diff --git a/docs/api/openapi.yaml b/docs/api/openapi.yaml
index d5a8533ea..f471036a0 100644
--- a/docs/api/openapi.yaml
+++ b/docs/api/openapi.yaml
@@ -21417,6 +21417,38 @@ components:
           description: Personal health score summary (0..100 score, traffic-light band, week-over-week delta). Null on a
             rollup-coverage miss (it rides the thick phase alongside `extras`) and when no pillar is computable.
             Component breakdown is deliberately not serialised here.
+        scoreRings:
+          description: "User-selected hero score rings (max 3, `selectedScoreRings` on the dashboard layout), resolved
+            server-side: READINESS / RECOVERY_SCORE / SLEEP_SCORE via the derived engines (module-gated like
+            `/api/insights/derived`), MED_COMPLIANCE as the pooled 7-day medication adherence (0..100, banded ≥90 green
+            / ≥70 yellow / else red). Only rings with data appear, in selection order — a missing entry means no data or
+            a disabled module, never zero. Clients render what arrives and never recompute."
+          type: array
+          items:
+            type: object
+            properties:
+              id:
+                type: string
+                enum:
+                  - READINESS
+                  - RECOVERY_SCORE
+                  - SLEEP_SCORE
+                  - MED_COMPLIANCE
+              score:
+                type: integer
+                minimum: -9007199254740991
+                maximum: 9007199254740991
+              band:
+                type: string
+                enum:
+                  - green
+                  - yellow
+                  - red
+            required:
+              - id
+              - score
+              - band
+            additionalProperties: false
         briefing:
           anyOf:
             - type: object
diff --git a/src/lib/dashboard/__tests__/score-rings.test.ts b/src/lib/dashboard/__tests__/score-rings.test.ts
new file mode 100644
index 000000000..767011a87
--- /dev/null
+++ b/src/lib/dashboard/__tests__/score-rings.test.ts
@@ -0,0 +1,269 @@
+/**
+ * v1.27.7 — unit tests for the hero score-ring resolver.
+ *
+ * The resolver is tested in isolation with the derived dispatcher and
+ * the compliance engine mocked, pinning:
+ *   - module gating (owning module + the insights gate on derived rings);
+ *   - the pass-through contract for derived scores (same resolvers the
+ *     batch route calls, no recomputation, non-`ok` → no ring);
+ *   - the pooled 7-day adherence math (Σtaken / Σ(taken+missed), skips
+ *     out of the denominator, empty denominator → no ring);
+ *   - the adherence band thresholds (≥90 / ≥70 — the targets-tile rule);
+ *   - per-ring fail-softness (one throwing engine drops only its ring).
+ */
+import { describe, it, expect, vi, beforeEach } from "vitest";
+
+const computeDerivedMetric = vi.fn();
+const loadBaselineProfile = vi.fn();
+const calculateCompliance = vi.fn();
+const buildComplianceMedicationContext = vi.fn();
+const lastNonSkippedTakenAt = vi.fn();
+
+vi.mock("@/lib/insights/derived", () => ({
+  computeDerivedMetric: (...a: unknown[]) => computeDerivedMetric(...a),
+  loadBaselineProfile: (...a: unknown[]) => loadBaselineProfile(...a),
+  isDerivedOk: (d: { status: string }) => d.status === "ok",
+}));
+vi.mock("@/lib/analytics/compliance", () => ({
+  calculateCompliance: (...a: unknown[]) => calculateCompliance(...a),
+  buildComplianceMedicationContext: (...a: unknown[]) =>
+    buildComplianceMedicationContext(...a),
+  lastNonSkippedTakenAt: (...a: unknown[]) => lastNonSkippedTakenAt(...a),
+  SCHEDULE_COMPLIANCE_SELECT: { id: true },
+}));
+
+import { buildScoreRingsBlock, complianceBandForRate } from "../score-rings";
+import type { ModuleKey } from "@/lib/modules/gate";
+
+const NOW = new Date("2026-07-01T10:00:00.000Z");
+const TZ = "Europe/Berlin";
+
+function moduleMap(
+  overrides: Partial<Record<ModuleKey, boolean>> = {},
+): Record<ModuleKey, boolean> {
+  return {
+    recovery: true,
+    sleep: true,
+    medications: true,
+    insights: true,
+    ...overrides,
+  } as Record<ModuleKey, boolean>;
+}
+
+const fakePrisma = {
