Accordion

A list of sections that open and close, one click each.

Input (Accordion)	What it does
Items	Array of { Title, Body }, optionally Start Open. Empty falls back to three sample sections, so the component shows what it is the moment you place it.

Input (Section)	What it does
Title / Body	The row and what it reveals.
Start Open	Render this one already open.

Each section publishes Opened (boolean), so you can react to one without owning its state.

Decisions worth knowing before you change it

Each section owns its own state. Opening one never closes another. If you want single-open behaviour, hold the open index above the For Each and drive Start Open from it — the section will follow, because its state is a count of its own clicks and not a hidden mode.

The state is a click count, not a remembered boolean. This is the part that was wrong first and looked fine. A Function that flips Outputs.IsOpen has to know whether it has ever run — and it has not: with Start Open unset, no value ever arrives on its inputs, so the node never runs at load and the first click is silently consumed as the missing boot run. The drive had to click each header twice to open it. A Counter arrives at 0 on load, so the Function has a real answer before anyone touches it, and Start Open works with no boot run to seed it.

The whole header row is the hit area, not the words. The drive clicks the middle of the row — a gap, not the text — on purpose.

The chevron swaps glyph rather than rotating. Lucide has no rotation port, and a swap reads correctly with animation turned off.