diff --git a/docs/api/openapi.yaml b/docs/api/openapi.yaml
index 728e429f9..e8fffb7d4 100644
--- a/docs/api/openapi.yaml
+++ b/docs/api/openapi.yaml
@@ -2650,7 +2650,15 @@ paths:
             application/json:
               schema:
                 $ref: "#/components/schemas/PasskeyLoginVerifyResponse"
-        "401": *a1
+        "401":
+          description: The sign-in did not prove anything (v1.42.0 codes; before, the first case answered 500). `meta.errorCode` =
+            `passkey.challenge.expired` when the challenge is gone — it expired after five minutes, was already used, or
+            was begun for a different account — so start a new sign-in; `passkey.verification.failed` when the assertion
+            was checked and refused (signature, origin, relying-party id or challenge mismatch).
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ErrorEnvelope"
         "403":
           description: Passkey login is disabled — the operator runs `OIDC_ONLY=true`. `meta.errorCode` = `oidc_only`.
           content:
@@ -2658,12 +2666,20 @@ paths:
               schema:
                 $ref: "#/components/schemas/ErrorEnvelope"
         "404":
-          description: The assertion resolved to a user row that no longer exists.
+          description: "`meta.errorCode` = `passkey.unknown` (v1.42.0): no passkey with this credential id is registered on this
+            server — it was removed here, or belongs to another server. Tell the person to sign in another way. Without
+            a code: the assertion resolved to a user row that no longer exists."
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ErrorEnvelope"
+        "422":
+          description: "`challengeId` or `credential` is missing, or (`meta.errorCode` = `passkey.response.invalid`, v1.42.0)
+            `credential` is not a WebAuthn authentication response."
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ErrorEnvelope"
-        "422": *a4
         "429": *a5
   /api/auth/refresh:
     post:
@@ -4497,7 +4513,12 @@ paths:
             (`measurement.batch.invalid`, with every issue under `details.issues`), or
             (`measurement.batch.source_not_permitted`) carried an entry naming a source, any source, under a narrow
             `measurements:write` credential. Nothing was written in any of the three cases, and all three are permanent
-            for the batch as sent: resending it unchanged is refused the same way."
+            for the batch as sent: resending it unchanged is refused the same way. Which issues belong to an entry:
+            every issue caused by one entry has a `path` that starts `entries.<n>` (the entry's index in the request,
+            then the field, e.g. `entries.3.startDate`, or just `entries.4` when the entry is not an object). Those are
+            the only per-entry issues, so a client may drop the named entries and resend the rest. An issue whose `path`
+            is `\"\"` (the body is not an object), `entries` (missing, not an array, or empty) or `syncTrigger` is about
+            the batch itself, and no split recovers it."
           content:
             application/json:
               schema:
@@ -5131,11 +5152,14 @@ paths:
               schema:
                 $ref: "#/components/schemas/ErrorEnvelope"
         "422":
-          description: Body validation failed (multi-issue envelope, breadcrumbed as
+          description: "Body validation failed (multi-issue envelope, breadcrumbed as
             `medications.intake.update.validation-failed`), or `meta.errorCode` =
             `medications.intake.injection_site.disallowed` when the site is outside the medication's effective allowed
             set, or `medications.intake.force_slot.invalid` when `forceSlotInstant` is not a real slot of the
-            medication. The latter two carry no issue list — branch on the code.
+            medication, or (v1.42.0) `medication.intake.notTracked` when the event is still open and its medication is
+            kept as a record only (`trackIntake: false`): resolving or snoozing it would record a new dose that is
+            counted nowhere. Correcting an event that is already taken or skipped stays open. The coded refusals carry
+            no issue list — branch on the code."
           content:
             application/json:
               schema:
@@ -6397,7 +6421,16 @@ paths:
               schema:
                 $ref: "#/components/schemas/ErrorEnvelope"
         "409": *a7
-        "422": *a4
+        "422":
+          description: "Body validation failed (multi-issue envelope), or `meta.errorCode` names the refusal:
+            `medications.intake.injection_site.disallowed`, `medications.intake.force_slot.invalid`, or (v1.42.0)
+            `medication.intake.notTracked` when the medication is kept as a record only (`trackIntake: false`). Its
+            stored history stays; a new dose is refused rather than stored and counted nowhere. The check runs after
+            ownership, so a foreign medication is still a 404."
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ErrorEnvelope"
         "429": *a13
     get:
       tags:
@@ -6721,13 +6754,36 @@ paths:
       tags:
         - Medications
       summary: Batched adherence read for every medication of the caller
-      description: Returns one compact row per non-PRN medication. A scheduled medication with no local schedule remains in
-        the array with applicable=false and reason NO_LOCAL_SCHEDULE. compliance7/compliance30 stay non-null as all-zero
+      description: >-
+        Returns one compact row per non-PRN medication. A scheduled medication with no local schedule remains in the
+        array with applicable=false and reason NO_LOCAL_SCHEDULE. compliance7/compliance30 stay non-null as all-zero
         compatibility placeholders for released clients; aware clients must ignore those percentages when
         applicable=false. complianceDisplay is null.
+
+
+        v1.42.0, additive: `meta.aggregate` carries one figure for the whole account (`MedicationComplianceAggregate`,
+        weighted by expected doses across the applicable medications; `null` when none applies), so a client never
+        averages the rows itself. `days` (30, 60, 90, 180 or 365) adds a `complianceN` block in the same shape to every
+        row and to the aggregate, for a report that covers its own window; `meta.days` echoes it. Any other `days` is a
+        422 rather than a rounded window.
+      parameters:
+        - in: query
+          name: days
+          schema:
+            description: Report window in days. 30 is already `compliance30`; the others add `compliance60` / `compliance90` /
+              `compliance180` / `compliance365`.
+            type: string
+            enum:
+              - "30"
+              - "60"
+              - "90"
+              - "180"
+              - "365"
+          description: Report window in days. 30 is already `compliance30`; the others add `compliance60` / `compliance90` /
+            `compliance180` / `compliance365`.
       responses:
         "200":
-          description: One adherence row per medication.
+          description: One adherence row per medication, and the account aggregate in `meta`.
           content:
             application/json:
               schema:
@@ -8773,9 +8829,10 @@ paths:
       summary: Update per-user notification preferences
       description: 'Deep-merges the supplied partial shape over the persisted row — a PATCH touching only one category leaves
         the siblings intact. Always returns the fully-resolved next state so clients can hard-set their optimistic
-        update. `medication.clientManaged: true` (or `deliveryDefault: "client"`) suppresses server-side
-        MEDICATION_REMINDER APNs; `medication.lowStockRunwayDays` (1–60, nullable, default 7) tunes the low-stock alert
-        — null switches it off. Rate-limit 60/min per user.'
+        update. `medication.clientManaged: true` (or `deliveryDefault: "client"`) keeps the MEDICATION_REMINDER that
+        announces a dose off APNs and leaves the follow-ups for a dose still open on it (v1.42.0);
+        `medication.lowStockRunwayDays` (1–60, nullable, default 7) tunes the low-stock alert — null switches it off.
+        Rate-limit 60/min per user.'
       requestBody:
         required: true
         content:
@@ -12620,7 +12677,20 @@ paths:
         window the prior aggregate is served immediately while one background recompute warms a new one, so an active
         logger never re-pays the cold compute. Module-gated on `mood`; a disabled module answers 403 `module.disabled`
         even for a valid Bearer token. Cookie or Bearer auth; the caller is always resolved as themselves, so this read
-        cannot be delegated to a shared record — which makes it the one mood surface a delegate cannot reach."
+        cannot be delegated to a shared record — which makes it the one mood surface a delegate cannot reach. v1.42.0 —
+        `days` cuts `stability` to the period a client shows; every other block is unchanged by it."
+      parameters:
+        - in: query
+          name: days
+          schema:
+            description: "Trailing window for `stability`, in days. Omitted: 365. Any other value is a 422."
+            type: string
+            enum:
+              - "30"
+              - "90"
+              - "180"
+              - "365"
+          description: "Trailing window for `stability`, in days. Omitted: 365. Any other value is a 422."
       responses:
         "200":
           description: The aggregate bundle.
@@ -22283,7 +22353,10 @@ paths:
         "422":
           description: "Validation failed, with every issue listed rather than the first — an integration operator should see the
             whole shape at once. An empty or unstable `idempotencyKey` fails here: the column is unique table-wide, so
-            an empty key would resolve to whichever unrelated row stored it first."
+            an empty key would resolve to whichever unrelated row stored it first. Also 422 with `meta.errorCode` =
+            `medication.intake.notTracked` (v1.42.0) when the named medication is kept as a record only (`trackIntake:
+            false`); checked after the token's scope, so a token without this medication's scope learns nothing about
+            it."
           content:
             application/json:
               schema:
@@ -33578,25 +33651,26 @@ components:
                 measurement.batch.too_large, measurement.bulk-delete.invalid, measurement.create.invalid,
                 measurement.create.source_not_permitted, measurement.delete.too_large, measurement.duplicate_timestamp,
                 measurement.restore.invalid, measurement.update.server_owned_source; medication —
-                medication.intake.import.invalid_format; medications — medications.category.invalid,
-                medications.category.limitReached, medications.category.unknown, medications.course.currentOpen,
-                medications.course.invalid, medications.course.invalidRange, medications.course.notFound,
-                medications.course.oneShot, medications.course.overlap, medications.course.windowRequired,
-                medications.intake.bulk.apple_health_not_mirrored, medications.intake.bulk.invalid,
-                medications.intake.bulk.too_large, medications.intake.force_slot.invalid,
-                medications.intake.force_slot.occupied, medications.intake.injection_site.disallowed,
-                medications.intake.taken_at.before_start, medications.mirror.limit_exceeded; mentalHealth —
-                mentalHealth.rateLimited; module — module.disabled; modules — modules.body.invalid_json,
-                modules.invalid; mood — mood.bulk-delete.invalid, mood.bulk.invalid, mood.bulk.too_large,
-                mood.create.external_id_not_delegable, mood.create.invalid, mood.duplicate_timestamp,
-                mood.linkedContext.invalid, mood.list.invalid, mood.not_found, mood.ratedFactor.out_of_range,
-                mood.restore.invalid, mood.update.invalid; notification-prefs — notification-prefs.body.invalid_json;
-                nutrient — nutrient.batch.invalid, nutrient.batch.too_large, nutrient.daily.invalid,
-                nutrient.read.invalid, nutrient.water.invalid, nutrient.water.invalid_day; onboarding —
-                onboarding.answers.invalid, onboarding.answers.rateLimited, onboarding.complete.invalid,
+                medication.intake.import.invalid_format, medication.intake.notTracked; medications —
+                medications.category.invalid, medications.category.limitReached, medications.category.unknown,
+                medications.course.currentOpen, medications.course.invalid, medications.course.invalidRange,
+                medications.course.notFound, medications.course.oneShot, medications.course.overlap,
+                medications.course.windowRequired, medications.intake.bulk.apple_health_not_mirrored,
+                medications.intake.bulk.invalid, medications.intake.bulk.too_large,
+                medications.intake.force_slot.invalid, medications.intake.force_slot.occupied,
+                medications.intake.injection_site.disallowed, medications.intake.taken_at.before_start,
+                medications.mirror.limit_exceeded; mentalHealth — mentalHealth.rateLimited; module — module.disabled;
+                modules — modules.body.invalid_json, modules.invalid; mood — mood.bulk-delete.invalid,
+                mood.bulk.invalid, mood.bulk.too_large, mood.create.external_id_not_delegable, mood.create.invalid,
+                mood.duplicate_timestamp, mood.linkedContext.invalid, mood.list.invalid, mood.not_found,
+                mood.ratedFactor.out_of_range, mood.restore.invalid, mood.update.invalid; notification-prefs —
+                notification-prefs.body.invalid_json; nutrient — nutrient.batch.invalid, nutrient.batch.too_large,
+                nutrient.daily.invalid, nutrient.read.invalid, nutrient.water.invalid, nutrient.water.invalid_day;
+                onboarding — onboarding.answers.invalid, onboarding.answers.rateLimited, onboarding.complete.invalid,
                 onboarding.complete.recordNotFound, onboarding.complete.recordTargetMismatch,
                 onboarding.disclaimer.invalid, onboarding.restart.invalid, onboarding.restart.rateLimited,
-                onboarding.tour.invalid; personal_records — personal_records.invalid_query; practitioner —
+                onboarding.tour.invalid; passkey — passkey.challenge.expired, passkey.response.invalid, passkey.unknown,
+                passkey.verification.failed; personal_records — personal_records.invalid_query; practitioner —
                 practitioner.invalid; profile — profile.update.emailInUse, profile.update.emailRateLimited,
                 profile.update.emailSecondFactorRequired, profile.update.invalidBody, profile.update.nothingSaved;
                 record_write — record_write.rate_limited; report-selection — report-selection.body.invalid_json,
@@ -42535,19 +42609,7 @@ components:
             accepted once the window rolls over."
           type: array
           items:
-            type: object
-            properties:
-              path:
-                type: string
-              code:
-                type: string
-              message:
-                type: string
-            required:
-              - path
-              - code
-              - message
-            additionalProperties: false
+            $ref: "#/components/schemas/ValidationIssue"
       required:
         - id
         - username
@@ -46546,6 +46608,11 @@ components:
           description: "`inserted`/`updated`/`duplicate` — the row landed (advance the cursor). `skipped` — not stored; see
             `reason`."
         reason:
+          description: "Why a `skipped` entry was not stored. Among others: `medication_not_found`, `unstable_external_id`,
+            `force_slot_invalid`, `force_slot_occupied`, `injection_site_not_allowed`, and (v1.42.0)
+            `intake_not_tracked` for an entry against a medication kept as a record only (`trackIntake: false`), the
+            per-entry form of `medication.intake.notTracked`. A skip is final: resending the entry gives the same
+            answer."
           type: string
         id:
           description: The landed row id (absent on skips).
@@ -48140,12 +48207,33 @@ components:
         meta:
           type: object
           properties:
+            aggregate:
+              anyOf:
+                - $ref: "#/components/schemas/MedicationComplianceAggregate"
+                - type: "null"
+            days:
+              description: The `days` the request asked for.
+              anyOf:
+                - type: number
+                  const: 30
+                - type: number
+                  const: 60
+                - type: number
+                  const: 90
+                - type: number
+                  const: 180
+                - type: number
+                  const: 365
             requestId:
               type: string
+          required:
+            - aggregate
           additionalProperties: false
+          description: Absent on servers older than v1.42.0; a client that reads it treats absence as no aggregate.
       required:
         - data
         - error
+        - meta
       additionalProperties: false
     MedicationComplianceSummaryEntry:
       type: object
@@ -48168,6 +48256,18 @@ components:
         compliance30:
           description: Thirty-day adherence summary, or an all-zero compatibility placeholder when applicable is false.
           $ref: "#/components/schemas/ComplianceResult"
+        compliance60:
+          description: "Present only on `?days=60`: the trailing 60 days."
+          $ref: "#/components/schemas/ComplianceResult"
+        compliance90:
+          description: "Present only on `?days=90`: the trailing 90 days."
+          $ref: "#/components/schemas/ComplianceResult"
+        compliance180:
+          description: "Present only on `?days=180`: the trailing 180 days."
+          $ref: "#/components/schemas/ComplianceResult"
+        compliance365:
+          description: "Present only on `?days=365`: the trailing 365 days."
+          $ref: "#/components/schemas/ComplianceResult"
         complianceDisplay:
           anyOf:
             - $ref: "#/components/schemas/ComplianceDisplay"
@@ -48393,6 +48493,45 @@ components:
       additionalProperties: false
       description: The two-row card block whose windows scale with dosing cadence (dense meds keep 7 / 30 days, sparse meds
         step both windows up). NOT the 30-day denominator — read `compliance30.totalExpected` for that.
+    MedicationComplianceAggregate:
+      type: object
+      properties:
+        compliance7:
+          $ref: "#/components/schemas/ComplianceResult"
+        compliance30:
+          $ref: "#/components/schemas/ComplianceResult"
+        compliance60:
+          anyOf:
+            - $ref: "#/components/schemas/ComplianceResult"
+            - type: "null"
+        compliance90:
+          anyOf:
+            - $ref: "#/components/schemas/ComplianceResult"
+            - type: "null"
+        compliance180:
+          anyOf:
+            - $ref: "#/components/schemas/ComplianceResult"
+            - type: "null"
+        compliance365:
+          anyOf:
+            - $ref: "#/components/schemas/ComplianceResult"
+            - type: "null"
+        medicationCount:
+          type: integer
+          exclusiveMinimum: 0
+          maximum: 9007199254740991
+          description: How many applicable medications the figure is built from.
+      required:
+        - compliance7
+        - compliance30
+        - medicationCount
+      additionalProperties: false
+      description: "One adherence figure for the whole account in the `ComplianceResult` shape, weighted by expected doses:
+        `taken`, `skipped` and `missed` are summed across every medication with `applicable: true`, and `rate` is
+        recomputed from the sums by the per-medication rule (round(100 · taken / (taken + missed)), capped at 100, 100
+        when nothing was expected). Averaging the per-medication rates would let a weekly injection weigh as much as a
+        three-times-daily tablet. `streak` is the shortest per-medication streak. The `complianceN` block for a
+        requested `days` is present when `days` was sent and is not 30."
     GetMedicationComplianceResponse:
       type: object
       properties:
@@ -52445,19 +52584,7 @@ components:
             it was published only on PUT /api/auth/profile."
           type: array
           items:
-            type: object
-            properties:
-              path:
-                type: string
-              code:
-                type: string
-              message:
-                type: string
-            required:
-              - path
-              - code
-              - message
-            additionalProperties: false
+            $ref: "#/components/schemas/ValidationIssue"
       required:
         - username
         - email
@@ -52503,8 +52630,10 @@ components:
           properties:
             clientManaged:
               type: boolean
-              description: True when the iOS app owns local medication reminders; the server-side MEDICATION_REMINDER APNs cron is
-                suppressed.
+              description: True when the iOS app delivers medication reminders locally. The server then keeps the reminder that
+                announces a dose off APNs (the phone shows its own at dose time) and still pushes the follow-ups for a
+                dose that stays open, which the phone does not send (v1.42.0; before, every MEDICATION_REMINDER push was
+                suppressed). Other channels are never affected.
             deliveryDefault:
               type: string
               enum:
@@ -63358,7 +63487,20 @@ components:
                 - days
               additionalProperties: false
             - type: "null"
-          description: Null for a sparse logger below the day floor.
+          description: Day-to-day steadiness over the trailing `stabilityWindowDays` days. Null below the day floor (seven days
+            with an entry) inside that window, so a short window can be null where the year is not.
+        stabilityWindowDays:
+          anyOf:
+            - type: number
+              const: 30
+            - type: number
+              const: 90
+            - type: number
+              const: 180
+            - type: number
+              const: 365
+          description: "The window `stability` covers: the `days` query parameter, or 365 (the whole daily series) when it was not
+            sent. Added in v1.42.0; absent from older servers, whose score always covers the year."
         tags:
           type: array
           items:
@@ -63814,6 +63956,7 @@ components:
         - weekday
         - timeOfDay
         - stability
+        - stabilityWindowDays
         - tags
         - contextComparison
         - structuredTags
@@ -76257,6 +76400,33 @@ components:
           type: string
         username:
           type: string
+        timezone:
+          type: string
+          description: "The IANA zone the server cuts this account's days in: the stored zone, or the instance default when the
+            stored one is unusable. Resolved, never the raw column, so bucket day keys by this value."
+        glucoseUnit:
+          anyOf:
+            - type: string
+              enum:
+                - mg/dL
+                - mmol/L
+            - type: "null"
+          description: The account's chosen glucose display unit, as stored. `null` means the person never chose one (or the
+            stored value is neither unit), and the server then shows glucose in mg/dL.
+        features:
+          type: object
+          properties:
+            trackIntake:
+              type: boolean
+              const: true
+              description: "Medications take `trackIntake`: a medication can be kept as a record whose doses are never due, and a dose
+                written against one is refused with `medication.intake.notTracked`."
+          required:
+            - trackIntake
+          additionalProperties: false
+          description: What this server understands, for a client released apart from it. Constant across accounts; a flag appears
+            once the server supports the feature and stays `true`. Absent on servers older than v1.42.0. A client that
+            meets a flag it does not know ignores it.
         accountAccess:
           $ref: "#/components/schemas/AccountAccess"
         moduleAccess:
@@ -76288,6 +76458,9 @@ components:
       required:
         - id
         - username
+        - timezone
+        - glucoseUnit
+        - features
         - accountAccess
         - moduleAccess
         - ai
diff --git a/src/__tests__/account-payload-consumer-guard.test.ts b/src/__tests__/account-payload-consumer-guard.test.ts
index 174f0e199..6adc921bf 100644
--- a/src/__tests__/account-payload-consumer-guard.test.ts
+++ b/src/__tests__/account-payload-consumer-guard.test.ts
@@ -153,6 +153,12 @@ const ACTIVE_RECORD_ONLY_FIELDS = [
  * only when the claim is true and checkable.
  */
 const NO_CLIENT_CONSUMER: Record<string, string> = {
+  features:
+    "A capability probe for clients released apart from the server: the native app asks " +
+    "whether this server takes the record-only medication switch before the account has a " +
+    "medication to learn it from (iOS #116, item 18). The web client is built into the same " +
+    "image as the server, so everything it renders is by construction supported; a web read " +
+    "of the flag would be a read written to satisfy this guard.",
   insurerIkNumber:
     "No web surface reads or writes it — the account form offers the insurer name and the " +
     "insurance number, not the institution number. The native client does consume it: it " +
diff --git a/src/app/api/__tests__/inline-schema-strictness-inventory.test.ts b/src/app/api/__tests__/inline-schema-strictness-inventory.test.ts
index 034df0f81..5a3cc6b7c 100644
--- a/src/app/api/__tests__/inline-schema-strictness-inventory.test.ts
+++ b/src/app/api/__tests__/inline-schema-strictness-inventory.test.ts
@@ -119,6 +119,14 @@ const DELIBERATELY_OPEN: Record<string, { count: number; reason: string }> = {
     count: 1,
     reason: "read filter over whole searchParams",
   },
+  "medications/compliance/route.ts": {
+    count: 1,
+    reason: "read filter over whole searchParams",
+  },
+  "mood/insights/route.ts": {
+    count: 1,
+    reason: "read filter over whole searchParams",
+  },
 
