The Problem Nobody Talks About
Here's a number that should make every business owner uncomfortable: 70-80% of leads who ask for a quote never book. Not because the price is wrong. Not because the service is bad. Because life gets in the way. They get busy. They forget to reply. The message gets buried.
Most businesses treat these leads as dead. They asked for a quote, you sent it, they went quiet — move on. But those leads aren't dead. They're warm. They expressed interest. They gave you their phone number. They opened a conversation. They just need someone to keep it warm.
That someone is Dev.
What Dev Actually Does
Dev is not a chatbot. Dev is not an auto-responder. Dev is an autonomous follow-up agent that scans the CRM every 30 minutes, finds leads who have gone quiet, and sends them a personal, context-aware SMS based on exactly where they are in the sales cycle.
When a lead asks Steve (the sales agent) for a quote and then goes silent, the clock starts. Dev has one job: get them back.
The 4-Stage Nurture Sequence
| Stage | Window | Message Type | Example |
|---|---|---|---|
| Nudge | 4–24 hours | Soft check-in | "Hi this is Dev from My Air Con Care, your conversation got sent to my desk. Just checking you got the quote ok? Any questions?" |
| Discount | 24–72 hours | Value offer | "Hey, still keen? Just wanted to let you know we've got a $30 off winter special running — happy to lock that in if you're interested." |
| Article | 3–7 days | Educational | "Came across this and thought of you — worth a read if you've got 2 minutes. Turns out dirty air cons can cause long-term lung damage." |
| Monthly | 7+ days | Stay on radar | "How's things? Still need that air con sorted? No pressure — just making sure you're looked after." |
Dev Never Stops
Unlike a human salesperson who gives up after 2-3 attempts, Dev follows up forever — or until the lead books, says "stop," or converts. The monthly nurture stage keeps leads warm indefinitely. Every message is personal. Every message references their actual conversation. And every message costs fractions of a cent to send.
The Engineering
Scanner — Finding The Right Leads
Dev's scanner runs every 30 minutes (or when the queue is empty) and queries the CRM for contacts matching three categories:
Each lead gets a DEV job card — separate from Steve's cards — that tells Dev exactly what stage they're at and what message type to send. The card includes the full conversation history so Dev can reference their actual situation.
The 5 Safety Checks
Before Dev can even think about drafting an SMS, Gate 1 runs five checks against every contact:
| Check | What It Verifies | On Failure |
|---|---|---|
| 1. DNC | Contact is not Do Not Contact, blocked, or bad number | Delete queue row permanently |
| 2. Active Booking | Contact has no hold or confirmed booking | Skip — they're already booked |
| 3. Steve Queue | Contact is not being actively handled by Steve | Skip — don't interfere |
| 4. Needs Date | If contact needs a date offered, route to Anna instead | POST to Anna API, delete row |
| 5. Outbound Guard | 48-hour minimum between outbound messages (2h for hot nurture) | Skip — respect the window |
Separation of Concerns
Dev is deliberately limited. He never quotes prices (that's Steve's domain). He never offers dates or time slots (that's Anna's domain). If a lead needs a date, Dev outputs FLAG_FOR_ANNA instead of a draft, and the system routes the lead to Anna for a slot offer. If a lead replies with a booking question, Steve takes over.
This separation means Dev can never break the business. He can't double-book. He can't misquote. He can't spam an active customer. He can only do one thing: keep warm leads warm.
The Numbers That Matter
Here's the math. A split system clean is $250. A ducted clean is $350+. If Dev converts just 2 extra leads per month that would have otherwise gone cold, that's $500-700 in revenue — for a system that costs approximately $0.002 per follow-up SMS (Claude API + SMS delivery).
The ROI isn't a percentage. It's a multiplier.
The Real Maths
If 200 people a month ask for a quote and 70% go quiet (140 leads), and Dev converts just 5% of those (7 extra bookings at $250 each), that's $1,750/month in recovered revenue — from a system that costs under $100/month to run. That's not marketing spend. That's revenue that was already in the database, just never followed up.
The Bootstrap — How Dev Thinks
Dev's entire identity is defined in 4 lean Markdown files — 3,086 bytes total. No code changes required to modify his behaviour. Update the markdown, restart the container, and Dev has new rules.
Actual Drafts From Live Testing
"Hi Georgia, Dev from My Air Con Care — your chat got sent to my desk. Saw you were sorting bills when we last spoke, hope that's all worked out! Still keen on the air con? No rush, just checking in."
"G'day Jayde, it's Dev from My Air Con Care. Curran's Hill is sweet, we cover that area. You still keen to get your ducted system cleaned?"
"Hey Fazil, it's Dev from My Air Con Care — your chat landed on my desk. Saw you were asking about getting your split system done in Blacktown. Still interested?"
Every draft references the contact's actual suburb, actual system type, and actual conversation context. No templates. No merge fields. No "Dear [Name]." Just an AI agent who read the conversation and responded like a human.
Infrastructure — Separate Channel, Separate Security
Dev runs in his own Docker container with his own bootstrap, his own token locker channel (port 5559, separate from Steve's 5558), his own curfew valve, and his own queue table. If Dev's container crashes, Steve and Anna are unaffected. If Steve's token locker is compromised, Dev's channel is still secure.
The Lesson For Any Business
Most businesses spend their money on the wrong thing. They buy ads to get new leads while 140 warm leads sit in their database with no follow-up. They pay receptionists to answer the phone but not to re-engage the people who called last week and went quiet.
Dev flips that equation. The real money isn't in the first message. It's in the second, third, and fourth.
The follow-up desk is where the margin lives. It's the difference between a $250 job that books and a $250 job that evaporates because the customer got busy. It's the lead who asked for a quote in May, forgot to reply, and would have booked in June if someone just checked in.
Dev never forgets. Dev never gets busy. Dev never decides a lead is "probably not interested" and stops trying. Dev follows up at 4 hours, 8 hours, 24 hours, 3 days, 7 days, and every month after that — forever — until the lead books or says stop.
And it costs less than a cup of coffee per month to run.
Magic Cue Systems — Autonomous Agentic Technology
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