The pre-mortem: find how your plan fails before it does
Hands the model a plan and asks it to write the post-mortem for a failure that hasn't happened yet. Surfaces the risks your team is too invested to name out loud.
For when the date won't move. Sorts the plan into what ships, what waits, and what quietly gets cancelled — and names what breaks for users in each case.
The date is fixed and the scope is not going to fit. SCOPE: {{SCOPE}} DEADLINE: {{DEADLINE}} WHO'S ACTUALLY AVAILABLE: {{CAPACITY}} Produce: **1. The spine.** The smallest set of items that still delivers a coherent experience — something a user could complete end to end without hitting a dead end. Not the highest-value items; the ones that make the others make sense. **2. Three buckets.** Sort everything else into: *ships if it goes well*, *explicitly deferred*, and *quietly cancelled*. Be willing to put things in the third bucket — a plan where nothing is cancelled is not a cut. **3. What breaks.** For each deferred and cancelled item, one sentence on what a user cannot do, and who will notice first. **4. The conversation.** What I have to tell each stakeholder, in their terms, including the one who will be angriest and why they are not wrong. **5. The tell.** The specific signal, two weeks out, that even the spine is not going to make it. Rules: - Do not propose adding people. Do not propose moving the date. - Do not suggest "reducing polish" as a cut. Name the actual thing that goes. - If the spine still does not fit the capacity I gave you, say so directly and say what a smaller coherent product would be.
Tools for this prompt
Where the input below comes from. The ones marked needed change the output a lot — fallbacks for each are further down.
This prompt is only as good as what you feed it. Web search covers anything public — these are the inputs it can't reach.
The actual scope, with estimates, rather than the version in your head.
Don't have it: Ask the user to paste their list; note it may be less complete than the tracker.
The same at larger companies.
Don't have it: Ask the user to paste their list instead.
Only tools that web search cannot replace are listed. Anything public — reviews, job ads, papers, salary data — an agent can already fetch, so it is not listed here. No paid placements or affiliate links; if that changes, this line will say so.
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Paste this into ChatGPT, Claude Code, Codex, Cursor, or whatever you use:
Install the the-scope-cut skill globally from https://promptsbuddy.com/prompts/the-scope-cut/skill.md.claude/skills/the-scope-cut/SKILL.md
---
name: the-scope-cut
description: "For when the date won't move. Sorts the plan into what ships, what waits, and what quietly gets cancelled — and names what breaks for users in each case. Use when the user asks for help with product tasks like product, planning, scope."
license: CC-BY-4.0
metadata:
source: https://promptsbuddy.com/prompts/the-scope-cut
author: "Lena Fischer"
version: "1.0"
---
# The scope cut that still ships something real
For when the date won't move. Sorts the plan into what ships, what waits, and what quietly gets cancelled — and names what breaks for users in each case.
## Inputs to collect first
Ask the user for anything below that they have not already given you. Do not
invent values for these.
- `SCOPE` — Everything currently in the plan. A bulleted dump is fine. (e.g. Paste the epic list or the PRD's requirements section.)
- `DEADLINE` — The fixed date and what makes it fixed. (e.g. March 14 — it's tied to a conference keynote, so it genuinely cannot move.)
- `CAPACITY` — Who is actually available, honestly, including partial allocations. (e.g. Two engineers full time, one designer half time, and me at maybe 30%.)
## Tools this works with
Do not require any of these. If one is unavailable, use the stated fallback and
say which input is missing rather than inventing it.
- **Linear** — The actual scope, with estimates, rather than the version in your head.
- Without it: Ask the user to paste their list; note it may be less complete than the tracker.
- https://linear.app/
- **Jira** — The same at larger companies.
- Without it: Ask the user to paste their list instead.
- https://www.atlassian.com/software/jira
## Instructions
The date is fixed and the scope is not going to fit.
SCOPE:
{{SCOPE}}
DEADLINE: {{DEADLINE}}
WHO'S ACTUALLY AVAILABLE: {{CAPACITY}}
Produce:
**1. The spine.** The smallest set of items that still delivers a coherent
experience — something a user could complete end to end without hitting a dead
end. Not the highest-value items; the ones that make the others make sense.
**2. Three buckets.** Sort everything else into: *ships if it goes well*,
*explicitly deferred*, and *quietly cancelled*. Be willing to put things in the
third bucket — a plan where nothing is cancelled is not a cut.
**3. What breaks.** For each deferred and cancelled item, one sentence on what
a user cannot do, and who will notice first.
**4. The conversation.** What I have to tell each stakeholder, in their terms,
including the one who will be angriest and why they are not wrong.
**5. The tell.** The specific signal, two weeks out, that even the spine is
not going to make it.
Rules:
- Do not propose adding people. Do not propose moving the date.
- Do not suggest "reducing polish" as a cut. Name the actual thing that goes.
- If the spine still does not fit the capacity I gave you, say so directly and
say what a smaller coherent product would be.
## Notes from people who use this
- 'Quietly cancelled' is the bucket that matters. Deferring everything is how backlogs become fiction.
- Section 4 is what makes this shippable politically — a cut nobody has been told about isn't a cut.
- Run it before you're behind, not after. It reads as planning in January and as panic in March.
---
The scope cut that still ships something real · by Lena Fischer · v1.0
From PromptsBuddy — https://promptsbuddy.com/prompts/the-scope-cut
Licensed CC BY 4.0.
Every prompt is also available at /prompts/the-scope-cut/skill.md — see all install options.
Prioritisation frameworks rank by value and produce a spine full of holes — five high-value features that together don't let anyone finish a task. Asking for the smallest coherent set produces something shippable, which is a different question from the one RICE answers.
Teams defer rather than cancel because deferring avoids the conversation. Two quarters later the backlog is a graveyard nobody trusts. Forcing a cancelled bucket makes the decision real and, more importantly, makes it communicable.
Hands the model a plan and asks it to write the post-mortem for a failure that hasn't happened yet. Surfaces the risks your team is too invested to name out loud.
Front-loads the one thing that changed, states what's at risk without hedging, and makes the ask explicit — so the person who reads only the first line still gets it.