Add AIRIS MCP Gateway

Docker-based MCP multiplexer that aggregates 60+ tools behind 7 meta-tools,
reducing context token usage by 97%.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: kazukinakai

README.md

@@ -275,6 +275,7 @@ Product management and business analysis.
 
 Agent coordination and meta-programming.
 
+- [**airis-mcp-gateway**](https://github.com/agiletec-inc/airis-mcp-gateway) - Docker-based MCP multiplexer that aggregates 60+ tools behind 7 meta-tools, reducing context token usage by 97%. One command to start, auto-enables servers on demand
 - [**agent-installer**](categories/09-meta-orchestration/agent-installer.md) - Browse and install agents from this repository via GitHub
 - [**agent-organizer**](categories/09-meta-orchestration/agent-organizer.md) - Multi-agent coordinator
 - [**context-manager**](categories/09-meta-orchestration/context-manager.md) - Context optimization expert