Restore Avatar Shell client details section

- Added Avatar Shell section back to client details
- Added Avatar Shell link reference

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

Author: olaservo

docs/clients.mdx

@@ -127,6 +127,7 @@ This page provides an overview of applications that support the Model Context Pr
 [Amp]: https://ampcode.com
 [Apify MCP Tester]: https://apify.com/jiri.spilka/tester-mcp-client
 [AugmentCode]: https://augmentcode.com
+[Avatar Shell]: https://github.com/mfukushim/avatar-shell
 [BeeAI Framework]: https://framework.beeai.dev
 [BoltAI]: https://boltai.com
 [Call Chirp]: https://www.call-chirp.com
@@ -330,6 +331,17 @@ It uses plain JavaScript (old-school style) and is hosted on Apify, allowing you
 - Automate your development workflows with MCP tools.
 - Works in VS Code and JetBrains IDEs.
 
+### Avatar Shell
+
+[Avatar-Shell](https://github.com/mfukushim/avatar-shell) is an electron-based MCP client application that prioritizes avatar conversations and media output such as images.
+
+**Key features:**
+
+- MCP tools and resources can be used
+- Supports avatar-to-avatar communication via socket.io.
+- Supports the mixed use of multiple LLM APIs.
+- The daemon mechanism allows for flexible scheduling.
+
 ### BeeAI Framework
 
 [BeeAI Framework](https://framework.beeai.dev) is an open-source framework for building, deploying, and serving powerful agentic workflows at scale. The framework includes the **MCP Tool**, a native feature that simplifies the integration of MCP servers into agentic workflows.