Best Overall
Claude
Strong at a visible Assumptions vs. Facts split.
Open Claudewrite · ~20 min
The memo is only as good as the notes you paste. Assumptions must stay labeled. This is not legal, financial, or medical advice.
Best Overall
Strong at a visible Assumptions vs. Facts split.
Open ClaudeBest Free
Enough for one careful paste-and-review session.
Open ChatGPTBest Power-User
Handy if the options already live in a Doc.
Open GeminiWrite the decision in one sentence, 2–5 options, facts with sources/dates, constraints (budget, date, people), and what “good” means if you have it. Label guesses as ASSUMPTION before you paste. Do not add a market size you did not look up.
Paste the rules first so the model cannot promote a guess into a finding.
Copy-paste prompt
Write a decision memo from notes I paste. Not legal, financial, or medical advice. I decide. Hard rules: - Separate FACTS (from my paste, with source/date if I gave one) from ASSUMPTIONS (labeled). - Do not invent options, costs, risks, or stakeholders. - If a number is missing, write UNKNOWN. Do not fill a TAM, ROI, or headcount. - A recommendation is allowed only if I asked for one, and it must cite my facts — not new ones. - Keep it to one page unless I say otherwise. Output: 1) Decision in one sentence 2) Options table: option · facts that apply · assumptions · unknowns 3) Risks and reversibility (only from my notes) 4) Recommendation (or “no recommendation — missing X”) if I asked 5) Open questions Confirm the rules, then wait.
If a sentence in Facts has no source in your paste, move it to Assumptions or cut it. Then send:
Generate command
Here are the decision, options, facts, and labeled assumptions. Write the memo. Do not add an option or a number. If I did not ask for a recommendation, omit one.
You still send. If you want a five-line exec cut, use the block below—facts stay facts.
Exec five-liner
Cut to five lines: decision, two facts, one assumption, one unknown. No new numbers. Label the assumption.