The comment claimed the average-per-night, sleep-debt, and chronotype
cards share one window and cannot disagree. They each read their own
sub-window — the average over the full scorable span, sleep-debt over
its trailing 14 nights, chronotype over CHRONOTYPE_WINDOW_NIGHTS — so
the figures are each internally honest rather than identical, and every
card's caption discloses its own nightsCounted. State that plainly; no
computation changes.
Compute the mean asleep minutes per night from the same canonical
per-night data the sleep-debt and chronotype cards read, exposed as a
new averagePerNight field on the sleep-rhythm DTO. Surface it as a third
peer card with identical chrome, so the three tiles sit side by side.
Calm partial state under a four-night floor; localised in six locales.
The cumulative model summed every nightly deficit over a 14-night window
with no credit for catch-up sleep, so a sleeper a modest amount short on
most nights carried hours of standing debt that never recovered while the
pattern held. Replace it with a running balance over a 5-night window:
short nights add their capped shortfall, nights above need pay the balance
down at a sub-linear recovery rate, floored at zero. The headline now
reflects what is still owed tonight and shrinks as the sleeper catches up.
Oura's daily_resilience collection reports a categorical level — limited,
adequate, solid, strong, exceptional. Encode it ordinally (limited=1 …
exceptional=5) into the numeric measurement value so it fits the existing
model with no new categorical column: add the RESILIENCE measurement type
(migration 0186), fetch and map daily_resilience in the Oura sync, and skip
an unknown or missing level rather than coercing it to zero.
RESILIENCE_LEVELS in the Oura client is the single source of truth for the
encoding. The day-keyed externalId keeps a re-sync idempotent so a re-scored
day overwrites in place. Extend the measurement-type label, unit, range,
category, chart-token, and PR-direction maps; add the metric label across all
six locales.
The comprehensive briefing's bounded feature read (extractFeatures) was
paid more than once where it should not be: the on-demand route and the
shared generator each run a downgrade ladder that re-reads with identical
arguments, and a nightly warm has no shared object across consumers in a
single tick.
Add a request/run-scoped feature cache: withFeatureCacheScope opens an
AsyncLocalStorage store, getCachedFeatures memoises the first compute per
(userId, day, includeRaw, sinceDays), gated on a cheap salient-input
fingerprint so a mid-scope ingest recomputes and a probe failure fails
safe. Outside a scope it is a pure passthrough. Wired into the
comprehensive generator, the on-demand POST handler, and the nightly
per-candidate loop + forceWarmUser. Coach keeps its own snapshot.
The slow-moving status input fingerprint covered the card's own metric
rows plus mood and height, but not the FDR discovery channels that also
feed the prompt via getRelevantCorrelationsForMetric. A correlation
newly surfacing off a behaviour channel (e.g. daylight -> next-day
weight) left the card's own rows untouched, so the input gate re-stamped
the stale assessment and the discovery never reached the prose.
computeStatusInputFingerprint gains includeCorrelationChannels: it widens
the same grouped probe by the discovery behaviour + outcome channels
(deduped, mood excluded as it is mood-entry backed), so a channel change
flips the hash. Wired into weight-status, the one caller that folds a
relations block.
Weight and BMI move on a weekly cadence, but the per-metric generators
rebuilt the full snapshot (bounded findMany + per-series rollup reads +
correlation math) every day and relied on the post-build content-hash gate
to skip only the model call. Add an input gate that runs first: a single
grouped probe over the salient inputs (per-type count + newest reading, plus
mood for weight and the profile height for BMI) fingerprints what the
snapshot would read. On a non-forced run whose fingerprint matches the cached
row, the cached assessment is re-stamped under today's key and the whole
build is skipped. A miss falls through to the normal build and the existing
post-build gate.
Consent is checked before any re-date so a revoked-consent user never has
stale text presented as current. Forced runs never gate but still record a
fresh fingerprint for the next day.
The warm narrow query and the cold heavy query each referenced the
canonical-source subquery twice — once in the window_stats CTE and once in
the outer body — so the DISTINCT-ON pick over the live 90-day rows ran twice
per rebuild. Extract canonicalMeasurementsCte (the SELECT body without the
alias wrapper), bind it once as WITH cm AS (...), and select FROM cm m from
both window_stats and the outer aggregate. Output is identical; the dominant
self-join runs once.
canonicalMeasurementsFrom now wraps the same body, byte-stable for the
single-reference call sites (pinned by a new parity test).
