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debug-with-langwatch

Root-cause production errors and misbehaving agent runs with LangWatch. Finds errored traces, inspects spans, checks monitor and evaluator scores, then narrows to a root cause. Use when something is failing or misbehaving in production (errors, bad answers, latency spikes).

services/langyagent/internal/assets/skills/debug-with-langwatch/SKILL.md

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# Debug Production Issues with LangWatch

A structured diagnostic workflow: errored traces → span inspection → monitor/evaluator scores → root cause. Work the steps in order; each narrows the search space for the next.

If traces themselves look broken (empty inputs/outputs, disconnected spans), switch to the `debug-instrumentation` recipe instead. That is an instrumentation problem, not an application problem.

## Prerequisites

## Step 0: Point the CLI at the Right Project

```bash
langwatch status
```