   // ---------------------------------------------------------------
   // 3. Native-client ingest and device registration. This is where the
diff --git a/src/app/api/auth/me/route.ts b/src/app/api/auth/me/route.ts
index 4967136e2..2b46fbfe7 100644
--- a/src/app/api/auth/me/route.ts
+++ b/src/app/api/auth/me/route.ts
@@ -74,9 +74,17 @@ import { recordSessionForPayload } from "@/lib/sharing/record-session-fence";
 import { loadAiCapabilities } from "@/lib/ai/capabilities/load";
 import { loadCoachReasoningState } from "@/lib/ai/reasoning/controls";
 import { parseCoachPrefs } from "@/lib/validations/coach-prefs";
+import { storedGlucoseUnit } from "@/lib/glucose";
 
 export const dynamic = "force-dynamic";
 
+/**
+ * Capability flags for clients that are not shipped with the server. Constant
+ * by design: a feature the server supports is supported for every account,
+ * and a per-account answer belongs in `modules` or `ai`, not here.
+ */
+const SERVER_FEATURES = { trackIntake: true } as const;
+
 export const GET = apiHandler(async () => {
   const auth = await requireActorAuth();
   const { user } = auth;
@@ -331,7 +339,8 @@ export const GET = apiHandler(async () => {
     avatarUrl: user.avatarUpdatedAt
       ? buildAvatarUrl(user.id, user.avatarUpdatedAt)
       : null,
-    glucoseUnit: user.glucoseUnit ?? null,
+    // The stored choice, published as the closed pair the contract names.
+    glucoseUnit: storedGlucoseUnit(user.glucoseUnit),
     // v1.7.0 — global metric/imperial display preference. Canonical
     // storage stays SI; this only drives the display-time transform
     // branch. Null defaults to "metric" on the client.
@@ -442,5 +451,11 @@ export const GET = apiHandler(async () => {
     // behind it have one reader by design, and a route that projected them
     // itself would be a second statement of what a record context is.
     recordSession: recordSessionForPayload(auth),
+    // v1.42 — what this server understands, for a client released on its own
+    // schedule (iOS #116, item 18). `trackIntake: true` says medications take
+    // the record-only switch, so an add form can offer it before the account
+    // has a medication to learn it from. A flag only ever appears here once
+    // the server supports it, and stays `true`; absence means an older server.
+    features: SERVER_FEATURES,
   });
 });
diff --git a/src/app/api/auth/passkey/login-verify/__tests__/refusals.test.ts b/src/app/api/auth/passkey/login-verify/__tests__/refusals.test.ts
new file mode 100644
index 000000000..a41950f37
--- /dev/null
+++ b/src/app/api/auth/passkey/login-verify/__tests__/refusals.test.ts
@@ -0,0 +1,164 @@
+/**
+ * A passkey sign-in that cannot be checked answers with its own status and
+ * `meta.errorCode`, never a 500. The real `verifyAuthentication` runs here
+ * against a mocked database, so the test pins the whole path from the
+ * library's refusal to the wire: an expired or already-used challenge, a
+ * credential this server does not know, a body that is not an assertion, and
+ * an assertion the WebAuthn library refuses.
+ */
+import { describe, it, expect, vi, beforeEach } from "vitest";
+import { NextRequest } from "next/server";
+
+vi.mock("@/lib/db", () => ({
+  prisma: {
+    $queryRaw: vi.fn(),
+    passkey: { findUnique: vi.fn(), update: vi.fn() },
+    user: { findUnique: vi.fn() },
+  },
+}));
+
+vi.mock("@simplewebauthn/server", async (importOriginal) => ({
+  ...(await importOriginal<typeof import("@simplewebauthn/server")>()),
+  verifyAuthenticationResponse: vi.fn(),
+}));
+
+vi.mock("@/lib/auth/audit", () => ({
+  auditLog: vi.fn().mockResolvedValue(undefined),
+}));
+
+vi.mock("@/lib/rate-limit", () => ({
+  checkRateLimit: vi.fn(),
+  checkAuthSurfaceRateLimit: vi.fn(),
+}));
+
+vi.mock("@/lib/db-compat", () => ({
+  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
+}));
+
+vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
+
+vi.mock("next/headers", () => ({
+  headers: vi.fn(async () => ({ get: () => null })),
+  cookies: vi.fn(async () => ({
+    get: () => undefined,
+    set: () => {},
+    delete: () => {},
+  })),
+}));
+
+import { POST } from "../route";
+import { prisma } from "@/lib/db";
+import { auditLog } from "@/lib/auth/audit";
+import { checkAuthSurfaceRateLimit } from "@/lib/rate-limit";
+import { verifyAuthenticationResponse } from "@simplewebauthn/server";
+
+const ASSERTION = {
+  id: "cred-1",
+  rawId: "cred-1",
+  type: "public-key",
+  response: {
+    clientDataJSON: "e30",
+    authenticatorData: "AA",
+    signature: "AA",
+  },
+};
+
+function request(credential: unknown = ASSERTION): NextRequest {
+  return new NextRequest("http://localhost/api/auth/passkey/login-verify", {
+    method: "POST",
+    headers: { "content-type": "application/json" },
+    body: JSON.stringify({ challengeId: "ch-1", credential }),
+  });
+}
+
+async function refusal(res: Response) {
+  const body = (await res.json()) as {
+    data: null;
+    meta?: { errorCode?: string };
+  };
+  return { status: res.status, code: body.meta?.errorCode, data: body.data };
+}
+
+beforeEach(() => {
+  vi.resetAllMocks();
+  vi.mocked(checkAuthSurfaceRateLimit).mockResolvedValue({
+    allowed: true,
+    remaining: 9,
+    resetAt: 0,
+    ip: "203.0.113.1",
+  } as never);
+  vi.mocked(prisma.$queryRaw).mockResolvedValue([
+    { challenge: "c-1", user_id: null },
+  ] as never);
+  vi.mocked(prisma.passkey.findUnique).mockResolvedValue({
+    id: "pk-1",
+    userId: "user-1",
+    credentialId: "cred-1",
+    credentialPublicKey: new Uint8Array([1]),
+    counter: BigInt(0),
+    transports: [],
+  } as never);
+});
+
+describe("POST /api/auth/passkey/login-verify — named refusals", () => {
+  it("answers an expired or already-used challenge with 401 passkey.challenge.expired", async () => {
+    vi.mocked(prisma.$queryRaw).mockResolvedValue([] as never);
+    expect(await refusal(await POST(request()))).toEqual({
+      status: 401,
+      code: "passkey.challenge.expired",
+      data: null,
+    });
+    expect(auditLog).toHaveBeenCalledWith(
+      "auth.login.failed",
+      expect.objectContaining({
+        details: { reason: "passkey_challenge_expired" },
+      }),
+    );
+  });
+
+  it("answers a challenge begun for another account the same way", async () => {
+    vi.mocked(prisma.$queryRaw).mockResolvedValue([
+      { challenge: "c-1", user_id: "someone-else" },
+    ] as never);
+    const out = await refusal(await POST(request()));
+    expect(out.status).toBe(401);
+    expect(out.code).toBe("passkey.challenge.expired");
+  });
+
+  it("answers a passkey that is not registered here with 404 passkey.unknown", async () => {
+    vi.mocked(prisma.passkey.findUnique).mockResolvedValue(null as never);
+    expect(await refusal(await POST(request()))).toEqual({
+      status: 404,
+      code: "passkey.unknown",
+      data: null,
+    });
+    expect(auditLog).toHaveBeenCalledWith(
+      "auth.login.failed",
+      expect.objectContaining({ details: { reason: "passkey_unknown" } }),
+    );
+  });
+
+  it("answers a body that is not an assertion with 422 passkey.response.invalid", async () => {
+    const out = await refusal(await POST(request({ id: "cred-1" })));
+    expect(out.status).toBe(422);
+    expect(out.code).toBe("passkey.response.invalid");
+  });
+
+  it("answers an assertion the library refuses with 401 passkey.verification.failed", async () => {
+    vi.mocked(verifyAuthenticationResponse).mockRejectedValue(
+      new Error("Unexpected authentication response origin"),
+    );
+    const out = await refusal(await POST(request()));
+    expect(out.status).toBe(401);
+    expect(out.code).toBe("passkey.verification.failed");
+    expect(prisma.user.findUnique).not.toHaveBeenCalled();
+  });
+
+  it("still lets a real fault surface as one", async () => {
+    vi.mocked(prisma.passkey.findUnique).mockRejectedValue(
+      new Error("connection reset"),
+    );
+    const res = await POST(request());
+    expect(res.status).toBe(500);
+  });
+});
diff --git a/src/app/api/auth/passkey/login-verify/route.ts b/src/app/api/auth/passkey/login-verify/route.ts
index 4032fdb15..527c29bcc 100644
--- a/src/app/api/auth/passkey/login-verify/route.ts
+++ b/src/app/api/auth/passkey/login-verify/route.ts
@@ -1,4 +1,8 @@
-import { verifyAuthentication } from "@/lib/auth/passkey";
+import {
+  PasskeyAuthError,
+  verifyAuthentication,
+  type PasskeyAuthErrorKind,
+} from "@/lib/auth/passkey";
 import { createSession } from "@/lib/auth/session";
 import { syncMfaEnrollCookie } from "@/lib/auth/mfa-enrollment";
 import { recordSignInDevice } from "@/lib/auth/login-alert";
@@ -20,6 +24,43 @@ import { issueAccessAndRefresh } from "@/lib/auth/refresh-token";
 import { isOidcOnly } from "@/lib/auth/oidc";
 import { completePendingOidcLink } from "@/lib/auth/oidc-pending-link";
 
+const PASSKEY_VERIFICATION_FAILED_CODE = "passkey.verification.failed";
+
+/**
+ * How each passkey refusal answers. The challenge and verification cases are
+ * 401 (the sign-in did not prove anything), the unknown credential is 404 (the
+ * passkey is not registered on this server), and a malformed body is 422.
+ */
+const PASSKEY_REFUSALS: Record<
+  PasskeyAuthErrorKind,
+  { status: number; errorCode: string; message: string; auditReason: string }
+> = {
+  challenge_expired: {
+    status: 401,
+    errorCode: "passkey.challenge.expired",
+    message: "The sign-in took too long or was already used. Try again.",
+    auditReason: "passkey_challenge_expired",
+  },
+  unknown_passkey: {
+    status: 404,
+    errorCode: "passkey.unknown",
+    message: "This passkey is not registered here.",
+    auditReason: "passkey_unknown",
+  },
+  malformed: {
+    status: 422,
+    errorCode: "passkey.response.invalid",
+    message: "The passkey response could not be read.",
+    auditReason: "passkey_response_invalid",
+  },
+  verification_failed: {
+    status: 401,
+    errorCode: PASSKEY_VERIFICATION_FAILED_CODE,
+    message: "Passkey verification failed",
+    auditReason: "passkey_verification_failed",
+  },
+};
+
 export const POST = apiHandler(async (request: NextRequest) => {
   // OIDC_ONLY must block passkey login too, not just password login — a
   // credential minted before SSO was mandated must not stay a live bypass.
@@ -55,17 +96,39 @@ export const POST = apiHandler(async (request: NextRequest) => {
     return apiError("challengeId and credential required", 422);
   }
 