+  medication: { findMany: vi.fn() },
+  medicationIntakeEvent: { findMany: vi.fn() },
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+} as any;
+
+/** A minimal medication row matching the resolver's select. */
+function med(id: string) {
+  return {
+    id,
+    createdAt: new Date("2026-01-01T00:00:00.000Z"),
+    startsOn: null,
+    endsOn: null,
+    oneShot: false,
+    schedules: [{ id: `${id}-s` }],
+    scheduleRevisions: [],
+    pauseEras: [],
+  };
+}
+
+function complianceResult(taken: number, missed: number, skipped = 0) {
+  return {
+    totalExpected: taken + missed + skipped,
+    taken,
+    skipped,
+    missed,
+    rate: 0, // the resolver pools counts, never this per-med rate
+    streak: 0,
+  };
+}
+
+beforeEach(() => {
+  vi.clearAllMocks();
+  loadBaselineProfile.mockResolvedValue({ userId: "user-1" });
+  buildComplianceMedicationContext.mockReturnValue({ ctx: true });
+  lastNonSkippedTakenAt.mockReturnValue(null);
+  fakePrisma.medication.findMany.mockResolvedValue([]);
+  fakePrisma.medicationIntakeEvent.findMany.mockResolvedValue([]);
+});
+
+describe("complianceBandForRate()", () => {
+  it("bands on the targets-tile thresholds (≥90 green / ≥70 yellow / else red)", () => {
+    expect(complianceBandForRate(100)).toBe("green");
+    expect(complianceBandForRate(90)).toBe("green");
+    expect(complianceBandForRate(89)).toBe("yellow");
+    expect(complianceBandForRate(70)).toBe("yellow");
+    expect(complianceBandForRate(69)).toBe("red");
+    expect(complianceBandForRate(0)).toBe("red");
+  });
+});
+
+describe("buildScoreRingsBlock() — selection + module gating", () => {
+  it("returns [] for an empty selection without touching any engine", async () => {
+    const rings = await buildScoreRingsBlock(
+      fakePrisma,
+      "user-1",
+      TZ,
+      [],
+      moduleMap(),
+      NOW,
+    );
+    expect(rings).toEqual([]);
+    expect(loadBaselineProfile).not.toHaveBeenCalled();
+    expect(computeDerivedMetric).not.toHaveBeenCalled();
+    expect(fakePrisma.medication.findMany).not.toHaveBeenCalled();
+  });
+
+  it("drops rings whose owning module is disabled", async () => {
+    computeDerivedMetric.mockResolvedValue({
+      status: "ok",
+      value: { score: 80, band: "green" },
+    });
+    const rings = await buildScoreRingsBlock(
+      fakePrisma,
+      "user-1",
+      TZ,
+      ["READINESS", "SLEEP_SCORE"],
+      moduleMap({ recovery: false }),
+      NOW,
+    );
+    expect(rings).toEqual([{ id: "SLEEP_SCORE", score: 80, band: "green" }]);
+    expect(computeDerivedMetric).toHaveBeenCalledTimes(1);
+    expect(computeDerivedMetric).toHaveBeenCalledWith(
+      expect.objectContaining({ metric: "SLEEP_SCORE", userId: "user-1" }),
+    );
+  });
+
+  it("the insights gate drops derived rings but keeps the adherence ring", async () => {
+    fakePrisma.medication.findMany.mockResolvedValue([med("m1")]);
+    calculateCompliance.mockReturnValue(complianceResult(9, 1));
+    const rings = await buildScoreRingsBlock(
+      fakePrisma,
+      "user-1",
+      TZ,
+      ["READINESS", "MED_COMPLIANCE"],
+      moduleMap({ insights: false }),
+      NOW,
+    );
+    expect(computeDerivedMetric).not.toHaveBeenCalled();
+    expect(loadBaselineProfile).not.toHaveBeenCalled();
+    expect(rings).toEqual([{ id: "MED_COMPLIANCE", score: 90, band: "green" }]);
+  });
+});
+
+describe("buildScoreRingsBlock() — derived rings", () => {
+  it("passes through the engine's score + band (rounded) in selection order", async () => {
+    computeDerivedMetric.mockImplementation(
+      async ({ metric }: { metric: string }) =>
+        metric === "READINESS"
+          ? { status: "ok", value: { score: 71.6, band: "green" } }
+          : { status: "ok", value: { score: 38, band: "red" } },
+    );
+    const rings = await buildScoreRingsBlock(
+      fakePrisma,
+      "user-1",
+      TZ,
+      ["RECOVERY_SCORE", "READINESS"],
+      moduleMap(),
+      NOW,
+    );
+    expect(rings).toEqual([
+      { id: "RECOVERY_SCORE", score: 38, band: "red" },
+      { id: "READINESS", score: 72, band: "green" },
+    ]);
+    // Profile loaded exactly once (the batch-route pattern).
