💭 I'm reviewing the current PR diff to see what's changed since the last review pass—looks like the index.css changes were reverted and tests were added. I want to check whether the PreviewPanelShell's new resizing state correctly handles the pointer capture and resize-drag transition, and whether the overflow-hidden behavior when closed still clips the resize handle as previously flagged. For ChatView, it looks like they addressed the earlier concern about rightPanelPresent not accounting for sheet mode by adding a sheetRightPanelPresence check, so that issue seems resolved. Let me pull up the current PreviewPanelShell file to confirm these fixes are actually in place.

1. browse_code — apps/web/src/components/preview/PreviewPanelShell.tsx

2. browse_code — apps/web/src/panelAnimations.ts

💭 I'm examining PreviewPanelShell's width handling—the inner content div keeps a fixed pixel width when animated while the host container collapses using overflow-hidden and a starting-style transition, so I'm checking whether the content actually reflows properly during the open/close animation. There's a potential edge case: if max-w-full clamps the host narrower than the inner div's fixed width, the content could overflow the host since overflow isn't hidden while open, but since width is derived from the same clamped value via useResizableWidth, this should stay in sync in practice. I'm also checking that the resize handle, now positioned absolutely as a sibling inside the flex-col host, doesn't disrupt the previous flex layout structure where children were direct flex items. Now I want to verify that useResizableWidth's pointer-down handler properly sets pointer capture, and confirm RightPanelResizeHandle correctly wires up all four pointer event handlers. I'm also checking whether removing the transition class during drag and re-adding it on pointer-up could accidentally trigger an unwanted width animation, but since the width itself isn't changing at that moment it should be safe. Then I'm tracing how usePanelPresence computes its open/animated flags for the right panel and thinking through what happens if a window resize flips into sheet mode mid-interaction. When not animated, closing hides content immediately since visible depends directly on open, and the timeout is only there to keep internal state synced. I'm also checking that switching scope keys mid-close unmounts content right away, and that the retained ref updates safely after render so reopening with a new key doesn't hit stale state. Now I'm tracing how the right panel's rendered surface picks between inline and sheet presence values, and confirming that during the 200ms closing animation the panel stays "present" so header controls remain inside the panel container until the animation finishes, which matches the intended behavior. I'm moving on to check how RightPanelSheet passes its open and animated props down into the underlying Sheet component to see how it drives the exit animation. Previously it only rendered the sheet component when open, but now it stays mounted during closing with open set to false — I need to check whether that component handles unmounting properly, so I should look at sheet.tsx, RightPanelSheet.tsx, and sidebar.tsx.

3. browse_code — apps/web/src/components/ui/sheet.tsx

4. browse_code — apps/web/src/components/RightPanelSheet.tsx

💭 I'm confirming the sheet keeps the popup mounted since it uses keepMounted, and that the backdrop and popup transitions both align with the 200ms panel animation duration. I'm also checking how the animated=false case forces ending styles and disables transitions to see how Base UI detects exit animations. Now I'm turning to sidebar.tsx to trace where the animated prop from sidebarInstance gets used inside SidebarRail — the diff shows it declared early in the function but referenced much later, so I need to view the full function to understand the flow.

