EffectCraft's extension points compared with After Effects' (public
user guide and Scripting Guide) are now in docs/plugins.md, which
becomes "Plug-ins and extensions": scripts, ScriptUI panels and effect
plug-ins, with a short guide and an example panel for writing your own.
ScriptUI panels already came from `Scripts/ScriptUI Panels/` in the
settings folder, were listed at the bottom of the Window menu and
docked as tabs. What was missing: After Effects reopens the panels
that were open when it quit. Now the open panels are remembered in
`scriptui_panels.json` in the settings folder (a panel is added when
it opens and dropped when its tab or its script closes it; quitting
leaves the list), and `window.restoreScriptPanels` opens them again;
the desktop and web apps run it at start-up. A panel whose script is
gone or fails is reported and forgotten, and the others still open.
Where a panel was docked isn't kept, as workspace layouts aren't saved
between launches.
Gaps recorded in plugins.md and gaps.md G8: the Startup and Shutdown
script folders, keyboard shortcuts for scripts, ExtendScript's
`#include` / `#target` directives and `.jsxbin`.
Test: open_panels_open_again_at_the_next_launch (fails before: no
restore command), a_panel_dropped_in_the_folder_is_listed_and_opens_as_a_panel
(script), panels_open_at_quit_dock_again_at_launch (UI: the restored
panel docks with its controls; closing the tab forgets it).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- ui-egui: scriptui_view draws script windows at engine layout bounds; PanelKind::ScriptPanel; File ▸ Scripts and Window menu list scripts/panels (egui + native menus)
- examples/plugins/posterize-bands (WebAssembly, API v1); host plug-in tests; desktop loads <config>/Plug-ins
- MCP: script_ui and history tools; docs/plugins.md, agents.md, parity, architecture, ATTRIBUTION
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
