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fix(fleet): remote session keeps its working rail + tab state after reopen (fleet-aware status re-seed) (#1766) - #1768
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jeonghun-jj-lee merged 6 commits intoOct 12, 2026
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October 12, 2026 09:32
…point 1) SessionOwnerMap.update() now also records each owned session's working directory from the same owner-tagged projection entry it reads the owner from (the entry's own `directory`, owner-tag fallback), byte-for-byte. resolveDirectory() never invents one: unknown, unowned, empty, or a pending create-time binding all resolve undefined. Existing owner-map behavior is unchanged.
…1766, checkpoint 2) New focused module fleet_session_status.ts: - resolution: ids (trim / drop-empty / de-dup, 64-id cap) + the live owner map → per-(owner, directory) query plan in request order (16-query cap) + unresolved (unknown / no-directory / over-cap); never invents a directory. - fan-out: each owner's /session/status?directory=<d> exactly once per distinct directory, reached as the fleet projection reaches it (local engine password or bare loopback; peer base URL + its own reader token; never the hub credential); concurrent, per-query timeout, 3 s overall deadline; entries validated against the engine's SessionStatus union; idle by absence for a successfully queried directory; honest omission + named per-source / per-directory reasons otherwise. Never throws. Gate: test/fleet_session_status.test.ts (49 cases).
…nt 3)
Registered on every boot under the never-proxied /amicode/fleet/*
prefix. It reads the live owner map of whichever branch built one (the
premium staged plane or the observation-only base peer) via hoisted
deps, assembling peers / tokens / trust / blocked identities per request
exactly as /amicode/fleet/sessions does. Where no fleet-peer provider /
owner map exists it answers 404 {ok:false, reason:"no-fleet-peers"} —
the app's silent-fallback signal — instead of the generic no-route 404.
Auth is the shared service gate (identical refusal to fleet/sessions).
Gate: test/amicode_service_fleet_session_status_route.test.ts (namespace,
auth parity, not-found without fleet peers on 3 boot shapes, live read
on both owner-map branches, empty request).
…ckpoint 4) - context/fleet-session-status.ts (pure, import-free): the route builder (one comma-separated `ids` param), the documented-shape parse (per-entry drop of invalid status / unresolved entries; whole-body fallback only for a non-documented top level), per-cause rate-limited diagnostics, and runFleetReseed: fetchedAt stamped before the request, 5 s client timeout, late-response discard, apply via the recency-guarded reconcile, or today's local /session/status re-seed (silent for 404 no-fleet-peers, diagnosed otherwise). - server-session: pinnedIds() + onPinned() (0 → 1 pin edge). - utils/amicode-fetch: amicodeGetResponse — amicodeGet's credential idiom, resolving status + body of a non-2xx (the not-served 404 names its reason). - server-sync: reconcileFromStatus sends the pinned ids to the fleet read; the old local re-seed is kept, unchanged, as the fallback. - manifest re-stamped (3 modified + 3 added overlay files). Gate: fleet-session-status.test.ts, amicode-fetch.test.ts, the extended #1637 reconcile tests in server-session.test.ts.
… checkpoint 5) - context/fleet-reseed-scheduler.ts (pure, injected timers): the connected-edge and sync-gap triggers, a debounced newly-pinned trigger, `unknown` retries (2 s, ≤3 per trigger), and the 10 s self-heal tick (connected + visible + pinned, served machines only). Single-flight with pending-flag coalescing; viewed session first, then least-recently- reseeded; diagnostics after 3 consecutive all-omitted re-seeds and for a partial failure persisting 3 re-seeds per (owner, directory); teardown clears every timer and cancels the in-flight read. Once the read answers 404 no-fleet-peers, the tick and pin triggers stand down (today's behavior); the edges still re-probe. - runFleetReseed: injectable timers + a teardown signal (cancelled outcome). - server-sync: the scheduler replaces the direct reconcile on the edges; session.onPinned feeds the debounced trigger; stopped on cleanup. - end to end, two halves bound by one import-free fixture: extension/test/fleet_session_status_e2e.test.ts drives the REAL route against a stubbed peer owner, asserts its answer equals the fixture, and runs it through the app's own parse (imported across packages); fleet-session-status.e2e.test.ts (bun) takes the fixture through parse + runFleetReseed + the real ServerSession reconcile → busy in the store. - manifest re-stamped (2 modified + 4 added overlay files). Gate: fleet-reseed-scheduler.test.ts (fake clock) + both e2e halves.
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📝 Walkthrough
Merge Risk: 🔵 Low · up to Remote sessions should now keep their working status after reopening. One bounded inefficiency remains: if a pinned tab points to a session that no longer resolves, the app re-queries fleet status about four times as often as intended. It is mergeable with that small follow-up. Pre-merge checks |
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| Check name | Status | Explanation | Resolution |
|---|---|---|---|
| Docstring Coverage |  |
Docstring coverage is 77.14% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 35 functions across 18 files. (1 skipped:… | Write docstrings for the functions missing them to satisfy the coverage threshold. |
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Check name Status Explanation Title check The title clearly identifies the main change: fleet-aware status re-seeding that restores remote session working state after reopen. It is slightly long but specific and relevant. Description check The description links issue #1766, explains the problem and solution, documents scope and risks, and provides detailed verification results. It omits the template's Type of Change checklist, but the m…Linked Issues check Issue [ #1766] requires a fleet-aware authenticated status read, exact owner-directory queries, bounded concurrent fan-out, honest omission on unavailable coverage, and app fallback behavior. The servi…Out of Scope Changes check The changes stay within issue [ #1766]. The owner-map directory tracking, authenticated fetch helper, route registration, app reconcile and scheduler wiring, fixtures, tests, and manifest updates suppo…
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jeonghun-jj-lee
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October 12, 2026 14:16
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Review comments at
@packages/app-bundle/overlay/packages/app/src/context/fleet-reseed-scheduler.ts:
- Around line 111-115: Update the retry-budget reset in `observe` so only
`"edge"` and `"pin"` events clear the retry timer and restore `retriesLeft` to
`unknownRetryMax`; `"tick"` events must preserve the remaining budget. Add a
scheduler test for an always-unknown pinned id verifying that subsequent ticks
perform only one read per interval.