+    expect(loadBaselineProfile).toHaveBeenCalledTimes(1);
+  });
+
+  it("a non-ok compute yields no ring (self-gating, never a fabricated value)", async () => {
+    computeDerivedMetric.mockResolvedValue({
+      status: "insufficient",
+      reason: "not_enough_history",
+    });
+    const rings = await buildScoreRingsBlock(
+      fakePrisma,
+      "user-1",
+      TZ,
+      ["SLEEP_SCORE"],
+      moduleMap(),
+      NOW,
+    );
+    expect(rings).toEqual([]);
+  });
+
+  it("a throwing engine drops only its own ring (fail-soft)", async () => {
+    computeDerivedMetric.mockImplementation(
+      async ({ metric }: { metric: string }) => {
+        if (metric === "READINESS") throw new Error("engine down");
+        return { status: "ok", value: { score: 55, band: "yellow" } };
+      },
+    );
+    const rings = await buildScoreRingsBlock(
+      fakePrisma,
+      "user-1",
+      TZ,
+      ["READINESS", "SLEEP_SCORE"],
+      moduleMap(),
+      NOW,
+    );
+    expect(rings).toEqual([{ id: "SLEEP_SCORE", score: 55, band: "yellow" }]);
+  });
+});
+
+describe("buildScoreRingsBlock() — pooled 7-day adherence", () => {
+  it("pools Σtaken / Σ(taken+missed) across medications; skips stay out", async () => {
+    fakePrisma.medication.findMany.mockResolvedValue([med("m1"), med("m2")]);
+    calculateCompliance
+      .mockReturnValueOnce(complianceResult(6, 1, 2)) // m1: skips ignored
+      .mockReturnValueOnce(complianceResult(2, 3));
+    const rings = await buildScoreRingsBlock(
+      fakePrisma,
+      "user-1",
+      TZ,
+      ["MED_COMPLIANCE"],
+      moduleMap(),
+      NOW,
+    );
+    // (6+2) / (6+1+2+3) = 8/12 = 66.67 → 67, red band.
+    expect(rings).toEqual([{ id: "MED_COMPLIANCE", score: 67, band: "red" }]);
+    // The 7-day window rides the canonical engine call.
+    expect(calculateCompliance).toHaveBeenCalledWith(
+      expect.anything(),
+      expect.anything(),
+      7,
+      expect.anything(),
+      expect.objectContaining({ now: NOW }),
+    );
+  });
+
+  it("no active non-PRN medication → no ring", async () => {
+    fakePrisma.medication.findMany.mockResolvedValue([]);
+    const rings = await buildScoreRingsBlock(
+      fakePrisma,
+      "user-1",
+      TZ,
+      ["MED_COMPLIANCE"],
+      moduleMap(),
+      NOW,
+    );
+    expect(rings).toEqual([]);
+    expect(fakePrisma.medicationIntakeEvent.findMany).not.toHaveBeenCalled();
+  });
+
+  it("zero expected doses in the window → no ring (never a hollow 100%)", async () => {
+    fakePrisma.medication.findMany.mockResolvedValue([med("m1")]);
+    calculateCompliance.mockReturnValue(complianceResult(0, 0, 0));
+    const rings = await buildScoreRingsBlock(
+      fakePrisma,
+      "user-1",
+      TZ,
+      ["MED_COMPLIANCE"],
+      moduleMap(),
+      NOW,
+    );
+    expect(rings).toEqual([]);
+  });
+});
diff --git a/src/lib/dashboard/__tests__/snapshot.test.ts b/src/lib/dashboard/__tests__/snapshot.test.ts
index 0cf95f422..656b147eb 100644
--- a/src/lib/dashboard/__tests__/snapshot.test.ts
+++ b/src/lib/dashboard/__tests__/snapshot.test.ts
@@ -64,6 +64,12 @@ const resolveModuleMap = vi.fn();
 vi.mock("@/lib/modules/gate", () => ({
   resolveModuleMap: (...a: unknown[]) => resolveModuleMap(...a),
 }));
+// v1.27.7 — hero score rings. Mocked so the suite never touches the
+// derived engines / compliance reads; the resolver has its own suite.
