Rails Debugger

What it does

The rails-debugger skill allows AI agents to interactively debug Ruby on Rails applications. It enables stepping through code, inspecting variables, and evaluating expressions within a running Rails environment. This facilitates identifying and resolving issues in complex backend systems.

When to use it

• Troubleshooting failing tests: Use the debugger to pinpoint why specific test cases are failing by examining state at different points in execution.
• Debugging unexpected behavior: Investigate unusual application behavior, such as incorrect data processing or rendering errors.
• Understanding unfamiliar codebases: Step through existing Rails code to understand its logic and flow.
• Profiling performance bottlenecks: Identify slow database queries or inefficient code sections by observing execution time and resource usage during debugging.

Key capabilities

• Interactive debugging session
• Stepping through code line-by-line
• Variable inspection
• Expression evaluation

Example prompts

• "Debug the users#create action in my Rails app."
• "Step through this failing test case and show me the values of params."
• "Inspect the local variables within the Product.find(id) method."

Tips & gotchas

Requires a running Ruby on Rails application to be effective. The agent needs appropriate permissions to access and modify the application's code and state during debugging.