-  const { verification, passkey } = await verifyAuthentication(
-    challengeId,
-    credential,
-  );
+  let outcome: Awaited<ReturnType<typeof verifyAuthentication>>;
+  try {
+    outcome = await verifyAuthentication(challengeId, credential);
+  } catch (err) {
+    // A known client-side case — an expired challenge, a passkey that is no
+    // longer registered here, a malformed or refused assertion — answers
+    // with its own status and code (iOS #116, item 20) so the app can tell
+    // the person what to do instead of reporting a server error. Anything
+    // else is a real fault and keeps propagating.
+    if (!(err instanceof PasskeyAuthError)) throw err;
+    const refusal = PASSKEY_REFUSALS[err.kind];
+    await auditLog("auth.login.failed", {
+      ipAddress: ip,
+      details: { reason: refusal.auditReason },
+    });
+    annotate({
+      action: { name: "auth.login.passkey.refused" },
+      meta: { reason: err.kind },
+    });
+    return apiError(refusal.message, refusal.status, {
+      errorCode: refusal.errorCode,
+    });
+  }
+  const { verification, passkey } = outcome;
 
   if (!verification.verified) {
     await auditLog("auth.login.failed", {
       ipAddress: ip,
       details: { reason: "passkey_verification_failed" },
     });
-    return apiError("Passkey verification failed", 401);
+    return apiError("Passkey verification failed", 401, {
+      errorCode: PASSKEY_VERIFICATION_FAILED_CODE,
+    });
   }
 
   const user = await prisma.user.findUnique({
diff --git a/src/app/api/ingest/medication/__tests__/route.test.ts b/src/app/api/ingest/medication/__tests__/route.test.ts
index 43cba330c..37c3850c6 100644
--- a/src/app/api/ingest/medication/__tests__/route.test.ts
+++ b/src/app/api/ingest/medication/__tests__/route.test.ts
@@ -577,4 +577,22 @@ describe("POST /api/ingest/medication — the rate-limit bucket", () => {
     );
     expect(res.status).toBe(429);
   });
+
+  it("refuses a dose for a record-only medication with medication.intake.notTracked", async () => {
+    vi.mocked(prisma.medicationIntakeEvent.findFirst).mockResolvedValue(
+      null as never,
+    );
+    vi.mocked(prisma.medication.findFirst).mockResolvedValue({
+      id: "med-1",
+      userId: "user-1",
+      name: "Metformin",
+      trackIntake: false,
+    } as never);
+    const res = await POST(
+      postReq({ medicationName: "Metformin", idempotencyKey: "k-record-001" }),
+    );
+    expect(res.status).toBe(422);
+    const body = await res.json();
+    expect(body.meta?.errorCode).toBe("medication.intake.notTracked");
+  });
 });
diff --git a/src/app/api/ingest/medication/route.ts b/src/app/api/ingest/medication/route.ts
index 2d45fc4bd..6b53f9c88 100644
--- a/src/app/api/ingest/medication/route.ts
+++ b/src/app/api/ingest/medication/route.ts
@@ -31,6 +31,8 @@ import {
 import { consumeForIntake } from "@/lib/medications/inventory/consumption";
 import { invalidateUserMedications } from "@/lib/cache/invalidate";
 import { DEFAULT_TIMEZONE } from "@/lib/tz/format";
+import { isRecordOnly } from "@/lib/medications/intake-tracking";
+import { refuseUntrackedIntake } from "@/lib/medications/route-guards";
 import { NextRequest } from "next/server";
 
 const RATE_LIMIT = 60;
@@ -224,6 +226,11 @@ export const POST = apiHandler(async (request: NextRequest) => {
     return apiError("API endpoint for this medication is disabled", 403);
   }
 
+  // A record-only medication takes no new dose — the same refusal every
+  // dose-writing route gives (iOS #116, item 15). Checked after the scope
+  // gate so a token without this medication's scope learns nothing about it.
+  if (isRecordOnly(medication)) return refuseUntrackedIntake();
+
   // The external ingest path runs without a User record in scope;
   // resolve the timezone once — band attribution and the compliance
   // recompute below both anchor on the user's local day.
diff --git a/src/app/api/measurements/batch/__tests__/issue-paths.test.ts b/src/app/api/measurements/batch/__tests__/issue-paths.test.ts
new file mode 100644
index 000000000..8d7edf6c0
--- /dev/null
+++ b/src/app/api/measurements/batch/__tests__/issue-paths.test.ts
@@ -0,0 +1,183 @@
+/**
+ * `POST /api/measurements/batch` — which issue belongs to which entry.
+ *
+ * A whole-batch 422 (`measurement.batch.invalid`) lists every problem in
+ * `details.issues`. The native client splits such a batch: it drops the
+ * entries the issues name and resends the rest, so one bad reading does not
+ * cost the valid ones. That only works if every problem caused by one entry
+ * carries a path that starts `entries.<n>`, and if the problems that are not
+ * about an entry (the wrapper itself) never do. Both halves are pinned here,
+ * and the first case proves the split by resending what is left.
+ */
+import { describe, expect, it, vi, beforeEach } from "vitest";
+import { NextRequest } from "next/server";
+
+vi.mock("@/lib/db", () => ({
+  prisma: {
+    user: { update: vi.fn() },
+    measurement: { findMany: vi.fn() },
+    $transaction: vi.fn(async (fn: unknown) => {
+      if (typeof fn === "function") {
+        return (fn as (tx: unknown) => unknown)(prisma);
+      }
+    }),
+  },
+}));
+
+vi.mock("@/lib/measurements/reconcile-external-measurement", () => ({
+  reconcileExternalMeasurement: vi.fn(
+    async (_tx: unknown, input: Record<string, unknown>) => ({
+      status: "inserted",
+      row: { id: "row-1", ...input },
+    }),
+  ),
+}));
+
+vi.mock("@/lib/auth/session", () => ({ getSession: vi.fn() }));
+vi.mock("@/lib/auth/audit", () => ({
+  auditLog: vi.fn().mockResolvedValue(undefined),
+}));
+vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
+vi.mock("@/lib/db-compat", () => ({
+  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
+}));
+vi.mock("@/lib/rate-limit", () => ({ checkRateLimit: vi.fn() }));
+vi.mock("@/lib/jobs/pr-detection", () => ({
+  enqueuePrDetection: vi.fn().mockResolvedValue(undefined),
+}));
+vi.mock("@/lib/jobs/reminder-satisfy", () => ({
+  enqueueReminderSatisfy: vi.fn().mockResolvedValue(undefined),
+}));
+vi.mock("@/lib/cache/invalidate", () => ({
+  invalidateUserMeasurements: vi.fn(),
+}));
+vi.mock("@/lib/rollups/after-measurement-mutation", () => ({
+  afterMeasurementMutation: vi.fn().mockResolvedValue(undefined),
+}));
+vi.mock("@/lib/daily/morning-refresh-trigger", () => ({
+  maybeEnqueueMorningRefresh: vi.fn().mockResolvedValue(undefined),
+}));
+vi.mock("@/lib/arrivals/emit-shared", () => ({
+  emitDataArrival: vi.fn().mockResolvedValue(undefined),
+}));
+vi.mock("next/headers", () => ({
+  headers: vi.fn(async () => ({ get: () => null })),
+  cookies: vi.fn(async () => ({
+    get: () => undefined,
+    set: () => {},
+    delete: () => {},
+  })),
+}));
+
+import { POST } from "../route";
+import { prisma } from "@/lib/db";
+import { getSession } from "@/lib/auth/session";
+import { checkRateLimit } from "@/lib/rate-limit";
+
+const SESSION_OK = {
+  session: { id: "sess-1", expiresAt: new Date(Date.now() + 3_600_000) },
+  user: { id: "user-1", username: "testuser", role: "USER" as const },
+};
+
+function post(body: unknown) {
+  return POST(
+    new NextRequest("http://localhost/api/measurements/batch", {
+      method: "POST",
+      headers: { "content-type": "application/json" },
+      body: JSON.stringify(body),
+    }),
+  );
+}
+
+const AT = new Date(Date.now() - 3_600_000).toISOString();
+
+function entry(i: number, overrides: Record<string, unknown> = {}) {
+  return {
+    hkIdentifier: "HKQuantityTypeIdentifierHeartRate",
+    value: 64,
+    unit: "count/min",
+    startDate: AT,
+    endDate: AT,
+    externalId: `uuid-${i}`,
+    ...overrides,
+  };
+}
+
+type Issue = { path: string; code: string };
+
+async function issuesFor(body: unknown): Promise<Issue[]> {
+  const res = await post(body);
+  expect(res.status).toBe(422);
+  const json = (await res.json()) as {
+    details: { issues: Issue[] };
+    meta?: { errorCode?: string };
+  };
+  expect(json.meta?.errorCode).toBe("measurement.batch.invalid");
+  return json.details.issues;
+}
+
+/** The entry index an issue names, or null when it names the batch itself. */
+function entryIndex(path: string): number | null {
+  const m = /^entries\.(\d+)(?:\.|$)/.exec(path);
+  return m ? Number(m[1]) : null;
+}
+
+/** The paths that are about the batch wrapper and no single entry. */
+const BATCH_LEVEL_PATHS = new Set(["", "entries", "syncTrigger"]);
+
+beforeEach(() => {
+  vi.clearAllMocks();
+  vi.mocked(getSession).mockResolvedValue(SESSION_OK as never);
+  vi.mocked(checkRateLimit).mockResolvedValue({
+    allowed: true,
+    limit: 60,
+    remaining: 60,
+    resetAt: Date.now() + 60_000,
+  });
+  vi.mocked(prisma.measurement.findMany).mockResolvedValue([]);
+});
+
+describe("POST /api/measurements/batch — every entry problem names its entry", () => {
+  it("names each bad entry as entries.<n>, so the rest of the batch can be resent", async () => {
+    const entries = [
+      entry(0),
+      entry(1, { startDate: "yesterday" }),
+      entry(2),
+      entry(3, { value: "64" }),
+      "not an entry",
+      entry(5, { hkIdentifier: "", unit: "" }),
+      entry(6),
+    ];
+    const issues = await issuesFor({ entries });
+
+    expect(issues.length).toBeGreaterThan(0);
+    for (const issue of issues) {
+      expect(entryIndex(issue.path), issue.path).not.toBeNull();
+    }
+    const bad = new Set(issues.map((i) => entryIndex(i.path)));
+    expect([...bad].sort()).toEqual([1, 3, 4, 5]);
+
+    // The split the client performs: drop the named entries, resend the rest.
+    const kept = entries.filter((_, i) => !bad.has(i));
+    const res = await post({ entries: kept });
+    expect(res.status).toBe(200);
+  });
+
+  it("names the batch itself, never an entry, when the wrapper is wrong", async () => {
+    const cases: unknown[] = [
+      [],
+      { entries: [] },
+      { entries: "x" },
+      { entries: [entry(0)], syncTrigger: "sometimes" },
+    ];
+    let seen = 0;
+    for (const body of cases) {
+      for (const issue of await issuesFor(body)) {
+        expect(BATCH_LEVEL_PATHS.has(issue.path), issue.path).toBe(true);
+        expect(entryIndex(issue.path)).toBeNull();
+        seen += 1;
+      }
+    }
+    expect(seen).toBeGreaterThanOrEqual(cases.length);
+  });
+});
diff --git a/src/app/api/medications/[id]/compliance/route.ts b/src/app/api/medications/[id]/compliance/route.ts
index 5a11e30ba..367f82e11 100644
--- a/src/app/api/medications/[id]/compliance/route.ts
+++ b/src/app/api/medications/[id]/compliance/route.ts
@@ -7,6 +7,7 @@ import {
   buildCompliancePayload,
   complianceCacheKey,
   type CompliancePayload,
+  type CompliancePayloadWire,
 } from "@/lib/medications/compliance-payload";
 import { cachedSwr, caches, type ServerCache } from "@/lib/cache/server-cache";
 import { checkRateLimit } from "@/lib/rate-limit";
@@ -113,6 +114,16 @@ export const GET = apiHandler(
           },
     });
 
-    return apiSuccess(payload);
+    // The report windows ride the cached cell for the batched read only; this
+    // route's published shape does not carry them.
+    const wire: CompliancePayloadWire = {
+      applicable: payload.applicable,
+      notApplicableReason: payload.notApplicableReason,
+      compliance7: payload.compliance7,
+      compliance30: payload.compliance30,
+      dailyCompliance: payload.dailyCompliance,
+      complianceDisplay: payload.complianceDisplay,
+    };
+    return apiSuccess(wire);
   },
 );
diff --git a/src/app/api/medications/[id]/intake/__tests__/route.test.ts b/src/app/api/medications/[id]/intake/__tests__/route.test.ts
index 5e068be58..1705cb8a1 100644
--- a/src/app/api/medications/[id]/intake/__tests__/route.test.ts
+++ b/src/app/api/medications/[id]/intake/__tests__/route.test.ts
@@ -71,6 +71,7 @@ vi.mock("@/lib/medications/inventory/consumption", () => ({
 
 vi.mock("@/lib/medications/route-guards", () => ({
   assertMedicationOwnership: vi.fn().mockResolvedValue(null),
+  assertMedicationTakesIntake: vi.fn().mockResolvedValue(null),
 }));
 
 vi.mock("@/lib/cache/invalidate", () => ({
diff --git a/src/app/api/medications/[id]/intake/__tests__/source-provenance.test.ts b/src/app/api/medications/[id]/intake/__tests__/source-provenance.test.ts
index b7a9a4519..053deba20 100644
--- a/src/app/api/medications/[id]/intake/__tests__/source-provenance.test.ts
+++ b/src/app/api/medications/[id]/intake/__tests__/source-provenance.test.ts
@@ -79,6 +79,7 @@ vi.mock("@/lib/medications/lifecycle", () => ({
 
 vi.mock("@/lib/medications/route-guards", () => ({
   assertMedicationOwnership: vi.fn().mockResolvedValue(null),
+  assertMedicationTakesIntake: vi.fn().mockResolvedValue(null),
 }));
 
 vi.mock("@/lib/cache/invalidate", () => ({
diff --git a/src/app/api/medications/[id]/intake/route.ts b/src/app/api/medications/[id]/intake/route.ts
index b61961363..2cf36546a 100644
--- a/src/app/api/medications/[id]/intake/route.ts
+++ b/src/app/api/medications/[id]/intake/route.ts
@@ -27,7 +27,10 @@ import {
   restoreForIntake,
 } from "@/lib/medications/inventory/consumption";
 import { reconcileOneShotState } from "@/lib/medications/lifecycle";
-import { assertMedicationOwnership } from "@/lib/medications/route-guards";
+import {
+  assertMedicationOwnership,
+  assertMedicationTakesIntake,
+} from "@/lib/medications/route-guards";
 import { invalidateUserMedications } from "@/lib/cache/invalidate";
 import { queueMedicationIntakeSync } from "@/lib/notifications/medication-intake-sync";
 import { dispatchMedicationIntakeWebClear } from "@/lib/notifications/web-push-clear";
@@ -111,8 +114,11 @@ async function postIntake(request: NextRequest, { params }: RouteParams) {
   const intakeSource = authMethod === "bearer" ? "API" : "WEB";
 
   const { id } = await params;
-  // v1.4.25 W21 Fix-N — privacy gate hoisted to the shared helper.
-  const guard = await assertMedicationOwnership(id, user.id);
+  // v1.4.25 W21 Fix-N — privacy gate hoisted to the shared helper. This is a
+  // dose write, so the guard also refuses a record-only medication with
+  // `medication.intake.notTracked` (iOS #116, item 15): its history stays,
+  // but a new dose would be stored and then counted nowhere.
+  const guard = await assertMedicationTakesIntake(id, user.id);
   if (guard) return guard;
 
