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question: when did you stop reading files first question: when did you stop reading files first

Not a trick question.I realized recently that my first step with a new repo is no longer opening random files and scrolling until something clicks. I now look for a summary, a map, something that tells me where I am before I move. I did not ddecide to do this. It just happened after using tools that give you context upfront, including Qoder.

wondering if this is just me getting older and more impatient, or if other people noticed the same shift. Do youstill dive straight into code, or do you want orientation first now


A refactor that broke auth because of an implicit contract A refactor that broke auth because of an implicit contract

I broke auth last week with a refactor that looked harmless.

The issue was not logic, it was an implicit contract between middleware and downstream code that was never written down.

// before

(req as any).userToken = raw.startsWith("Bearer ")

? raw.slice(7)

: "";

// downstream

const token = (req as any).userToken;

if (!token?.startsWith("uid:")) return null;

I refactored auth to store a structured object instead of a string and missed one code path that still read userToken
Tests passed. A background worker silently treated users as anonymous. Hello 401s.

The fix was boring: make the contract explicit and fail loudly instead of defaulting to empty values.This was a good reminder that most refactor bugs are not about code quality, they are about undocumented assumptions. How do you usually surface these contracts early in Express style codebases?