+const buildScoreRingsBlock = vi.fn();
+vi.mock("@/lib/dashboard/score-rings", () => ({
+  buildScoreRingsBlock: (...a: unknown[]) => buildScoreRingsBlock(...a),
+}));
 
 /** Every toggleable key on, with optional per-key overrides. */
 function moduleMap(
@@ -173,6 +179,7 @@ beforeEach(() => {
   });
   computeUserHealthScoreFastPath.mockResolvedValue(null);
   resolveModuleMap.mockResolvedValue(moduleMap());
+  buildScoreRingsBlock.mockResolvedValue([]);
 });
 
 describe("buildDashboardSnapshot — envelope shape", () => {
@@ -1171,3 +1178,62 @@ describe("buildDashboardSnapshot — ambient narrative (A4/A5/A6)", () => {
     expect(snap.briefingMemory).toBeNull();
   });
 });
+
+/**
+ * v1.27.7 — hero score rings on the snapshot wire. The resolver itself
+ * is pinned in `score-rings.test.ts`; here only the assembly contract:
+ * the builder receives the RESOLVED `selectedScoreRings` preference +
+ * the module map, its result rides `snapshot.scoreRings`, and a
+ * rejection degrades to an empty row (never a sunk snapshot).
+ */
+describe("buildDashboardSnapshot — scoreRings wire", () => {
+  it("threads the default selection (MED_COMPLIANCE) for a layout-less user", async () => {
+    probeRollupCoverage.mockResolvedValue(new Map());
+    buildScoreRingsBlock.mockResolvedValue([
+      { id: "MED_COMPLIANCE", score: 92, band: "green" },
+    ]);
+
+    const snap = await buildDashboardSnapshot(fakePrisma, baseUser());
+
+    expect(buildScoreRingsBlock).toHaveBeenCalledTimes(1);
+    const [, userId, tz, selected, modules] =
+      buildScoreRingsBlock.mock.calls[0];
+    expect(userId).toBe("user-1");
+    expect(tz).toBe("Europe/Berlin");
+    expect(selected).toEqual(["MED_COMPLIANCE"]);
+    expect(modules).toEqual(moduleMap());
+    expect(snap.scoreRings).toEqual([
+      { id: "MED_COMPLIANCE", score: 92, band: "green" },
+    ]);
+  });
+
+  it("threads a saved multi-ring selection in order", async () => {
+    probeRollupCoverage.mockResolvedValue(new Map());
+    buildScoreRingsBlock.mockResolvedValue([]);
+
+    await buildDashboardSnapshot(
+      fakePrisma,
+      baseUser({
+        dashboardWidgetsJson: {
+          version: 1,
+          widgets: [{ id: "weight", visible: true, order: 0 }],
+          selectedScoreRings: ["READINESS", "SLEEP_SCORE"],
+        },
+      }),
+    );
+
+    const [, , , selected] = buildScoreRingsBlock.mock.calls[0];
+    expect(selected).toEqual(["READINESS", "SLEEP_SCORE"]);
+  });
+
+  it("degrades a rejecting resolver to an empty ring row (fail-soft)", async () => {
+    probeRollupCoverage.mockResolvedValue(new Map());
+    buildScoreRingsBlock.mockRejectedValue(new Error("engine down"));
+
+    const snap = await buildDashboardSnapshot(fakePrisma, baseUser());
+
+    expect(snap.scoreRings).toEqual([]);
+    // The rest of the envelope is untouched by the failure.
+    expect(snap.tiles.summaries.WEIGHT).toBeDefined();
+  });
+});
diff --git a/src/lib/dashboard/score-rings.ts b/src/lib/dashboard/score-rings.ts
new file mode 100644
index 000000000..26bee67e3
--- /dev/null
+++ b/src/lib/dashboard/score-rings.ts
@@ -0,0 +1,245 @@
+/**
+ * v1.27.7 — hero score-ring resolution for the dashboard snapshot.
+ *
+ * Resolves the user-selected `selectedScoreRings` (max 3, closed
+ * `SCORE_RING_IDS` set) into `{ id, score, band }` entries the hero
+ * renders next to the health-score ring:
+ *
+ *   - `READINESS` / `RECOVERY_SCORE` / `SLEEP_SCORE` call the SAME
+ *     `computeDerivedMetric` dispatcher the `/api/insights/derived`
+ *     batch route uses (profile loaded once via the shared
+ *     `loadBaselineProfile`) — no score logic is re-derived here, and a
+ *     non-`ok` compute (insufficient data, engine gate) simply yields no
+ *     ring, mirroring the wellness strip's self-gating.
