Developer's skill validator was silently inverting every pass and fail result

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A developer building a skill validation tool discovered it was producing completely inverted results — flagging broken skills as healthy and good ones as faulty. The bug went undetected initially because the tool always returned an answer, making it appear functional. Collaborators exposed the flaw by deliberately feeding in known-broken skills and observing the incorrect verdicts. A logic error was causing the validator to read its own output in reverse, and it took roughly two days of systematic testing to isolate and fix. The experience led the developer to reflect that reliable, unglamorous tooling often delivers more lasting value than visually impressive but untested work.

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