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Show HN: TraceGen – realistic OpenTelemetry traces, incl. AI-agent, one binary

TraceGen is a single-binary trace generator that produces realistic, topology-rich OTLP traces and correlated logs, simulating a full e-commerce platform with up to 28 services and 40 scenario flows including AI agentic patterns. It requires no infrastructure setup – just one executable. Built for testing observability platforms and showcasing distributed system visualizations, it supports traditional APM and LLM observability in a unified tool.

SourceHacker News AIAuthor: dkowalski
Show HN: TraceGen – realistic OpenTelemetry traces, incl. AI-agent, one binary
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Key points

  • TraceGen generates realistic OpenTelemetry traces from a single binary, simulating an e-commerce platform with 28 microservices and 40 scenario flows, including AI agentic traces.
  • It supports three complexity levels (light/normal/heavy) and includes chaos/failure injection (lost messages, retry storms, saga compensation) for testing resilience.
  • All AI scenarios follow OTel GenAI Semantic Conventions, covering LLM calls, embeddings, agent tool use, and RAG, enabling direct comparison with LLM observability tools.
  • Traces are accompanied by correlated logs, and it can send to any OTLP collector; a demo is available at demo.iapm.app.

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