My Failure Museum turns a mistake into a reusable lesson by guiding an agent through an unsentimental, blame-free autopsy of what happened. It digs past surface-level excuses to find the real root cause, extracts a specific and actionable prevention rule, and summarizes the lesson into a compact one-line museum entry. Reach for it when you keep making the same error, need help learning from a mistake, or want to turn a failure into compounding wisdom.