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Until now, modules wanting to use the orchestrator had to await each
LLM call inline in their store code. That's fine for foreground tasks
("user clicked summarize") but a non-starter for background work
("auto-tag every new note", "generate a title for every voice memo
after STT finishes"). Background tasks need to:
- Queue up while no LLM tier is ready, then drain when one becomes
available (e.g. user just enabled the browser tier from settings)
- Survive page reloads, browser restarts, and the user navigating
away mid-execution
- Run one at a time without blocking the foreground UI
- Allow modules to subscribe to results reactively without polling
- Retry transient failures (network, model loading) but not
semantic ones (tier-too-low, content blocked)
Phase 4 ships exactly that.
Architecture:
packages/shared-llm/src/queue.ts — LlmTaskQueue class
+ QueuedTask interface (the persistent row shape)
+ EnqueueOptions (refType/refId/priority/maxAttempts)
+ TaskRegistry type (name → LlmTask map)
+ LlmTaskQueueOptions (table + orchestrator + registry +
retryBackoffMs + idleWakeupMs)
Public API:
- enqueue(task, input, opts) → string (returns the queued id)
- get(id), list(filter)
- retry(id), cancel(id), purge(olderThanMs)
- start(), stop() (idempotent processor lifecycle)
apps/mana/apps/web/src/lib/llm-queue.ts — web app singleton
- Dedicated `mana-llm-queue` Dexie database (separate from the
main `mana` IDB; see comment for the rationale: ephemeral
per-device state, no encryption needed, no sync needed, doesn't
belong in the long-frozen `mana` schema)
- Wires up the queue with llmOrchestrator + taskRegistry
- Exposes startLlmQueue() / stopLlmQueue() for the layout hook
apps/mana/apps/web/src/lib/llm-task-registry.ts
- Maps task names → task objects so the queue processor can
look up the implementation when pulling rows off the table.
Closures can't be persisted, so we round-trip via name.
- Currently registers extractDateTask + summarizeTextTask;
module-side tasks land here as we add them.
apps/mana/apps/web/src/routes/(app)/+layout.svelte
- startLlmQueue() in handleAuthReady's Phase A (auth-independent)
so guests + authenticated users both get the queue
- stopLlmQueue() in onDestroy as a fire-and-forget cleanup
Processor loop semantics (the heart of the implementation):
1. On start(), reclaim any 'running' rows from a crashed previous
session — reset them to 'pending'. The orphan recovery is the
reason a crash mid-task doesn't leave the queue stuck.
2. findNextRunnable() picks the highest-priority pending task whose
`notBefore` (retry-backoff timestamp) is in the past. Sort key:
priority desc, then enqueuedAt asc (FIFO within priority).
3. Mark the task running, increment attempts, look up the LlmTask
in the registry, hand it to orchestrator.run().
4. On success: mark done, store result + source + finishedAt.
5. On error:
- TierTooLowError or ProviderBlockedError → fail immediately,
no retry. These are not transient — the user's settings or
the content itself need to change.
- Anything else → if attempts < maxAttempts, reset to pending
with notBefore = now + retryBackoffMs (default 60s). Else
mark failed.
6. When no work is pending, sleep on a Promise that resolves when
either (a) someone calls enqueue() (which fires notifyWakeup),
or (b) idleWakeupMs elapses (default 30s, safety net for any
missed wakeup signal).
Module-side reactive reads use Dexie liveQuery directly on the queue
table — no special subscription API on the queue itself. This is
consistent with how every other Mana module reads its data, so the
mental model stays uniform:
const tags = useLiveQuery(
() => llmQueueDb.tasks
.where({ refType: 'note', refId, taskName: 'common.extractTags' })
.reverse().first(),
[refId]
);
Smoke test: a new "Queue" tab in /llm-test lets you enqueue the
existing extractDate / summarize tasks and watch the live state of
the queue table via liveQuery. The display includes per-row state
badge (pending/running/done/failed), tier source, attempt count,
input/output, and a "Done/failed löschen" button that exercises
purge().
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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| .. | ||
| cards-database | ||
| credits | ||
| eslint-config | ||
| feedback | ||
| help | ||
| local-llm | ||
| local-store | ||
| notify-client | ||
| qr-export | ||
| shared-api-client | ||
| shared-auth | ||
| shared-auth-ui | ||
| shared-branding | ||
| shared-config | ||
| shared-drizzle-config | ||
| shared-error-tracking | ||
| shared-errors | ||
| shared-go | ||
| shared-hono | ||
| shared-i18n | ||
| shared-icons | ||
| shared-landing-ui | ||
| shared-links | ||
| shared-llm | ||
| shared-logger | ||
| shared-pwa | ||
| shared-python/manacore_auth | ||
| shared-splitscreen | ||
| shared-storage | ||
| shared-stores | ||
| shared-tags | ||
| shared-tailwind | ||
| shared-theme | ||
| shared-theme-ui | ||
| shared-tsconfig | ||
| shared-types | ||
| shared-ui | ||
| shared-uload | ||
| shared-utils | ||
| shared-vite-config | ||
| spiral-db | ||
| subscriptions | ||
| test-config | ||
| wallpaper-generator | ||