getBaseSystemPrompt appended the directive, then each metric module
appended its own section after it, so the directive was no longer the
last instruction the model reads - the one property that makes it
authoritative. The base now exposes its body, and every composing module
wraps the finished prompt so the directive ends it.
Also drops a duplicate import that survived the merge of the two prompt
branches.
The deterministic fact-pattern pass fell back to German when no locale was
passed, the same de-default polarity the narrative surface just lost. Fact
text is model-facing memory, so English is the fallback for every locale
without a reviewed body; German stays for German readers.
Also correct the InsightNarrative.locale doc comment — the column holds any
shipped UI locale, not just de/en. Comment only, no SQL change.
The derived batch grid carries only the deterministic assessment, whose
templates ship de/en bodies. Its `locale === "de" ? "de" : "en"` was
correct but indistinguishable from the accidental binaries that were just
removed; route it through instructionLocale so the intent is explicit.
Behaviour unchanged.
Three layers. The German and English narrative prompts are frozen by content
hash, normalised for the prompt-version string that a prompt change is
required to move — any other drift fails. The four riding locales must name
their language, carry the verbatim reply-language directive from their own
safety-contract file as the last instruction, and contain no German-body
sentinel. A generator-level test drives a French run end to end and asserts
the row is keyed fr, the cache action is locale-scoped, and the system prompt
reaches the provider in English with the French directive.
Alongside it a source-level ban on the exact shape the bug took
(`=== "en" ? "en" : "de"`, `?? "de"`) across the coach and narrative
surfaces, with a self-check so a typo in the pattern cannot turn the guard
into a silent pass, and coach-memory recall cases for all four locales.
Covers the assertion that would have caught the narrowing: normalizeLocale
passes all six locales through and defaults an unknown value to English, the
de/en cache keys stay byte-identical while the four widened locales get their
own, and a fr locale entering a status generator reaches the prompt builder
as fr and writes the fr cache row. The forced-warm case pins the same for the
comprehensive and per-status warms.
Holds every sibling prompt module to one invariant: strip the directive
and the interpolated language name out of a French, Spanish, Italian or
Polish prompt and what remains is the English prompt, byte for byte. A
German instruction body leaking back into a non-German prompt, an
English body drifting away from what the four locales receive, and a
module appending a second directive on top of the one the base prompt
already carries all fail here.
Also drops the now-unused narrow locale alias from the two modules whose
prompt builders take the full locale.
The narrative read route narrowed every non-English locale to German, so a
French, Spanish, Italian or Polish account read the German narrative row and
warmed it from the German prompt body. Carry the resolved locale through
instead: the row is keyed (user, period, locale) across the full UI locale
union, and the four locales now compose the English instruction body with
their language named and the locale's own reply-language directive appended
last. The German and English prompts are unchanged apart from the version
string.
The nightly warm keeps the user's stored locale for the same reason — it has
to write the key the read route reads — and the coach and dashboard narrative
recalls read that same key. Coach memory stays de/en: it is model-facing
context, not user-facing prose, so the four locales compose and key English
rather than German.
NARRATIVE_PROMPT_VERSION 1.13.0 -> 1.14.0.
The per-metric assessment pipeline typed every locale as `de | en` and
narrowed on the way in, so a French, Spanish, Italian or Polish account
never reached a prompt with its own locale — the output-language directive
could not fire and the reader got English, or German where the binary
defaulted that way.
Widen `SupportedLocale` to the six locales the UI ships and replace the
narrowing binaries with one validating `normalizeLocale` that passes a
recognised locale through unchanged and defaults an unknown value to
English. The status-generate payload, status batch, status cache,
comprehensive generation, the pre-generate warm passes and the forced-warm
handlers all carry the full locale now.
Fix the collapse sites that discarded it: the warm enqueue on the
comprehensive route and the pregenerate route, the nightly batch cron, and
the forced-warm job handler — the last two defaulted to German outright.
The deterministic derived-score templates and the previous-context block
ship de/en bodies only, so they route through `instructionLocale` (German
for German readers, English otherwise) while the prompt names the reader's
own language.
The derived-score archetype and the Coach preference overrides branched
on the raw locale, so fr/es/it/pl composed German instruction text. Both
now route through `instructionLocale`. The score archetype rides on
`getBaseSystemPrompt` and therefore appends no directive of its own —
the base prompt already carries it.
The biomarker assessment is the one prompt in the family that does not
compose the base scaffold, so it appends the reader's directive itself;
the append collapses into the shared path once that prompt moves onto
the base scaffold.