5. browse_code — apps/web/src/components/ui/sidebar.tsx

6. browse_code — apps/web/src/components/ui/sidebar.tsx

💭 I'm checking whether the rail's transition-all change affects the hover pseudo-element's background transition, and realizing pseudo-elements don't inherit transition properties from their parent, so that's unaffected. Looking at the resize code, I see it already zeroes out transition-duration on the gap and container during drag, which is expected. I'm also verifying that WorkspacePageHeader's transition variant depends on data-panel-animations existing on an ancestor from SidebarProvider — this only works if the header is actually nested inside AppSidebarLayout, so I want to check if it's ever rendered outside that context, like in a portal or sheet, where the attribute wouldn't be present. Checking the Tailwind syntax for stacking the arbitrary ancestor selector with motion-safe, it looks valid and should compile to a media query wrapping a descendant selector, so that's fine. Now I'm turning to the PreviewPanelShell's inner wrapper, which sets a fixed inline width whenever animated is true, and wondering if that causes issues during resizing or when clamped by max-w-full, especially since animated becomes true under multiple combined conditions. If the host container is clamped narrower than the calculated resizable width, the inner div's inline width could exceed the host's clamped width, causing overflow into neighboring content since there's no overflow-hidden guard when open. I'm working through the math on when this clamping would actually bite — it seems to require a fairly narrow viewport, but the discrepancy could still spill content by tens of pixels in edge cases. That seems fine too. I'm now checking whether pointer capture is set correctly in useResizableWidth's pointer down handler, whether RightPanelResizeHandle's handler types include onPointerCancel, and whether ChatView's conditional for the inline right panel accidentally dropped the !shouldUseRightPanelSheet check. For the raw button in PanelAnimationsPreview, I'm considering that it functions like a swatch or preview target rather than a true button primitive, so it's likely acceptable — but I want to check if there's a shared preview primitive pattern used elsewhere in settings for consistency. Looking closer at the enabled prop logic, I notice the preview always animates its width transition on click regardless of whether animations are actually disabled, which misrepresents the off state visually even though it's a minor UI inconsistency rather than a real bug. I move on to check RightPanelTabs, where conditional prop spreading passes animated and open onto the panel shell only when defined — a bit unusual but compatible with exactOptionalPropertyTypes, so it's fine. Then I turn to ChatView's sheetRightPanelPresence, where the animated flag depends on both panel animations being active and the sheet using the right-panel-sheet mode, meaning when animations are off the sheet's presence toggles off immediately without transition. I trace through the closing behavior: with animations off, the sheet unmounts instantly without an exit animation; with animations on, presence keeps it mounted for 200ms while the sheet plays its own opacity/translate exit transition, though the timing could clip the very end slightly. I notice previously the sheet had no exit animation at all since it unmounted instantly, so this is a behavioral change worth flagging. I check the usePanelPresence hook's initialization edge cases and the redundant setTimeout in the non-animated branch, then move to how the pull requests page wires up usePanelPresence with a scope key tied to the right panel ref, feeding into how the rendered surface determines the environment ID. I'm now tracing the environment ID fallback chain — during closing animations, the retained surface should still supply a valid environment ID, but I want to verify this fallback logic still holds up against the previous behavior using the active surface.

7. browse_code — apps/web/src/routes/_chat.pull-requests.tsx

8. browse_code — apps/web/src/components/RightPanelTabs.tsx

💭 Looking at the pull-requests route, I see it's switched to using renderedPullRequestSurface instead of activePullRequestSurface, with rightPanelPresence keeping its open value during close transitions. I'm tracing how panelEnvironmentId depends on this rendered surface, and noting it becomes null once the panel is fully closed. While comparing values during open state, they still line up identically to before, so no functional difference there. There's a small divergence though — tab status changes are still keyed to the null-during-close activePullRequestSurface rather than the retained surface, which seems like a minor inconsistency worth flagging before I move on to checking useResizableWidth for pointer capture and cancel handling.

9. browse_code — apps/web/src/hooks/useResizableWidth.ts

10. browse_code — apps/web/src/components/preview/RightPanelResizeHandle.tsx

💭 The pointer capture logic checks the button and sets resizing state accordingly, and since React commits before the first pointermove, the transition class gets removed in time to avoid visual glitches. I'm also considering edge cases like lost pointer capture and whether pointercancel handles that properly. Now I'm reasoning through the CSS cascade for the starting-style width transition — since !important in a stylesheet overrides a non-important inline style, the starting:w-0! should correctly force the initial width to zero for the opening animation, though I need to verify @starting-style only triggers under the right conditions. I realize this could also fire unintentionally on page load or thread switches if the panel is already open when the host element mounts, causing an unwanted open animation — though this seems like a minor edge case that might even be desirable. I should check whether Tailwind v4.1's starting: variant is used elsewhere in the codebase, confirm the version supports it, and verify that usePanelAnimationsActive's reduced-motion check doesn't conflict with the motion-reduce:transition-none class, then check whether WorkspacePageHeader always renders within a SidebarProvider that sets the data-panel-animations attribute.

