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In productionProintermediateAI-assisted debugging

The AI's QoS fix is half right

Complete the QoS alignment the LLM started.

Pairs with Debugging ROS with AI in the loop in Use AI efficiently with ROS 2. Read the concept first, then diagnose it here.

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Operator report

The subscriber still gets nothing after the AI changed only reliability.

Ubuntu 24.04, ROS 2 Jazzy, rclpy/rclcpp, an LLM coding assistant + MCP

01

System boundary

Trace only the relevant path.

3 nodes
  1. 01publisher durability→
  2. 02QoS match→
  3. 03subscriber durabilityOUT
02

How this lab works

You diagnose it. No command list.

Open the repair workspace and gather your own evidence in a real terminal. No diagnostic commands are handed to you - finding the fault is the exercise. Stuck? Progressive hints unlock inside the workspace.

03

Verification

Pass more than the visible symptom.

4 checks
  • Durability matches
  • Latched data arrives
  • Hidden regression behavior
  • Root cause explanation