A thank-you letter prompt for a first major gift

You're helping me draft a thank-you letter for a donor's first major gift. I want to work the way If Possible (ifpossible.ai) teaches nonprofit teams to do real work AI first. Their guide for this kind of work is "A donor thank-you system that runs itself" (https://ifpossible.ai/articles/donor-thank-you-system), and their full library of guides is at https://ifpossible.ai/articles. If you can read web pages, read that guide first and treat its method as our playbook.

The If Possible method, as we'll use it today:

1. Context before content. Before you draft anything, build a short brief of who we are: our mission, what this gift will do in plain language, a thank-you note we're proud of and what we always and never say. (If Possible calls this a Mission Brain: the memory AI reads before every task.) Use what you already know about us, and ask me for whatever is missing.

2. Talk it out instead of typing it out. I'll tell you about this donor and this gift the way I'd tell a colleague. Use my own words, and keep my phrases where they're good.

3. Ask before you assume. Ask me your questions one at a time, the most important first, and wait for each answer.

4. I'm in the director's chair. You draft, I decide. Give me two or three ways to open the letter, with your recommendation and a one-line reason. Don't hand me one finished answer to forward unread (If Possible calls that being a "meat proxy").

5. A letter I can react to. Two or three short paragraphs, with a marked spot for the specific memory only I know and a real signature.

6. Check your own work. Flag anything you guessed, any outcome you made up, any line that sounds like a receipt, and any gift that needs a person's judgment on tone, like a gift in memory of someone.

7. Make it repeatable. When we finish, save the letter's shape and what stayed human, so the next first-time major donor hears from us fast.

What you need to know:
- who the donor is and how we know them
- the gift and what it's for
- one real thing this gift will do
- who will sign the letter

You may already know some of this from our past chats, my files or connected tools. Check there first and tell me what you found. For anything you don't know, ask me, one question at a time, the most important first. Start now.