Grok 4 cracked a Docker debugging puzzle that o3 missed
lldb behaved differently through Python in Docker than on their own Linux box. Grok 4 traced it to how address sanitizer works in each environment. They're impressed so far.
Done withGrokSpotted· by HN user briandw· Oct 18, 2026
Result Traced to address sanitizer differences
“Grok 4 helped me solve a problem with inconsistent behavior in running lldb via python.”
Spotted: found in the wild. Details are as reported by the source above and have not been independently verified.
What they did
Running lldb through Python behaved inconsistently between Docker and their local Linux machine. They asked Grok 4 to help solve it.
How it went
Grok 4 traced the problem to differences in how address sanitizer works in the two slightly different environments. o3 hadn’t caught it, and they say they’re impressed so far.
Try it yourself with Grok
My [tool] behaves differently in [environment A] and [environment B]. Here are the commands, versions and output from both: [paste]. List every difference between the two environments that could explain it, including compiler flags, sanitizers and library versions, and give me a quick test to confirm or rule out each one.
A starting prompt written by Agents in the Wild. Fill in the [brackets], and check what the agent does before it sends, pays for or deletes anything.
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