Bound the comprehensive briefing's feature read to a 400-day window instead of
walking the full measurement history on every generation. All-time min/max/avg
are sourced from one grouped aggregation over the whole history, so the
allTime* fields stay honest while the unbounded row materialisation is gone;
the oversize downgrade ladder remains as the safety net.
Fold illness-episode and cycle state into the briefing prompt, reusing the
server-authoritative builders the Coach already assembles. Both are
module-gated and cost nothing for users without them, so a mid-illness or
mid-cycle user finally gets context-aware prose.
The readiness same-day grouping and the mood-streak anchor/walk both
sliced the UTC instant for their day key, mis-bucketing a late-evening
reading for a logger east or west of UTC. Thread an optional tz (default
Europe/Berlin) through both paths and key the buckets via userDayKey so
the day boundary follows the user's wall clock. Centralise the inline
day-in-ms literal in a shared time-constants module and use it here.
Ground daily-briefing numbers against the signal features, guard Coach replies
against fabricated doses and risk scores, gate the period narrative, feed the six
status cards a precomputed signal block, add SSE cancellation, and cap the Coach
snapshot read.
BP, pulse, weight, BMI, mood and medication-compliance still asked the
model to derive the recent-vs-baseline comparison from raw buckets — the
exact arithmetic small models do unreliably, and the pattern the
base-system prompt already advertises as precomputed.
Build the SIGNAL block (current / baseline / signed delta / normal-swing
verdict) with buildMetricSignal from each card's graded series and inject
it into the snapshot; BP carries two signals, compliance one per
medication. Each card's prompt section now leads from the signal block
and is told to state, not recompute. The server-computed compliance %
is unchanged.
The period narrative was written straight to storage with no
post-generation check and no corrective retry, unlike Comprehensive
Insights. A populated context could still yield causal phrasing or a
number absent from the context block.
Add a validator that flags causal language (EN/DE) and any number not in
the structured context; on a trip, retry once with a corrective suffix,
then write nothing (the last good row stays) rather than persist an
ungrounded or causal story.
The daily-briefing block (paragraph / signalsOfDay / keyFindings) was
schema-shaped but never number-checked the way recommendations[] are: a
restated figure could drift from the snapshot with no server rejection.
Add a grounding cross-check that asserts every number the briefing prose
states traces to a features.signalsOfDay figure (latest / avg / delta)
within a rounding tolerance. Wire it into both generation sites with one
corrective retry, then strip the briefing rather than persist a
fabricated number. Also gate the higher-temperature paragraph reroll on
the same check so a phrasing reroll cannot drift a figure.
The raw BP pulls in the comprehensive aggregator and the bp-in-target live
fallback read every source's row for BLOOD_PRESSURE_SYS/DIA. BP is a
multi-source metric — a Withings reading mirrored into Apple Health is two
rows for one event — so each shared reading was counted twice in the
in-target denominator and twice in the recency-weighted grade. The rollup
branch of the same fast-path reads source-collapsed measurement_rollups, so a
rollup-warm account and a rollup-cold account returned different BP
percentages and grades for identical data — a web/iOS and cold/warm parity
break.
Route both raw pulls through canonicalMeasurementsFrom so the cold/live path
picks the ladder-winning source per (type, day), matching the warm/rollup
path. Per-event rows of the winning source survive the collapse, so the
downstream 5-minute pairing still sees individual readings.
One-shot prettier pass so the new format:check gate starts from a clean
baseline. Formatting only — no behaviour change. Generator-owned and
vendored artifacts stay untouched via .prettierignore.
Prove one provider call covers every present metric, absent metrics are
omitted from the prompt and never fabricated, an all-served cycle makes no
call (the per-metric hash gate still short-circuits), and the batch degrades
gracefully: an omitted metric or a provider error falls each affected card
back to its single-card path, invalid JSON retries once, and a no-provider
cycle serves each card's precomputed no-key result.
Add generateStatusBatchForUser: it prepares the seven specialised status
snapshots once, sends one prompt for a { perMetric } envelope covering only
the metrics with data, and fans each summary back into the same per-metric
cache rows the standalone generators write. One JSON-correction retry guards
the parse; any omitted metric or a failed batch degrades to that card's own
single-call path, so a partial response never goes dark. The nightly warm and
the forced warm route through the batch in production while the injected
per-card seam keeps the cron tests intact. Adds the status-batch prompt
scaffold composed from the shared assessment contract.