+ *   - `MED_COMPLIANCE` is the pooled 7-day adherence across active
+ *     non-PRN medications through the canonical `calculateCompliance`
+ *     engine (the exact per-medication pattern the targets tile and the
+ *     health-score pillar use): per-med `ComplianceResult`s are pooled
+ *     as Σtaken / Σ(taken + missed) — skips stay out of the denominator,
+ *     matching the per-medication rate semantics — and banded on the
+ *     same ≥90 / ≥70 thresholds the targets-tile classification carries.
+ *
+ * Module gating rides the client-safe `SCORE_RING_MODULE` map in
+ * `@/lib/dashboard-layout` (mirroring the derived routes'
+ * `DERIVED_MODULE`: readiness/recovery → recovery module, sleep score →
+ * sleep module, MED_COMPLIANCE → medications) plus the `insights` gate
+ * every derived read sits behind.
+ *
+ * Every ring resolves fail-soft: a throwing engine drops its ring, never
+ * the snapshot.
+ */
+import type { PrismaClient } from "@/generated/prisma/client";
+import type { ModuleKey } from "@/lib/modules/gate";
+import {
+  SCORE_RING_IDS,
+  SCORE_RING_MODULE,
+  type ScoreRingId,
+} from "@/lib/dashboard-layout";
+import {
+  computeDerivedMetric,
+  loadBaselineProfile,
+  isDerivedOk,
+  type DerivedMetricId,
+} from "@/lib/insights/derived";
+import {
+  buildComplianceMedicationContext,
+  calculateCompliance,
+  lastNonSkippedTakenAt,
+  SCHEDULE_COMPLIANCE_SELECT,
+} from "@/lib/analytics/compliance";
+
+export type ScoreRingBand = "green" | "yellow" | "red";
+
+/** One resolved hero ring — score + band only, no component breakdown. */
+export interface DashboardScoreRing {
+  id: ScoreRingId;
+  /** The 0..100 score (rounded). */
+  score: number;
+  band: ScoreRingBand;
+}
+
+/** The derived-registry id behind each derived ring (identity mapping). */
+const DERIVED_RING_METRIC: Partial<Record<ScoreRingId, DerivedMetricId>> = {
+  READINESS: "READINESS",
+  RECOVERY_SCORE: "RECOVERY_SCORE",
+  SLEEP_SCORE: "SLEEP_SCORE",
+};
+
+/**
+ * Adherence % → band, on the thresholds the targets tile's
+ * MEDICATION_COMPLIANCE classification already uses (≥90 "very good" /
+ * ≥70 "good" / below "low"), so the ring and the targets surface can
+ * never disagree on colour for the same rate.
+ */
+export function complianceBandForRate(rate: number): ScoreRingBand {
+  if (rate >= 90) return "green";
+  if (rate >= 70) return "yellow";
+  return "red";
+}
+
+/** The compute payload slice every derived score ring reads. */
+interface ScoreBandValue {
+  score: number;
+  band: ScoreRingBand;
+}
+
+/**
+ * Pooled 7-day medication adherence, or `null` when nothing was expected
+ * (no active non-PRN medication, or no due slot in the window) — the
+ * ring self-gates instead of asserting a hollow 100%.
+ */
+async function resolveMedComplianceRing(
+  prisma: PrismaClient,
+  userId: string,
+  userTz: string,
+  now: Date,
+): Promise<DashboardScoreRing | null> {
+  const medications = await prisma.medication.findMany({
+    // As-needed (PRN) medications carry no expected doses and are
+    // excluded from every compliance rate (the v1.16.11 rule).
+    where: { userId, active: true, asNeeded: false },
+    select: {
+      id: true,
+      createdAt: true,
+      startsOn: true,
+      endsOn: true,
+      oneShot: true,
+      schedules: { select: SCHEDULE_COMPLIANCE_SELECT },
+      // Archived schedule eras + pause eras so a past day scores against
+      // the schedule that was live then and paused days drop out of the
+      // denominator — the same context every compliance caller threads.
