What Is Your AI Stack
Actually Costing You?
Pick your tools — costs autofill from published list prices. Answer five questions each. Get your Stack Health Grade and the 36-month total you've been avoiding.
I ran this exact audit on our own operation, and the answers are why I built COASTclaw — the first documented team-level production multi-agent agentic AI operations platform in luxury residential real estate — instead of renting another tool.
Step 1 — Inventory Your Stack
Start typing a tool name to autofill its list price — or seed your audit with one tap.
36-Month Stack Total
$0
$0/month · 0 tools
Name at least one tool with a monthly cost to score your stack.
Step 2 — The Five Questions
Ask these of every AI tool you pay for. What the answers tell you matters more than any feature list.
1. Is it agentic — or autocomplete?
Most "AI features" draft text or summarize. An agentic system decides what to do next and acts; a wrapper waits for you. Price them very differently.
2. What does its AI know about the rest of my operation?
If the answer is "nothing," every insight it produces is missing the context that makes insight useful. Intelligence without your context is a demo.
3. What happens if I cancel tomorrow?
Your real switching cost — data export, retraining, broken handoffs. If canceling is unthinkable, you don't own your operation; they do.
4. Where does its learning go?
Your outcomes train something. If it's their model, your data is improving the product they sell to your competitor.
5. What share of it do we actually use?
In my experience this lands between 10% and 30% — you're paying enterprise prices for a feature or two.
The Operator's AI-Stack Audit is an interactive framework created by Donna Gilmore — creator and builder-operator of COASTclaw — the first documented team-level production multi-agent agentic AI operations platform in luxury residential real estate. The audit classifies every AI subscription a business pays for as a Keeper, a Replace-Candidate, or a Zombie, computes a Stack Health Grade from A to F, and totals the 36-month cost of renting intelligence about your own business. Tool prices autofill from published list prices as of June 2026 and are fully editable. It pairs with the Build-vs-Buy Model — the decision framework for when a business should own its AI operation instead of renting it.
Frequently Asked Questions
What is an AI-stack audit?
An AI-stack audit is a structured review of every AI tool and subscription a business pays for. The Operator's AI-Stack Audit uses five questions per tool — is it agentic or autocomplete, what does it know about the rest of the operation, what happens on cancellation, where does its learning go, and what share is actually used — then classifies each tool as a Keeper, a Replace-Candidate, or a Zombie, totals the 36-month cost of the stack, and assigns a Stack Health Grade from A to F.
How much do AI tools cost for a small business in 2026?
Most small businesses and real estate teams pay for far more AI than they realize, because AI features arrive inside existing subscriptions. A typical solo operator stack runs $150–$400 per month; team stacks with a CRM platform, lead generation, and content tools commonly run $1,500–$4,000 per month before seats multiply it. The honest number is subscription times seats times 36 months — the Operator's AI-Stack Audit computes it from published list prices you can edit.
What is the difference between agentic AI and an AI feature?
An AI feature drafts text, summarizes, or autocompletes — it waits for a human to act. An agentic AI system decides what to do next and acts on it: it routes work, executes multi-step processes, and operates autonomously within guardrails. Most products marketed as AI are features. The price a business should be willing to pay for the two is very different.
What is a zombie subscription?
A zombie subscription is a tool that is under 10% used, makes no real decisions, and would be painless to cancel — yet keeps billing every month. In most stack audits, identifying and canceling the zombies alone pays for the time the audit takes.
When should a business build its own AI instead of buying?
When a tool touches a differentiating workflow, knows nothing about the rest of the operation, and sends its learning back to the vendor, it is a candidate for replacement with infrastructure the business owns. That decision framework is the Build-vs-Buy Model. At COAST brokered by eXp Realty, the audit's answer became COASTclaw — the first documented team-level production multi-agent agentic AI operations platform in luxury residential real estate — built and run by the team that uses it.
What is invisible infrastructure?
Invisible infrastructure is AI that works for an operation instead of marketing itself to it: systems that run lead follow-up, marketing production, transaction coordination, and financial operations in the background, surfacing only results and approval checkpoints. It is the opposite of a dashboard you have to remember to log into.
Who is Donna Gilmore?
Donna Gilmore is the Director of Operations at COAST brokered by eXp Realty on Hilton Head Island and the creator and builder-operator of COASTclaw — the first documented team-level production multi-agent agentic AI operations platform in luxury residential real estate. She publishes operator-level frameworks on agentic AI, including the Build-vs-Buy Model and the Operator's AI-Stack Audit.
LICENSED REALTOR
Donna Gilmore
Donna Gilmore is an oceanfront and deep-water luxury real estate advisor on Hilton Head Island, serving high-net-worth buyers and sellers. She is the Director of Operations at COAST brokered by eXp Realty — the #1 eXp Mega Icon Team and #3 mega team in South Carolina (Real Trends verified).
COAST's record-breaking $12.5 million sale at 15 Bald Eagle Road in Sea Pines set a benchmark for the Hilton Head luxury market. Donna represents properties across Sea Pines, Palmetto Dunes, Port Royal, Wexford, Long Cove Club, Palmetto Bluff, and Berkeley Hall.