   const { data: body, error: jsonError } = await safeJson(request, {
diff --git a/src/app/api/medications/compliance/__tests__/route.test.ts b/src/app/api/medications/compliance/__tests__/route.test.ts
index 0f49d87d4..1f7059142 100644
--- a/src/app/api/medications/compliance/__tests__/route.test.ts
+++ b/src/app/api/medications/compliance/__tests__/route.test.ts
@@ -274,4 +274,70 @@ describe("GET /api/medications/compliance", () => {
     );
     expect(prisma.medication.findMany).not.toHaveBeenCalled();
   });
+
+  it("carries one account-wide figure in meta.aggregate, from applicable medications only", async () => {
+    vi.mocked(prisma.medication.findMany).mockResolvedValue([
+      medication("med-1"),
+      medication("med-2"),
+      {
+        ...medication("mirror-1"),
+        externalSource: "APPLE_HEALTH",
+        externalId: "hk-concept-1",
+        schedules: [],
+      },
+    ] as never);
+
+    const res = await (GET as (req: Request) => Promise<Response>)(
+      new Request("http://localhost"),
+    );
+    const body = await res.json();
+    const items = body.data as Array<{
+      compliance7: { totalExpected: number; missed: number };
+      compliance30: { totalExpected: number };
+    }>;
+    expect(body.meta.aggregate.medicationCount).toBe(2);
+    // Summed over the two scheduled medications; the mirror adds nothing.
+    expect(body.meta.aggregate.compliance7.totalExpected).toBe(
+      items[0].compliance7.totalExpected + items[1].compliance7.totalExpected,
+    );
+    expect(body.meta.aggregate.compliance30.totalExpected).toBe(
+      items[0].compliance30.totalExpected + items[1].compliance30.totalExpected,
+    );
+    expect(body.meta.aggregate.compliance7.totalExpected).toBeGreaterThan(0);
+    expect(body.meta).not.toHaveProperty("days");
+  });
+
+  it("answers meta.aggregate null when no medication's adherence applies", async () => {
+    vi.mocked(prisma.medication.findMany).mockResolvedValue([] as never);
+    const res = await (GET as (req: Request) => Promise<Response>)(
+      new Request("http://localhost"),
+    );
+    const body = await res.json();
+    expect(body.meta).toEqual({ aggregate: null });
+  });
+
+  it("adds a complianceN block per medication and to the aggregate on ?days=N", async () => {
+    vi.mocked(prisma.medication.findMany).mockResolvedValue([
+      medication("med-1"),
+    ] as never);
+    const res = await (GET as (req: Request) => Promise<Response>)(
+      new Request("http://localhost/api/medications/compliance?days=90"),
+    );
+    expect(res.status).toBe(200);
+    const body = await res.json();
+    const item = body.data[0] as Record<string, { totalExpected: number }>;
+    expect(item.compliance90.totalExpected).toBeGreaterThan(
+      item.compliance30.totalExpected,
+    );
+    expect(body.meta.days).toBe(90);
+    expect(body.meta.aggregate.compliance90).toEqual(item.compliance90);
+  });
+
+  it("refuses a window the ledger does not serve", async () => {
+    const res = await (GET as (req: Request) => Promise<Response>)(
+      new Request("http://localhost/api/medications/compliance?days=45"),
+    );
+    expect(res.status).toBe(422);
+    expect(prisma.medication.findMany).not.toHaveBeenCalled();
+  });
 });
diff --git a/src/app/api/medications/compliance/route.ts b/src/app/api/medications/compliance/route.ts
index 59d17ee03..d8e0bd49e 100644
--- a/src/app/api/medications/compliance/route.ts
+++ b/src/app/api/medications/compliance/route.ts
@@ -1,15 +1,22 @@
 import pLimit from "p-limit";
+import { z } from "zod/v4";
 
 import { COURSES_COMPLIANCE_SELECT } from "@/lib/analytics/compliance";
 import { prisma } from "@/lib/db";
 import { apiHandler, requireRecordAuth } from "@/lib/api-handler";
 import { annotate } from "@/lib/logging/context";
-import { apiSuccess, apiError } from "@/lib/api-response";
 import {
+  apiError,
+  apiSuccessWithMeta,
+  returnAllZodIssues,
+} from "@/lib/api-response";
+import {
+  aggregateCompliance,
   buildCompliancePayload,
   complianceCacheKey,
   type CompliancePayload,
 } from "@/lib/medications/compliance-payload";
+import { COMPLIANCE_REPORT_DAYS } from "@/lib/analytics/compliance";
 import { cachedSwr, caches, type ServerCache } from "@/lib/cache/server-cache";
 import { checkRateLimit } from "@/lib/rate-limit";
 import { TRACKED_INTAKE_WHERE } from "@/lib/medications/intake-tracking";
@@ -28,9 +35,29 @@ import { DEFAULT_TIMEZONE } from "@/lib/tz/format";
  * wire shape — the cards render rates / streak / display block only; the
  * detail page keeps the per-id route for the grid.
  */
-export const GET = apiHandler(async () => {
+/**
+ * `?days=N` adds a `complianceN` block per medication and to the account
+ * aggregate, for a report that covers its own window rather than the fixed 7
+ * and 30 days. Only the windows the ledger serves are accepted; anything else
+ * is a 422, never a silently rounded window.
+ */
+const querySchema = z.object({
+  days: z
+    .enum(COMPLIANCE_REPORT_DAYS.map(String) as [string, ...string[]])
+    .transform(Number)
+    .optional(),
+});
+
+export const GET = apiHandler(async (request: Request) => {
   const { user, actor } = await requireRecordAuth("read", "medications");
 
+  const query = querySchema.safeParse(
+    Object.fromEntries(new URL(request.url).searchParams),
+  );
+  if (!query.success) return returnAllZodIssues(query.error, 422);
+  const days = query.data.days as
+    (typeof COMPLIANCE_REPORT_DAYS)[number] | undefined;
+
   // v1.36.0 — the bucket keys on the ACTOR while everything below it scopes to
   // the record. Two reasons, and both are the same reason from opposite ends:
   // a delegate hammering this route must burn their own allowance rather than
@@ -74,7 +101,7 @@ export const GET = apiHandler(async () => {
   // on a cold cache. Warm / stale cells return without touching the
   // database at all; `Promise.all` keeps the response in list order.
   const limit = pLimit(3);
-  const items = await Promise.all(
+  const results = await Promise.all(
     medications.map((medication) =>
       limit(async () => {
         const payload = await cachedSwr(
@@ -83,22 +110,69 @@ export const GET = apiHandler(async () => {
           () => buildCompliancePayload(medication, user.id, userTz),
           annotate,
         );
-        return {
-          medicationId: medication.id,
-          applicable: payload.applicable,
-          notApplicableReason: payload.notApplicableReason,
-          compliance7: payload.compliance7,
-          compliance30: payload.compliance30,
-          complianceDisplay: payload.complianceDisplay,
-        };
+        return { payload, medicationId: medication.id };
       }),
     ),
   );
 
+  // A cell cached before the report windows existed carries none; it reads
+  // as the not-applicable placeholder until its next rebuild rather than
+  // failing the whole read.
+  const windowFor = (payload: CompliancePayload, n: number) =>
+    payload.reportWindows?.[n as keyof CompliancePayload["reportWindows"]];
+
+  const items = results.map(({ payload, medicationId }) => ({
+    medicationId,
+    applicable: payload.applicable,
+    notApplicableReason: payload.notApplicableReason,
+    compliance7: payload.compliance7,
+    compliance30: payload.compliance30,
+    ...(days !== undefined && days !== 30
+      ? { [`compliance${days}`]: windowFor(payload, days) ?? null }
+      : {}),
+    complianceDisplay: payload.complianceDisplay,
+  }));
+
+  // The account-wide figure the widget ring and the report show, built only
+  // from medications whose adherence means something (`applicable`).
+  const applicable = results
+    .map((r) => r.payload)
+    .filter((payload) => payload.applicable);
+  const reportWindow =
+    days !== undefined && days !== 30
+      ? applicable.map((payload) => windowFor(payload, days))
+      : [];
+  const aggregate =
+    applicable.length === 0
+      ? null
+      : {
+          compliance7: aggregateCompliance(
+            applicable.map((p) => p.compliance7),
+          ),
+          compliance30: aggregateCompliance(
+            applicable.map((p) => p.compliance30),
+          ),
+          ...(days !== undefined && days !== 30
+            ? {
+                [`compliance${days}`]: reportWindow.every(Boolean)
+                  ? aggregateCompliance(
+                      reportWindow as NonNullable<
+                        (typeof reportWindow)[number]
+                      >[],
+                    )
+                  : null,
+              }
+            : {}),
+          medicationCount: applicable.length,
+        };
+
   annotate({
     action: { name: "medication.compliance_summary.read" },
-    meta: { count: items.length },
+    meta: { count: items.length, days: days ?? null },
   });
 
-  return apiSuccess(items);
+  return apiSuccessWithMeta(items, {
+    aggregate,
+    ...(days !== undefined ? { days } : {}),
+  });
 });
diff --git a/src/app/api/medications/intake/__tests__/route.test.ts b/src/app/api/medications/intake/__tests__/route.test.ts
index cc1bf78d9..473eb90f9 100644
--- a/src/app/api/medications/intake/__tests__/route.test.ts
+++ b/src/app/api/medications/intake/__tests__/route.test.ts
@@ -381,6 +381,45 @@ describe("POST /api/medications/intake", () => {
     expect(res.status).toBe(422);
   });
 
+  it("refuses to resolve an open dose of a record-only medication with medication.intake.notTracked", async () => {
+    vi.mocked(getSession).mockResolvedValue(SESSION_OK as never);
+    vi.mocked(prisma.medicationIntakeEvent.findFirst).mockResolvedValue({
+      id: "e1",
+      userId: "user-1",
+      medicationId: "m1",
+      takenAt: null,
+      skipped: false,
+      scheduledFor: new Date("2026-05-18T10:00:00.000Z"),
+      medication: { trackIntake: false },
+    } as never);
+    const res = await POST(req({ intakeId: "e1", status: "taken" }));
+    expect(res.status).toBe(422);
+    const body = await res.json();
+    expect(body.meta?.errorCode).toBe("medication.intake.notTracked");
+    expect(prisma.medicationIntakeEvent.update).not.toHaveBeenCalled();
+    expect(consumeForIntake).not.toHaveBeenCalled();
+  });
+
+  it("still lets the owner correct a dose a record-only medication already has", async () => {
+    vi.mocked(getSession).mockResolvedValue(SESSION_OK as never);
+    vi.mocked(prisma.medicationIntakeEvent.findFirst).mockResolvedValue({
+      id: "e1",
+      userId: "user-1",
+      medicationId: "m1",
+      takenAt: new Date("2026-05-18T10:05:00.000Z"),
+      skipped: false,
+      scheduledFor: new Date("2026-05-18T10:00:00.000Z"),
+      medication: { trackIntake: false },
+    } as never);
+    vi.mocked(prisma.medicationIntakeEvent.update).mockResolvedValue({
+      id: "e1",
+      skipped: true,
+      takenAt: null,
+    } as never);
+    const res = await POST(req({ intakeId: "e1", status: "skipped" }));
+    expect(res.status).toBe(200);
+  });
+
   it("marks event as skipped", async () => {
     vi.mocked(getSession).mockResolvedValue(SESSION_OK as never);
     vi.mocked(prisma.medicationIntakeEvent.findFirst).mockResolvedValue({
diff --git a/src/app/api/medications/intake/bulk/__tests__/route.test.ts b/src/app/api/medications/intake/bulk/__tests__/route.test.ts
index 25765da23..464d57691 100644
--- a/src/app/api/medications/intake/bulk/__tests__/route.test.ts
+++ b/src/app/api/medications/intake/bulk/__tests__/route.test.ts
@@ -244,6 +244,29 @@ describe("POST /api/medications/intake/bulk — v1.8.2 reconcile", () => {
     vi.useRealTimers();
   });
 
+  it("skips an entry for a record-only medication as intake_not_tracked and keeps the rest", async () => {
+    vi.mocked(prisma.medication.findMany).mockResolvedValue([
+      { id: "med-1", trackIntake: false },
+    ] as never);
+    const res = await POST(
+      postReq({
+        entries: [
+          {
+            medicationId: "med-1",
+            scheduledFor: "2026-06-15T05:00:00.000Z",
+            takenAt: "2026-06-15T05:01:00.000Z",
+          },
+        ],
+      }),
+    );
+    expect(res.status).toBe(200);
+    const body = await res.json();
+    expect(body.data.entries).toEqual([
+      { index: 0, status: "skipped", reason: "intake_not_tracked" },
+    ]);
+    expect(prisma.medicationIntakeEvent.create).not.toHaveBeenCalled();
+  });
+
   it("C2 — a pending echo onto an already-TAKEN slot is reported duplicate, NOT a downgrade", async () => {
     // Existing TAKEN row at the 07:00 slot. The bulk entry is a pending
     // echo (no takenAt, skipped false) — must NOT clear takenAt.
diff --git a/src/app/api/medications/intake/bulk/route.ts b/src/app/api/medications/intake/bulk/route.ts
index 5064c0699..69fd01a1f 100644
--- a/src/app/api/medications/intake/bulk/route.ts
+++ b/src/app/api/medications/intake/bulk/route.ts
@@ -86,6 +86,10 @@ import type { InjectionSiteKey } from "@/lib/medications/injection-sites";
 import { queueMedicationIntakeSync } from "@/lib/notifications/medication-intake-sync";
 import { dispatchMedicationIntakeWebClearBulk } from "@/lib/notifications/web-push-clear";
 import { countOutstandingDosesToday } from "@/lib/medications/outstanding-doses";
+import {
+  INTAKE_NOT_TRACKED_REASON,
+  isRecordOnly,
+} from "@/lib/medications/intake-tracking";
 
 const MAX_ENTRIES_PER_BATCH = 500;
 const BATCH_RATE_LIMIT_MAX = 60;
@@ -256,6 +260,7 @@ async function postBulk(request: NextRequest): Promise<Response> {
       trackInjectionSites: true,
       allowedInjectionSites: true,
       externalSource: true,
+      trackIntake: true,
     },
   });
   const ownedSet = new Set(ownedMedications.map((m) => m.id));
@@ -366,6 +371,16 @@ async function postBulk(request: NextRequest): Promise<Response> {
       continue;
     }
 
+    // A record-only medication takes no new dose (iOS #116, item 15). The
+    // single-dose routes answer 422 `medication.intake.notTracked`; here the
+    // same decision is one entry's outcome, so the rest of the batch lands.
+    if (isRecordOnly(medById.get(entry.medicationId) ?? {})) {
+      const reason = INTAKE_NOT_TRACKED_REASON;
+      skipped.push({ index: i, reason });
+      results.push({ index: i, status: "skipped", reason });
+      continue;
+    }
+
     // Both dedup keys on this route are only idempotent while the value
     // is STABLE across client launches: `(userId, externalId)` for the
     // Apple dose event, and the `@unique` `idempotency_key` column for
diff --git a/src/app/api/medications/intake/route.ts b/src/app/api/medications/intake/route.ts
index 93c8edaad..e4f6b0ca7 100644
--- a/src/app/api/medications/intake/route.ts
+++ b/src/app/api/medications/intake/route.ts
@@ -54,7 +54,11 @@ import { queueMedicationIntakeSync } from "@/lib/notifications/medication-intake
 import { dispatchMedicationIntakeWebClear } from "@/lib/notifications/web-push-clear";
 import { notifyDelegatedIntake } from "@/lib/notifications/delegated-intake";
 import { countOutstandingDosesToday } from "@/lib/medications/outstanding-doses";
-import { TRACKED_INTAKE_EVENT_WHERE } from "@/lib/medications/intake-tracking";
+import {
+  TRACKED_INTAKE_EVENT_WHERE,
+  isRecordOnly,
+} from "@/lib/medications/intake-tracking";
+import { refuseUntrackedIntake } from "@/lib/medications/route-guards";
 
 // The query + body schemas moved to `@/lib/validations/medication` when this
 // endpoint joined the published contract: the OpenAPI registry generates from
@@ -265,6 +269,7 @@ export const POST = apiHandler(async (request: NextRequest) => {
           deliveryForm: true,
           trackInjectionSites: true,
           allowedInjectionSites: true,
+          trackIntake: true,
         },
       },
     },
@@ -273,6 +278,16 @@ export const POST = apiHandler(async (request: NextRequest) => {
     return apiError("Intake event not found", 404);
   }
 
