Surfaces two silent failure modes that the prior binary
"any-chunks-in-Qdrant ⇒ embedded" check could not distinguish from
healthy ingestion:
- **Warning A — Zero-chunk file** (file_size > 100 MB, chunks = 0)
Fires on video-only / image-only ZIMs (`lrnselfreliance_en_all`,
TED talks, etc.) that the pipeline completes "successfully" with no
extractable text. AI Assistant literally cannot reference these.
- **Warning B — Partial-embed stall** (chunks < 50% of expected from
the ratio registry). Surfaces the simple_wiki "266 of 600,000 chunks"
case observed during NOMAD1 ingestion testing — previously these
looked identical to fully-completed embeds in the UI.
Both warnings render only when their condition is met (silent by
default; noisy only on real problems).
## Stacks on #891
Base is `feat/kb-ratio-registry` (#891) because Warning B's "expected
chunks" estimate comes from `KbRatioRegistry.estimateChunks()`. GitHub
fast-forwards to `rc` once #891 merges.
## What lands
- `app/utils/kb_warning_decision.ts` — pure `decideWarnings(inputs)`
with thresholds (`100 MB`, `0.5×`) as exported constants. 10 unit
tests cover the healthy case, both warnings, the under/at/over
boundary, the registry-miss suppression, and the video-only registry
case (`expectedChunks: 0` correctly skips Warning B).
- `RagService.computeFileWarnings()` — single Qdrant scroll tallies
chunks per source, filesystem walk fills in zero-chunk files,
ratio registry estimates the expectation, decision function emits.
- New endpoint `GET /api/rag/file-warnings` returns
`Record<source, FileWarning[]>` (sources with no warnings are
omitted, so the frontend can `warnings[source] ?? []` for clean
defaults).
- KB modal: warnings render inline under the file name as amber-tinted
pills. Polled every 30s alongside the existing health check.
## Not in scope
- Warning C — chunks skipped due to length. PR #890 (#881 fix) prevents
the silent drop at the embed boundary, so the underlying condition
shouldn't fire anymore. If we still want to surface "we truncated
N chunks to fit", that needs separate `skipped_count` tracking in
EmbedFileJob — a Phase 2 follow-up.
- Suppressing Warning B during active mid-ingestion. The user can cross-
reference the Processing Queue to know it's in-flight; suppressing
warnings while a job runs would mask real stalls where the job died
mid-batch. Will revisit when per-card status is wired through.
- Use of `kb_ingest_state.chunks_embedded` (#888) as the chunk count
source. This PR uses Qdrant scroll directly so it can land
independently of #888.
## Tests
- 10 new unit tests on `decideWarnings`, all pass
- Type-check clean
- Hot-patch + browser smoke test deferred until #891 lands (the ratio
registry needs to exist in the DB for `estimateChunks()` to return
non-null estimates — without it, only Warning A fires which is still
useful but Warning B stays dormant)
Adds a check to RAG health to make sure nomad_qdrant is online, if not
then the user will be blocked from clicking any buttons in the KB modal
until they click the start qdrant button and let the container start
There is a new file qdrant_restart_policy_provider.ts, which tries to
ensure that the restart policy always exists for the nomad_qdrant
container even though the policy should have been there when the
container is created.
Chris Sherwood
Henry Estela
Luís Miguel
Jake Turner