We delivered an AI Stage Manager for a downtown Charleston walking-tour guide who works the peninsula alone from a Harleston Village single house -- one that reads every night's tide and moves the next morning's tour to dry ground before anyone wakes, reschedules and refunds small parties on its own, and runs her son's carpool, her knee therapy and the family's dinners from the same calendar.

The harbor gauge read 7. 6 feet at 8:52 on a Saturday morning last November, and by nine there were eight inches of salt water standing in Market Street, a block from the corner where nineteen people from four states were waiting for her. She had checked the tide table the night before. She had read it wrong.

She is fifty-three, has walked visitors around the peninsula since 2009 -- 412 tours last year, a little over 5,100 guests -- and that was the morning she decided she was finished being the person who checks. Her bookings came from five directions: her own website, two booking platforms, the concierge desks at three hotels on King and Meeting that text her when a guest wants something private, and a cruise line's shore-excursion office that sends a spreadsheet three weeks before each ship. Tide and weather could rearrange any of it. And all of it shared one calendar with the life she runs from the second floor of a single house on Bull Street in Harleston Village: her husband's rotation with the harbor pilots, which can call him to a ship at two in the morning; their fifteen-year-old's crew practice and the carpool she trades with a family on Montagu Street; physical therapy twice a week at MUSC for the knee she had repaired in March; the residential parking permit; and dinner.

She walked nine miles a day and spent her evenings as her own dispatcher. In May we set up Gemini on her laptop, under her own Google account, with Spark running the standing jobs, connected to her email, her calendar and the family's, her website's booking page, both platforms' partner dashboards, her bank feed and a spreadsheet of her routes. Then we handed it the whole list. Every evening at eight it reads the next day's tide prediction for the harbor and the forecast.

Anything above seven feet inside a tour window, and it moves the meeting point from the corner of Market to Washington Square, reorders the route so the first three stops are dry, and sends every guest the new spot and a map through whichever channel they booked on. Lightning in the forecast or a heat index over 105, and it slides the afternoon tour to seven in the evening and offers each party the swap or a full refund. Every new booking is checked the moment it lands against her cap of twenty, the days she has marked open, the therapy appointments and the carpool weeks. Each morning it matches both platforms' payouts against the tours she actually gave and moves a quarter of every deposit into the tax account.

When one of her husband's pilot calls posts to the family calendar overnight, it works out what that does to the next day -- who drives, who is home for dinner -- and fixes it. She drew the line herself. It reroutes, reschedules and refunds any party of eight or fewer on its own. It never cancels a private group or a cruise block without her, never confirms a tour on a day she has not opened, and never answers a guest's question about the city's history.

That part is the job, and it is hers. On a Thursday night in late September the eight o'clock check found a 7. 4-foot tide at 8:40 the next morning and a nine o'clock tour of eighteen. By 8:06 every guest had the Washington Square meeting point, the two concierges who had sent guests knew, and her 7:30 therapy appointment had moved to the afternoon so she would not be crossing the low end of Calhoun at high water.

At 2:20 a. m. her husband was called to bring a container ship up the Cooper. The AI saw the call land, moved their son's ride to the Montagu Street family -- it was their week to owe one -- and cut the dinner order from three plates to two.

She slept through all of it. She found out at six, over coffee, the way she does every morning: one message listing what was already done and, underneath it, what is hers. That day there was one thing -- a cruise line asking whether she could split sixty passengers into three groups for a December port call. That is a question about her knee and her voice, so it waited.

Since May no tour of hers has started in standing water. The AI has moved thirty-one tours for tide or weather and 236 guests with them; four asked for refunds. It caught $1,380 in platform payouts that never arrived. She has given forty more tours this fall than last and has not missed a therapy appointment.

"The tide still comes up Market Street," she said. "I just don't carry it around anymore."