Apply the prepare -> run -> finalize split to blood-pressure, pulse, bmi,
mood, general, and medication-compliance status, matching weight-status.
Each public generator keeps its signature and one-call behaviour by driving
its prepared card through the shared single-card path; the snapshot build,
cache read, read-only miss, and content-hash gate are now reusable by a
batched caller without changing what each card persists.
Introduce a prepare -> run -> finalize contract for the per-metric status
cards so the snapshot build and the provider call can be driven separately.
The public generator keeps its signature and one-call-per-metric behaviour;
weight-status now resolves through the shared single-card path. Add the
status-batch AI budget entry sized for one combined seven-metric call.
The grounding, tone/banned-opener, GLP-1 dose-safety, metric-identifier
ban and forbidden-filler rules were independently encoded across the
comprehensive, status, Coach and narrative prompts and had drifted. Move
the canonical wording into `prompts/shared-contracts.ts` (locale-keyed
fragments) and compose each surface from it.
Where the surfaces had drifted, adopt the stricter wording: most notably
the GLP-1 dose-prescription contract — previously present only in the
comprehensive and Coach prompts — now reaches the status cards and the
period narrative too. A cross-surface coverage test asserts every
enforced fragment appears verbatim in every surface, in de and en.
The comprehensive generator did an ad-hoc JSON.parse with no corrective
retry and failed cold to `invalid-json` on a first-pass miss, while the
strict insight wrapper's `buildRetryCorrectionMessage` sat right next
door. Export that helper and reuse it: on a parse miss, append the
correction to the user prompt and re-run the chain once before declaring
failure. Unifies the JSON-robustness story across the two paths.
The content-hash gate re-stamps the prior text whenever the snapshot is
unchanged, so the "daily" briefing read byte-stable day-over-day. Decouple
phrasing freshness from data freshness for the dailyBriefing.paragraph
alone: on a hash-unchanged hit, re-roll just the paragraph once per
calendar day at a higher, seedless temperature, keeping every structured
finding verbatim from the cached payload.
A new `insightsBriefingRerollDate` column gates it to at most one extra
call per day, and a re-roll miss still stamps the day so a failing
provider cannot be re-driven on every page-open. The hash gate stays
fully intact for the status cards (reference assessments — monotony is
fine).
Add an opt-in `responseFormat: "json"` to CompletionParams that the
structured surfaces (comprehensive briefing + per-metric status cards)
set. On local (Ollama / OpenAI-compatible) it adds `format: "json"`; on
Anthropic it prefills the assistant turn with `{` and re-prepends the
brace to the reply, so the first emitted token is already inside a JSON
object. Both cut the first-pass JSON-failure rate that fence-stripping
otherwise has to absorb.
OpenAI already pins `response_format: json_object` and is unchanged. The
period narrative (plain text) and the Coach (streaming prose) leave the
flag unset, so their non-JSON paths are untouched.
Add an optional `seed` to CompletionParams and thread it onto the
OpenAI and local (Ollama / OpenAI-compatible) request bodies. The field
is dropped when unset, so existing callers are byte-identical.
Pin a stable seed for the status/reference cards (defaulted in the
status provider) and the period narrative, so a prompt change is
diff-able against a fixed baseline rather than masked by low-temperature
non-determinism. Anthropic's Messages API has no seed knob, so its
client ignores the field (documented inline). The seed is annotated on
the narrative wide-event.
Replace the scattered `?? 0.3` / `?? 1000` temperature and maxTokens
magic numbers across the status provider, Coach route, comprehensive
generator and period-narrative generator with a single typed
`ai-budgets.ts` map. Each entry documents the output contract that
fixes its token ceiling.
Right-size the per-metric status output from 1000 to 250 tokens: the
card renders one `{ "summary": "..." }` of 2-4 sentences (30-60 words),
so 1000 was an order of magnitude over the real ceiling.
Drop steps from the signals-of-day set: Apple Health steps ingest as
many intraday stats-prefixed samples, so the newest raw row is a
partial-day fragment, not a daily total — same exclusion already applied
to per-night sleep. Add a glucose signal off the canonical stored value
(the model reads the snapshot, not display units) so the block matches
the priority comment that already claimed it; drop the dead sleep entry
from SIGNAL_PRIORITY. Track the raw extreme magnitude when keeping the
most extreme recent anomaly so a larger anomaly is no longer dropped by
comparing against an already-rounded value. Thread the injected clock
through trendSlope so the emerging-trend cutoff is deterministic under a
test clock. Rename the anomaly day-count to anomalyDaysAgo so the
snapshot hash staleness-tiers it instead of letting the raw count drive
the fingerprint. Cap the returned set at three to match the schema.