11. git_tools — starting:

12. git_tools — WorkspacePageHeader

💭 I should double-check that other routes using WorkspacePageHeader are wrapped in AppSidebarLayout, and verify the installed Tailwind version actually supports the starting: variant before relying on it, since @starting-style transitions need to be active right at mount for the width animation to work correctly.

13. git_tools — "tailwindcss"

14. git_tools — panel-animations|data-panel-animations

💭 I recall that Tailwind v4.0's release notes included the starting variant for @starting-style support, so that should work with the installed version. Looking at WorkspacePageHeader, I'm checking whether that padding-left transition still matters and confirming the arbitrary variant syntax compiles to a valid attribute selector matching the ancestor's data attribute. The real concern is that WorkspacePageHeader now has an implicit dependency on AppSidebarLayout setting that attribute correctly. I recognize this same pattern is already used elsewhere in the codebase for sidebar collapsible states, so it's consistent with existing conventions. Since this is a later review pass with prior findings already fixed, I'm now scrutinizing whether those fixes introduced new problems—specifically checking if PreviewPanelShell's inner wrapper with a fixed pixel width could break responsive clamping when the window narrows, but tracing through the logic shows both the host and inner wrapper use the same computed width value, so they stay in sync. I'm now working through an edge case where a very narrow container (under 360px) could cause the inner content to overflow past the host's max-width clamp, potentially overlapping the sibling column since there's no overflow-hidden guard—though I'm uncertain whether such a narrow container is actually reachable given the layout's breakpoint logic for switching to sheet mode. I'm checking whether children relying on absolute positioning relative to the host still work correctly since the new wrapper isn't itself relative—that resolves fine since positioning still targets the host. But I'm noticing a real issue: during the opening animation, the host width animates from 0 while the inner wrapper stays fixed at its full width, and overflow-hidden is only applied when animating and closed, not while opening—so the full-width content could show through during that transition. Actually this works in favor of the design: as the host grows from 0 to 540px, the content stays anchored at the host's left edge, which moves leftward, so the panel appears to slide in from off-screen right — a natural slide-in effect, as long as an ancestor has overflow hidden to clip the excess during the transition. When the host is narrower than 540px, the content could actually extend past the viewport's right edge since it's anchored to the host's shrinking left edge, so it relies on some ancestor overflow-hidden in the layout to avoid a scrollbar — a bit risky but likely fine given the app's containment. I'm also noticing that pointer-events-none during close might interfere with interactivity if the panel is still visible mid-transition. Focus retention during the close animation is a minor concern since the panel stays mounted with pointer-events disabled for 200ms. The header's rightPanelOpen prop staying true during that window seems fine too. Now I'm turning my attention to the settings row and PanelAnimationsPreview component, which uses a plain button element with custom styling for rounded corners, border, and overflow clipping. I want to check whether this focus ring style matches conventions used elsewhere for preview swatches or targets in settings, versus the shared Button component's focus-visible ring treatment—checking if there's inconsistency between a ring-2 ring-ring approach here versus a ring-[3px] ring-ring/50 pattern that might be the shadcn v4 standard elsewhere in the codebase.

