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OpenTelemetry and Langfuse observability exporter for DeepSeek Harness: turn/step/tool/LLM spans, token and cost metrics, and sanitized LLM prompt/completion capture from the session/event stream, with async batching, bounded offline buffering, and retry

What a DeepSeek Harness run costs in tokens, money, and time. OpenTelemetry traces, metrics, and logs in GreptimeDB, with seven Grafana dashboards.

Litefuse observability for DeepSeek Harness: every user turn becomes one agent trace with per-call generations, tool spans, and subagent subtrees

DeepSeek Harness (dsh) plugin: persist session trajectories to S3/OSS (JSONL) and OTel GenAI spans (OTLP).

OpenTelemetry (OTLP/HTTP) + Langfuse trace exporter for DeepSeek Harness — GenAI semconv, sanitized before send, batched with retry, off by default.