vercel-labs/agent-browser v0.33.2 on GitHub

Added input priority and per-client delivery settings to the stream server: each WebSocket connection now splits into a reader task and a writer loop, so clicks and keystrokes dispatch to the browser without queueing behind a frame write. Adds a per-client {"type":"config","maxFps":N} cap (1 to 120, 0 uncapped) and opt-in ack pacing via {"type":"config","pacing":"ack"} with {"type":"ack","seq":N}, which keeps one frame in flight so a stalled client never drains a backlog. Both settings can also be declared on the connection URL (?pacing=ack&maxFps=10), the only way to cover the opening frame. Every frame now carries a monotonic seq (#1594)
Added configurable stream encoding: frames were hardcoded to jpeg quality 80 at the session viewport, so frame rate was the only bandwidth lever. AGENT_BROWSER_STREAM_QUALITY, AGENT_BROWSER_STREAM_MAX_WIDTH and AGENT_BROWSER_STREAM_MAX_HEIGHT are read once per daemon and cut bytes without dropping frames: on a busy page at 1280x720, quality 20 takes a frame from 54 KB to 25 KB, and quality 20 at 640x360 takes it to 9 KB, frame rate unchanged in both. Width and height default to the session viewport, so a larger viewport is never downscaled unless both are set (#1626)

Frame delivery is now latest-wins. The stream server holds only the newest frame and reads it at send time, so frames produced while an earlier one is still being written are skipped. A client that assumed it received every frame from the WebSocket now receives fewer. Nothing in this repo consumes the stream that way, since record captures through CDP and the dashboard is a viewer, so this affects external consumers only (#1594)
metadata.timestamp now carries a real value. It was always 0, because CDP sends the capture time as a float in seconds and the code read it as an integer. It is now epoch milliseconds, so a client can measure how stale the frame it is drawing is. A client that treated 0 as unknown is unaffected (#1594)

Fixed keyboard input over the stream, which worked in none of the three shapes the docs publish: an absent key, code, or text reached CDP as an explicit null, which rejects the whole command, so every key release and every non-printable key was silently dropped, the dashboard's own payloads included (#1594)
Fixed click latency behind mouse movement: input dispatch awaited Chrome's reply before reading the next message, so a click sat one round trip behind every queued mouse move. After a 300-event sweep a click landed 2471ms late; it now lands in 6ms (#1627)
Fixed stream disable returning while a slow client's input reader was still running (#1594)