15. git_tools — focus-visible:ring

16. git_tools — focus-visible:ring-offset

💭 The focus ring in PanelAnimationsPreview matches app convention exactly, and ThemePreviewCircles is a comparable raw-button preview, so no issue there. But I'm wondering if SettingsRow sits on a card surface — if so, using ring-offset-background instead of ring-offset-card like ThemePreviewCircles does would create a mismatched offset color. I want to check SettingsRow's definition to confirm its surface, since ThemeSettings.tsx:305 already uses ring-offset-card, suggesting settings surfaces are indeed card-based.

17. git_tools — function SettingsRow

💭 I'm noticing the new SettingsRow usage in AppearanceSettingsPanel is missing a required title prop, which the component's interface likely expects alongside description and control. I need to check whether searchableSetting("panel-animations") actually supplies a title from the SETTINGS_SEARCH_ITEMS definitions, since if it doesn't, this would be a type error.

18. git_tools — searchableSetting

💭 The title comes from the catalog. I'm checking AppearanceSettingsPanel around line 1100-1180 to see where the new row fits and whether it matches the pattern of existing rows, including whether other appearance settings use a preview. I also need to verify the placement of the new SETTINGS_SEARCH_ITEMS entry, since order matters and the test expects searching "panel animations" to return exactly the panel-animations result. The row's DOM id should be "panel-animations" via searchableSetting, so the anchor should work fine without needing an explicit targetId. Now let's check the AppearanceSettingsPanel section itself for placement consistency.

19. browse_code — apps/web/src/components/settings/SettingsPanels.tsx

20. browse_code — apps/web/src/components/settings/settingsSearch.ts

💭 Settings integration looks consistent. Now I'm checking PanelAnimationsPreview — its transition effect syncs panelsOpen to the enabled flag via a rAF callback, so I want to verify the animation actually reflects the toggle state rather than always running regardless of the setting. There's a minor mismatch: when the setting is off, clicking the preview still animates open, contradicting the doc claim that it "replays the motion without changing either panel." Not a strong finding, so I'll move on to checking the more substantive parts of the ChatView diff — specifically the inlineRightPanelOwnsTitleBar logic and panel rendering conditions around the layout controls placement, so I should pull up that section of the file for closer inspection.

21. browse_code — apps/web/src/components/ChatView.tsx

22. browse_code — apps/web/src/components/ChatView.tsx

💭 Tracing through sheet mode, I see panelLayoutControls only renders inside the sheet itself when the panel is open, not at the outer header or div level. I want to confirm this by checking the sheet's RightPanelTabs component where it receives the layoutControls prop. But then I realize the same issue applies during the 200ms sheet close animation: rightPanelPresent stays true, so the header still doesn't show controls, while the sheet fades out along with the layoutControls it contains. That means the panel toggle buttons in the titlebar blink out and only reappear after the sheet fully unmounts — essentially the same flicker concern raised earlier, just triggered on close rather than open. Checking the inline case for comparison: the inline panel's layoutControls are rendered absolutely positioned in the outer container rather than inside the collapsing panel itself, so they're unaffected by the width animation there. But in the sheet case, the controls do live inside the popup, so they fade and slide with it as it exits, then jump back to the header — a visible 200ms disappearance and reappearance that didn't happen before, since the sheet used to unmount instantly with no animation. Checking the inline case, both the outer-container cluster and header copy share the same right/top coordinates since the header sits at the container's top edge, so there's no jump when the inline panel closes — that part's actually correct by design. For the sheet, keeping rightPanelPresent in the header is intentional too, since it hides controls while the sheet copy animates out.

23. browse_code — apps/web/src/components/ChatView.tsx

💭 I've confirmed that in sheet mode, closing the sheet with animations enabled keeps the right panel marked present for 200ms, causing the titlebar's toggle buttons to withhold their copy while the sheet's version fades out—leaving the buttons absent from the header for that whole duration before popping back. This is a real regression from the line 7198 change, so I need to find the smallest possible fix. I'm working through the correct condition: the header copy should hide while the inline panel is present, but for the sheet it should reappear as soon as closing begins rather than waiting for the sheet's full presence flag to clear. I'm testing a few variations of the boolean logic, being careful that the condition still accounts for cases where the sheet wouldn't even render (like no active thread), since a naive fix could hide the toggle buttons incorrectly in those cases too. This confirms the flicker is real and noticeable during the sheet's animated transitions. I'm now considering another potential issue: whether the PreviewPanelShell's width-zero starting state combined with the inner fixed-width wrapper lacks proper overflow clipping during the open animation, which could cause content to spill outside the host container in inline mode.