+      scheduleRevisions: {
+        orderBy: { validFrom: "asc" },
+        select: {
+          id: true,
+          validFrom: true,
+          validUntil: true,
+          payload: true,
+          supersededByRevisionId: true,
+        },
+      },
+      pauseEras: { select: { pausedAt: true, resumedAt: true } },
+    },
+  });
+  if (medications.length === 0) return null;
+
+  // 30 days of intake events even though the rate window is 7: rolling /
+  // interval cadences anchor `nextDue` off the last non-skipped take,
+  // which can sit before the window start (the health-score pillar
+  // fetches the same margin).
+  const since = new Date(now.getTime() - 30 * 24 * 60 * 60 * 1000);
+  const intakeEvents = await prisma.medicationIntakeEvent.findMany({
+    where: {
+      userId,
+      deletedAt: null,
+      medicationId: { in: medications.map((m) => m.id) },
+      scheduledFor: { gte: since, lte: now },
+    },
+    select: {
+      medicationId: true,
+      scheduledFor: true,
+      takenAt: true,
+      skipped: true,
+    },
+  });
+  const eventsByMed = new Map<string, typeof intakeEvents>();
+  for (const ev of intakeEvents) {
+    const list = eventsByMed.get(ev.medicationId);
+    if (list) list.push(ev);
+    else eventsByMed.set(ev.medicationId, [ev]);
+  }
+
+  let taken = 0;
+  let missed = 0;
+  for (const med of medications) {
+    const events = eventsByMed.get(med.id) ?? [];
+    const medicationContext = buildComplianceMedicationContext(
+      med,
+      lastNonSkippedTakenAt(events),
+      userTz,
+    );
+    const result = calculateCompliance(
+      events,
+      med.schedules,
+      7,
+      med.createdAt,
+      {
+        now,
+        medicationContext,
+      },
+    );
+    taken += result.taken;
+    missed += result.missed;
+  }
+
+  const denominator = taken + missed;
+  if (denominator === 0) return null;
+  const rate = Math.min(100, Math.round((taken / denominator) * 100));
+  return {
+    id: "MED_COMPLIANCE",
+    score: rate,
+    band: complianceBandForRate(rate),
+  };
+}
+
+/**
+ * Resolve the selected hero rings against the module map. Selection
+ * order is preserved; rings without data drop out. Every ring is
+ * fail-soft on its own — one throwing engine never takes the row (or
+ * the snapshot) down.
+ */
+export async function buildScoreRingsBlock(
+  prisma: PrismaClient,
+  userId: string,
+  userTz: string,
+  selected: ScoreRingId[],
+  modules: Record<ModuleKey, boolean>,
+  now: Date,
+): Promise<DashboardScoreRing[]> {
+  const eligible = selected.filter((id) => {
+    if (!(SCORE_RING_IDS as readonly string[]).includes(id)) return false;
+    if (modules[SCORE_RING_MODULE[id]] === false) return false;
+    // The derived scores are an insights-layer read everywhere else
+    // (`/api/insights/derived*` sits behind the insights module) — the
+    // snapshot honours the same gate.
+    if (DERIVED_RING_METRIC[id] && modules.insights === false) return false;
+    return true;
+  });
+  if (eligible.length === 0) return [];
+
+  // Profile loaded ONCE via the shared loader (the batch-route pattern);
+  // only when a derived ring is actually selected.
+  const needsProfile = eligible.some((id) => DERIVED_RING_METRIC[id]);
+  const profile = needsProfile
+    ? await loadBaselineProfile(prisma, userId)
+    : null;
+
+  const resolved = await Promise.all(
+    eligible.map(async (id): Promise<DashboardScoreRing | null> => {
+      try {
+        if (id === "MED_COMPLIANCE") {
+          return await resolveMedComplianceRing(prisma, userId, userTz, now);
+        }
+        const metric = DERIVED_RING_METRIC[id];
+        if (!metric || !profile) return null;
+        const derived = await computeDerivedMetric({
+          metric,
+          userId,
+          profile,
+          now,
+        });
+        if (!isDerivedOk(derived)) return null;
+        const value = derived.value as ScoreBandValue;
+        if (typeof value?.score !== "number" || !Number.isFinite(value.score)) {
+          return null;
+        }
+        return { id, score: Math.round(value.score), band: value.band };
+      } catch {
+        // Fail-soft per ring — a transient engine error drops the ring,
+        // never the snapshot.