+  // A record-only medication keeps the doses it already has, and an owner may
+  // still correct one of those (that is an edit of history). What it no longer
+  // takes is a NEW dose: resolving or snoozing an event that is still open
+  // would record one, and it would then be counted nowhere (iOS #116, item
+  // 15). Refused by name, the same code the per-medication route answers with.
+  const stillOpen = existing.takenAt === null && !existing.skipped;
+  if (stillOpen && isRecordOnly(existing.medication)) {
+    return refuseUntrackedIntake();
+  }
+
   // v1.36.1 — this route is admitted for delegates because marking a dose is
   // the thing a person standing next to the patient needs to do. It is an
   // UPDATE, though, and two of the transitions it can express are not that.
diff --git a/src/app/api/mood/insights/__tests__/route.test.ts b/src/app/api/mood/insights/__tests__/route.test.ts
new file mode 100644
index 000000000..55836ce48
--- /dev/null
+++ b/src/app/api/mood/insights/__tests__/route.test.ts
@@ -0,0 +1,86 @@
+/**
+ * `GET /api/mood/insights?days=N` serves the stability score for the period
+ * a client shows. The aggregate is cached once per user with every window in
+ * it; the route picks one, names it, and keeps the per-window map off the
+ * wire.
+ */
+import { beforeEach, describe, expect, it, vi } from "vitest";
+
+vi.mock("@/lib/auth/session", () => ({ getSession: vi.fn() }));
+vi.mock("@/lib/modules/gate", () => ({
+  requireModuleEnabled: vi.fn(async () => ({ enabled: true })),
+}));
+vi.mock("@/lib/cache/server-cache", () => ({
+  cachedSwr: vi.fn(),
+  caches: { moodInsights: {} },
+}));
+vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
+vi.mock("@/lib/db-compat", () => ({
+  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
+}));
+vi.mock("next/headers", () => ({
+  headers: vi.fn(async () => ({ get: () => null })),
+  cookies: vi.fn(async () => ({
+    get: () => undefined,
+    set: () => {},
+    delete: () => {},
+  })),
+}));
+
+import { GET } from "../route";
+import { getSession } from "@/lib/auth/session";
+import { cachedSwr } from "@/lib/cache/server-cache";
+import { requireModuleEnabled } from "@/lib/modules/gate";
+
+const year = { score: 40, stdDev: 0.9, band: "variable", days: 300 };
+const month = { score: 90, stdDev: 0.2, band: "verySteady", days: 28 };
+
+const AGGREGATE = {
+  summary: { totalEntries: 300 },
+  heatmap: { windowDays: 365, cells: [] },
+  tags: [],
+  stability: year,
+  stabilityByWindow: { 30: month, 90: null, 180: year, 365: year },
+};
+
+const call = (query = "") =>
+  (GET as (req: Request) => Promise<Response>)(
+    new Request(`http://localhost/api/mood/insights${query}`),
+  );
+
+beforeEach(() => {
+  vi.resetAllMocks();
+  vi.mocked(getSession).mockResolvedValue({
+    session: { id: "s", expiresAt: new Date(Date.now() + 3_600_000) },
+    user: { id: "user-1", username: "u", role: "USER", timezone: "UTC" },
+  } as never);
+  vi.mocked(requireModuleEnabled).mockResolvedValue({ enabled: true } as never);
+  vi.mocked(cachedSwr).mockResolvedValue(AGGREGATE as never);
+});
+
+describe("GET /api/mood/insights — stability per period", () => {
+  it("serves the whole year by default and names the window", async () => {
+    const body = await (await call()).json();
+    expect(body.data.stability).toEqual(year);
+    expect(body.data.stabilityWindowDays).toBe(365);
+    expect(body.data).not.toHaveProperty("stabilityByWindow");
+  });
+
+  it("serves the chosen window as stability on ?days=30", async () => {
+    const body = await (await call("?days=30")).json();
+    expect(body.data.stability).toEqual(month);
+    expect(body.data.stabilityWindowDays).toBe(30);
+  });
+
+  it("answers null, not the year's score, when the window has too few days", async () => {
+    const body = await (await call("?days=90")).json();
+    expect(body.data.stability).toBeNull();
+    expect(body.data.stabilityWindowDays).toBe(90);
+  });
+
+  it("refuses a window it does not offer", async () => {
+    const res = await call("?days=45");
+    expect(res.status).toBe(422);
+    expect(cachedSwr).not.toHaveBeenCalled();
+  });
+});
diff --git a/src/app/api/mood/insights/route.ts b/src/app/api/mood/insights/route.ts
index 95d37c5c9..354d5895d 100644
--- a/src/app/api/mood/insights/route.ts
+++ b/src/app/api/mood/insights/route.ts
@@ -1,10 +1,14 @@
-import { apiSuccess } from "@/lib/api-response";
+import { z } from "zod/v4";
+
+import { apiSuccess, returnAllZodIssues } from "@/lib/api-response";
 import { apiHandler, requireAuth } from "@/lib/api-handler";
 import { annotate } from "@/lib/logging/context";
 import { cachedSwr, caches, type ServerCache } from "@/lib/cache/server-cache";
 import {
   fetchMoodAggregates,
+  MOOD_STABILITY_WINDOWS,
   type MoodAggregates,
+  type MoodStabilityWindow,
 } from "@/lib/insights/mood-aggregates";
 import { requireModuleEnabled } from "@/lib/modules/gate";
 
@@ -26,9 +30,28 @@ export const dynamic = "force-dynamic";
  * aggregate is served immediately and a single background recompute
  * warms a fresh one, so an active logger never re-pays the cold compute.
  */
-export const GET = apiHandler(async () => {
+/**
+ * `?days=N` cuts `stability` to the trailing N days, so a period picker shows
+ * the steadiness of the period it shows. Without it the score covers the
+ * whole year, as it always has; `stabilityWindowDays` names the window the
+ * served score covers either way.
+ */
+const querySchema = z.object({
+  days: z
+    .enum(MOOD_STABILITY_WINDOWS.map(String) as [string, ...string[]])
+    .transform((v) => Number(v) as MoodStabilityWindow)
+    .optional(),
+});
+
+export const GET = apiHandler(async (request: Request) => {
   const { user } = await requireAuth();
 
+  const query = querySchema.safeParse(
+    Object.fromEntries(new URL(request.url).searchParams),
+  );
+  if (!query.success) return returnAllZodIssues(query.error, 422);
+  const stabilityWindowDays: MoodStabilityWindow = query.data.days ?? 365;
+
   // Per-domain gate: the mood-insights aggregate surface only serves the
   // mood module's analysis page, so it must be gated on the mood module
   // (mirrors `/api/insights/mood-status`). Disabled ⇒ 403 module.disabled.
@@ -51,5 +74,17 @@ export const GET = apiHandler(async () => {
     },
   });
 
-  return apiSuccess(result);
+  // The per-window map is the cache's, not the wire's: the chosen window is
+  // served as `stability`. An aggregate cached before the map existed has
+  // only the year, so a shorter window reads as not yet computed (`null`)
+  // until the next rebuild rather than as the year's score under a new name.
+  const { stabilityByWindow, ...wire } = result;
+  return apiSuccess({
+    ...wire,
+    stability:
+      stabilityWindowDays === 365
+        ? result.stability
+        : (stabilityByWindow?.[stabilityWindowDays] ?? null),
+    stabilityWindowDays,
+  });
 });
diff --git a/src/lib/analytics/compliance/display.ts b/src/lib/analytics/compliance/display.ts
index f958c417a..ac2f8cea2 100644
--- a/src/lib/analytics/compliance/display.ts
+++ b/src/lib/analytics/compliance/display.ts
@@ -496,9 +496,20 @@ export function calculateCompliance(
  * `[ledgerFrom, now]`; the caller carves the 90-day heatmap out of it by
  * filtering on `row.at`.
  */
+/**
+ * The report windows a client may ask the batched compliance read for
+ * (`GET /api/medications/compliance?days=N`), beyond the 7 and 30 days every
+ * payload carries. Each is a suffix of the 365-day ledger window, so all of
+ * them are tallies over the rows the bundle already minted.
+ */
+export const COMPLIANCE_REPORT_DAYS = [30, 60, 90, 180, 365] as const;
+export type ComplianceReportDays = (typeof COMPLIANCE_REPORT_DAYS)[number];
+
 export interface MedicationComplianceBundle {
   compliance7: ComplianceResult;
   compliance30: ComplianceResult;
+  /** One result per report window, keyed by its length in days. */
+  reportWindows: Record<ComplianceReportDays, ComplianceResult>;
   complianceDisplay: ComplianceDisplay;
   /** Unified ledger rows over `[ledgerFrom, now]`, chronological. */
   ledgerRows: DoseHistoryRow[];
@@ -704,9 +715,17 @@ export function buildMedicationComplianceBundle(
     currentDose,
   };
 
+  const reportWindows = Object.fromEntries(
+    COMPLIANCE_REPORT_DAYS.map((days) => [
+      days,
+      days === 30 ? compliance30 : resultForWindow(days),
+    ]),
+  ) as Record<ComplianceReportDays, ComplianceResult>;
+
   return {
     compliance7,
     compliance30,
+    reportWindows,
     complianceDisplay,
     ledgerRows,
     ledgerFrom,
diff --git a/src/lib/api-response.ts b/src/lib/api-response.ts
index c2403c1dd..0f22c09d6 100644
--- a/src/lib/api-response.ts
+++ b/src/lib/api-response.ts
@@ -6,6 +6,20 @@ export function apiSuccess<T>(data: T, status = 200) {
   return NextResponse.json({ data, error: null }, { status });
 }
 
+/**
+ * A success envelope that also carries `meta`: figures ABOUT the payload
+ * (an aggregate across its rows, the window it was cut to) that do not belong
+ * inside any one row. `data` keeps the shape the route always had, so a
+ * client that never reads `meta` decodes the response unchanged.
+ */
+export function apiSuccessWithMeta<T>(
+  data: T,
+  meta: Record<string, unknown>,
+  status = 200,
+) {
+  return NextResponse.json({ data, error: null, meta }, { status });
+}
+
 /**
  * Sanitised view of a single Zod issue. We surface `path`, `code`,
  * `message` and — for `unrecognized_keys` only — the bounded `keys`
diff --git a/src/lib/auth/passkey.ts b/src/lib/auth/passkey.ts
index 8598beb0d..d2847ad82 100644
--- a/src/lib/auth/passkey.ts
+++ b/src/lib/auth/passkey.ts
@@ -304,6 +304,33 @@ export async function createAuthenticationOptions(userId?: string) {
   return { options, challengeId: challenge.id };
 }
 
+/**
+ * Why a passkey assertion could not be checked at all — as opposed to an
+ * assertion that was checked and did not verify. Each kind is a case a
+ * client can name to the person (the passkey was removed here, the sign-in
+ * took too long), so the sign-in route answers it with its own status and
+ * `meta.errorCode` instead of letting it surface as a server fault.
+ *
+ * - `challenge_expired`: the challenge is gone (expired, already used, never
+ *   issued) or was begun for a different account.
+ * - `unknown_passkey`: no passkey with this credential id is registered here.
+ * - `malformed`: the assertion body is not an authentication response.
+ * - `verification_failed`: the WebAuthn library refused the assertion
+ *   (origin, RP id, challenge or signature mismatch).
+ */
+export type PasskeyAuthErrorKind =
+  "challenge_expired" | "unknown_passkey" | "malformed" | "verification_failed";
+
+export class PasskeyAuthError extends Error {
+  constructor(
+    readonly kind: PasskeyAuthErrorKind,
+    message: string,
+  ) {
+    super(message);
+    this.name = "PasskeyAuthError";
+  }
+}
+
 export async function verifyAuthentication(
   challengeId: string,
   response: unknown,
@@ -318,7 +345,10 @@ export async function verifyAuthentication(
     type: "authentication",
   });
   if (!challenge) {
-    throw new Error("Challenge expired or not found");
+    throw new PasskeyAuthError(
+      "challenge_expired",
+      "Challenge expired or not found",
+    );
   }
 
   // v1.4.43 W13 L-3 — explicit Zod narrowing instead of the previous
@@ -329,7 +359,10 @@ export async function verifyAuthentication(
   // type-narrowing gap a future refactor could trip on.
   const parsed = authenticationResponseSchema.safeParse(response);
   if (!parsed.success) {
-    throw new Error("Malformed passkey authentication response");
+    throw new PasskeyAuthError(
+      "malformed",
+      "Malformed passkey authentication response",
+    );
   }
   const typedResponse = parsed.data as unknown as AuthenticationResponseJSON;
 
@@ -340,27 +373,41 @@ export async function verifyAuthentication(
   });
 
   if (!passkey) {
-    throw new Error("Passkey not found");
+    throw new PasskeyAuthError("unknown_passkey", "Passkey not found");
   }
 
   // A challenge begun for one account (the re-proof arm names the account)
   // is answered only by that account's passkey.
   if (challenge.userId !== null && challenge.userId !== passkey.userId) {
-    throw new Error("Challenge expired or not found");
+    throw new PasskeyAuthError(
+      "challenge_expired",
+      "Challenge expired or not found",
+    );
   }
 
-  const verification = await verifyAuthenticationResponse({
-    response: typedResponse,
-    expectedChallenge: challenge.challenge,
-    expectedOrigin: getExpectedOrigin(),
-    expectedRPID: getRpId(),
-    credential: {
-      id: passkey.credentialId,
-      publicKey: passkey.credentialPublicKey,
-      counter: Number(passkey.counter),
-      transports: passkey.transports as Transport[],
-    },
-  });
+  let verification: VerifiedAuthenticationResponse;
+  try {
+    verification = await verifyAuthenticationResponse({
+      response: typedResponse,
+      expectedChallenge: challenge.challenge,
+      expectedOrigin: getExpectedOrigin(),
+      expectedRPID: getRpId(),
+      credential: {
+        id: passkey.credentialId,
+        publicKey: passkey.credentialPublicKey,
+        counter: Number(passkey.counter),
+        transports: passkey.transports as Transport[],
+      },
+    });
+  } catch (err) {
+    // The library throws, rather than answering `verified: false`, for an
+    // origin, RP id or challenge mismatch and for a bad signature. Those are
+    // a refused assertion, not a server fault.
+    throw new PasskeyAuthError(
+      "verification_failed",
+      err instanceof Error ? err.message : "Passkey verification failed",
+    );
+  }
 
   if (verification.verified) {
     // Update counter + stamp last-used so the management UI can surface
diff --git a/src/lib/glucose.ts b/src/lib/glucose.ts
index c525463e4..f03203b8c 100644
--- a/src/lib/glucose.ts
+++ b/src/lib/glucose.ts
@@ -95,6 +95,18 @@ export function glucoseBandParams(
   };
 }
 
+/**
+ * The stored glucose-unit choice as the closed pair, or `null` when none was
+ * made. The column is free text (a restored backup writes it unchecked), so a
+ * value that is neither unit reads as no choice rather than passing through to
+ * a client that decodes the pair.
+ */
+export function storedGlucoseUnit(
+  value: string | null | undefined,
+): GlucoseUnit | null {
+  return value === "mg/dL" || value === "mmol/L" ? value : null;
+}
+
 export function resolveGlucoseUnit(
   userPreference: string | null | undefined,
 ): GlucoseUnit {
diff --git a/src/lib/insights/__tests__/mood-aggregates.test.ts b/src/lib/insights/__tests__/mood-aggregates.test.ts
index 25c98de65..8b69a9ebc 100644
--- a/src/lib/insights/__tests__/mood-aggregates.test.ts
+++ b/src/lib/insights/__tests__/mood-aggregates.test.ts
@@ -410,6 +410,23 @@ describe("computeMoodAggregates", () => {
     ]);
     expect(agg.stability).toBeNull();
   });
+
+  it("scores stability per trailing window, so a steady month after a turbulent year reads steady", () => {
+    // Days 0..29 sit at 4; days 30..119 swing between 1 and 5.
+    const entries: MoodAggregateEntry[] = [];
+    for (let d = 0; d < 30; d++) entries.push(entry(d, 4));
+    for (let d = 30; d < 120; d++) entries.push(entry(d, d % 2 ? 1 : 5));
+    const agg = computeMoodAggregates({ entries, measurements: [], now: NOW });
+
+    expect(agg.stabilityByWindow[30]?.score).toBe(100);
+    expect(agg.stabilityByWindow[30]?.days).toBe(30);
+    expect(agg.stabilityByWindow[90]?.score).toBeLessThan(
+      agg.stabilityByWindow[30]!.score,
+    );
+    // The whole-year entry is the score `stability` has always carried.
+    expect(agg.stabilityByWindow[365]).toEqual(agg.stability);
+    expect(agg.stability?.days).toBe(120);
+  });
 });
 
 describe("bucketForHour", () => {
diff --git a/src/lib/insights/mood-aggregates.ts b/src/lib/insights/mood-aggregates.ts
index 70dff13dd..458382e7b 100644
--- a/src/lib/insights/mood-aggregates.ts
+++ b/src/lib/insights/mood-aggregates.ts
@@ -328,6 +328,14 @@ export function pairDailyBuckets(
 
 export type HeatmapWindowDays = 30 | 90 | 365;
 
