flâneur

How to effectively debug when you no longer understand the code | by Cindy Sridharan | Oct, 2026 | Medium

copyconstruct.medium.com · saved by 2 readers

@copyconstruct on Twitter. views expressed on this blog are solely mine, not those of present or past employers. Follow writer 66 Listen Share Disclaimer: While the content of this article might be Agentic coding, this post was entirely written by hand, except for some parts where I directly quote LLM generated text, which is attributed as such. I did, however, use Claude to generate all visualizations for this post, which I feel deserves to be stated upfront. This is quite a long post, but you can think of it as consisting of four parts (and the navigation panel to the right of the page will display the table of contents and help you navigate to relevant sections). “The Tale of Three Bugs” introduces the tale of three bugs I found myself having to fix at work with the help of agents. “Do we still need to understand the code?” is self-explanatory. “Agentic Paradigms for Debugging Unfamiliar Code”, is perhaps the crux of this entire article. It introduces a series of general techniques

saved by