+)
+
+# Create an agent with the session manager
+agent = Agent(session_manager=session_manager)
+
+# Use the agent - all messages are automatically persisted
+agent("Hello! Tell me about Valkey.")
+
+# The conversation is now stored in Valkey and can be resumed later using the same session_id
+
+# Display conversation history
+messages = session_manager.list_messages(session_id, agent.agent_id)
+for msg in messages:
+    role = msg.message["role"]
+    content = msg.message["content"][0]["text"]
+    print(f"** {role.upper()}**: {content}")
+```
+
+## Key Features
+
+- **Persistent Sessions**: Store agent conversations and state in Valkey/Redis
+- **Distributed Ready**: Share sessions across multiple application instances
+- **High Performance**: Leverage Valkey's speed for fast session operations
+- **JSON Storage**: Native JSON support for complex data structures
+- **Automatic Cleanup**: Built-in session management and cleanup capabilities
+
+## Configuration
+
+### ValkeySessionManager Parameters
+
+- `session_id`: Unique identifier for the session
+- `client`: Configured Valkey client instance (only synchronous versions are supported)
+
+### Storage Structure
+
+The ValkeySessionManager stores data using the following key structure:
+
+```
+session:<session_id>                                        # Session metadata
+session:<session_id>:agent:<agent_id>                       # Agent state and metadata
+session:<session_id>:agent:<agent_id>:message:<message_id>  # Individual messages
+```
+
+## Available Methods
+
+The following methods are used transparently by Strands:
+
+- `create_session(session)`: Create a new session
+- `read_session(session_id)`: Retrieve session data
+- `delete_session(session_id)`: Remove session and all associated data
+- `create_agent(session_id, agent)`: Store agent in session
+- `read_agent(session_id, agent_id)`: Retrieve agent data
+- `update_agent(session_id, agent)`: Update agent state
+- `create_message(session_id, agent_id, message)`: Store message
+- `read_message(session_id, agent_id, message_id)`: Retrieve message
+- `update_message(session_id, agent_id, message)`: Update message
+- `list_messages(session_id, agent_id, limit=None)`: List all messages
+
+## Requirements
+
+- Python 3.10+
+- Valkey/Redis server
+- strands-agents >= 1.0.0
+- valkey >= 6.0.0
+
+## References
+
+- **PyPI**: [strands-valkey-session-manager](https://pypi.org/project/strands-valkey-session-manager/)
+- **GitHub**: [jeromevdl/strands-valkey-session-manager](https://github.com/jeromevdl/strands-valkey-session-manager)
+- **Issues**: Report bugs and feature requests in the [GitHub repository](https://github.com/jeromevdl/strands-valkey-session-manager/issues)

mkdocs.yml

@@ -163,6 +163,7 @@ nav:
         - Fireworks AI: community/model-providers/fireworksai.md
       - Session Managers:
           - Amazon AgentCore Memory: community/session-managers/agentcore-memory.md
+          - Valkey/Redis: community/session-managers/strands-valkey-session-manager.md
 
   - Contribute ❤️: https://github.com/strands-agents/sdk-python/blob/main/CONTRIBUTING.md
   - API Reference: