Root cause analysis on production LLM traces. Diagnoses why an LLM application is failing — works from eval judge verdicts, runtime errors, or structural anomalies depending on what signals are present. Walks the span tree from symptom to root cause.
Install
npx skills add datadog-labs/agent-skills --skill agent-observability-trace-rcanpx skills add datadog-labs/agent-skills --skill agent-observability-trace-rca -a claude-code -gnpx skills add datadog-labs/agent-skills --skill agent-observability-trace-rca -a codex -ggemini skills install https://github.com/datadog-labs/agent-skills.git --path agent-observability/agent-observability-trace-rcagh skill install datadog-labs/agent-skills agent-observability-trace-rcagit clone --depth 1 https://github.com/datadog-labs/agent-skills /tmp/datadog-labs__agent-skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/datadog-labs__agent-skills/agent-observability/agent-observability-trace-rca ~/.claude/skills/agent-observability-trace-rca # Claude Code
cp -R /tmp/datadog-labs__agent-skills/agent-observability/agent-observability-trace-rca ~/.agents/skills/agent-observability-trace-rca # Codex, Cursor, Gemini CLI, Copilot, OpenCode