The FNMA AI Lender Letter kit, run as a Project + Skill
Fannie Mae’s Lender Letter LL-2026-04 takes effect August 6, 2026. It requires every seller/servicer to govern its use of AI and ML, name an owner, and be ready to show its work. Use the Skill in this kit to produce an AI System Inventory, an AI System Risk Assessment, and an AI Governance Policy. Download the skill here.
Set it up (with the kit)
-
1 Turn on Code execution & install the Skill
Settings → Capabilities → turn on Code execution. Then Settings → Customize → Skills → + → Upload a skill → pick
fnma-ai-lender-letter-skill.zip→ toggle it ON.Need to see exactly where these buttons are? Follow the screenshot-by-screenshot guide to installing a Skill.
-
2 Start a new Project
Name it FNMA AI Lender Letter. Open a new chat window in the Project and upload roughly 75 pages of policies and procedures (100-page limit per chat). Repeat until all your policies and procedures are uploaded to chats in your FNMA AI Lender Letter Project.
-
3 Create your AI System Inventory
In your FNMA AI Lender Letter Project, paste the prompt below into every chat you uploaded your P&Ps into:
Inventory this batch for the FNMA AI lender letter.
Running the prompt invokes the Skill, which has the FNMA AI Lender Letter regulatory requirements hard-coded in it. Repeat in a fresh chat for every batch until all are done.
-
4 Reconcile — fill the gaps
Step 3 automagically extracts any AI-relevant software, processes, and workflow found in the P&Ps you inventoried — and the Skill can research specific systems and software to understand their AI capabilities. Open a new chat and upload any documents, contracts, or vendor lists you know are applicable to the FNMA AI Lender Letter. Then paste:
Consolidate the findings from all my inventoried batches into one working list. Then show me the gaps — including the AI the P&Ps can't show (embedded vendor AI, shadow/employee AI, tools added since the P&Ps were written). I'm giving you our vendor inventory, contracts, and app list in the project — cross-reference them, surface any system no P&P showed, and validate the owners. Work through the high-risk gaps with me, then save a reconciled working-inventory.md to the project folder.
-
5 Let AI help you make your AI Governance Policy
Open a new chat in the FNMA AI Lender Letter Project, then copy and paste the below:
Build the master AI System Inventory, Risk Assessment, and AI Governance Policy from working-inventory.md in the project folder. List every open CONFIRM grouped by who I need to ask and what to ask. Save the master policy as a file in the project folder.
-
6 Push your AI Governance Policy to your P&Ps
Back in each chat that contains P&Ps → paste:
Update these P&Ps to match the master AI policy in the project folder.
-
7 Change log (Appendix A)
New chat → paste:
Make the Appendix-A change log for the master AI policy and every P&P we changed.
That’s the whole run: inventory each batch → reconcile (where your vendor list, contracts, and app list go in, and the undocumented AI gets caught) → one synthesis chat → realign each batch → change log. Every output is a working draft for your review — not legal advice.
Setting up the Project: a few rules that make it work
This structure is good general practice for keeping P&Ps current, and it’s especially strong on a job as broad as the FNMA AI letter. A handful of habits keep it clean:
- If you can, one P&P (or themed batch) per chat. Keep each chat focused so it does a thorough job and emits a clean FINDINGS block. If a single P&P runs over ~100 pages, split it across multiple chats rather than starving the context.
- Inventory first, in its own chats. Then a separate gap-analysis chat. Finish scanning all batches before you reconcile — the gap analysis needs the whole picture to tell you which systems no policy documented.
Get the kit
The full bundle: the installable Skill, the verbatim rule kit, the five-stage workflow, and a screenshot Visual Guide. We’re giving it away while we’re early — just enter your email below to download.
You’re in. Here’s the kit.
⬇ Download the full kit (.zip)
Start with START-HERE.md inside the zip — install the Skill, make a Project, run the five moves.
Your email is stored only to send the regulation-change alerts you asked for. Reply to any alert to unsubscribe. The kit produces working drafts for compliance/attorney review — not legal advice.