* perf(studio): settle the edit accuracy bench on frames and network, not a fixed window
settled() waited for the box and the preview frames to hold still for 500 ms,
7 to 15 times a case. It now resolves once they read the same on 3 animation
frames in a row while the Studio page has no request in flight (the event
stream and server-rendered timeline thumbnails excepted) and the server has
announced every project file written since its last file-change event, so a
save, a preview reload or a reload the event starts still holds it open.
EDIT_ACCURACY_STILL_MS restores the fixed window with no network signal.
Also polls studio_seek every 50 ms instead of 250 ms while Studio opens.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
* perf(studio): keep one producer Chrome open across edit accuracy renders
Every render launched and closed its own producer Chrome. The run now holds a
lease on the engine's pooled browser (a capture session with the renders'
launch settings and its page closed), so each render opens a page in that
browser instead. Each render still gets its own page and file server, and
clears the browser cache first. A held browser that failed to launch or whose
Chrome died is dropped and held again, never reused.
Studio's server stays per case: it serves one project folder, stamps it on
start and keeps that folder's undo history open, so switching folders under it
would leak history between cases. Its start is polled every 50 ms instead of
200 ms.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
* test(studio): import render.mjs at the top of the edit accuracy render test
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
* fix(studio): restart the settle window when a busy request's frame goes away
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
* style(studio): format the edit accuracy settle test
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
* fix(studio): seek the edit bench only after Studio binds the timeline
openStudio now polls every 50 ms, so after a reload its first studio_seek
often lands before the runtime binds the timeline (Studio still reports
duration 0, but the playhead moves). The bind then replays the playhead from
near 0 (core init.ts progress(0.0001) then totalTime). A tween that starts on
the playhead was already initialised by the early seek, so GSAP skips its
first keyframe. The preview then holds a box no fresh seek or render shows.
In resize-fromto-px-r0-nested-z100-on that box is 90 px off, and it persists
until the next seek.
Wait for studio_look to report a duration before seeking.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
* ci: a test-only change under studio or player needs no captures
Tests are not behaviour a user sees, like the markdown the check already skips.
A bench-harness PR (#4953) was asked for Before and After screenshots.
* ci: pin a mixed source and test change, and say tests are not counted
* fix(ci): let markdown-only changes under studio and player skip the captures check
* docs: map the Studio edit path, the edit accuracy bench and test setup for agents
* docs: name the Studio captures rule and the local comment checks
* docs: point the Studio gate notes at the scripts that own the rules
* docs: correct the Studio save paths and add the producer stage map
* docs: name where producer sizes workers and which captures encode inline
oxfmt formats markdown, and the file added in #3165 was not run through it.
main's Format check has been failing since that merge, which also fails every
open PR, since CI checks the merge with main.
Working in packages/studio for the first time costs a day rediscovering things
the source does not show: that the chrome is a measurement drawn in Studio's
document over an iframe, that some gestures cannot be synthesised at all so a
driver needs window.__studioTest, that the diagnostic channels exist and are
off by default, that bare `bun test` reports failures that are not real, and
which gates reject a PR.
Scoped to the package, following docs/AGENTS.md, and pointed at from the
project-structure list in both root files so it is found before the first edit
rather than after.