24. browse_code — apps/web/src/routes/_chat.pull-requests.tsx

💭 I'm checking that the SidebarInset's overflow-hidden property clips any content that expands beyond its bounds during the open animation, confirming the wider panel won't visually overlap the list column since the overflow spills off the right edge and gets clipped there. Both the pull-requests and openPanelControls cases anchor consistently between present/absent states, so there's no flicker there — the real issue is isolated to the sheet-mode titlebar controls gap in ChatView. Now I'm tracing the inline ChatView close case to verify the same anchor consistency holds, checking how reserveNativeControls interacts with inlineRightPanelOwnsTitleBar. I want to move past that reserveTitleBarControlInset tangent and instead reconsider candidate finding #2 more carefully — whether there's a real problem with the resizing state and the starting width class. Toggling resizing removes the transition, but the starting class stays harmless since the element's already mounted; the more interesting question is whether swapping the transition class back and forth causes a layout glitch. I'm also weighing a third candidate: the PreviewPanelShell's inner wrapper is rendered unconditionally across all modes, adding an extra flex column DOM layer that might not stretch correctly in sidebar or embedded mode if the wrapper lacks flex-1 while siblings expect to fill available height. The h-0 drag region contributes nothing so heights should total the same, and this seems low risk since PreviewPanelShell is used consistently. Looking at sheet.tsx next, the animated prop is a reasonable extension of the primitive contract, and SheetBackdrop's animated=false case uses important-flagged transition overrides that seem consistent with that pattern. Checking the tailwind-merge behavior for the transition and data-attribute classes, both the transition and opacity groups resolve correctly with the later declaration winning, so the !important flags aren't strictly necessary but don't cause harm. The popup's translate overrides follow the same dedup pattern and should merge cleanly too. I'm also considering Base UI's Dialog unmount timing with transition-none — since no transition is detected, it unmounts immediately, though keepMounted=true means it just toggles a hidden attribute instead. Looking at candidate #5, I'm tracing how usePanelPresence's open branch handles the rAF-based state update versus the timeout-based present-false transition when closing. I'm working through an edge case: if open flips to false within the same frame the rAF from opening was scheduled, the cleanup cancels that rAF, leaving present at its initial false value, which would cause the panel to unmount instantly without an exit animation — but this is an acceptable degenerate case rather than a real bug. Now I'm looking at candidate #6, the panelAnimations.test.tsx file, which builds a fake DOM and stubs globals with a hand-rolled TestNode harness. This seems fragile and possibly inconsistent with the repo's usual testing conventions, so I want to check how other .test.tsx files in apps/web render React components to see if there's an established pattern like @testing-library/react I should be matching instead.

25. git_tools — react-dom/client|@testing-library|happy-dom|jsdom

💭 I want to check whether PreviewView.test.tsx already has its own TestNode/harness setup, since if so, this would be a duplicated pattern rather than a unique quirk worth flagging—though that's more of a code duplication concern than a UI consistency issue.

