postmortemlisted
Install: claude install-skill OpenSIN-AI/OpenSIN-Skills
# /em:postmortem — Honest Analysis of What Went Wrong
**Command:** `/em:postmortem <event>`
Not blame. Understanding. The failed deal, the missed quarter, the feature that flopped, the hire that didn't work out. What actually happened, why, and what changes as a result.
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## Why Most Post-Mortems Fail
They become one of two things:
**The blame session** — someone gets scapegoated, defensive walls go up, actual causes don't get examined, and the same problem happens again in a different form.
**The whitewash** — "We learned a lot, we're going to do better, here are 12 vague action items." Nothing changes. Same problem, different quarter.
A real post-mortem is neither. It's a rigorous investigation into a system failure. Not "whose fault was it" but "what conditions made this outcome predictable in hindsight?"
**The purpose:** extract the maximum learning value from a failure so you can prevent recurrence and improve the system.
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## The Framework
### Step 1: Define the Event Precisely
Before analysis: describe exactly what happened.
- What was the expected outcome?
- What was the actual outcome?
- When was the gap first visible?
- What was the impact (financial, operational, reputational)?
Precision matters. "We missed Q3 revenue" is not precise enough. "We closed $420K in new ARR vs $680K target — a $260K miss driven primarily by three deals that slipped to Q4 and one deal that was lost to a competitor" is precise.
### Step 2: The 5 Whys — Done Properly
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