After clicking Install, the button reverted from "Installing..." → "Install"
the moment the POST returned, then sat there for ~15s before the green
"Installed" tag appeared. The 15s gap is PLUGIN_RELOAD_DELAY_MS — we
delay the GET /workspaces/:id/plugins refetch to wait for the workspace
to restart (the listing handler returns [] while the container is
restarting because findRunningContainer comes up empty).
Uninstall already does optimistic local-state mutation (line 244 prior
to this commit) so the green tag → install button transition is
instant. Install was the inconsistent half — push the registry entry
into `installed` immediately after POST returns 200 and let the
delayed refetch reconcile.
The optimistic record uses the registry entry's metadata (name,
version, description, tags, runtimes, skills) and sets
supported_on_runtime=true. If reconciliation later disagrees (server
filter, install actually failed at the runtime layer), the refetch
overwrites the local record. Worst case is a brief 15s window where
we show "Installed" for a plugin that won't load — same window the
user previously experienced as "stuck on Install button" — but flipped
to the correct expected state.
Custom-source installs (github://, etc.) don't have a registry entry
to use, so they keep the old behavior of waiting for the refetch. Most
users install from the registry list in the UI.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>