feat: Add OpenTelemetry integration design proposal #597
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JAORMX
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| Environment variable support: | ||
| ```bash | ||
| TOOLHIVE_OTEL_ENABLED=true | ||
| TOOLHIVE_OTEL_ENDPOINT=https://api.honeycomb.io |
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Right! that's the idea; or a command line flag for this would be good too.
This proposal outlines a comprehensive approach to add OpenTelemetry observability to ToolHive's MCP server proxies through middleware-based instrumentation. Key features: - Leverages existing middleware system for clean integration - Supports both SSE and stdio transport modes - Provides traces, metrics, and structured logging - Includes MCP-specific instrumentation beyond HTTP metrics - Supports multiple OTEL backends and Prometheus integration - Maintains backward compatibility with zero performance regression The design includes detailed examples of traces and metrics for tools/call operations, showing rich observability into MCP protocol interactions. Related-to: #474 Signed-off-by: Juan Antonio Osorio <[email protected]>
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This proposal outlines a comprehensive approach to add OpenTelemetry observability to ToolHive's MCP server proxies through middleware-based instrumentation.
Key Features
What's Included
The design follows KISS and DRY principles by leveraging existing patterns and infrastructure, making it maintainable and extensible for future observability needs.
Related-to: #474