+/**
+ * The trailing windows the stability score is offered over. 365 is the
+ * whole daily series the aggregate keeps, which is what `stability` has
+ * always covered.
+ */
+export const MOOD_STABILITY_WINDOWS = [30, 90, 180, 365] as const;
+export type MoodStabilityWindow = (typeof MOOD_STABILITY_WINDOWS)[number];
+
 /**
  * Adaptive heatmap window so the grid is never mostly-empty.
  *
@@ -497,6 +505,13 @@ export interface MoodAggregates {
    * descriptive band. `null` for a sparse logger (< STABILITY_MIN_DAYS).
    */
   stability: MoodStability | null;
+  /**
+   * The same score over the shorter trailing windows a client can pick
+   * (`GET /api/mood/insights?days=N`). Cached with the rest of the aggregate
+   * so a period switch costs nothing; the route serves the chosen one as
+   * `stability` and does not publish this map.
+   */
+  stabilityByWindow: Record<MoodStabilityWindow, MoodStability | null>;
   tags: TagSummaryRow[];
   /**
    * v1.38 — how the day's pleasantness sat on days carrying each context
@@ -608,6 +623,16 @@ export function computeMoodAggregates(args: {
   const weekday = computeWeekdayAverages(moodDaily, now, tz);
   const timeOfDay = computeTimeOfDayAverages(entries);
   const stability = computeMoodStability(moodDaily);
+  const stabilityByWindow = Object.fromEntries(
+    MOOD_STABILITY_WINDOWS.map((days) => [
+      days,
+      days === 365
+        ? stability
+        : computeMoodStability(
+            moodDaily.filter((bucket) => bucket.dayOffset < days),
+          ),
+    ]),
+  ) as Record<MoodStabilityWindow, MoodStability | null>;
   const tags = computeTagSummary(entries, now);
   const structuredTags = computeStructuredTagSummary(entries, now);
   const tagInfluence = computeTagInfluence(entries, now);
@@ -689,6 +714,7 @@ export function computeMoodAggregates(args: {
     weekday,
     timeOfDay,
     stability,
+    stabilityByWindow,
     tags,
     structuredTags,
     tagInfluence,
diff --git a/src/lib/jobs/__tests__/medication-reminder-check.test.ts b/src/lib/jobs/__tests__/medication-reminder-check.test.ts
index 89d87ce9e..ace53d2c0 100644
--- a/src/lib/jobs/__tests__/medication-reminder-check.test.ts
+++ b/src/lib/jobs/__tests__/medication-reminder-check.test.ts
@@ -223,6 +223,7 @@ describe("handleReminderCheck per-slot reminder windows", () => {
         metadata: expect.objectContaining({
           phase: "ORANGE",
           timeOfDay: "08:00",
+          followUp: true,
         }),
       }),
     );
@@ -248,6 +249,34 @@ describe("handleReminderCheck per-slot reminder windows", () => {
         metadata: expect.objectContaining({
           phase: "YELLOW",
           timeOfDay: "08:00",
+          // GREEN announced this window; YELLOW escalates an open dose.
+          followUp: true,
+        }),
+      }),
+    );
+  });
+
+  it("marks the phase that announces the dose as the one reminder that is not a follow-up", async () => {
+    vi.useFakeTimers();
+    // 55 minutes before the 09:30 end of a 07:30 to 09:30 window: GREEN.
+    vi.setSystemTime(new Date("2026-07-28T08:35:00.000Z"));
+    prismaMock.medication.findMany.mockResolvedValue([
+      medicationWithSchedule({
+        windowEnd: "18:00",
+        timesOfDay: ["08:00", "18:00"],
+        doseWindows: [{ timeOfDay: "08:00", start: "07:30", end: "09:30" }],
+      }),
+    ] as never);
+    setIntakeEvents([]);
+
+    await handleReminderCheck([]);
+
+    expect(dispatchNotification).toHaveBeenCalledWith(
+      expect.objectContaining({
+        metadata: expect.objectContaining({
+          phase: "GREEN",
+          timeOfDay: "08:00",
+          followUp: false,
         }),
       }),
     );
diff --git a/src/lib/jobs/__tests__/reminder-phases.test.ts b/src/lib/jobs/__tests__/reminder-phases.test.ts
index 8a7b38263..00515b6de 100644
--- a/src/lib/jobs/__tests__/reminder-phases.test.ts
+++ b/src/lib/jobs/__tests__/reminder-phases.test.ts
@@ -3,6 +3,7 @@ import { describe, it, expect } from "vitest";
 import {
   determinePhase,
   getPhaseKeyboard,
+  openingPhase,
   getPhaseMessage,
   resolvePhaseThresholds,
   DEFAULT_PHASE_CONFIG,
@@ -142,3 +143,26 @@ describe("getPhaseKeyboard — localised", () => {
     }
   });
 });
+
+describe("openingPhase", () => {
+  it("is GREEN for a window longer than the YELLOW lead", () => {
+    const t = resolvePhaseThresholds(DEFAULT_PHASE_CONFIG, 120);
+    expect(openingPhase(t, 120)).toBe("GREEN");
+  });
+
+  it("is YELLOW for a point slot, which never shows GREEN", () => {
+    const t = resolvePhaseThresholds(DEFAULT_PHASE_CONFIG, 0);
+    expect(openingPhase(t, 0)).toBe("YELLOW");
+    // The same window walked tick by tick reaches YELLOW before anything else.
+    expect(determinePhase(30, -30, t)).toBe("YELLOW");
+    expect(determinePhase(45, -45, t)).toBeNull();
+  });
+
+  it("is YELLOW when the GREEN lead is not longer than the YELLOW lead", () => {
+    const t = resolvePhaseThresholds(
+      { ...DEFAULT_PHASE_CONFIG, greenValue: 20, yellowValue: 30 },
+      120,
+    );
+    expect(openingPhase(t, 120)).toBe("YELLOW");
+  });
+});
diff --git a/src/lib/jobs/reminder-phases.ts b/src/lib/jobs/reminder-phases.ts
index 08100eac5..8447e17ea 100644
--- a/src/lib/jobs/reminder-phases.ts
+++ b/src/lib/jobs/reminder-phases.ts
@@ -84,6 +84,31 @@ export function resolvePhaseThresholds(
   };
 }
 
+/**
+ * The first phase a slot's window reaches, which is the reminder that
+ * announces the dose; every later phase is a follow-up for a dose that is
+ * still open.
+ *
+ * It is not always GREEN. GREEN needs the window to have opened AND to be
+ * within `greenMinBefore` of its end, while YELLOW needs only the second
+ * condition with the smaller `yellowMinBefore`. A window no longer than the
+ * YELLOW lead (a point slot such as 07:00 to 07:00 is zero minutes long)
+ * reaches YELLOW first and never shows GREEN, and so does any configuration
+ * whose GREEN lead is not longer than its YELLOW lead.
+ */
+export function openingPhase(
+  thresholds: ReturnType<typeof resolvePhaseThresholds>,
+  windowDurationMin: number,
+): ReminderPhase {
+  if (
+    windowDurationMin <= thresholds.yellowMinBefore ||
+    thresholds.greenMinBefore <= thresholds.yellowMinBefore
+  ) {
+    return "YELLOW";
+  }
+  return "GREEN";
+}
+
 /**
  * Determine the current phase for a schedule based on minutes to window end.
  *
diff --git a/src/lib/jobs/reminder/medication-reminder-check.ts b/src/lib/jobs/reminder/medication-reminder-check.ts
index 41958f516..af5929de3 100644
--- a/src/lib/jobs/reminder/medication-reminder-check.ts
+++ b/src/lib/jobs/reminder/medication-reminder-check.ts
@@ -31,6 +31,7 @@ import {
   determinePhase,
   getPhaseMessage,
   getPhaseKeyboard,
+  openingPhase,
 } from "@/lib/jobs/reminder-phases";
 import {
   claimNotificationEvent,
@@ -555,6 +556,9 @@ export async function handleReminderCheck(
                       windowStart: phaseWindow.start,
                       minutesToEnd,
                       currentPhase,
+                      followUp:
+                        currentPhase !==
+                        openingPhase(thresholds, windowDuration),
                     }
                   : null;
               })
@@ -570,6 +574,7 @@ export async function handleReminderCheck(
               windowStart,
               minutesToEnd,
               currentPhase,
+              followUp,
             } = phaseCandidate;
             const slotInstant = slotScheduledFor.getTime();
             if (liveEraStart !== null && slotInstant < liveEraStart) {
@@ -767,6 +772,12 @@ export async function handleReminderCheck(
                     medicationId: med.id,
                     scheduleId: schedule.id,
                     phase: currentPhase,
+                    // False for the reminder that announces the dose (the
+                    // slot's opening phase), true for every escalation after
+                    // it. A client that reminds locally at dose time
+                    // (`medication.clientManaged`) replaces only the first
+                    // one, so only that one is kept off APNs.
+                    followUp,
                     date: slotScheduledFor.toLocaleDateString("sv-SE", {
                       timeZone: userTz,
                     }),
diff --git a/src/lib/medications/__tests__/compliance-aggregate.test.ts b/src/lib/medications/__tests__/compliance-aggregate.test.ts
new file mode 100644
index 000000000..5c32fcffb
--- /dev/null
+++ b/src/lib/medications/__tests__/compliance-aggregate.test.ts
@@ -0,0 +1,44 @@
+import { describe, expect, it } from "vitest";
+
+import { aggregateCompliance } from "../compliance-payload";
+
+function result(taken: number, missed: number, skipped = 0, streak = 0) {
+  return {
+    totalExpected: taken + missed + skipped,
+    taken,
+    skipped,
+    missed,
+    rate:
+      taken + missed > 0 ? Math.round((100 * taken) / (taken + missed)) : 100,
+    streak,
+  };
+}
+
+describe("aggregateCompliance", () => {
+  it("weights by expected doses rather than averaging the rates", () => {
+    // A three-times-daily tablet at 60/90 and a weekly injection at 4/4.
+    // The mean of the rates would read 83 %; the doses say 64/94 = 68 %.
+    const out = aggregateCompliance([result(60, 30), result(4, 0)]);
+    expect(out).toMatchObject({
+      totalExpected: 94,
+      taken: 64,
+      missed: 30,
+      rate: 68,
+    });
+  });
+
+  it("keeps skipped doses out of the rate, as a single medication's tally does", () => {
+    expect(aggregateCompliance([result(9, 1, 5)])?.rate).toBe(90);
+    expect(aggregateCompliance([result(9, 1, 5)])?.totalExpected).toBe(15);
+  });
+
+  it("takes the shortest streak, because a day counts only when every medication was taken", () => {
+    expect(
+      aggregateCompliance([result(5, 0, 0, 12), result(5, 0, 0, 3)])?.streak,
+    ).toBe(3);
+  });
+
+  it("is null when nothing contributes", () => {
+    expect(aggregateCompliance([])).toBeNull();
+  });
+});
diff --git a/src/lib/medications/__tests__/route-guards.test.ts b/src/lib/medications/__tests__/route-guards.test.ts
index e75d004f9..fcbebbfce 100644
--- a/src/lib/medications/__tests__/route-guards.test.ts
+++ b/src/lib/medications/__tests__/route-guards.test.ts
@@ -1,6 +1,9 @@
 import { describe, expect, it, vi } from "vitest";
 
-import { assertMedicationOwnership } from "../route-guards";
+import {
+  assertMedicationOwnership,
+  assertMedicationTakesIntake,
+} from "../route-guards";
 
 function buildClient(med: { id: string; userId: string } | null) {
   return {
@@ -72,3 +75,34 @@ describe("assertMedicationOwnership", () => {
     expect(call.select).toEqual({ id: true, userId: true });
   });
 });
+
+describe("assertMedicationTakesIntake", () => {
+  function client(
+    med: { id: string; userId: string; trackIntake: boolean } | null,
+  ) {
+    return { medication: { findUnique: vi.fn().mockResolvedValue(med) } };
+  }
+
+  it("admits a tracked medication the caller holds", async () => {
+    const c = client({ id: "med-1", userId: "user-1", trackIntake: true });
+    expect(await assertMedicationTakesIntake("med-1", "user-1", c)).toBeNull();
+    expect(c.medication.findUnique).toHaveBeenCalledWith({
+      where: { id: "med-1" },
+      select: { id: true, userId: true, trackIntake: true },
+    });
+  });
+
+  it("refuses a record-only medication by name", async () => {
+    const c = client({ id: "med-1", userId: "user-1", trackIntake: false });
+    const result = await assertMedicationTakesIntake("med-1", "user-1", c);
+    expect(result?.status).toBe(422);
+    const body = await result!.json();
+    expect(body.meta.errorCode).toBe("medication.intake.notTracked");
+  });
+
+  it("answers 404, not 422, for a record-only medication of another account", async () => {
+    const c = client({ id: "med-1", userId: "owner", trackIntake: false });
+    const result = await assertMedicationTakesIntake("med-1", "intruder", c);
+    expect(result?.status).toBe(404);
+  });
+});
diff --git a/src/lib/medications/compliance-payload.ts b/src/lib/medications/compliance-payload.ts
index 3f552c714..2b1a1de10 100644
--- a/src/lib/medications/compliance-payload.ts
+++ b/src/lib/medications/compliance-payload.ts
@@ -15,7 +15,9 @@ import {
   buildMedicationComplianceBundle,
   expectsDoses,
   lastNonSkippedTakenAt,
+  COMPLIANCE_REPORT_DAYS,
   type ComplianceDisplay,
+  type ComplianceReportDays,
   type ComplianceResult,
   type DailyComplianceEntry,
 } from "@/lib/analytics/compliance";
@@ -47,8 +49,17 @@ export interface CompliancePayload {
   compliance30: ComplianceResult;
   dailyCompliance: Record<string, DailyComplianceEntry>;
   complianceDisplay: ComplianceDisplay | null;
+  /**
+   * The report windows the batched read serves on `?days=N`. Cached with the
+   * rest of the cell so a report read costs no second ledger pass; NOT on the
+   * per-medication wire, which keeps its published shape.
+   */
+  reportWindows: Record<ComplianceReportDays, ComplianceResult>;
 }
 
+/** The cached payload minus the fields only the batched read serves. */
+export type CompliancePayloadWire = Omit<CompliancePayload, "reportWindows">;
+
 /**
  * Legacy-compatible placeholder for a medication whose adherence percentage
  * is explicitly not applicable.
@@ -68,6 +79,13 @@ const NOT_APPLICABLE_LEGACY_COMPLIANCE: ComplianceResult = {
   streak: 0,
 };
 
+const NOT_APPLICABLE_REPORT_WINDOWS = Object.fromEntries(
+  COMPLIANCE_REPORT_DAYS.map((days) => [
+    days,
+    NOT_APPLICABLE_LEGACY_COMPLIANCE,
+  ]),
+) as Record<ComplianceReportDays, ComplianceResult>;
+
 /** The medication slice the payload builder consumes. */
 export interface ComplianceMedicationInput {
   id: string;
@@ -194,6 +212,7 @@ export async function buildCompliancePayload(
       compliance30: NOT_APPLICABLE_LEGACY_COMPLIANCE,
       dailyCompliance: {},
       complianceDisplay: null,
+      reportWindows: NOT_APPLICABLE_REPORT_WINDOWS,
     };
   }
 
@@ -207,6 +226,7 @@ export async function buildCompliancePayload(
       compliance30: NOT_APPLICABLE_LEGACY_COMPLIANCE,
       dailyCompliance: {},
       complianceDisplay: null,
+      reportWindows: NOT_APPLICABLE_REPORT_WINDOWS,
     };
   }
 
@@ -314,5 +334,49 @@ export async function buildCompliancePayload(
     compliance30: bundle.compliance30,
     dailyCompliance,
     complianceDisplay: bundle.complianceDisplay,
+    reportWindows: bundle.reportWindows,
+  };
+}
+
+/**
+ * One adherence figure for the whole account, in the per-medication
+ * `ComplianceResult` shape, weighted by expected doses: the counts are summed
+ * across every applicable medication and the rate is recomputed from the sums
+ * with the same rule a single medication's tally uses
+ * (`round(100 · taken / (taken + missed))`, capped at 100, 100 when nothing
+ * was expected). Averaging the per-medication rates instead would let a
+ * weekly injection weigh as much as a three-times-daily tablet.
+ *
+ * `streak` is the shortest per-medication streak: a day only extends the
+ * account's streak when every medication's doses were taken that day.
+ *
+ * `null` when no medication contributes, so a client shows nothing rather
+ * than a vacuous 100 %.
+ */
+export function aggregateCompliance(
+  results: readonly ComplianceResult[],
+): ComplianceResult | null {
+  if (results.length === 0) return null;
+  let taken = 0;
+  let skipped = 0;
+  let missed = 0;
+  let streak = Number.POSITIVE_INFINITY;
+  for (const r of results) {
+    taken += r.taken;
+    skipped += r.skipped;
+    missed += r.missed;
+    streak = Math.min(streak, r.streak);
+  }
+  const denominator = taken + missed;
+  return {
+    totalExpected: taken + skipped + missed,
+    taken,
+    skipped,
+    missed,
+    rate:
+      denominator > 0
+        ? Math.min(100, Math.round((taken / denominator) * 100))
+        : 100,
+    streak,
   };
 }
diff --git a/src/lib/medications/intake-tracking.ts b/src/lib/medications/intake-tracking.ts
index 448379d8a..ec2a927e6 100644
--- a/src/lib/medications/intake-tracking.ts
+++ b/src/lib/medications/intake-tracking.ts
@@ -66,3 +66,15 @@ export function scheduleWireFields<T>(
     ? { schedules: [], recordedSchedules: schedules }
     : { schedules };
 }
+
+/**
+ * Error code for a dose written against a record-only medication. Every route
+ * that records a dose answers it the same way (iOS #116, item 15): the history
+ * the medication already has stays, but nothing new is counted, so a new
+ * write is refused by name rather than stored and then counted nowhere.
+ * The bulk route reports the same decision per entry as `intake_not_tracked`.
+ */
+export const INTAKE_NOT_TRACKED_ERROR_CODE = "medication.intake.notTracked";
+
+/** Per-entry skip reason for the bulk route, the batch form of the code. */
+export const INTAKE_NOT_TRACKED_REASON = "intake_not_tracked";
diff --git a/src/lib/medications/route-guards.ts b/src/lib/medications/route-guards.ts
index 6147062fd..01425ce66 100644
--- a/src/lib/medications/route-guards.ts
+++ b/src/lib/medications/route-guards.ts
@@ -22,6 +22,7 @@
  */
 
 import { apiError } from "@/lib/api-response";
+import { INTAKE_NOT_TRACKED_ERROR_CODE } from "@/lib/medications/intake-tracking";
 
 interface MedicationOwnershipPrisma {
   medication: {
@@ -53,6 +54,51 @@ export async function assertMedicationOwnership(
   return null;
 }
 
