diff --git a/marketing/README.md b/marketing/README.md
index c2c5dbb..fd8c06c 100644
--- a/marketing/README.md
+++ b/marketing/README.md
@@ -22,3 +22,12 @@ a human reviews and moves it to `approved/` → the human publishes from `approv
 under their own account → the artifact (or a pointer) lands in `posted/`.
 
 Nothing in `drafts/` or `pending/` is ever publishable, by anyone, by any means.
+
+## The weekly read
+
+`bun --env-file=.env scripts/weekly-metrics.ts` (or `bun run metrics:weekly`)
+rewrites `metrics/weekly.md` from the live databases: the staged funnel, the
+campaign breakdown (`getAnalyticsSummary.topCampaigns`' grouping), and the one
+stage that moved. It needs `TURSO_DB_URL`, `TURSO_DB_TOKEN`, `NOOK_DB_URL` and
+`NOOK_DB_TOKEN` — no other production secret. The file is generated; never
+hand-edit it. The numbers are engineering's; the interpretation is the CMO's.
diff --git a/marketing/metrics/weekly.md b/marketing/metrics/weekly.md
index 766ca5c..2ea9eaf 100644
--- a/marketing/metrics/weekly.md
+++ b/marketing/metrics/weekly.md
@@ -1,4 +1,51 @@
 # Weekly funnel snapshot
 
-Generated weekly from the analytics DB + `trials`/`licenses`/`activations`.
-Format: the funnel numbers, what moved, and the one thing worth acting on.
+Window: **2026-10-22 16:00:00 → 2026-10-29 16:00:00 UTC** (7 days). Previous: 2026-10-15 16:00:00 → 2026-10-22 16:00:00 UTC.
+
+Generated by `bun --env-file=.env scripts/weekly-metrics.ts`; regenerated weekly, never hand-edited. The analysis is the CMO's.
+
+## Funnel
+
+| Stage | This week | Last week | Change |
+|---|---:|---:|---:|
+| visit (page views) | 61 | 56 | +5 |
+| download click → DMG served (one label) † | 156 | 0 | +156 |
+| trial started | 2 | 0 | +2 |
+| checkout page visit † | 0 | 0 | 0 |
+| purchase (licence issued) | 0 | 0 | 0 |
+| activation | 0 | 0 | 0 |
+
+## Campaigns
+
+Top 10 by volume, untagged excluded — the same grouping `getAnalyticsSummary.topCampaigns` returns.
+
+| Source | Medium | Campaign | Rows |
+|---|---|---|---:|
+| hn | post | launch | 2 |
+| direct | — | deploycheck-direct | 1 |
+| hn | — | flushproof | 1 |
+| hn | post | deploycheck-ref | 1 |
+| r_macapps | — | week2 | 1 |
+| x | — | — | 1 |
+
+7 of 356 rows in the window carry campaign tags; the rest are untagged and therefore unattributed.
+
+## The one thing that moved
+
+**download click → DMG served (one label): 0 → 156 (+156).**
+
+## Before acting on these numbers
+
+- **356 of 356 rows in the window came from a loopback address** (127.0.0.1 / ::1); every one of the 12035 addressed rows the table has ever held is loopback (13 carry no address). Either this host is the only audience, or the app sits behind a local proxy and `getRequestIP` records the proxy, not the visitor. Either way the address identifies nobody — "unique visitors" collapses to one host and per-channel reach cannot be read from it.
+- **The download stage is one label, not two.** The landing-door route and the file route that serves the DMG both write `/api/downloads/thenook`, so "download click → DMG served" cannot be split: one served click writes two rows, a click that fails to resolve writes one, and a Sparkle update writes one. Of this window's 156 download rows, 156 are loopback and 117 are not browser user agents (curl, Sparkle, link-preview crawlers).
+- **Checkout start is not recorded.** `POST /api/the-nook/checkout` — the call that actually creates the Stripe session — writes nothing to analytics; the only trace is the /checkout page view reported above, which is a page, not a started checkout.
+- **There is no host dimension.** `VisitorAnalytics` records a path, not the site, so the Nook's landing page (`/` on nook.freno.me) is the same row as freno.me's root. "visit" above is site-wide page views, not Nook visits.
+- **No conversion rate before the cohort matures.** Trial→paid belongs to the mature Day 28–35 read (FRE-197); a ratio from a partial cohort is not a metric.
+
+† Proxy or merged label — see *Before acting on these numbers* above.
+
+## Sources
+
+- `VisitorAnalytics` (freno.me Turso DB) — visits, downloads, campaigns.
+- `trials`, `licenses`, `activations` (the-nook Turso DB) — the paid funnel.
+- Generated 2026-10-29T16:00:00Z.
diff --git a/package.json b/package.json
index 8ed8203..35ff3dd 100644
--- a/package.json
+++ b/package.json
@@ -12,6 +12,7 @@
     "test:coverage": "bun test --coverage",
     "perf": "bun run scripts/perf-test.ts",
     "perf:compare": "bun run scripts/perf-compare.ts",
+    "metrics:weekly": "bun --env-file=.env scripts/weekly-metrics.ts",
     "nook:grant": "NODE_ENV=production bun --env-file=.env scripts/grant-nook-license.ts"
   },
   "dependencies": {
diff --git a/scripts/weekly-metrics.ts b/scripts/weekly-metrics.ts
new file mode 100644
index 0000000..f24c693
--- /dev/null
+++ b/scripts/weekly-metrics.ts
@@ -0,0 +1,153 @@
+import { createClient } from "@libsql/client/web";
+import { mkdir, writeFile } from "node:fs/promises";
+import { dirname, resolve } from "node:path";
+import {
+  getWeeklyReport,
+  renderWeeklyMarkdown,
+  type Connections
+} from "~/server/weekly-metrics";
+
+/**
+ * Write `marketing/metrics/weekly.md` from the live analytics and licence DBs.