The two prompt builders in each of those modules now take the full
`Locale` rather than the narrowed de/en alias, so the routing is right
the moment the pipeline stops collapsing the four locales on the way in.
Also targets the output-language contract test's regex at the compile
target instead of the dotAll flag, which does not compile.
German and English prompts are unchanged, byte for byte.
The per-metric system and user prompt builders branched
`locale === "en" ? EN : DE`, so a French, Spanish, Italian or Polish
reader composed the German instruction body — whose output clause asks
for German prose. Route them through `instructionLocale` instead, so
German is the only locale that takes the German body and everyone else
takes the English one plus the reader's own output-language directive
already carried by the base prompt.
The German and English prompts are unchanged, byte for byte.
The parity test joined raw fragments, which no longer matches now that
the English output clause carries a language token; it substitutes the
expected name from a literal map instead of from the module under test.
Adds the contract test: which body each locale composes, that its own
language is named, that its own translated directive is present and
last, that no German reaches a non-German prompt, and that no two
locales collapse to the same prompt. What it cannot show - whether the
prose reads well in the four languages - is stated in the file.
getBaseSystemPrompt collapsed every non-English locale to the German
instruction body, whose output clause asks for a German assessment. A
French, Spanish, Italian or Polish reader therefore received German
prose on any surface that reached this prompt.
Those four locales now compose the English instruction body with their
language named in the output clause, and the locale's own reply-language
directive - already carried in production by the native insights and
briefing prompts - appended last. German and English compose exactly as
before, byte for byte.
Adds the shared output-language helper the remaining prompt modules
adopt, replacing the scattered en-or-else-German binaries.
The voice rule states that commits are authored by the maintainer's git
identity alone. Editors and CLIs append co-author trailers and session
links by default, and once such a line is in the object store only a
history rewrite removes it — so enforce it before the commit exists.
The guard rejects tooling co-author trailers, session links, and
generated-with lines; human co-authors and ordinary messages pass.
Move the workouts list read into a shared cached module so the RSC
wrapper and GET /api/workouts share one deduplicated projection pass,
and dehydrate it under the client cell's exact query key so the page
paints its rows instead of a loading skeleton.
Correct the aggregated heart-rate externalId documentation: the example
and the min/max field notes still described the original hourly bucket,
while the accepted contract has been 10-minute buckets since v1.30.7.
Extend the dashboard's RSC server-prefetch pattern to three more route roots
so their above-the-fold content paints populated on first load instead of
flashing a shell that fills in on mount.
Each route gains a thin RSC wrapper that runs the same cached read its API
route uses, dehydrates the result under the exact client query key, and hands
it to the client leaf through a HydrationBoundary. Every wrapper fails soft to
today's client-fetch path on any error and honours the DASHBOARD_SSR_PREFETCH
kill-switch the e2e server sets.
- /insights: prefetch the dashboard snapshot — the same locale-keyed cell the
dashboard warms, resolved once server-side so the key matches by
construction. The AI briefing and the heavy analytics aggregations stay
client-lazy (the briefing must never trigger generation; a cold analytics
read would trade FCP for TTFB).
- /medications: prefetch the medications list through the shared
caches.medications cell (extracted to src/lib/medications/list-read.ts). The
list cell keeps refetchOnMount: "always" — a cross-device take/skip produces
no client mutation event, so the mount refetch is a correctness gate; the
prefetch removes the initial skeleton flash without dropping that guarantee.
- /coach: prefetch the nudge status (extracted to
src/lib/ai/coach/nudge-status.ts) so the auto-open-most-recent decision is
ready at hydrate, collapsing the one sequential waterfall. Only runs when the
Coach surface is reachable; the streaming conversation is never warmed.
Add per-route tests pinning server-key === client-key, JSON wire-shape
round-trip, and the fail-soft / module-gate paths. Repoint the source-reading
insights, take-all-due, and Coach gate-cascade tests at the client leaves.
Two additive indexes on medication_intake_events: (user_id, scheduled_for)
for the sibling reads that filter without medication_id, and
(user_id, medication_id, taken_at) for the per-medication last-taken
group-by that scanned the whole intake history on every dashboard load.
Additive migration 0253, no data change, no behaviour change.
Adversarial review found the transport gate (isCookielessNativeCaller) was
broader than finishLogin's bearer predicate: a blank-UA caller with no
X-Client-Type could pass it and fall into the cookie branch, receiving a
Set-Cookie session instead of the token bundle (inert, not exploitable, but
the endpoint's own invariant was false). Also require isNativeClientRequest
so the cookie path is structurally unreachable here, and report the actual
revoke outcome on a replay so the wide event never overclaims.
