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Video Feedback ​

You can leave feedback directly on videos and send it to the assistant — no need to describe timestamps or explain what you're pointing at. Feedback works in two places: on rendered videos in the chat, and in the timeline editor while you're editing.

The Video Player ​

Rendered videos appear in a built-in video player right in the chat. The player includes standard controls — play/pause, a volume slider, a timeline scrub bar, fullscreen, playback speed, and a current time / duration display. Hover over the scrub bar to see a precise time tooltip, and drag to seek through the video.

Playback Speed ​

Click the speed button (showing the current rate, e.g. "1x") in the player controls to cycle through playback speeds. This is handy for quickly scanning through longer videos or slowing down to catch details.

The Review Window ​

Next to the player controls you'll find a Give feedback button (on a phone it's a compact icon, with a badge counting any feedback you haven't sent yet). It opens a review window over the chat with two panes:

  • The video, with a feedback bar just above its scrub bar — that's where your notes live.
  • Your feedback list, on the right (below the video on a phone), with the comment box and the Send Feedback button.

The review window fills your screen, so on a large display the video gets plenty of room. Drag the divider between the two panes to give either side more room. The review window has no fullscreen button — the notes beside the video are the point, so the video stays in its pane.

On a phone the review fills the screen with the video on top and your feedback list under it; drag the bar between them to give either more room. Hold the phone upright: on its side the review asks you to rotate it back.

Adding Feedback ​

  1. Click or drag on the feedback bar above the scrub bar (tap or drag on a phone). A click drops a marker at a single moment; a drag marks a whole range (e.g., "this whole section needs to be shorter"). The video pauses on the frame where your marker starts and a comment box opens in the feedback pane. You can also click Add feedback here at the bottom of the feedback pane to place a marker at the current time.
  2. Write your comment in the text field — describe what you'd like changed.
  3. Draw on the frame (optional) — drawing tools appear under the comment box. Pick a pen color and circle (with your finger on a phone), underline, or highlight something on screen. Undo a stroke or clear the drawing to start over. The drawing is saved on the marker's start frame.
  4. Adjust the time — the two time fields under the comment set exactly when the marker starts and ends.
  5. Save the marker with the checkmark (or press Enter).

Repeat for as many moments as you'd like to comment on. Markers appear on the feedback bar as dots (single moments) or highlighted spans (ranges), so you can see where you've left feedback. Hover over one to preview its comment and drawing.

Moving and Resizing Markers ​

You can adjust a note right on the feedback bar instead of typing times. The video follows as you drag, so you can see the frame you're landing on.

  • Drag an edge — the note you're working on shows a small handle at each end. Drag one to stretch or shrink the range. Pulling a handle away from a single-moment marker turns it into a range, and dragging one edge of a range onto the other turns it back into a single moment.
  • Drag a dot — a single-moment marker moves whole when you drag its dot.
  • Drag the scrub bar — until you type a comment (or change the comment of a marker you reopened), the scrub bar moves the note too: a single-moment marker travels with it, and on a range the nearer edge follows. Once you've typed or changed the text the scrub bar holds still, so the note stays where you put it (the handles still work).
  • Click elsewhere on the feedback bar — also before you've typed or changed the comment, a click or drag on an empty part of the bar places the note there instead.

Saved markers work the same way: hover over one to reveal its handles. Grabbing a saved marker by a handle or by its dot opens it for editing and the drag carries on in one motion — Save keeps the new position, Escape puts the marker back where it was. While the note you have open has unsaved changes, the other markers wait until you save or cancel it.

Drawings Stay With the Start Frame ​

A drawing belongs to the frame where its marker starts. Whenever the video is showing a different frame — while you drag the end of a range, for example — your drawing tucks into a corner of the video and you can't draw; both come back when the video returns to the start, which it does on its own once you let go. If you move the start of a marker, your drawing comes along and is saved over the new frame.

