Run a quick premortem on a plan
Works with ChatGPT · Claude
Imagine the plan failed, then prevent the top causes now.
The problem
Optimism hides the risks that later sink a plan.
What this skill does
AI imagines failure and lists the likeliest causes plus preventions.
When to use it
- Use before committing to a plan or launch.

Juni’s tip
Juni says: it's cheaper to prevent the failure you imagined than the one that surprises you.
The prompt
Try it live
Fill in the blanks — your ready-to-use prompt builds as you type.
Weak vs. better
what could go wrong
Premortem this plan: [plan]. Assume it's six months later and it failed. List the 5 most likely causes, rank by likelihood and impact, and give one preventive action for each I can take this week.
Why this works
Imagining failure surfaces risks that a hopeful forward-looking plan glosses over.
Practice task
Take a plan you're about to start and run a five-minute premortem.
Self-check
- Failure causes are specific to this plan
- Each risk has a concrete prevention
- Risks are ranked by likelihood and impact
Common mistakes to avoid
- Listing generic risks that fit any plan
- Naming risks with no prevention
- Only imagining mild problems
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