Debugging

Pick the most likely cause when training loss drops for 1k steps, plateaus for 2k, then drops again at step 3k

Loss spikes the moment warmup ends: which hyperparameter is the prime suspect?

Pick the three first things to check when LoRA training loss sits flat from step 0

Your MCP server builds but the host can't see its tools. What's the first debugging move?

Design an observability and debugging system for a production multi-agent application with 5+ collaborating agents.

A chatbot team reports TTFT P99 jumped from 300ms to 1.4s overnight. Which root cause is most likely?

What traces and metrics do you need to debug a P99 TTFT regression in production LLM serving?

Spot the error in this Claude Desktop MCP server configuration

Spot the bug revealed by JSON-RPC tracing in this MCP exchange

What is a common bug that JSON-RPC tracing reveals in MCP server implementations?

Spot the error in this MCP JSON-RPC request

How would you use mcp-inspector to debug a tools/call that returns unexpected output?

Explain the LLM vs runtime split in an agent and why the distinction matters for debugging