Turn a mistake into a reusable lesson — a short, unsentimental 'here's what happened and the rule so it doesn't happen again' entry you can actually keep. Use when asked help me learn from this mistake, I keep making the same error, capture this lesson, or turn this failure into something useful. Produces an honest, blame-free autopsy of what happened, the real root cause (not the surface one), the specific rule or trigger that prevents a repeat, and a one-line entry for your growing 'failure museum' — because unexamined mistakes repeat and examined ones compound into wisdom.
Start a fresh conversation. Replace the highlighted placeholders.
Use my-failure-museum to turn [what happened] and [consequence] into a blame-free autopsy, root cause, prevention rule, one-line museum entry, and pattern check.
Required inputs
[what happened]
[consequence]
User-approved starter prompt based on a pinned source version; check current skill requirements before running. Task evidence ↗
SKILL.md
name: my-failure-museumdescription: "Turn a mistake into a reusable lesson — a short, unsentimental 'here's what happened and the rule so it doesn't happen again' entry you can actually keep. Use when asked help me learn from this mistake, I keep making the same error, capture this lesson, or turn this failure into something useful. Produces an honest, blame-free autopsy of what happened, the real root cause (not the surface one), the specific rule or trigger that prevents a repeat, and a one-line entry for your growing 'failure museum' — because unexamined mistakes repeat and examined ones compound into wisdom."
My Failure Museum
A mistake you don't examine is one you'll make again; a mistake you turn into a rule never costs you twice. This does the turning: a short, honest, blame-free autopsy of what went wrong, the real root cause underneath the obvious one, and the specific rule or trigger that stops the repeat — captured as a one-line entry for a growing collection. Over time, your failure museum becomes your hardest-won operating manual.
What This Skill Produces
The honest autopsy — what actually happened, blame-free (self-flagellation teaches nothing; analysis does)
The real root cause — the underlying reason, not the surface one ("I was busy" → "I don't build in buffer time")
The prevention rule — a specific, actionable rule or trigger that would have caught it, and will next time
The one-line museum entry — a compact, keepable lesson to add to your collection
A pattern check — whether this is a one-off or part of a recurring theme worth a bigger fix
Required Inputs
Ask for these if not provided:
What happened — the mistake or failure
The consequence — what it cost
Your read on why — your first explanation (we'll dig past it)
Has it happened before — to spot a pattern
Framework: Autopsy Without Blame, Extract The Rule
Examine, don't flagellate. Approach it like an investigator, not a judge — blame shuts down learning; curiosity opens it.
Dig past the surface cause. "I forgot" or "I was busy" is rarely the real cause — find the system or habit underneath ("no reminder system," "I over-commit").
Extract a specific rule. Convert the root cause into an actionable rule or trigger ("before saying yes, check the calendar"; "always CC myself"). Vague resolutions don't work; specific rules do.
Write the one-liner. Compress it into a single memorable entry for the museum — short enough to actually reread.
Check the pattern. If this echoes past failures, name the recurring theme — that's the higher-leverage fix.
Output Format
Failure: [what happened] · cost: [consequence]
Autopsy (blame-free): [what actually happened].
Real root cause: [the underlying system/habit, past the surface].
Prevention rule: [specific, actionable rule or trigger].
📓 Museum entry (one line): "[compact lesson]."
Pattern? [one-off / part of a recurring theme → the bigger fix].
Quality Checks
The autopsy is honest but blame-free
It digs past the surface cause to the real one
The prevention is a specific rule/trigger, not a vague resolution
It produces a compact, keepable one-line entry
It checks whether this is part of a pattern
Anti-Patterns
Self-flagellation dressed as reflection.
Stopping at the surface cause ("I was careless").
A vague resolution ("I'll be more careful") instead of a rule.
Missing the recurring pattern.
Example Trigger Phrases
"I messed up — help me actually learn from it."
"I keep making the same mistake. Why, and how do I stop?"
"Turn this failure into a lesson I'll remember."
"Do a blame-free post-mortem on my screw-up."
"Add this to my list of lessons — what's the rule?"