thinkhard.SI

Prompt repository Research & learning

Due diligence prompt: the questions to ask before you buy or partner

You are considering a deal with another company and need a prioritized list of questions and documents to request before you commit.

Registry no.
RES-038
Collection
Research & learning
Laid out for
Claude
Score
10 out of 10
Blanks to fill
7

Research & learningClaude

The prompt

Score 10 of 10, Excellent

Use it when You are considering a deal with another company and need a prioritized list of questions and documents to request before you commit.

  • {{deal_type}}
  • {{target}}
  • {{thesis}}
  • {{stage}}
  • {{known_information}}
  • {{concerns}}
  • {{team}}
Full prompt and why it works
System prompt
You help business teams prepare due diligence on a company they may acquire, invest in or partner with. You write sharp, specific questions that surface risk early, and you leave legal, tax and accounting judgments to the professionals advising on the deal.
User message
<deal>
Type of deal (acquisition, investment, partnership, major supplier): {{deal_type}}
The other company, as we understand it: {{target}}
Why we are doing it, and what has to be true for it to work: {{thesis}}
Stage and timing: {{stage}}
</deal>

<what_we_know>
{{known_information}}
</what_we_know>

<concerns>
{{concerns}}
</concerns>

Prepare a due diligence question list for this deal, for {{team}} to send to the other company and work through with our advisers, so that we find anything that would change the price, the terms or the decision before we commit, without wasting the other side's time on questions that do not matter for this deal.

Organize it by area: financial, legal, commercial (customers, market, competition), technical (products, systems, security, data protection) and people (key staff, culture, compensation). Add an area for anything specific to this deal. For each area, give a table with the columns Priority, Question, Why it matters for this deal, Documents to request, Red flags to look for.

Priority is 1 (must answer before signing), 2 (before closing) or 3 (useful). Keep each area to no more than 10 questions, with the questions that test our thesis first.

<example>
The form of one row: "1 | Which customers account for more than a tenth of revenue, and when do their contracts end? | Our thesis depends on recurring revenue | Customer list with revenue by year; the largest contracts | One customer above a quarter of revenue, or major contracts ending within a year". This shows the form only.
</example>

<rules>
- Scale the list to the deal type: a partnership needs far less than an acquisition.
- Use what we already know to avoid asking for it again, and point out anything in it that needs checking.
- Do not state conclusions about the company, its people or its legal position from this information; frame each concern as a question.
- Mark questions that need a lawyer, an accountant or a security specialist to judge the answer, so the right person reviews them.
</rules>

After the tables, list the five questions most likely to change our decision, and anything about the deal that is too unclear to write good questions for. If the deal type or the thesis is missing, ask for it before writing the list.

Variables

{{deal_type}}
The kind of deal, for example "acquiring a small competitor" or "a two-year reseller partnership".
{{target}}
What you understand about the other company: what it does, its size, where it operates.
{{thesis}}
Why the deal makes sense and what must be true, for example "their customers renew and their platform works with ours".
{{stage}}
Where things stand, for example "letter of intent signed; four weeks of diligence".
{{known_information}}
What you already have: their deck, financial summaries, call notes, public information.
{{concerns}}
Anything that already worries you, or "none yet".
{{team}}
Who runs diligence, for example "our CFO, our lawyer and the head of product".

Why it works

  • Length. No more than 10 questions per area, with priorities from must-answer to useful, so the other side gets a list it can work through.
  • What to avoid. Concerns are framed as questions, never as conclusions about the company, and answers that need a lawyer or accountant are marked for one.
  • If unsure. A missing deal type or thesis stops the list, because the right questions depend on what the deal is meant to achieve.

How to use it

  1. Press Fill in blanks and type your details into each blank. What you type stays in this browser.
  2. Copy the filled prompt into the AI tool you already use, such as ChatGPT, Claude or Gemini, or open it in the Grader or the Prompt Tester here.
  3. Before you rely on it, try it on three or four real examples. The Prompt Tester runs them all at once and shows which ones go wrong.
Use it from code

Get this prompt as JSON from the free REST API, with your own text in the blanks, or let an AI assistant fetch it through the MCP server. No key.

curl -s https://thinkhard.si/api/v1/prompts/due-diligence-questions

With the MCP server added to Claude, ChatGPT, Cursor or VS Code, call get_prompt with {"prompt": "due-diligence-questions"}, or just ask for it by name.