Compute a present-focused "signals of the day" block in extractFeatures from
the in-memory measurement set (no extra query): the freshest reading vs the
user's own 7d/30d windows, the normal-swing verdict, an emerging slope, and a
recent anomaly per salient metric, ranked by clinical priority and capped at
five. Add a signalsOfDay array to the dailyBriefing schema feeding the
briefing alongside the existing keyFindings cap, and rewrite the briefing
prompt (EN + DE) to lead with NOW: a warmer, motivating read that surfaces the
emerging signal and gives one concrete, doable nudge while still drawing on the
tiered history.
The signals block lands inside the compacted features payload, so it also
seeds insightsSnapshotHash — a fresh daily signal now changes the fingerprint
and forces the daily 04:30 warm to regenerate instead of re-stamping a
days-old narrative. Bump PROMPT_VERSION to 4.29.0.
The overview charted each trend but never offered a way into the metric's
detail page — the steps page in particular exists and is used, yet Insights
never linked to it. Give every Trends-row chart a routed detail target and a
discreet "view details" link below the caption, so a metric the row surfaces
(steps included, when the briefing flags it) drills into /insights/<slug>.
Introduce src/lib/reference-ranges.ts: a structured, citation-backed
per-metric reference-range backbone (band + source body + year) with a
deterministic four-state placement helper, read by the UI surfaces. Each
band traces to the medical-citations registry, which gains the supporting
sources (ACC/AHA 2017 and ESC 2024 blood pressure, StatPearls pulse
pressure and mean arterial pressure, ESC/ESH 2018 pulse-wave velocity,
FDA 2024 and StatPearls pulse oximetry, J Gen Intern Med 2019 temperature,
RCP NEWS2 and American Lung Association respiratory rate, visceral-fat
imaging literature, AHA 2024 resting heart rate, ESC/NASPE 1996 HRV,
Wilcox 2000, ACOG 651, Phillips 2017 and CDC 2024 sleep).
Blood pressure keeps ESH 2023 as the labelled default; ACC/AHA 2017 and
ESC 2024 appear only as displayed placement context. Enrich the metric
explainers with concise cited reference bands and a general-guidance
tooltip on every metric page: a darker-skin pulse-oximeter over-read
caveat, device-proxy honesty for readiness/recovery/strain/stress, an
HRV day-to-day-noise note, and a resting-heart-rate clarification. Fill
the empty registry normal ranges, reconcile the steps green floor to
8,000, and tighten the body-temperature band below the fever line. Add
free pulse-pressure and mean-arterial-pressure context on the blood-
pressure detail page, plus cycle-physiology and sleep-hygiene copy across
all six locales. Cycle thresholds carry a verification marker pending an
ACOG source check.
Add a calm, value-free Rest Mode indicator to the dashboard score card and
the recovery insight so the web matches what iOS already shows: when an
illness/condition episode is active the score and recovery are framed, never
penalised, and the surface now says so. The new banner is neutral and
untinted, self-gates on an active episode, and reveals only the onset date —
never a decrypted note or episode label. The dashboard reads the annotation
from the snapshot (resolved server-side alongside the score); the recovery
section reads it from the analytics payload.
Give the sleep page one assessment per distinct chart group: the
duration/architecture assessment now sits with its charts, and the
sleep-quality block carries its own SLEEP_SCORE assessment, matching the
"multiple charts, multiple texts" structure the recovery page meets.
Add the steps explainer (insights.subPage.explainer.steps*) and pass
explainerMetric="steps", and demote the recovery per-block title to an h3 so
the heading outline nests cleanly under the page heading and group heading.
An active illness/condition episode annotates, it never penalises: the
measured number is untouched, only the narrative changes.
- rest-mode.ts: one server-authoritative resolver (module-gated, fail-soft)
for "is the account in Rest Mode + which episodes back it". iOS mirrors the
resolved context, never recomputes the suppression.
- health-score: /api/analytics attaches a value-free Rest Mode annotation;
computeHealthScore stays pure (score never adjusted).
- recovery-score: computeRecoveryScore carries the Rest Mode context as of the
scored day; the persisted blend is unchanged.