26. browse_code — apps/web/src/components/preview/PreviewView.test.tsx

💭 The duplicated harness pattern already exists in the repo, so it's not a real finding. I'm now reconsidering the strongest candidates and want to double-check whether panelAnimationsEnabled in the web ClientSettings is actually wired up through useClientSettings, and whether the desktop bridge needs corresponding support. I also want to verify whether the sheet-mode mobile sidebar or other portalled content needs the data-panel-animations attribute alongside AppSidebarLayout, though WorkspacePageHeader isn't portalled so it's fine. Looking at PreviewPanelShell, I'm checking whether the starting:w-0! class conflicts with other width classes via tailwind-merge, but since it's scoped to a different variant and only active during initial insertion, it should coexist safely. The remaining question is whether the panel host element is genuinely freshly inserted into the DOM when it opens, since that's what determines whether @starting-style actually triggers. Confirming that RightPanelTabs mounts on open and isn't keyed to the active thread, so the enter transition should behave correctly except on a full page reload when the panel is already open, where it'll slide in from zero width — a minor, likely harmless quirk. I also note the motion-safe usage in WorkspacePageHeader is redundant since data-panel-animations already accounts for reduced-motion preferences, so that's not a real issue. Now I want to check whether there's anything else in this area I haven't covered yet.

27. git_tools — rightPanelOpen

💭 I want to check whether ChatHeader's use of the rightPanelOpen prop causes issues if it stays true for 200ms during close, like hiding the title or a button, so I'll grep ChatHeader to verify.

28. git_tools — rightPanelOpen

💭 The padding logic tracks whether the controls cluster lives in the header, so during the sheet-close transition the header keeps zero padding for 200ms while controls are still in the fading sheet, then switches to reserved padding once the sheet unmounts and controls appear in the header — this stays consistent since both the gap and pad update together. Since the sheet's toggle buttons sit at roughly the same visual position as the titlebar's closed-state controls, what actually happens is the cluster fades out at that spot over 200ms and then instantly pops back in — a small but real visual discontinuity that's worth flagging as a minor regression, since it only occurs with this new feature enabled. Given the check defaults to failure when there are findings, I'll need to report this, though I want to be careful it doesn't read as nitpicking given the same line was already touched in a prior fix. The right panel toggle being briefly invisible is genuinely notable since it's the only way to reopen that panel, so I'll treat it as a real but minor issue while I keep digging into PreviewPanelShell's inner wrapper for anything more clearly broken in the core animation logic. Tracing through the width/animation conditions, I'm checking edge cases: maximized state disables animation cleanly, resizing tracks width live without transition, and the host/inner width interaction with overflow-hidden during collapse — thinking through how content clips as the host shrinks toward zero while its sibling grows in the flex row. So the visible portion of the content shrinks from the right as the host narrows, giving a standard reveal/clip effect during close — that's fine for PreviewPanelShell. I note the resize handle is disabled via pointer-events during close, which is correct, though during the open animation the handle remains active while the host edge is still moving, which could cause minor drag conflicts but isn't a real problem. I'm now revisiting the sheet's animated override once more to double check. Checking whether keepMounted combined with open for RightPanelSheet causes a stray render when animations are off — tracing through the visibility logic, when animated=false the visible flag exactly equals open, so the sheet is never rendered in an open=false state, which confirms that path is safe. I'm also verifying scope handling when switching threads mid-open, and whether RightPanelTabs correctly falls back when animated/open aren't passed in sheet mode — that fallback looks fine too. The main finding remains the sheet controls gap. I'm also double-checking WorkspacePageHeader's arbitrary Tailwind variant selectors to make sure the generated CSS with escaped brackets and data-attribute prefixes is actually valid. I'm wondering whether AppSidebarLayout renders more than one Sidebar instance — like a legacy version alongside the new one — and if only one of them receives the animated prop, that would leave the other stuck with always-on animation, creating an inconsistency. I want to check the code around lines 210-240 to verify.

29. browse_code — apps/web/src/components/AppSidebarLayout.tsx

💭 Confirming there's only a single Sidebar instance, and the rail's double-click reset should animate smoothly since it's inside the animated context. Now I want to check if other Sidebar usages elsewhere in the app (like ChatView's plan sidebar or SidebarInset) default to always animating regardless of collapsible state. I want to verify that usePanelAnimationsActive correctly reads the panelAnimationsEnabled selector from useClientSettings, and that this matches how the test mocks it.