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packages/app-bundle/manifest.jsonpackages/app-bundle/overlay/packages/app/src/context/fleet-reseed-scheduler.test.tspackages/app-bundle/overlay/packages/app/src/context/fleet-reseed-scheduler.tspackages/app-bundle/overlay/packages/app/src/context/fleet-session-status.e2e-fixture.tspackages/app-bundle/overlay/packages/app/src/context/fleet-session-status.e2e.test.tspackages/app-bundle/overlay/packages/app/src/context/fleet-session-status.test.tspackages/app-bundle/overlay/packages/app/src/context/fleet-session-status.tspackages/app-bundle/overlay/packages/app/src/context/server-session.test.tspackages/app-bundle/overlay/packages/app/src/context/server-session.tspackages/app-bundle/overlay/packages/app/src/context/server-sync.tsxpackages/app-bundle/overlay/packages/app/src/utils/amicode-fetch.test.tspackages/app-bundle/overlay/packages/app/src/utils/amicode-fetch.tspackages/extension/src/amicode_service/fleet_session_status.tspackages/extension/src/amicode_service/index.tspackages/extension/src/amicode_service/session_multiplexer.tspackages/extension/test/amicode_service_fleet_session_status_route.test.tspackages/extension/test/amicode_service_multiplex_owner_routing.test.tspackages/extension/test/fleet_session_status.test.tspackages/extension/test/fleet_session_status_e2e.test.ts
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The cold-owner-map retry budget is per TRIGGER (connected edge, sync gap, new pin). Re-arming it on every 10 s self-heal tick made a permanently unknown pinned id (a tab for a deleted session, or for a peer that stopped serving) cost the tick's read plus three retries each interval: about four fleet reads per 10 s instead of one. Only edge and pin runs re-arm now. RED first: the new test measured 12 reads over 3 intervals before the fix, and 3 after it. Found by CodeRabbit review on PR #1768.
This was referenced Oct 13, 2026
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aarontrowbridge
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Oct 18, 2026
…4 re-render cycle was the 4-second screen spazzing The free-tier-fleet surfaces (#1766/#1768) poll /amicode/fleet/sessions and /amicode/fleet/session-status every ~4 seconds. The hub doesn't serve them; each 404 triggered a fetch-error re-render in the panel — the visible 'screen spazzing every 4 seconds.' Empty success shapes stop the flicker; real data arrives with #1803's reconciliation (the surfaces render live data or render nothing, and until the feeds exist they get honest empties, not error cycles).
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Closes #1766.
What
When you reopen Amicode while a session owned by another machine in the fleet is still running, the session's entity rail and its tab now come back showing it as working. Previously they read idle until the turn ended. This is worst during long shell commands, because a shell tool streams no text and so nothing re-raises the rail's working floor.
Root cause. Peer session status reaches this machine only through the live event fan-in, which does not replay on reconnect. The reconnect re-seed (#1637) asked only the local engine, and asked without a directory. The engine keeps status per directory and resolves a directory-less read to its own temp working directory, so the re-seed returned
{}for every real session.Fix.
GET /amicode/fleet/session-status?ids=…sits in the never-proxied fleet namespace. It resolves each pinned session's owner and directory from the live owner map, queries each owner's/session/status?directory=<d>concurrently under a 3 s deadline, and returns a tri-state map with per-owner and per-directory honest-absence records:Checkpoint commits:
Verification (director-run, not self-reported)
tsc --noEmit./src/contextsweep: failure setLive end-to-end probe (read-only, real owner map projecting 2,024 sessions across both machines, real local engine and real peer):
~/harmoniqs/Legatissimo.jl) came backbusy. The old directory-less re-seed returned{}for it.jjs-mac-studiocame backidle; its directory answered.unresolved: unknown, and no query was sent for it.Hygiene: the SSE fan-in aggregator, its driver, the composite cursor, and the engine and schema overlays are all untouched. No
.only,.skip,.todo,xitor@ts-ignorewas added, and no test lines were deleted.Honest notes for the reviewer
feature/free-tier-fleet:ServerSession live file-edit route › an evicted session can invalidate again…(adiff_versioneviction assertion)sync optimistic reducerscases404 {ok:false, reason:"no-fleet-peers"}, which the app treats as a silent fallback; they never get the generic no-route 404. The neighbouring H3 byte-identity and boundary suites still pass.FSUtil.resolve(directory)for both the turn and the status query, so the key is shared. There's no engine-side echo of the resolved directory to verify against.jjs-mac-studio, checking the rail dot and the tab indicator. The live probe covers the service read end to end; the UI path is covered by unit tests and the realServerSessionreconcile in the e2e test.Base is
feature/free-tier-fleet(where the fleet code lives), notmain.Summary by CodeRabbit