+        return null;
+      }
+    }),
+  );
+  return resolved.filter((r): r is DashboardScoreRing => r !== null);
+}
diff --git a/src/lib/dashboard/snapshot.ts b/src/lib/dashboard/snapshot.ts
index 1c2ca209f..1b26e6bdd 100644
--- a/src/lib/dashboard/snapshot.ts
+++ b/src/lib/dashboard/snapshot.ts
@@ -93,6 +93,10 @@ import {
   buildCoachMemoryBlock,
   type CoachMemoryBlock,
 } from "@/lib/ai/coach/memory-snapshot";
+import {
+  buildScoreRingsBlock,
+  type DashboardScoreRing,
+} from "@/lib/dashboard/score-rings";
 import { getServerTranslator } from "@/lib/i18n/server-translator";
 import type { Locale } from "@/lib/i18n/config";
 import { getAgeFromDateOfBirth } from "@/lib/analytics/pulse-targets";
@@ -401,6 +405,17 @@ export interface DashboardSnapshot {
    * thick phase alongside `extras`) and when no pillar is computable.
    */
   healthScore: DashboardSnapshotHealthScore | null;
+  /**
+   * v1.27.7 — the user-selected hero score rings (max 3), resolved
+   * server-side: READINESS / RECOVERY_SCORE / SLEEP_SCORE through the
+   * same engines the derived batch route calls, MED_COMPLIANCE as the
+   * pooled 7-day adherence from the canonical compliance engine. Only
+   * rings with data appear (selection order preserved); module-disabled
+   * and data-less selections drop out, so the hero row self-gates.
+   * Optional on the type (additive contract) so older cached snapshots
+   * / fixtures stay valid; the live builder always sets it.
+   */
+  scoreRings?: DashboardScoreRing[];
   briefing: DailyBriefing | null;
   /**
    * v1.21.2 (A4) — server-resolved recall + forward-look for the briefing card.
@@ -1027,6 +1042,12 @@ export async function buildDashboardSnapshot(
      * derived engines. Defaults to the real `buildScoreNarrativeBlock`.
      */
     scoreNarrative?: typeof buildScoreNarrativeBlock;
+    /**
+     * v1.27.7 — injectable hero score-ring resolver so the snapshot tests
+     * can pin the wire without the derived engines / compliance reads.
+     * Defaults to the real `buildScoreRingsBlock`.
+     */
+    scoreRings?: typeof buildScoreRingsBlock;
   } = {},
 ): Promise<DashboardSnapshot> {
   const userTz = user.timezone ?? DEFAULT_TIMEZONE;
@@ -1045,28 +1066,56 @@ export async function buildDashboardSnapshot(
   const coverage = await time("coverage", () => probeRollupCoverage(user.id));
   const warm = isThickPhaseWarm(coverage);
 
-  const [slimRaw, moodRaw, extrasResult, flags, medsToday, modules] =
-    await Promise.all([
-      // A5 — reuse the coverage map already probed above so the slice
-      // doesn't re-run the identical `probeRollupCoverage` query.
-      time("summaries", () => computeSummariesSlice(user.id, coverage)),
-      time("mood", () => buildMoodBlock(prisma, user.id)),
-      warm
-        ? time("extras", () =>
-            buildExtras(prisma, user, userTz, coverage, now, time),
-          )
-        : Promise.resolve(null),
-      time("flags", () => getAssistantFlags()),
-      // Fast phase — projection-backed today tally + earliest next-due.
-      time("medsToday", () =>
-        buildMedsTodayBlock(prisma, user.id, userTz, now),
+  // Resolve the stored layout once up front: the hero score rings read
+  // the `selectedScoreRings` preference off it, and the module-gated
+  // `layout` block below reuses the same resolution.
+  const storedLayout = resolveDashboardLayout(user.dashboardWidgetsJson);
+
+  // v1.18.0 — resolved module map (memoised per request); gates the
+  // toggleable tiles below at the build layer. Held as a shared promise
+  // so the score-ring task can await it inside the same `Promise.all`
+  // without a second resolver call.
+  const modulesPromise = time("modules", () =>
+    (options.modules ?? (() => resolveModuleMap(user.id)))(),
+  );
+
+  const [
+    slimRaw,
+    moodRaw,
+    extrasResult,
+    flags,
+    medsToday,
+    modules,
+    scoreRings,
+  ] = await Promise.all([
+    // A5 — reuse the coverage map already probed above so the slice
+    // doesn't re-run the identical `probeRollupCoverage` query.
