langsmith-fetch
Fetch and analyze LangChain and LangGraph execution traces from LangSmith Studio for agent debugging.
- Retrieves recent traces and performs root-cause analysis on agent failures, tool calls, memory operations, and performance issues
- Supports multiple output formats (pretty, JSON, raw) and time-based filtering to isolate specific execution windows
- Includes four core workflows: quick debug of recent activity, deep-dive analysis of specific traces, session export with metadata, and error detection across multiple traces
- Requires
langsmith-fetchCLI installation and LangSmith API credentials via environment variables
LangSmith Fetch - Agent Debugging Skill
Debug LangChain and LangGraph agents by fetching execution traces directly from LangSmith Studio in your terminal.
When to Use This Skill
Automatically activate when user mentions:
- 🐛 "Debug my agent" or "What went wrong?"
- 🔍 "Show me recent traces" or "What happened?"
- ❌ "Check for errors" or "Why did it fail?"
- 💾 "Analyze memory operations" or "Check LTM"
- 📊 "Review agent performance" or "Check token usage"
- 🔧 "What tools were called?" or "Show execution flow"
Prerequisites
1. Install langsmith-fetch
pip install langsmith-fetch
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