Fine-Tuning Times ​

The start and end time fields give you precise control:

  • Click a time field to type a specific time (e.g., 1:23.456).
  • Scroll up or down on a time field to nudge the time. Hold Shift while scrolling for larger jumps (1 second instead of 0.1 seconds).
  • Swipe up or down on a time field on a phone to do the same: about one second per 100 pixels of travel.
  • Arrow keys — press Up or Down to step by 10 milliseconds. Hold the key to accelerate: it starts at 10ms steps, ramps up to 50ms, then 100ms, then 500ms the longer you hold.

The video frame updates as you adjust, so you can see exactly which frame your marker lands on. In the review window, after you adjust the end time the video shows that frame for a moment and then returns to the start of the marker.

Sending Feedback ​

Once you've added all your markers, click Send Feedback. Your comments and drawings go to the assistant as a message, the review window closes, and the assistant can respond and make adjustments based on what you marked.

You can send feedback while the assistant is still working on something else. It waits in the chat like any other message sent mid-reply and is read at the assistant's next step.

In the chat, your feedback appears as a tidy card titled after the video (or the project, for timeline feedback). Each marker gets its own entry: its time or time range above your comment, with your drawing alongside it. Click a drawing to view it full size.

Editing and Deleting Markers ​

Your markers are listed in the right-hand pane with their timestamps, comments, and drawing thumbnails.

  • Click a marker on the feedback bar, or the edit button in the list, to reopen it with its comment and drawing loaded.
  • Drag a marker on the feedback bar by its dot or its edge handles to move or resize it — see Moving and Resizing Markers.
  • Delete a marker using the delete button next to it in the list, or from the comment box while editing.

Unsent Notes Are Kept ​

Notes you haven't sent yet stay with that video, so you can close the review, keep chatting, and come back to them. The Give feedback button shows how many are waiting (e.g. "Give feedback (3 pending)"). Sending clears them.

A comment you're still typing isn't saved the same way — reloading or closing the tab with one open asks you to confirm first.

Keyboard Shortcuts ​

  • Ctrl+Z (or Cmd+Z on Mac) — undo the last drawing stroke.
  • Escape — cancel the current note without saving. A saved marker you were editing or dragging goes back to how it was.
  • Enter — save the current marker (when the comment field is focused).

Tips ​

  • Use drawings to point out specific things on screen — it's much faster than trying to describe them in words.
  • You can add as many markers as you need before sending.
  • Range markers are great for pacing feedback — drag across a section to say "this feels too long" or "speed this part up."
  • Hover over markers on the feedback bar to see a preview of your comment and drawing.

Feedback in the Timeline Editor ​

You can also add feedback markers directly in the timeline editor while working on your project — you don't have to render first.

Open the Feedback panel from the editor's side panel (the speech-bubble icon on the right). Click Add feedback here to start a note at the current playhead position, write your comment, adjust its time range, and manage all your annotations in one place. A badge on the icon shows how many markers you currently have.

You can also create feedback ranges by clicking or dragging directly on the ruler above the timeline tracks. Click a point to create a single-time marker, or click and drag across a section to create a range marker. Either way, the Feedback panel opens automatically with your new annotation ready for a comment.

While a note is open in the editor, scrubbing the timeline stretches its range from where the note started to wherever you scrub to — an easy way to select a section without typing times. Dragging markers by their dot or edge handles belongs to the review window; in the editor, use scrubbing or the time fields.

Feedback markers appear on the ruler as dots (point markers) or highlighted spans (range markers), giving you a visual overview of all your notes as you edit. Click any marker on the ruler or in the panel to revisit and edit it.

Markers Persist Across Sessions ​

Your feedback markers are saved automatically and will still be there the next time you open the same project — even if you close the browser or come back later. This means you can leave notes over multiple editing sessions without losing anything.

This is useful for leaving notes to yourself as you review a rough cut, or for building up a list of changes to send to the assistant all at once.

StarZero Agents by StarZero