+/** The 422 a dose write against a record-only medication answers with. */
+export function refuseUntrackedIntake(): Response {
+  return apiError(
+    "This medication is kept as a record; its intake is not tracked",
+    422,
+    { errorCode: INTAKE_NOT_TRACKED_ERROR_CODE },
+  );
+}
+
+interface MedicationIntakeGuardPrisma {
+  medication: {
+    findUnique: (args: {
+      where: { id: string };
+      select: { id: true; userId: true; trackIntake: true };
+    }) => Promise<{ id: string; userId: string; trackIntake: boolean } | null>;
+  };
+}
+
+/**
+ * The ownership guard for a route that RECORDS a dose against the
+ * medication: the same 404 as {@link assertMedicationOwnership}, and then a
+ * 422 `medication.intake.notTracked` when the medication is kept as a record
+ * only (`trackIntake: false`). One read answers both, so the refusal cannot
+ * be reached for a medication the caller does not hold — an unknown id and a
+ * foreign one still look identical.
+ */
+export async function assertMedicationTakesIntake(
+  medicationId: string,
+  userId: string,
+  prismaClient?: MedicationIntakeGuardPrisma,
+): Promise<Response | null> {
+  const client =
+    prismaClient ??
+    ((await loadPrisma()) as unknown as MedicationIntakeGuardPrisma);
+  const med = await client.medication.findUnique({
+    where: { id: medicationId },
+    select: { id: true, userId: true, trackIntake: true },
+  });
+  if (!med || med.userId !== userId) {
+    return apiError("Medication not found", 404);
+  }
+  if (med.trackIntake === false) return refuseUntrackedIntake();
+  return null;
+}
+
 async function loadPrisma(): Promise<MedicationOwnershipPrisma> {
   // Lazy import so test files that stub `@/lib/db` at the module level
   // see their stub instead of the real Prisma client. Matches the
diff --git a/src/lib/notifications/__tests__/client-managed-apns.test.ts b/src/lib/notifications/__tests__/client-managed-apns.test.ts
index 75a7a7b8c..47984be11 100644
--- a/src/lib/notifications/__tests__/client-managed-apns.test.ts
+++ b/src/lib/notifications/__tests__/client-managed-apns.test.ts
@@ -146,6 +146,43 @@ describe("dispatchNotification — client-managed APNs suppression", () => {
     });
   });
 
+  it("keeps a follow-up for a dose still open on APNs, because the phone sends none", async () => {
+    vi.mocked(prisma.user.findUnique).mockResolvedValue({
+      notificationPrefs: { medication: { clientManaged: true } },
+    } as never);
+
+    await dispatchNotification({
+      ...MEDICATION_PAYLOAD,
+      metadata: {
+        ...MEDICATION_PAYLOAD.metadata,
+        phase: "ORANGE",
+        followUp: true,
+      },
+    });
+
+    expect(sendViaApnsMock).toHaveBeenCalledTimes(1);
+    expect(sendViaTelegramMock).toHaveBeenCalledTimes(1);
+    expect(recordPushAttemptMock).not.toHaveBeenCalled();
+  });
+
+  it("still keeps the reminder that announces the dose off APNs", async () => {
+    vi.mocked(prisma.user.findUnique).mockResolvedValue({
+      notificationPrefs: { medication: { clientManaged: true } },
+    } as never);
+
+    await dispatchNotification({
+      ...MEDICATION_PAYLOAD,
+      metadata: {
+        ...MEDICATION_PAYLOAD.metadata,
+        phase: "YELLOW",
+        followUp: false,
+      },
+    });
+
+    expect(sendViaApnsMock).not.toHaveBeenCalled();
+    expect(sendViaTelegramMock).toHaveBeenCalledTimes(1);
+  });
+
   it("honours the roaming deliveryDefault mapping", async () => {
     vi.mocked(prisma.user.findUnique).mockResolvedValue({
       notificationPrefs: { medication: { deliveryDefault: "client" } },
diff --git a/src/lib/notifications/client-managed-apns.ts b/src/lib/notifications/client-managed-apns.ts
index b63cc38d0..99ec47ed2 100644
--- a/src/lib/notifications/client-managed-apns.ts
+++ b/src/lib/notifications/client-managed-apns.ts
@@ -37,6 +37,12 @@ interface ClientManagedGate {
     userId: string,
     metadata: Record<string, unknown> | undefined,
   ) => Record<string, unknown>;
+  /**
+   * Which dispatches of the event the flag covers. Absent: all of them. The
+   * flag says the phone delivers this reminder itself, so it covers exactly
+   * what the phone replaces and nothing the phone does not send.
+   */
+  covers?: (metadata: Record<string, unknown> | undefined) => boolean;
 }
 
 function str(value: unknown): string {
@@ -62,6 +68,13 @@ export const CLIENT_MANAGED_APNS_EVENTS: Record<string, ClientManagedGate> = {
       phase: str(metadata?.phase),
       dose_at: str(metadata?.scheduledAt),
     }),
+    // The iOS client reminds once, at dose time, and sends no follow-ups of
+    // its own (iOS #116, item 21). So the flag keeps only the reminder that
+    // announces the dose off APNs; the escalations for a dose that is still
+    // open (`followUp: true`, set by the reminder cron) are pushed as usual.
+    // A dispatch that does not say is treated as the announcement, the
+    // behaviour every reminder had before the cron started saying.
+    covers: (metadata) => metadata?.followUp !== true,
   },
   MEASUREMENT_REMINDER: {
     isClientManaged: isMeasurementReminderClientManaged,
@@ -71,9 +84,15 @@ export const CLIENT_MANAGED_APNS_EVENTS: Record<string, ClientManagedGate> = {
 };
 
 /**
- * Does this event type have a client-managed opt-out at all? Cheap check
- * the dispatcher runs before paying for the preferences read.
+ * Does a client-managed opt-out apply to this dispatch at all? Cheap check
+ * the dispatcher runs before paying for the preferences read: the event type
+ * has to have the opt-out, and the opt-out has to cover this dispatch.
  */
-export function hasClientManagedApnsGate(eventType: string): boolean {
-  return eventType in CLIENT_MANAGED_APNS_EVENTS;
+export function hasClientManagedApnsGate(
+  eventType: string,
+  metadata?: Record<string, unknown>,
+): boolean {
+  const gate = CLIENT_MANAGED_APNS_EVENTS[eventType];
+  if (!gate) return false;
+  return gate.covers ? gate.covers(metadata) : true;
 }
diff --git a/src/lib/notifications/dispatcher.ts b/src/lib/notifications/dispatcher.ts
index 2d8f9d793..e8ccc3f25 100644
--- a/src/lib/notifications/dispatcher.ts
+++ b/src/lib/notifications/dispatcher.ts
@@ -326,7 +326,10 @@ export async function dispatchNotification(
       if (
         channel.type === "APNS" &&
         !delivery.managed &&
-        hasClientManagedApnsGate(recipientPayload.eventType) &&
+        hasClientManagedApnsGate(
+          recipientPayload.eventType,
+          recipientPayload.metadata,
+        ) &&
         (await resolveClientManagedApns())
       ) {
         const gate = CLIENT_MANAGED_APNS_EVENTS[recipientPayload.eventType];
diff --git a/src/lib/openapi/error-codes.ts b/src/lib/openapi/error-codes.ts
index 30c23e921..179ae6c80 100644
--- a/src/lib/openapi/error-codes.ts
+++ b/src/lib/openapi/error-codes.ts
@@ -248,7 +248,10 @@ export const ERROR_CODE_CATALOGUE: Readonly<Record<string, readonly string[]>> =
       "measurement.restore.invalid",
       "measurement.update.server_owned_source",
     ],
-    medication: ["medication.intake.import.invalid_format"],
+    medication: [
+      "medication.intake.import.invalid_format",
+      "medication.intake.notTracked",
+    ],
     medications: [
       "medications.category.invalid",
       "medications.category.limitReached",
@@ -306,6 +309,12 @@ export const ERROR_CODE_CATALOGUE: Readonly<Record<string, readonly string[]>> =
       "onboarding.restart.rateLimited",
       "onboarding.tour.invalid",
     ],
+    passkey: [
+      "passkey.challenge.expired",
+      "passkey.response.invalid",
+      "passkey.unknown",
+      "passkey.verification.failed",
+    ],
     personal_records: ["personal_records.invalid_query"],
     practitioner: ["practitioner.invalid"],
     profile: [
diff --git a/src/lib/openapi/routes/account-sharing.ts b/src/lib/openapi/routes/account-sharing.ts
index fe8f6c784..5f0ecb677 100644
--- a/src/lib/openapi/routes/account-sharing.ts
+++ b/src/lib/openapi/routes/account-sharing.ts
@@ -501,6 +501,30 @@ const accountPayload = z
   .looseObject({
     id: z.string(),
     username: z.string(),
+    // Enumerated because clients cut days and convert glucose by them: the
+    // day key and the unit must be the server's, not the device's.
+    timezone: z
+      .string()
+      .describe(
+        "The IANA zone the server cuts this account's days in: the stored zone, or the instance default when the stored one is unusable. Resolved, never the raw column, so bucket day keys by this value.",
+      ),
+    glucoseUnit: z
+      .enum(["mg/dL", "mmol/L"])
+      .nullable()
+      .describe(
+        "The account's chosen glucose display unit, as stored. `null` means the person never chose one (or the stored value is neither unit), and the server then shows glucose in mg/dL.",
+      ),
+    features: z
+      .object({
+        trackIntake: z
+          .literal(true)
+          .describe(
+            "Medications take `trackIntake`: a medication can be kept as a record whose doses are never due, and a dose written against one is refused with `medication.intake.notTracked`.",
+          ),
+      })
+      .describe(
+        "What this server understands, for a client released apart from it. Constant across accounts; a flag appears once the server supports the feature and stays `true`. Absent on servers older than v1.42.0. A client that meets a flag it does not know ignores it.",
+      ),
     accountAccess: accountAccessBlock,
     moduleAccess: moduleAccessMap,
     // v1.39 — enumerated because every AI surface decides on it: a client
diff --git a/src/lib/openapi/routes/auth.ts b/src/lib/openapi/routes/auth.ts
index d38f507b0..22bb8c852 100644
--- a/src/lib/openapi/routes/auth.ts
+++ b/src/lib/openapi/routes/auth.ts
@@ -47,6 +47,7 @@ import {
   errorEnvelope,
   loginPasswordSchema,
   notImplementedResponse,
+  validationIssue,
 } from "./shared";
 import { passkeyLoginOptionsSchema } from "@/lib/validations/auth";
 