- coach-nudge: pause cadence-nudges during an active episode (new
skippedDuringIllness counter, gate sits before the trigger search).
- achievements: bridgeFrozenStreakGaps freezes (does not break) every
day-streak across illness days; never invents a streak, a non-illness gap
still breaks.
- coincident-deviation: reframe a fired flag as illness-explained; vital
numbers untouched. Surfaced as a neutral line on the insights card.
- coach snapshot: illness history + active illness as load-bearing context so
the coach knows about Rest Mode (no decrypted note reaches the prompt).
- FHIR: illness episodes map to Condition (generic disease root, label on
code.text, patient-reported/unconfirmed) + a bounding Encounter.
- doctor-report: module-gated illness section in the aggregator + PDF table
(retrospective, neutral palette); FHIR Condition section in the bundle.
i18n x6 for the report + reframe copy. Tests: score-annotation-not-
penalisation, streak-freeze, coach-nudge pause, FHIR Condition/Encounter
mapping, doctor-report inclusion, Rest Mode resolver. typecheck/lint/test
green, openapi in sync, knip clean.
The recovery page rendered a grid of compact device-score tiles plus a
redundant cross-link to the recovery-score anatomy at the top. It now
follows the same structure as every other metric page (blood pressure,
pulse, the HealthKit scaffold): each present device-native signal renders
a block carrying a short explainer, the max / median / mean stat strip,
the shared chart with the identical 7 / 30 / 90 / All toggle, and a
per-chart assessment. Multiple charts now carry multiple matching texts.
Register the seven device-native recovery / strain signals (ANS charge,
day / workout strain, cardio load, whole-day average / max heart rate,
energy expenditure) in the generic metric-status registry so each chart
gets a generated assessment, gate them on the recovery module, and give
each its own chart-overlay slot. Drop the duplicate top score-link block
(this surface is reached from the overview already).
Regenerate the OpenAPI contract for the widened metric-status enum.
The per-day compliance series in the medication-compliance insight snapshot
divided every event-day by the schedule count, treating each calendar day as
fully dose-due. A weekly-cadence medication (a Monday-only schedule, a
bi-weekly interval) therefore had its series read off-cadence weekdays as
misses, contradicting the canonical compliance30 value shown in the same
snapshot.
Route the per-day series through the unified dose-history ledger that already
backs compliance7 / compliance30: add dailyComplianceRatesFromLedger, which
groups the ledger's scheduled slot rows by day and scores each day with the
same taken / (taken + missed) tally — on-time-plus-late numerator, skip /
ad-hoc / upcoming exclusions — that tallyLedgerRows applies to the window
rates. Only days the cadence actually expected a dose produce a point, so a
non-due day can no longer be counted as a miss, and the per-day series and
compliance30 are computed from one ledger and cannot disagree.
The insight generator now derives both the canonical compliance results and
the ledger from a single buildMedicationComplianceBundle pass instead of two
calculateCompliance calls plus a hand-rolled per-day map.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Oura and Polar recovery rows are bucketed on the local day of their raw
measuredAt, on the assumption that both stamp the wake morning. Polar
always anchors at UTC midnight of the wake date and Oura falls back to the
same anchor when no real wake instant is present, so for a user in a far
negative UTC zone that anchor reads as the previous local evening and a
single night can split across two recovery days near the date line. A
correct fix needs an anchor-kind signal threaded through the recovery
read so the date-anchored sources read their wake day in UTC while a real
wake instant stays local — out of scope here. Document the assumption at
the bucketing site; positive-UTC users are unaffected.
Two additive measurement_type values for the Oura coverage completion:
- SLEEP_SCORE — the headline 0-100 sleep-quality score (unit score),
kept apart from the WHOOP sleep sub-scores so two vendors' headline
numbers never share a bucket.
- BODY_TEMPERATURE_DEVIATION — a signed nightly body-temperature offset
from the personal baseline (celsius). It is a deviation, not an
absolute reading, so it cannot share the body / skin / wrist
temperature buckets.
Migration 0165 extends the enum (additive, no backfill). Register both in
the validation enum, units, plausibility ranges, category overlay, list-UI
label/icon/colour maps, chart-token allowlist, and the PR-direction switch
(both resolve to no record direction). Both are descriptive signals, not
clinical vitals, so they stay out of the doctor-report PDF. Localise the
two list labels across all six locales and regenerate the OpenAPI contract.
