Buyer's Folder · Form CK · Rev. MMXXVI

Issued for

[ the homebuyer ]

Closing Kit

Three calculators for the homebuying process. Run the math yourself.

Download · install once closing-kit.plugin 14 KB · Free · MIT

One .plugin, one drag into Claude Desktop, all three calculators active. Companion to the Realtor AI Assistant — the agent's set.

Skill Identifier
01

Mortgage payment

mortgage-calc

Ask: “What's the monthly on a $425,000 house, 10% down, 6.75%, 30-year?”

Mortgage Payment Estimate Specimen — illustrative
Purchase price
$425,000
Down payment (10%)
$42,500
Loan amount
$382,500
Rate · Term
6.75% · 30 yr
ComponentMonthly
Principal & interest$2,481
Property taxes (est.)$443
Homeowners insurance (est.)$118
PMI (10% down · until 22% equity)$159
Total monthly (PITI + PMI)$3,201

What this estimate doesn't include: HOA dues, flood insurance if required, rate buydowns, lender credits. Add those before you sign anything.

02

Closing costs

closing-costs

Ask: “What will I pay at closing on this house?”

Buyer Closing Cost Estimate Specimen — illustrative
LineDescriptionAmount
A.Lender origination fee (1% of loan)$3,825
B.Appraisal$650
C.Credit report$60
D.Title insurance — owner's + lender's$2,150
E.Escrow / settlement$850
F.Recording & transfer fees$430
G.Prepaid taxes & insurance (escrow setup)$2,640
H.Per-diem interest (15-day cushion)$945
Estimated buyer closing costs$11,550
Down payment (from above)$42,500
Total cash to close$54,050

Local custom varies. Some states tax differently, some lenders bundle fees, some sellers cover a portion. The skill flags assumptions so you know what to verify.

03

Property comparison

property-compare

Ask: “Help me decide between these two — similar price, similar neighborhood, different houses.”

Side-by-Side Comparison Specimen — illustrative
Property A 1428 Oak Ridge Ln Property B 207 Mulberry Ave
Price$425,000$435,000
Estimated monthly$3,201$3,278
Square feet2,1401,890
Year built19981962
Lot0.18 ac · corner0.31 ac · quiet street
Roof age7 yrs (good)22 yrs (replace soon)
HVAC20192004 — likely 1 cycle left
School zoneLincoln · 8/10Lincoln · 8/10
Days on market461

What this is telling you: A is $10K cheaper, newer, and the systems have life left. B is bigger lot but you're buying a roof and an HVAC in the next two years — probably $20K. Days-on-market suggests B is overpriced. A unless you fight for B at $410K.

Install

One file. One drag.

Closing Kit ships as a single .plugin — a zipped Claude plugin folder, with the .plugin extension Claude Desktop recognizes. Download once, install once, all three calculators become available wherever you talk to Claude.

Download closing-kit.plugin 14 KB · Free · MIT
  1. i. Download the .plugin file above.
  2. ii. Drag it into Claude Desktop — or open Claude Desktop → Settings → Plugins, and select the file.
  3. iii. Ask the math. Claude picks the matching calculator and walks the numbers, plainly.

Free. MIT-licensed. No account, no API key, no upsell. The bundle is the artifact — the source plugin lives in a private workshop and is not part of the catalog.