Unit-test the handoff library (mint stores only the hash + binds the
challenge + 90s TTL; consume covers not-found / replay-with-revoke /
expiry-burn / PKCE-burn / atomic consume / lost-race), the
token-exchange route (rate limit, transport gate, one identical generic
401 across every invalid-code class, success with issued-hash stamp +
audit, and OIDC_ONLY does not block it), the callback native branches
(handoff mint + scheme redirect with no session, MFA ticket on the
scheme with no session/cookie, post-identity + IdP errors to the
scheme, CSRF web-fallback), the login native-param handling, and the
by-hash refresh-token revoke used for replay containment.
The web OIDC flow ends in a session cookie the Bearer-transport native
client cannot consume, so on an OIDC_ONLY instance the iOS app had no
sign-in. Add a native leg: the app opens the login URL with
client=native and its own PKCE S256 challenge inside an in-app browser;
the callback resolves identity exactly as before, then mints a one-time
handoff code and 302s to the fixed compiled-in scheme
healthlog://oidc-callback (or hands back the existing MFA ticket when
the account has a second factor). The app exchanges the code plus its
PKCE verifier at POST /api/auth/oidc/native/token for the standard
native token bundle.
The return address is a compile-time constant — no redirect_uri
parameter and no env allowlist, so the open-redirect / scheme-hijack
class is removed by construction. The native flag and app challenge
travel only inside the AES-256-GCM state blob, so a network attacker or
the IdP cannot flip a web login into a native one. The handoff code is
256-bit CSPRNG, HMAC-hashed at rest, 90-second TTL, single-use via a
guarded consume; a failed PKCE check burns it. A replay of a consumed
code revokes exactly the pair the first exchange issued. The token pair
never rides a URL; only the opaque code or the MFA ticket do. The SSO
login can never satisfy requireFreshMfa step-up — the transport is
Bearer and step-up is cookie-only.
Adds the OidcNativeHandoff model (migration 0252), the token-exchange
route, a daily cleanup sweep, and the OpenAPI entry.
The correlation-narrative localisation replaced the env-channel narration
labels (which read through getEnvironmentField().narrationLabel) with the
localised insights.correlation.channel.ENV_* keys, leaving these two helpers
dead.
The detail surface at /insights/workouts/[id] gains a real heart-rate
curve, effort zones, an aspect-true GPS route, and per-kilometre splits
— all read from data already stored, no new integration, no migration.
- HR curve: one server path with strict provenance — stored
WorkoutSamples series first, a raw-PULSE window reconstruction second
(quality-gated so sparse data hides rather than lies), nothing third.
Adaptive bucketing keeps on-screen density constant across a 20-minute
HIIT and a 6-hour ride; a min/max envelope surfaces intervals.
- Effort zones: five %HRmax bands via the Tanaka HRmax, with a device's
own reported time-in-zone winning when present. Descriptive only.
- GPS route: self-rendered inline SVG with an equirectangular
cos(midLat) longitude correction (fixes the ~40% horizontal stretch),
aspect-clamped viewBox, RDP downsampling, start/end markers, and an
optional elevation profile. Nothing leaves the origin — no map tiles.
- Per-km splits and a GPX export, both derived client/server-side from
the geometry already on the payload.
- The endpoint extends additively (hrSeries, zones, splits, sportContext,
a reserved insight seam) behind an opt-in compact=1 param that drops
the raw sample/timestamp blobs for the web client; without the param
the response is unchanged.
- Every data-less section now hides instead of rendering an empty card;
the growing detail component is split into a workout-detail/ directory.
- List rows flag which sessions open into a rich detail.
The generated-insight narrative layer built its user-facing sentences by
string interpolation and never routed through the i18n bundle, so a
non-English UI rendered English text spliced into localised copy — e.g.
"Higher activity steps tends to go with lower next-day weight" surfacing
mid-German on the Weight insight. Because those strings bypassed t(), the
locale-integrity guard could not catch them.
Route every correlation narrative through the server translator:
- Correlation discovery (daily lagged pairs + labs-vs-outcome) now takes
the reader's locale, resolved from the correlations route the same way
other insight generators resolve it. Sentence templates, the direction
word, and every channel label live under a new insights.correlation.*
namespace, translated in de/en/es/fr/it/pl. The three fixed hypotheses
(BP-compliance, mood-pulse, weight-weekday) and their weekday labels are
localised the same way; the analytics cache key now includes the locale
so a language switch cannot serve another locale's cached text.
- Metric labels resolve to stable localised channel labels; the never-
causal framing ("not a cause" / "an association, never a cause") and the
faint/moderate/high hedging tiers are preserved in every language.