Polar Nightly Recharge and Training Load Pro carry two native signals with
no existing home: the HRV-based autonomic-nervous-system charge (distinct
from the 1-6 recovery band that maps to RECOVERY_SCORE) and the device-native
cardio-load strain figure (distinct from WHOOP DAY_STRAIN and the COMPUTED
STRAIN_SCORE). Add both to the canonical enum (migration 0166) and wire them
through the validation enum, canonical units, plausibility ranges, category
cluster, chart-token allowlist, PR-direction resolver, and the measurement-
list label/icon/colour maps, with labels across all six locales. Both are
device-derived composites, so they read no PR direction and stay out of the
clinical vitals PDF, matching the WHOOP-native score classes.
Regenerate the OpenAPI contract for the two new enum members.
Derive the recovery source rank from the one priority ladder instead of a second
hand-kept map, re-point the WHOOP and Fitbit HTTP classifiers at the shared
status classifier, and lift the near-identical poll-cohort job handlers onto one
factory. Drop the Polar refresh-token column, which was only ever written null
since Polar tokens do not expire. Behaviour is unchanged across the recovery,
classifier, queue and route suites.
Connect a Polar account over AccessLink v3: an authorization-code OAuth
flow (shared app from POLAR_CLIENT_ID / POLAR_CLIENT_SECRET) backed by a
stateless HMAC-signed state token doubling as an httpOnly cookie for CSRF.
The callback verifies the signature, expiry, provider binding, and the
byte-exact cookie match, then encrypts the access token plus member id onto
the user row.
An hourly poll-cohort job maps Nightly Recharge recovery, sleep stages,
and daily activity to canonical measurements tagged source POLAR, idempotent
on (userId, type, source, externalId). The recovery band feeds RECOVERY_SCORE
through the canonical ladder, which now ranks native readiness above the
computed proxy. Settings gains a connect / disconnect card. Tokens are never
logged or returned; every egress goes through safeFetch.
Make computeSleepRhythmFromNights own the chronotype look-back so the dashboard
summary (a year of nights) and GET /api/sleep/rhythm (six weeks) return the
same band, mid-sleep, and social-jetlag values rather than averaging different
samples. Derive the free/work day-type from the local wake-day digits so the
classification holds in far-east timezones, and read the shared sleep-rhythm
DTO type into the client hook instead of a hand-mirrored copy.
Compute cumulative sleep debt and the MCTQ chronotype server-side off the
canonical night reconstruction the Sleep Score reads, and render them on
the sleep page: a sleep-debt headline with a calm partial state under the
night threshold, and a chronotype card whose social-jetlag detail and
corrected mid-sleep sit behind an advanced disclosure. Both hold a learning
state on thin data and never assert a total or a band.
Serve the same values to the dashboard summary and a new GET /api/sleep/rhythm
read so the native client renders identical figures. Free vs work nights
default to weekend in the user's timezone until day-type tracking exists.
WHOOP stamps a recovery on the wake morning while the computed proxy files the
same night under the day that ended, a systematic off-by-one that left both
rows alive as two competing recovery days once the native series was read.
Resolve recovery by a source-aware wake-day key in the user's timezone — the
computed proxy's day is shifted forward to meet WHOOP's wake morning — so one
night collapses to one canonical row without re-dating the stored stamp and
without a backfill. Thread the same resolution through the wellness reader, the
coach nudge trend, and the coach snapshot, which had each read recovery raw.
The native WHOOP recovery and the computed proxy stamp the same night on
opposite clocks: WHOOP files the wake-morning instant (day D), the proxy files
noon-UTC of the day that ended (day D-1). Bucketing raw measuredAt by calendar
day leaves both alive as two competing recovery days.
Bucket each source by the user's local wake-day instead — shifting the proxy's
day-that-ended stamp forward one day to meet WHOOP's wake-morning stamp — so a
single night collapses to one canonical row while distinct nights stay
separate. Resolve the coach-nudge recovery trend and the coach-snapshot dedup
through the same path so no surface blends the two series or drops a genuine
native value on a numeric tie.
Nights with AWAKE rows but no IN_BED row (a common Apple Health shape)
lost their efficiency sub-score after the canonical reconstructSleepNights
migration, silently reweighting the composite and shifting historical Sleep
Scores. Restore the synthesised asleep + awake fallback on top of the deduped
per-night totals: keep the real IN_BED figure when present, synthesise when
only asleep + awake exist, stay null when neither.
Marc-André Bombeck