Pasha and Olga were hosting a British afternoon tea for seven, and Olga would be doing the cooking. Pasha asked for an empty page first, to watch while he talked:

New project. Start a local Python server and build an HTML page that says "Hello, World!" and "Hello, Olga!". I'll just watch that page and talk to you, so push all your changes to the page.Pasha, to Claude

Then he began describing the party:

I'll narrate the facts of our tea party for seven people, all girls, and as I do, draw a picture of the table with everything we discuss. … Start with the table and the two tea containers; I'll be watching the page.Pasha, to Claude, lightly trimmed

There was no specification and no mockup. The app grew one spoken request at a time, while the decisions about food, tableware and timing were still being made.

From the first description, Claude drew the table from above with a teacup at each place and the two glass teapots in the middle, and kept a running list beside it: guests, teaware, teas, and a first shopping list.

• An oval first, with seven seats: the shape had not been said yet.
• Then a rectangle, two minutes later, with the seats corrected twice while Pasha talked it through with Olga.
• Two teas in two glass teapots: African Nectar, which they had, and Palais des Thés.

Correction: three seats on each long side and one at the head.Pasha, to Claude

Food was the worry: Olga had no helpers and had to make everything. Pasha listed the sandwiches they were sure of, asked what goes with roast beef, and asked for views.

View 2, food: only the sandwiches, each shown open and assembled; better, draw them on a plate I can rotate with the mouse.Pasha, to Claude

• Four platters on the table, then three views behind one button: the table, the food, the drinks.
• A 3D plate of finger sandwiches that turns with the mouse: smoked salmon, egg and salmon, shrimp and crab, roast beef with horseradish cream, and a fifth, chicken.
• Answers became the page: garnishes for each kind, how to cut fingers, where to find scones and clotted cream.

• Full screen, nothing scrolls: the view on the left; on the right a side panel of sections that open and close, which slides in and out and can be resized by dragging.
• Gold buttons top right: one to switch views, one to hide the panel. The page remembers what was open.
• Flip-card recipes: each sandwich has a card in the panel; click it and it turns over to short steps, with the garnish last.
• Bread and timing: a thin-sliced square loaf, as in Britain, and a schedule so the bread does not go soggy.
• The fifth sandwich changed three times: coronation chicken, a salad of roasted thighs, then chicken Waldorf from a rotisserie chicken.

When I see a sandwich, I can click it and it flips like a card: brief cooking instructions, garnishes included, on the back.Pasha, to Claude

Lay out plates, cups, knives and forks the way they do in Britain … Draw it in 3D, like the sandwiches, so I can turn and zoom the whole table.Pasha, to Claude, lightly trimmed

• Each place: a tea plate with a white napkin, fork on the left, a small knife on the right, cup and saucer above it.
• Camera buttons: Angle, Top and Seated, a switch to hide the guests, and the flat plan kept as a second drawing.
• Fixed along the way: the first showing stopped half drawn. The code used a shape this version of three.js, the 3D library, does not have. Simpler shapes fixed it within minutes.

Pasha told Claude what they had already bought, and the table was laid out again to match.

• Down the middle, mirrored: a bouquet, a tall three-tier stand, jam and clotted cream, the two teapots with milk, sugar and lemon, then the same again.
• Floating candles in glass cylinders, with pearls inside them under the water, and a few at their base.
• A slow turn: one round in about two minutes, tipping between a high view and a lower one, never under the table.
• The saucers were there but white on white; a gold rim made them show.

Animate the 3D table, slowly, like the sandwich plate turns, and only from attractive angles: never under the table.Pasha, to Claude

• A transcript of the conversation, timed from Pasha's first message. The first ways of asking for it were stopped by an automatic safety check; asked again more plainly, it went through.
• Screenshots that take themselves: a few seconds after each change, the server photographs every view in a hidden browser and keeps the ones that changed, numbered and timed. 115 in all.
• The earlier steps were collected from the screenshots Claude had taken while checking its work.
• Cameras remembered: each live update used to reset the 3D views. Now each camera keeps its angle, zoom and spin, and an update lands without a jump.

Put the screenshots in a subfolder called screenshots, numbered 1 to n, with a timeline saying when each was made, so I can map them to the transcript.Pasha, to Claude

• A fourth view, Plan: the day before and the party day, for a 6:30 PM start, as a checklist with ticks that are remembered; with music and small gift ideas.
• One shopping list per store, with tickboxes: Amazon, Publix, Whole Foods, Sam's Club, Walmart, then what to check at home. Each side-panel section belongs to one view.
• Olga · main cook, Pasha · helper: a name pill on every step, and filters for Everyone, Olga, Pasha, and Together for the steps that need both.
• Moved to the day before whatever could be: flowers, setting the table, the candles, Pasha's AI art on the TV. An hour to get ready at 4:00, with a nap for Olga only.
• Fixed along the way: the header buttons stopped responding in Pasha's window, until they were moved a little lower; and splitting the list by store deleted part of the page's script, which was restored from Claude Code's saved history of the file.

• A title: "Semantic Works: Tea Party for 7".
• One line under each view, centred: what it shows, and "drag to rotate · scroll to zoom".
• Cream for every view, and in Plan each day as a white sheet of paper, like a printout.
• Buttons centred across the view: the camera buttons on Table, the filters on Plan.
• Gold section headings in the side panel, with the five sandwich names in bold black so they stand out.

Background colours: Drinks and Plan have a white main view, but Table and Food are cream. …Pasha, to Claude, lightly trimmed

Let's animate the Drinks view and make it 3D.Pasha, to Claude

• A round side table with a white cloth, turning slowly like the others.
• The two glass teapots with steam rising from the lids; two red and two white bottles; a Coke.
• Champagne in an ice bucket, and two flutes with bubbles rising.

The chairs at the table: the back comes up to table height, and it's curved.Pasha, to Claude

The chairs were redrawn with a low curved back, level with the table top. The last request was a question about the sandwiches, answered on the page: cream cheese on both slices, edge to edge, to keep the bread dry.