* perf: cut review-chat time-to-first-token
The sandbox-less PR review chat paid several blocking network round-trips
before the first token on every message. Cache GitHub App installation
tokens in-process (per scope, until ~10m before expiry, above the proxy's
5m refresh window) so the chat graph factory and proxy stop re-minting one
each turn. Also drop the duplicate thread-metadata read in the commands
proxy and replace the heavy per-message get_review staleness check with a
single lightweight PR head-SHA lookup.
Co-authored-by: open-swe[bot] <open-swe@users.noreply.github.com>
* fix: keep review chat alive when reseed fails
Address review: a moved PR head now triggers _build_pr_context (and thus
get_review). For an existing chat, fall back to the last seeded context on
HTTPException instead of failing the command; fresh chats still surface the
error since they have no prior context.
Co-authored-by: open-swe[bot] <open-swe@users.noreply.github.com>
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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
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Co-authored-by: open-swe[bot] <open-swe@users.noreply.github.com>