@@ -633,13 +634,7 @@ const authProfileUpdateResponse = z
         "Whether an insurance number is stored. The number itself is encrypted at rest and is never returned — only its presence.",
       ),
     rejectedFields: z
-      .array(
-        z.object({
-          path: z.string(),
-          code: z.string(),
-          message: z.string(),
-        }),
-      )
+      .array(validationIssue)
       .optional()
       .describe(
         "Present only on a PARTIAL success: the fields that were skipped while the rest of the patch was written. A 200 carrying this key means the save was incomplete — surface it, do not treat the response as a clean save. `code` is the validator code for a field that failed validation, or `rate_limited` for an email-address change that has spent the account's hourly budget; that one is not a bad value and the same address will be accepted once the window rolls over.",
@@ -1446,10 +1441,20 @@ export const authPaths: NonNullable<ZodOpenApiObject["paths"]> = {
         },
         "404": {
           description:
-            "The assertion resolved to a user row that no longer exists.",
+            "`meta.errorCode` = `passkey.unknown` (v1.42.0): no passkey with this credential id is registered on this server — it was removed here, or belongs to another server. Tell the person to sign in another way. Without a code: the assertion resolved to a user row that no longer exists.",
           content: { "application/json": { schema: errorEnvelope } },
         },
         ...stdResponses,
+        "401": {
+          description:
+            "The sign-in did not prove anything (v1.42.0 codes; before, the first case answered 500). `meta.errorCode` = `passkey.challenge.expired` when the challenge is gone — it expired after five minutes, was already used, or was begun for a different account — so start a new sign-in; `passkey.verification.failed` when the assertion was checked and refused (signature, origin, relying-party id or challenge mismatch).",
+          content: { "application/json": { schema: errorEnvelope } },
+        },
+        "422": {
+          description:
+            "`challengeId` or `credential` is missing, or (`meta.errorCode` = `passkey.response.invalid`, v1.42.0) `credential` is not a WebAuthn authentication response.",
+          content: { "application/json": { schema: errorEnvelope } },
+        },
       },
     },
   },
diff --git a/src/lib/openapi/routes/ingest.ts b/src/lib/openapi/routes/ingest.ts
index 216619427..93705b487 100644
--- a/src/lib/openapi/routes/ingest.ts
+++ b/src/lib/openapi/routes/ingest.ts
@@ -87,7 +87,7 @@ export const ingestPaths: NonNullable<ZodOpenApiObject["paths"]> = {
         },
         "422": {
           description:
-            "Validation failed, with every issue listed rather than the first — an integration operator should see the whole shape at once. An empty or unstable `idempotencyKey` fails here: the column is unique table-wide, so an empty key would resolve to whichever unrelated row stored it first.",
+            "Validation failed, with every issue listed rather than the first — an integration operator should see the whole shape at once. An empty or unstable `idempotencyKey` fails here: the column is unique table-wide, so an empty key would resolve to whichever unrelated row stored it first. Also 422 with `meta.errorCode` = `medication.intake.notTracked` (v1.42.0) when the named medication is kept as a record only (`trackIntake: false`); checked after the token's scope, so a token without this medication's scope learns nothing about it.",
           content: { "application/json": { schema: errorEnvelope } },
         },
         "429": {
diff --git a/src/lib/openapi/routes/measurements.ts b/src/lib/openapi/routes/measurements.ts
index b063609c8..bc54361ad 100644
--- a/src/lib/openapi/routes/measurements.ts
+++ b/src/lib/openapi/routes/measurements.ts
@@ -1079,7 +1079,7 @@ export const measurementPaths: NonNullable<ZodOpenApiObject["paths"]> = {
         ...stdResponses,
         "422": {
           description:
-            "The batch exceeded the 500-entry limit (`measurement.batch.too_large`), failed validation (`measurement.batch.invalid`, with every issue under `details.issues`), or (`measurement.batch.source_not_permitted`) carried an entry naming a source, any source, under a narrow `measurements:write` credential. Nothing was written in any of the three cases, and all three are permanent for the batch as sent: resending it unchanged is refused the same way.",
+            'The batch exceeded the 500-entry limit (`measurement.batch.too_large`), failed validation (`measurement.batch.invalid`, with every issue under `details.issues`), or (`measurement.batch.source_not_permitted`) carried an entry naming a source, any source, under a narrow `measurements:write` credential. Nothing was written in any of the three cases, and all three are permanent for the batch as sent: resending it unchanged is refused the same way. Which issues belong to an entry: every issue caused by one entry has a `path` that starts `entries.<n>` (the entry\'s index in the request, then the field, e.g. `entries.3.startDate`, or just `entries.4` when the entry is not an object). Those are the only per-entry issues, so a client may drop the named entries and resend the rest. An issue whose `path` is `""` (the body is not an object), `entries` (missing, not an array, or empty) or `syncTrigger` is about the batch itself, and no split recovers it.',
           content: { "application/json": { schema: errorEnvelope } },
         },
       },
diff --git a/src/lib/openapi/routes/medications/paths.ts b/src/lib/openapi/routes/medications/paths.ts
index 5eaeb8528..59c23b3cb 100644
--- a/src/lib/openapi/routes/medications/paths.ts
+++ b/src/lib/openapi/routes/medications/paths.ts
@@ -88,6 +88,7 @@ import {
   medicationCadenceResponse,
   medicationComplianceResponse,
   medicationComplianceSummaryEntry,
+  medicationComplianceAggregate,
   scheduleRevisionResource,
   scheduleRevisionListResponse,
   medicationExtractRequest,
@@ -212,7 +213,12 @@ const bulkIntakeEntryResult = z
       .describe(
         "`inserted`/`updated`/`duplicate` — the row landed (advance the cursor). `skipped` — not stored; see `reason`.",
       ),
-    reason: z.string().optional(),
+    reason: z
+      .string()
+      .optional()
+      .describe(
+        "Why a `skipped` entry was not stored. Among others: `medication_not_found`, `unstable_external_id`, `force_slot_invalid`, `force_slot_occupied`, `injection_site_not_allowed`, and (v1.42.0) `intake_not_tracked` for an entry against a medication kept as a record only (`trackIntake: false`), the per-entry form of `medication.intake.notTracked`. A skip is final: resending the entry gives the same answer.",
+      ),
     id: z.string().optional().describe("The landed row id (absent on skips)."),
   })
   .meta({ id: "BulkMedicationIntakeEntryResult" });
@@ -312,7 +318,7 @@ export const medicationPaths: NonNullable<ZodOpenApiObject["paths"]> = {
         },
         "422": {
           description:
-            "Body validation failed (multi-issue envelope, breadcrumbed as `medications.intake.update.validation-failed`), or `meta.errorCode` = `medications.intake.injection_site.disallowed` when the site is outside the medication's effective allowed set, or `medications.intake.force_slot.invalid` when `forceSlotInstant` is not a real slot of the medication. The latter two carry no issue list — branch on the code.",
+            "Body validation failed (multi-issue envelope, breadcrumbed as `medications.intake.update.validation-failed`), or `meta.errorCode` = `medications.intake.injection_site.disallowed` when the site is outside the medication's effective allowed set, or `medications.intake.force_slot.invalid` when `forceSlotInstant` is not a real slot of the medication, or (v1.42.0) `medication.intake.notTracked` when the event is still open and its medication is kept as a record only (`trackIntake: false`): resolving or snoozing it would record a new dose that is counted nowhere. Correcting an event that is already taken or skipped stays open. The coded refusals carry no issue list — branch on the code.",
           content: { "application/json": { schema: errorEnvelope } },
         },
         "401": stdResponses["401"],
@@ -1437,6 +1443,11 @@ export const medicationPaths: NonNullable<ZodOpenApiObject["paths"]> = {
         },
         ...stdResponses,
         ...recordWriteRateLimitResponse,
+        "422": {
+          description:
+            "Body validation failed (multi-issue envelope), or `meta.errorCode` names the refusal: `medications.intake.injection_site.disallowed`, `medications.intake.force_slot.invalid`, or (v1.42.0) `medication.intake.notTracked` when the medication is kept as a record only (`trackIntake: false`). Its stored history stays; a new dose is refused rather than stored and counted nowhere. The check runs after ownership, so a foreign medication is still a 404.",
+          content: { "application/json": { schema: errorEnvelope } },
+        },
       },
     },
     get: {
@@ -1699,17 +1710,49 @@ export const medicationPaths: NonNullable<ZodOpenApiObject["paths"]> = {
       tags: ["Medications"],
       summary: "Batched adherence read for every medication of the caller",
       description:
-        "Returns one compact row per non-PRN medication. A scheduled medication with no local schedule remains in the array with applicable=false and reason NO_LOCAL_SCHEDULE. compliance7/compliance30 stay non-null as all-zero compatibility placeholders for released clients; aware clients must ignore those percentages when applicable=false. complianceDisplay is null.",
+        "Returns one compact row per non-PRN medication. A scheduled medication with no local schedule remains in the array with applicable=false and reason NO_LOCAL_SCHEDULE. compliance7/compliance30 stay non-null as all-zero compatibility placeholders for released clients; aware clients must ignore those percentages when applicable=false. complianceDisplay is null.\n\n" +
+        "v1.42.0, additive: `meta.aggregate` carries one figure for the whole account (`MedicationComplianceAggregate`, weighted by expected doses across the applicable medications; `null` when none applies), so a client never averages the rows itself. `days` (30, 60, 90, 180 or 365) adds a `complianceN` block in the same shape to every row and to the aggregate, for a report that covers its own window; `meta.days` echoes it. Any other `days` is a 422 rather than a rounded window.",
+      requestParams: {
+        query: z.object({
+          days: z
+            .enum(["30", "60", "90", "180", "365"])
+            .optional()
+            .describe(
+              "Report window in days. 30 is already `compliance30`; the others add `compliance60` / `compliance90` / `compliance180` / `compliance365`.",
+            ),
+        }),
+      },
       responses: {
         ...recordRefusal(),
         "200": {
-          description: "One adherence row per medication.",
+          description:
+            "One adherence row per medication, and the account aggregate in `meta`.",
           content: {
             "application/json": {
-              schema: dataEnvelope(
-                z.array(medicationComplianceSummaryEntry),
-                "ListMedicationComplianceResponse",
-              ),
+              schema: z
+                .object({
+                  data: z.array(medicationComplianceSummaryEntry),
+                  error: z.null(),
+                  meta: z
+                    .object({
+                      aggregate: medicationComplianceAggregate.nullable(),
+                      days: z
+                        .union([
+                          z.literal(30),
+                          z.literal(60),
+                          z.literal(90),
+                          z.literal(180),
+                          z.literal(365),
+                        ])
+                        .optional()
+                        .describe("The `days` the request asked for."),
+                      requestId: z.string().optional(),
+                    })
+                    .describe(
+                      "Absent on servers older than v1.42.0; a client that reads it treats absence as no aggregate.",
+                    ),
+                })
+                .meta({ id: "ListMedicationComplianceResponse" }),
             },
           },
         },
diff --git a/src/lib/openapi/routes/medications/schemas.ts b/src/lib/openapi/routes/medications/schemas.ts
index 4c54d773f..83d8de485 100644
--- a/src/lib/openapi/routes/medications/schemas.ts
+++ b/src/lib/openapi/routes/medications/schemas.ts
@@ -936,6 +936,18 @@ export const medicationComplianceSummaryEntry = z
     compliance30: complianceResult.describe(
       "Thirty-day adherence summary, or an all-zero compatibility placeholder when applicable is false.",
     ),
+    compliance60: complianceResult
+      .optional()
+      .describe("Present only on `?days=60`: the trailing 60 days."),
+    compliance90: complianceResult
+      .optional()
+      .describe("Present only on `?days=90`: the trailing 90 days."),
+    compliance180: complianceResult
+      .optional()
+      .describe("Present only on `?days=180`: the trailing 180 days."),
+    compliance365: complianceResult
+      .optional()
+      .describe("Present only on `?days=365`: the trailing 365 days."),
     complianceDisplay: complianceDisplay.nullable(),
   })
   .meta({
@@ -1732,3 +1744,27 @@ export const medicationSideEffect = z
     description:
       "One logged side effect. Not a clinical record — the account owns it, and it stays deletable at any time rather than locking after a retraction window.",
   });
+
+/**
+ * v1.42.0 — the account-wide adherence figure the batched read carries in
+ * `meta.aggregate`, beside the per-medication rows.
+ */
+export const medicationComplianceAggregate = z
+  .object({
+    compliance7: complianceResult,
+    compliance30: complianceResult,
+    compliance60: complianceResult.nullable().optional(),
+    compliance90: complianceResult.nullable().optional(),
+    compliance180: complianceResult.nullable().optional(),
+    compliance365: complianceResult.nullable().optional(),
+    medicationCount: z
+      .number()
+      .int()
+      .positive()
+      .describe("How many applicable medications the figure is built from."),
+  })
+  .meta({
+    id: "MedicationComplianceAggregate",
+    description:
+      "One adherence figure for the whole account in the `ComplianceResult` shape, weighted by expected doses: `taken`, `skipped` and `missed` are summed across every medication with `applicable: true`, and `rate` is recomputed from the sums by the per-medication rule (round(100 · taken / (taken + missed)), capped at 100, 100 when nothing was expected). Averaging the per-medication rates would let a weekly injection weigh as much as a three-times-daily tablet. `streak` is the shortest per-medication streak. The `complianceN` block for a requested `days` is present when `days` was sent and is not 30.",
+  });
diff --git a/src/lib/openapi/routes/mood.ts b/src/lib/openapi/routes/mood.ts
index 64f88bbde..87410935d 100644
--- a/src/lib/openapi/routes/mood.ts
+++ b/src/lib/openapi/routes/mood.ts
@@ -955,7 +955,14 @@ const moodAggregatesResponse = z
         days: z.number().int(),
       })
       .nullable()
-      .describe("Null for a sparse logger below the day floor."),
+      .describe(
+        "Day-to-day steadiness over the trailing `stabilityWindowDays` days. Null below the day floor (seven days with an entry) inside that window, so a short window can be null where the year is not.",
+      ),
+    stabilityWindowDays: z
+      .union([z.literal(30), z.literal(90), z.literal(180), z.literal(365)])
+      .describe(
+        "The window `stability` covers: the `days` query parameter, or 365 (the whole daily series) when it was not sent. Added in v1.42.0; absent from older servers, whose score always covers the year.",
+      ),
     tags: z
       .array(
         z.object({
@@ -1277,7 +1284,17 @@ export const moodPaths: NonNullable<ZodOpenApiObject["paths"]> = {
       tags: ["Mood"],
       summary: "Pre-computed mood aggregates (v1.8.5)",
       description:
-        "The whole Mood Insights page in one read. The compute runs server-side and only pre-shaped blocks leave — no raw mood row is on this wire, and no LLM is reachable from this path. Stale-while-revalidate: past the fresh window the prior aggregate is served immediately while one background recompute warms a new one, so an active logger never re-pays the cold compute. Module-gated on `mood`; a disabled module answers 403 `module.disabled` even for a valid Bearer token. Cookie or Bearer auth; the caller is always resolved as themselves, so this read cannot be delegated to a shared record — which makes it the one mood surface a delegate cannot reach.",
+        "The whole Mood Insights page in one read. The compute runs server-side and only pre-shaped blocks leave — no raw mood row is on this wire, and no LLM is reachable from this path. Stale-while-revalidate: past the fresh window the prior aggregate is served immediately while one background recompute warms a new one, so an active logger never re-pays the cold compute. Module-gated on `mood`; a disabled module answers 403 `module.disabled` even for a valid Bearer token. Cookie or Bearer auth; the caller is always resolved as themselves, so this read cannot be delegated to a shared record — which makes it the one mood surface a delegate cannot reach. v1.42.0 — `days` cuts `stability` to the period a client shows; every other block is unchanged by it.",
+      requestParams: {
+        query: z.object({
+          days: z
+            .enum(["30", "90", "180", "365"])
+            .optional()
+            .describe(
+              "Trailing window for `stability`, in days. Omitted: 365. Any other value is a 422.",
+            ),
+        }),
+      },
       responses: {
         "200": {
           description: "The aggregate bundle.",
diff --git a/src/lib/openapi/routes/profile.ts b/src/lib/openapi/routes/profile.ts
index 261cd63a5..f0eff0b6e 100644
--- a/src/lib/openapi/routes/profile.ts
+++ b/src/lib/openapi/routes/profile.ts
@@ -56,6 +56,7 @@ import {
   recordRefusal,
   stdResponses,
   updatedAtTokenField,
+  validationIssue,
 } from "./shared";
 
 // v1.18.0 — module enable/disable. The PATCH request is the REAL runtime
@@ -259,7 +260,7 @@ const notificationPrefsResolved = z
       clientManaged: z
         .boolean()
         .describe(
-          "True when the iOS app owns local medication reminders; the server-side MEDICATION_REMINDER APNs cron is suppressed.",
+          "True when the iOS app delivers medication reminders locally. The server then keeps the reminder that announces a dose off APNs (the phone shows its own at dose time) and still pushes the follow-ups for a dose that stays open, which the phone does not send (v1.42.0; before, every MEDICATION_REMINDER push was suppressed). Other channels are never affected.",
         ),
       deliveryDefault: z
         .enum(["server", "client"])
@@ -587,13 +588,7 @@ const profileUpdateResponse = z
       .boolean()
       .describe("Whether a KVNR is on file (the value itself is not echoed)."),
     rejectedFields: z
-      .array(
-        z.object({
-          path: z.string(),
-          code: z.string(),
-          message: z.string(),
-        }),
-      )
+      .array(validationIssue)
       .optional()
       .describe(
         "Present only on a PARTIAL success: the fields that were skipped while the rest of the patch was written. A 200 carrying this key means the save was incomplete — surface it, do not treat the response as a clean save. `code` is the validator code for a field that failed validation, or `rate_limited` for an email-address change that has spent the account's hourly budget; that one is not a bad value and the same address will be accepted once the window rolls over. The handler has always been able to answer with this key on this path; it was published only on PUT /api/auth/profile.",
@@ -1638,7 +1633,7 @@ export const profilePaths: NonNullable<ZodOpenApiObject["paths"]> = {
       tags: ["Notifications"],
       summary: "Update per-user notification preferences",
       description:
-        'Deep-merges the supplied partial shape over the persisted row — a PATCH touching only one category leaves the siblings intact. Always returns the fully-resolved next state so clients can hard-set their optimistic update. `medication.clientManaged: true` (or `deliveryDefault: "client"`) suppresses server-side MEDICATION_REMINDER APNs; `medication.lowStockRunwayDays` (1–60, nullable, default 7) tunes the low-stock alert — null switches it off. Rate-limit 60/min per user.',
+        'Deep-merges the supplied partial shape over the persisted row — a PATCH touching only one category leaves the siblings intact. Always returns the fully-resolved next state so clients can hard-set their optimistic update. `medication.clientManaged: true` (or `deliveryDefault: "client"`) keeps the MEDICATION_REMINDER that announces a dose off APNs and leaves the follow-ups for a dose still open on it (v1.42.0); `medication.lowStockRunwayDays` (1–60, nullable, default 7) tunes the low-stock alert — null switches it off. Rate-limit 60/min per user.',
       requestBody: {
         required: true,
         content: {
diff --git a/src/lib/openapi/routes/shared.ts b/src/lib/openapi/routes/shared.ts
index bfde7afe5..1b4599b4d 100644
--- a/src/lib/openapi/routes/shared.ts
+++ b/src/lib/openapi/routes/shared.ts
@@ -32,7 +32,7 @@ import { createBatchWorkoutSchema as createBatchWorkoutSchemaBase } from "@/lib/
  * built for could not read it from the contract. `params` never ships: some
  * Zod codes embed the offending value in it and that is user content.
  */
-const validationIssue = z
+export const validationIssue = z
   .object({
     path: z
       .string()
diff --git a/tests/integration/timezone-per-user.test.ts b/tests/integration/timezone-per-user.test.ts
index c064e7f9c..8a191e52a 100644
--- a/tests/integration/timezone-per-user.test.ts
+++ b/tests/integration/timezone-per-user.test.ts
@@ -197,6 +197,32 @@ describe("per-user timezone — Pacific/Auckland end-to-end", () => {
     }
   });
 
+  // The fields a native client decides on, enumerated in `AccountPayload`:
+  // the unit as the closed pair the contract names (a restored backup can
+  // write anything into the free-text column), and the capability flags.
+  it("GET /api/auth/me publishes the glucose unit as the closed pair and the server features", async () => {
+    const user = await seedAucklandUser();
+    const prisma = getPrismaClient();
+    const { GET } = await import("@/app/api/auth/me/route");
+
+    await prisma.user.update({
+      where: { id: user.id },
+      data: { glucoseUnit: "mmol/L" },
+    });
+    let body = (await (await GET()).json()) as {
+      data: { glucoseUnit: string | null; features: Record<string, unknown> };
+    };
+    expect(body.data.glucoseUnit).toBe("mmol/L");
+    expect(body.data.features).toEqual({ trackIntake: true });
+
+    await prisma.user.update({
+      where: { id: user.id },
+      data: { glucoseUnit: "mmol" },
+    });
+    body = (await (await GET()).json()) as typeof body;
+    expect(body.data.glucoseUnit).toBeNull();
+  });
+
   it("PUT /api/auth/me/timezone rejects an invalid IANA zone with 422", async () => {
     await seedAucklandUser();