+    time("summaries", () => computeSummariesSlice(user.id, coverage)),
+    time("mood", () => buildMoodBlock(prisma, user.id)),
+    warm
+      ? time("extras", () =>
+          buildExtras(prisma, user, userTz, coverage, now, time),
+        )
+      : Promise.resolve(null),
+    time("flags", () => getAssistantFlags()),
+    // Fast phase — projection-backed today tally + earliest next-due.
+    time("medsToday", () => buildMedsTodayBlock(prisma, user.id, userTz, now)),
+    modulesPromise,
+    // v1.27.7 — the selected hero score rings, resolved through the
+    // same engines the derived batch route calls (+ the canonical
+    // compliance engine for MED_COMPLIANCE). Fail-soft: a throwing
+    // resolver yields no rings, never a sunk snapshot.
+    time("scoreRings", async () =>
+      (options.scoreRings ?? buildScoreRingsBlock)(
+        prisma,
+        user.id,
+        userTz,
+        storedLayout.selectedScoreRings ?? [],
+        await modulesPromise,
+        now,
       ),
-      // v1.18.0 — resolved module map (memoised per request); gates the
-      // toggleable tiles below at the build layer.
-      time("modules", () =>
-        (options.modules ?? (() => resolveModuleMap(user.id)))(),
-      ),
-    ]);
+    ).catch(() => [] as DashboardScoreRing[]),
+  ]);
 
   // v1.18.0 — strip disabled-module data before it leaves the server.
   // Mood is blanked when the mood module is off; sleep / glucose summary
@@ -1090,10 +1139,7 @@ export async function buildDashboardSnapshot(
     });
   }
 
-  const layout = gateLayoutByModules(
-    resolveDashboardLayout(user.dashboardWidgetsJson),
-    modules,
-  );
+  const layout = gateLayoutByModules(storedLayout, modules);
   // v1.18.0 — the Daily Briefing is the dashboard's AI-narrative surface,
   // so the `insights` module gates it alongside the operator briefing
   // flag + per-user coach opt-out. Disabling `insights` yields the same
@@ -1191,6 +1237,10 @@ export async function buildDashboardSnapshot(
           returnToBand: scoreNarrative?.returnToBand ?? null,
         }
       : null,
+    // v1.27.7 — the resolved hero score rings (selection order, data-
+    // gated). Always set by the live builder; optional on the type so
+    // older cached snapshots stay valid.
+    scoreRings,
     briefing: briefing.briefing,
     // v1.21.2 (A4) — the briefing recall + forward-look. Null when there is no
     // prior narrative on file or no briefing is shown.
diff --git a/src/lib/openapi/routes/insights/schemas.ts b/src/lib/openapi/routes/insights/schemas.ts
index 09f805707..dcdcb3d3c 100644
--- a/src/lib/openapi/routes/insights/schemas.ts
+++ b/src/lib/openapi/routes/insights/schemas.ts
@@ -852,6 +852,26 @@ export const dashboardSnapshotResponse = z
       .describe(
         "Personal health score summary (0..100 score, traffic-light band, week-over-week delta). Null on a rollup-coverage miss (it rides the thick phase alongside `extras`) and when no pillar is computable. Component breakdown is deliberately not serialised here.",
       ),
+    // v1.27.7 — user-selected hero score rings (max 3), resolved
+    // server-side next to the health score. Additive; optional so
+    // cached pre-v1.27.7 snapshots stay decodable.
+    scoreRings: z
+      .array(
+        z.object({
+          id: z.enum([
+            "READINESS",
+            "RECOVERY_SCORE",
+            "SLEEP_SCORE",
+            "MED_COMPLIANCE",
+          ]),
+          score: z.number().int(),
+          band: z.enum(["green", "yellow", "red"]),
+        }),
+      )
+      .optional()
+      .describe(
+        "User-selected hero score rings (max 3, `selectedScoreRings` on the dashboard layout), resolved server-side: READINESS / RECOVERY_SCORE / SLEEP_SCORE via the derived engines (module-gated like `/api/insights/derived`), MED_COMPLIANCE as the pooled 7-day medication adherence (0..100, banded ≥90 green / ≥70 yellow / else red). Only rings with data appear, in selection order — a missing entry means no data or a disabled module, never zero. Clients render what arrives and never recompute.",
+      ),
     briefing: z.record(z.string(), z.unknown()).nullable(),
     briefingState: z.enum(["ready", "preparing", "disabled", "no-provider"]),
     briefingUpdatedAt: z.string().nullable(),