30. git_tools — export function useClientSettings

31. git_tools — <Sidebar$|<Sidebar |<Sidebar\n

💭 The selector recomputing each render there is harmless since it's cheap, matching the common pattern elsewhere. I should double check that useMediaQuery exists and accepts a query string like "(prefers-reduced-motion: reduce)", returning a boolean, since the test mocks it—let me grep for it.

32. browse_code — apps/web/src/hooks/useMediaQuery.ts

💭 I'm reconsidering whether the sheet-mode 200ms controls gap in ChatView is genuinely a regression, or whether the author intended rightPanelPresent for the inline case while the sheet case is actually broken. I want to double-check the inline case at that line more carefully before concluding. If I switch the condition to only account for sheetRightPanelPresent && rightPanelOpen, then at close time the header's cluster would appear immediately while the sheet's copy is still fading out, causing two overlapping clusters at nearly the same inset for that 200ms window. That overlap seems like a real visual glitch worth flagging. Given this is a narrow, opt-in edge case, I want to check if there's something more substantive I'm missing, so I'm going back to re-read the ChatView diff for the file-surface refactor, particularly around how revealLine gets set based on the rendered right panel surface kind. The new logic preserves the previous behavior when the panel is open and retains the last value during close, which seems fine. Now I want to double-check the branch condition around line 7133 to make sure activeProject and related references are still intact, and confirm the old activeFileSurface variable that was deleted isn't still referenced anywhere else.

33. git_tools — activeFileSurface

34. browse_code — apps/web/src/components/ChatView.tsx

💭 The environmentId routing on FilePreviewPanel looks pre-existing, so I'll set that aside. I have one moderate finding, and I'm weighing whether it's significant enough to fail the check given the guidance that only clear consistency or regression risks should. I want to double-check whether the 200ms sheet gap is actually a real issue before finalizing. Confirming this: ChatView unmounts at the same 200ms duration as the sheet's exit transition, so the header cluster genuinely disappears for that entire window since the sheet's opacity fades to zero over that time. There's also a compounding effect—the header padding shift from pr-0 to pr-16 happens instantly on unmount rather than transitioning, so what used to be a simultaneous change now becomes a delayed layout jump 200ms after the panel closes, which strengthens the case that this is a real regression. I'm now checking whether this same delayed padding shift also applies to the inline panel case. I want to check whether panelLayoutControls is actually visible on mobile without any responsive hiding classes, and confirm the exact definition of shouldUseRightPanelSheet to be sure of the mobile/sheet behavior.

35. git_tools — shouldUseRightPanelSheet =

💭 This confirms it's a real code path via media query, so I'll post an inline comment on ChatView line 7198 about the sheet-close gap. I'm also weighing whether the PanelAnimationsPreview's hardcoded duration/easing values, which duplicate constants from panelAnimations.ts, are worth flagging—though using Tailwind classes directly is fairly standard practice, so it may not be a real violation. I notice the preview animates on click even when the underlying setting is off, which is a minor inconsistency between the control and the behavior it represents—but that feels like a product/aesthetic judgment call rather than something to flag. I'll move on to verifying the placement of the conditional-spread lines in RightPanelTabs around line 778.

36. browse_code — apps/web/src/components/RightPanelTabs.tsx

💭 I'll target that specific changed line in ChatView.tsx and suggest a cleaner conditional expression to replace the panel layout controls check, keeping it consistent with the existing pattern. Since the combined condition exceeds the 100-character line width, I'll format the suggestion with the ternary wrapped across lines to match the project's prettier style, preserving the existing 10-space indentation. I'll post this as an inline comment via the review tool.

37. modify_pr — One finding on the panel-animation presence wiring in ChatView: the titlebar control cluster is withheld from the header for the whole sheet exit, so it is missing from the UI for ~200ms in sheet mode.