English output is byte-for-byte unchanged. Adds a regression test pinning
German narration and asserting it is not the English string.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018V8V9qapgHi7fhgtMJ8SkM
Legacy mode (snapshot flag off) keeps its browser-local batch window
unchanged — the profile-tz window + series prefetch run only in snapshot
mode where a byte-identical dehydration key exists.
Kill the above-the-fold first-load flash on `/`: the hero digest and the
batched chart series still fired client-side after JS download + hydrate,
so the hero and charts painted empty and filled in seconds later (LCP
~5.5 s mobile-throttled while the snapshot already dehydrated).
Extend the existing `page.tsx` snapshot prefetch to also seed the daily
digest and the chart series batch into the same dehydrated TanStack cache,
under keys byte-identical to the client's:
- Extract the series-batch route core into `readSeriesBatch(...)` so the
RSC and the route share one code path (no HTTP-to-self); the route thins
to auth + Zod + the shared reader, behaviour unchanged.
- New client-safe pure module `batch-chart-types.ts`: `deriveBatchChartTypes`
(the single implementation of the visible-with-data type-set derivation,
order + resting-HR-vs-pulse pick preserved) and `computeBatchWindow`
(profile-tz end-of-day minus the coverage window). Server and client run
the same function over the same snapshot payload, and the window is
computed once server-side and threaded to the client as a prop, so the
`chartSeriesBatch` key matches on both sides by construction.
- Render the hero data-first so the SSR HTML carries the populated hero
(the LCP element) — hydration-safe because the digest is dehydrated and
never restored from the IndexedDB persist allowlist; bound that invariant
with comments on both the hero gate and the allowlist.
- Warm the shared chart-runtime chunk during hydration.
Both prefetches honour the `DASHBOARD_SSR_PREFETCH=false` escape and fail
soft to the client-fetch path on any error; a ~400 ms soft budget bounds
the cold-day digest cost. No contract change, no visual change.
Two data-integrity gaps found in review of the v1.30.7 contract:
- The bucket externalId guard accepted a non-canonical timestamp that V8
silently rolls over (T24:00, 04-31, non-leap 02-29). Such a row would key
under a literal string the canonical client never emits, so the two would
never collapse on the overwrite key, and it would plot on the wrong local
day. Require canonical round-trip (toISOString() === suffix) in both the
guard and the bucket-start parser.
- The per-bucket min/max bypassed the plausibility-range guard that value
passes; now that they drive the DAY min/max band and the intraday envelope,
an out-of-range or mis-ordered spread poisoned the aggregate. Persist the
spread only when both extremes are in range and ordered around value;
otherwise drop to null and keep the average.
Refine the go-forward aggregated HR wire contract (iOS #34) from the never-
adopted hourly bucket to a 10-minute UTC bucket, so one contract serves both
the measurements-list de-explosion and the intraday-pulse 10-min curve.
- Batch route accepts stats:HKQuantityTypeIdentifierHeartRate:<10-min ISO-Z>
with avg + min/max, overwrite semantics, malformed-suffix rejection; the
validator is identifier-generic (allowlist) so respiratoryRate/SpO2 can join
later without a grammar change.
- The intraday reader classifies a day's PULSE rows three ways by externalId
shape (raw / uploaded 10-min bucket / server-folded hourly), builds the
10-min curve directly from uploaded buckets with the min/max envelope and
tension detection enabled, and overlays buckets over raw on the one
cutover-straddling day.
- DAY rollup min/max read COALESCE(value_min, value) so a bucket-native day's
band reflects the true intra-bucket extremes.
No schema change (value_min/value_max exist since v1.19.2). Reconciliation is
go-forward cutover; the nightly retention fold handles the raw backlog.
The target-summary and coach-read strip tiles sit directly under a
metric sub-page's h1, alongside the stat strip that already renders its
title as an h2. Render their titles as real h2 headings too via the
existing titleAs prop, so heading navigation lands on each section. A
test pins that the dashboard exposes its page-level h1 through the
shared page header (no duplicate sr-only heading needed).
The mood and medication-compliance heatmaps exposed per-day values only
through pointer tooltips. The cells now carry a visually-hidden day list
beside the grid — one entry per day that holds a value — so a screen
reader reaches the same figures without a tab stop per cell. A cell
subtree nested under the SVG's aggregate role=img is pruned from the
accessibility tree anyway, and a year-long grid would otherwise flood
the keyboard order; the rects stay a pure pointer affordance and the
aggregate summary label is unchanged. Tests pin the list and that the
cells carry no tab stops.
Marc-André Bombeck