* feat: reviews page split view, add-to-chat, virtualization + perf
- Virtualize the diff (Pierre Virtualizer + worker pool), mirroring the agent
chat panel, so large PRs window rows instead of materializing every line.
- Split chat and diff into independent scroll containers and make chat
auto-scroll fully contained, so typing/streaming no longer moves the diff.
- Memoize FileDiffCard with stable callbacks so focusing a finding re-renders
only the affected card.
- Add a persisted unified/split diff toggle.
- Add highlight-to-chat: select lines (drag / shift-click) + gutter "+" to drop
a file:line snippet into the chat composer.
- Rebuild sidebar group rows: whole card scrolls to the group (incl. the
expanded explanation), Read explanation stays a separate toggle, memoized.
* feat: add-to-chat uses attachment pills + selection popup / ⌘L
Replace the raw-snippet injection with a Cursor-style flow:
- Selecting lines shows a floating "Add to Chat ⌘L" popup at the pointer; ⌘L
adds the current selection without it. Removes the auto-adding gutter "+".
- "Add to chat" now creates a removable attachment pill in the composer (and a
pill in the sent message bubble) instead of pasting raw text. The code is
still serialized into the message content so the model receives it as context.
* feat: restore gutter + drag-handle for line selection
Re-enable Pierre's gutter '+' as a click-and-drag line selector (with the
highlight growing as you drag) — the affordance that was lost when the
auto-adding gutter button was removed. It no longer auto-adds: the commit flows
through onLineSelected to the 'Add to Chat' popup / ⌘L.
* fix: live selection highlight while dragging + reposition Add to Chat popup
- Feed onLineSelectionChange into the controlled selection so rows highlight
live as you drag, not just on release (Pierre only paints the controlled
selection when the prop updates). Popup now fires on onLineSelectionEnd.
- Anchor the popup's bottom-left to the drag handle (drop horizontal centering)
so it no longer overlaps the '+' button.
* fix: anchor Add to Chat popup to gutter handle + click-away to unselect
- Position the popup from the gutter '+' handle's rect (in the diff shadow DOM,
placed on the selection's bottom line) instead of the pointer-release point,
which landed inconsistently. Falls back to the pointer if not found.
- Clear the line selection (and popup) on any outside pointer-down.
* fix: sidebar-collapse header overlap + PR review comments
- Lift useSidebarLayout to AgentsShell (single source), share collapsed via
context, and pad the reviews header left when the sidebar is collapsed so the
fixed collapse toggle no longer overlaps the header content.
- add-to-chat: collect each diff side separately so a selection that spans a
deletion->addition no longer pastes wrong-file lines (PR comment).
- chat: clear attachments after sending via a suggested prompt, so an attached
snippet isn't silently resent on the next message (PR comment).
* fix: anchored finding card positions to the right of the diff again
The virtualization refactor moved the card inside the main-width Virtualizer
scroller, so it clamped over the diff. Render it in the outer container as a
viewport-fixed card clamped to window width (right gutter / over the side panel,
like prod) and track the finding as the diff scrolls (rAF-throttled), hiding
when the finding scrolls out of view.
Lighter, more consistent type across the dashboard and agent UI:
unify title sizes, drop semibold/bold in chrome to medium, harmonize
stray text-sm to text-xs, normalize chat markdown headings, and enable
antialiased font smoothing (fixes heavy text on dark backgrounds).
Co-authored-by: open-swe[bot] <open-swe@users.noreply.github.com>
* feat: chat with your PR on the review page
Add a sandbox-less `chat` graph that answers questions about a single PR
from its diff, the published review findings, and read-only GitHub access.
- agent/chat.py: deepagents graph, no sandbox (default StateBackend, file
mutation + execute tools excluded). PR context is seeded as virtual files
under /pr/; a repo-scoped App token is resolved in-graph.
- tools: read_repo_file, search_repo_code, list_review_findings.
- dashboard/review_chat_api.py + routes: per-user chat thread, LangGraph
stream/commands/state/history proxy pinned to the chat assistant, seeds
diff/findings/overview on first run. Gated by repo access.
- UI: Chat tab wired to a chat-scoped StreamProvider (replaces Coming Soon).
* feat: admin setting for review-chat default model
Add a 'Open SWE Review Chat' default to team settings (default_chat_model /
default_chat_reasoning_effort). get_team_default_model("chat") inherits the
Agent default when unset; the chat graph resolves through it. Admin RolePicker
gains an 'Agent default' inherit option that clears the override.
* feat: multi-conversation review chat (tabs, new chat, history)
Replace the single per-PR chat thread with multiple per-user conversations:
- threads minted client-side; first message persists with a title derived
from the prompt.
- list + delete endpoints; chat panel gets a tab strip (history), new-chat
(+), close (x), refresh, an intro greeting, and suggested prompts.
- get_review_chat now returns availability only (ids are client-minted).
* ui fixes
* ui: review-chat history dropdown, full-width AI replies, resizable side panel
* fix(review-chat): enforce per-user thread ownership on proxy endpoints; reseed PR context on head change
---------
Co-authored-by: open-swe[bot] <open-swe@users.noreply.github.com>
