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Show HN: AgentTrace–Observability and runtime self-healing engine for AI agents

AgentTrace launched as an open-source observability SDK and dashboard that monitors multi-step tool calls in autonomous AI agent pipelines and automatically repairs malformed LLM tool arguments at runtime. The tool catches common LLM failures — passing strings instead of floats such as "1200 INR" instead of 1200.0, inventing key names like "user_identifier" instead of "user_id", and omitting required schema fields — and uses Groq-based fast inference to repair payloads before they crash workflows. The stack pairs a Python/Pydantic decorator SDK with a FastAPI and SQLite collector backend and a Next.js, Tailwind CSS dashboard featuring a Payload Diff Inspector.

read1 min views1 publishedSep 20, 2026
Show HN: AgentTrace–Observability and runtime self-healing engine for AI agents
Image: Michielbdejong (auto-discovered)

Live Production Demo:

An end-to-end observability SDK and dashboard for autonomous AI agent pipelines. It monitors multi-step tool calls, visualizes latency bottlenecks, and automatically repairs malformed LLM tool arguments at runtime without crashing workflows.

LLMs frequently hallucinate tool arguments during multi-step runs:

  • Passing strings instead of floats (e.g. "1200 INR" instead of1200.0 )
  • Inventing key names (e.g. "user_identifier" instead of"user_id" )
  • Omitting required schema fields

Normally, these cause immediate runtime crashes. AgentTrace catches these failures and auto-repairs them at runtime.

  • Decorator SDK: Python, Pydantic (Validates schema before tool run)
  • Self-Healing Layer: Fast inference via Groq to repair payloads on failure
  • Collector Backend: FastAPI with SQLite persistence (traces.db )
  • Live Dashboard: Next.js, Tailwind CSS with Payload Diff Inspector
python -m uvicorn main:app --reload --port 8000
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