* feat(hub+web): add POST /sessions/:id/reopen + Reopen button on inactive rows
Archived sessions retain their full transcript and metadata in the DB, but
today there is no path back to them from the web UI; the only way to revive
one is shell access plus sqlite metadata patching plus a manual /resume call.
This change adds a single one-click affordance:
- Hub: new POST /api/sessions/:id/reopen route on the existing sessions
router. The route delegates to a new engine method `reopenSession` that:
- is idempotent (active session -> 200 with `resumed:false`),
- validates Cursor sessions still have a `cursorSessionId` once they have
any messages (otherwise we cannot resume the agent thread),
- clears `lifecycleState='archived'`, `archivedBy`, `archiveReason` via a
versioned metadata update, and stamps `lifecycleStateSince`,
- defaults `cursorSessionProtocol='stream-json'` for pre-#799 Cursor
sessions (sessions that have a `cursorSessionId` but no protocol set),
so routing still reaches the legacy launcher; ACP sessions keep their
explicit protocol,
- forwards to the same `resumeSession` path the existing /resume route
uses, including the `canFreshSpawnNeverStartedSession` fallback.
422 is returned with `{ missing: [...] }` when the agent metadata needed
to resume is gone; other engine errors map to 404/409/503/500 with the
existing shape (mirrors /resume).
- Web: a "Reopen" entry in the SessionActionMenu that appears next to
"Delete" on inactive sessions only. Wired into both the SessionList rows
and the SessionHeader more-menu, with a small dismissable error dialog
for the 422 missing-metadata case.
- Tests: route-level coverage for the four response shapes (200 reopen,
200 idempotent, 404, 422) plus 409/503 error mappings; sessionCache
tests for the archive-metadata clear (including the legacy Cursor
protocol default); React component test for the menu item rendering on
inactive vs active sessions; mutation hook test for the api wiring and
the ApiError surface needed by the UI.
Closes#819
Co-authored-by: Cursor <cursoragent@cursor.com>
* fix(reopen): address codex review findings on fork PR #33
Four P2 findings from the cold-review bot, three fixed and one explained:
1. Mutation now returns the reopen response so the UI can route to a possibly
different sessionId. SyncEngine.resumeSession may merge the row into a
freshly-spawned session id (matching the send-message resume flow); the
chat view now navigates there, the row list calls onSelect on the new id.
2. reopenSession on the client now goes through `request()` instead of a
hand-rolled fetch, so 401 + onUnauthorized refresh works the same as
every other session action. `request()` now throws `ApiError` (with
status/code/body) on non-401 errors - backward compatible because
ApiError extends Error.
3. (Reply only) Pre-#799 Cursor protocol propagates correctly without the
extra plumbing the bot suggested: `clearSessionArchiveMetadata` writes
`cursorSessionProtocol='stream-json'` to the DB; the CLI's
`bootstrapExistingSession` preserves it via `pickExistingSessionMetadata`;
if it's still absent at the launcher, `isLegacyCursorSession` defaults
to stream-json whenever `cursorSessionId` is present.
4. Archive metadata is now restored when resume fails. `reopenSession`
captures a snapshot of `lifecycleState`/`archivedBy`/`archiveReason`/
`lifecycleStateSince` before the clear; if `resumeSession` returns an
error (no machine online, spawn timeout, etc.), the snapshot is put
back via the new `SessionCache.restoreSessionArchiveMetadata`. Engine
test covers both the rollback and the no-rollback-on-success cases.
Error rendering helper moved to `web/src/lib/reopenError.ts` so the chat
header and the session row share one implementation, and gained a unit test.
Co-authored-by: Cursor <cursoragent@cursor.com>
* fix(web): preserve engine error codes in ApiError.code on /reopen
`/sessions/:id/reopen` returns `{ error, code }` where `code` is the stable
taxonomy (`no_machine_online`, `resume_unavailable`, etc.) and `error` is the
human-readable message. The generic `request()` error path was reading only
`parsed.error`, so `ApiError.code` ended up being a message like
"No machine online" rather than `no_machine_online`, breaking taxonomy-based
branching in web callers.
`parseErrorCode` now prefers `parsed.code` and falls back to `parsed.error`
for legacy routes that only set `error`. Added api/client.test.ts covering
the three response shapes /reopen actually emits (503 with code, 500 without
code, 422 with missing[]).
Addresses upstream codex-action review on tiann/hapi#826.
Co-authored-by: Cursor <cursoragent@cursor.com>
* fix(reopen): restore archive metadata exactly on rollback (drop fresh lifecycleStateSince)
For an archived session that predates `lifecycleStateSince` (the field is
absent from its metadata), `clearSessionArchiveMetadata` stamps a fresh
timestamp. If `resumeSession` then fails, the rollback was leaving that
fresh timestamp in place, making the rolled-back row look like it was
just archived rather than preserving the original lifecycle age.
`restoreSessionArchiveMetadata` now does an EXACT restore: when a snapshot
field is undefined the corresponding key on the metadata is deleted, not
left alone. Applies symmetrically to lifecycleState / archivedBy /
archiveReason / lifecycleStateSince. Test updated to assert the deletion
of the fresh timestamp.
Addresses upstream codex-action review on tiann/hapi#826.
Co-authored-by: Cursor <cursoragent@cursor.com>
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Co-authored-by: Cursor <cursoragent@cursor.com>
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