Will It Vibe?cd used inside RUN instead of WORKDIR
Part of Architecture & Best Practices, which counts for 15% of the overall score. When this check fires it deducts 4 points from that category, once per scan, no matter how many places it turns up.
What it detects
A cd inside RUN only affects that one layer, so the directory change is easy to get wrong. WORKDIR sets the directory for every following instruction. Heuristic.
Why it matters
A cd inside a RUN only changes the directory for that single command, so following instructions still run from the previous WORKDIR. It is easy to write a RUN that appears to change directory but does not for later steps. This is a heuristic.
How to fix it
Use a WORKDIR instruction to change directory persistently instead of cd, since WORKDIR applies to every following instruction. A cd is fine only inside a single RUN when chained with && for one command sequence.
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