Agent observability tooling is lacking: devs want a local OTEL service for traces

Cautious_Chicken_604 · reddit · 2026-09-08

A developer argues agent observability tooling is severely lacking for mining LLM calls, tool calls, and file I/O to engineer out failure modes. dsh's built-in trajectory tab is closest to what they want, but they seek a locally-hosted standalone service with OTEL export, custom spans, and a session-based UI showing agent/subagent file reads, writes, and tool calls. They tried and dropped Opik (no opencode support, poor UX), considered cobbling together their Cstack of Seq/Jaeger/Grafana, and ruled out vibecoding a custom solution. The post doubles as a community survey on what others use.

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