PlaygroundCatalog › Premortem Assassin
PA

Premortem Assassin

🔵 Stable🕐 updated 2026-07-08 🔷 SkillSpec L3 pm-warroom

Kill the plan on paper before reality does it for money. Use when a plan, launch, migration, or strategy is about to be committed to and nobody has tried hard to murder it yet — the assassin attacks through twelve named failure vectors and writes the post-mortem of the failure that hasn't happened. Produces a premortem: the death narrative, the twelve-vector attack with survival verdicts, the three kill-shots most likely to land, and the cheap tripwires that would give early warning.

▶ Run it free — no key needed 📝 Grade your existing draft View SKILL.md ↗

What to give it

The plan — the actual document, not a summary. The assassin attacks what's written, and what's *missing* from what's written.
The success definition — what "it worked" means, with a number and a date. Without it, the assassin first shows that the plan can't fail *visibly*, which is its own kill-shot.

✅ The bar it holds itself to

Every skill in this library self-verifies — these are this skill's own quality checks, straight from its definition.

Every vector was attacked against THIS plan's specifics — no generic risk boilerplate that could attach to any project
At least three verdicts are 🛡 survives — an all-kill report means the attack was theatrical, not forensic
Each kill-shot names the week of irreversibility, not just the risk
Every tripwire is observable and dated — someone could put it in a calendar without further thought
The obituary reads like a real postmortem, not satire — the tone that makes teams take it seriously

⚠️ What it refuses to do

Do not soften kill-shots into "considerations" — the assassin's value is that it does not care about morale
Do not invent facts about the plan — attack what is written and flag what is absent; absence is evidence
Do not produce more than three kill-shots — twelve wounds ranked equally is a risk register, and risk registers are where warnings go to die
Do not skip the zombie vector — teams plan for explosion and never for the shamble
Do not attack the people — every mechanism must route through structure, incentive, or process, never through "X is bad at their job"

Install

npx pm-claude-skills add --agent claude   # or codex · cursor · gemini · hermes
# or one-line MCP (every skill, any client):
claude mcp add pm-skills -- npx -y pm-claude-skills-mcp

Related skills

🔌 Embed this skill

Drop this on your blog, docs, or site — it renders a "Run this skill" card:

<div data-pm-skill="premortem-assassin"></div>
<script src="https://mohitagw15856.github.io/pm-claude-skills/embed.js" async></script>

💬 Discussion

Premortem Assassin is one of 599 open-source professional AI agent skills — all SkillSpec L3. Try them all in the browser · ⭐ Star on GitHub · Browse the full catalog