OpenTelemetry Instrumentation Wizard Automates Observability Across 7 Languages

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A developer has built the OpenTelemetry Instrumentation Wizard, a Python and Streamlit-based tool that automatically injects distributed tracing, metrics, and logging into existing codebases without altering business logic. The tool supports seven programming languages including Python, Go, Java, JavaScript, TypeScript, C, and C#, applying language-specific injection strategies such as AST parsing for Python and regex-based templating for Go. It operates through a multi-stage pipeline that handles language detection, safety checks to prevent duplicate instrumentation, and clearly marked code injection. A key safety feature scans for pre-existing OpenTelemetry imports before making changes, ensuring idempotency and avoiding broken dependencies. The project includes a full pytest suite with 128 assertions across eight test files, and was developed to address the recurring challenge of manually instrumenting heterogeneous production codebases at scale.

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