+ *
+ *   bun --env-file=.env scripts/weekly-metrics.ts
+ *   bun --env-file=.env scripts/weekly-metrics.ts --days 14 --now 2026-11-05T09:00:00Z
+ *
+ * Required environment (all four; the analytics token also opens the licence
+ * DB, which is why the weekly job can run from a checkout that has no Stripe
+ * or Apple secrets):
+ *
+ *   TURSO_DB_URL / TURSO_DB_TOKEN        freno.me DB — VisitorAnalytics
+ *   NOOK_DB_URL / NOOK_DB_TOKEN          the-nook DB — trials, licenses, activations
+ *
+ * This script deliberately does not import `~/env/server`: that schema demands
+ * every production secret, and the metrics job needs two databases and nothing
+ * else.
+ *
+ * The output path is anchored at the repo root, so running it from any cwd
+ * writes the same file.
+ */
+
+interface Options {
+  days: number;
+  now: Date;
+  out: string;
+  stdout: boolean;
+}
+
+function usage(): string {
+  return [
+    "Usage: bun --env-file=.env scripts/weekly-metrics.ts [options]",
+    "",
+    "  --days N          window length in days (default 7)",
+    "  --now ISO         end of the window (default: now)",
+    "  --out PATH        where to write (default: marketing/metrics/weekly.md)",
+    "  --stdout          print the report instead of writing a file"
+  ].join("\n");
+}
+
+function parseArgs(argv: string[]): Options {
+  const repoRoot = resolve(import.meta.dir, "..");
+  const options: Options = {
+    days: 7,
+    now: new Date(),
+    out: resolve(repoRoot, "marketing/metrics/weekly.md"),
+    stdout: false
+  };
+
+  for (let i = 0; i < argv.length; i += 1) {
+    const arg = argv[i]!;
+    const value = () => {
+      const next = argv[i + 1];
+      if (next === undefined) throw new Error(`${arg} needs a value\n\n${usage()}`);
+      i += 1;
+      return next;
+    };
+
+    switch (arg) {
+      case "--days": {
+        const days = Number(value());
+        if (!Number.isFinite(days) || days <= 0) {
+          throw new Error(`--days must be a positive number\n\n${usage()}`);
+        }
+        options.days = days;
+        break;
+      }
+      case "--now": {
+        const now = new Date(value());
+        if (Number.isNaN(now.getTime())) {
+          throw new Error(`--now must be an ISO timestamp\n\n${usage()}`);
+        }
+        options.now = now;
+        break;
+      }
+      case "--out":
+        options.out = resolve(value());
+        break;
+      case "--stdout":
+        options.stdout = true;
+        break;
+      case "-h":
+      case "--help":
+        console.log(usage());
+        process.exit(0);
+      default:
+        throw new Error(`Unknown argument ${arg}\n\n${usage()}`);
+    }
+  }
+
+  return options;
+}
+
+function requiredEnv(name: string): string {
+  const value = process.env[name];
+  if (!value || value.trim() === "") {
+    throw new Error(
+      `${name} is not set. The weekly job needs TURSO_DB_URL, TURSO_DB_TOKEN, ` +
+        `NOOK_DB_URL and NOOK_DB_TOKEN — run it as ` +
+        `\`bun --env-file=.env scripts/weekly-metrics.ts\` with those four in .env.`
+    );
+  }
+  return value;
+}
+
+function connect(url: string, token: string) {
+  return createClient({ url, authToken: token });
+}
+
+async function main(): Promise<void> {
+  const options = parseArgs(process.argv.slice(2));
+
+  const connections: Connections = {
+    analytics: connect(requiredEnv("TURSO_DB_URL"), requiredEnv("TURSO_DB_TOKEN")),
+    nook: connect(requiredEnv("NOOK_DB_URL"), requiredEnv("NOOK_DB_TOKEN"))
+  };
+
+  const report = await getWeeklyReport(connections, {
+    days: options.days,
+    now: options.now
+  });
+  const markdown = renderWeeklyMarkdown(report);
+
+  if (options.stdout) {
+    process.stdout.write(markdown);
+    return;
+  }
+
+  await mkdir(dirname(options.out), { recursive: true });
+  await writeFile(options.out, markdown, "utf8");
+
+  const f = report.counts;
+  console.log(
+    `wrote ${options.out}\n` +
+      `window ${report.window.start} → ${report.window.end}\n` +
+      `visit ${f.visit}, download ${f.download}, trial ${f.trial}, ` +
+      `checkout ${f.checkout}, purchase ${f.purchase}, activation ${f.activation}\n` +
+      `mover: ${report.mover ? `${report.mover.label} ${report.mover.before} → ${report.mover.now}` : "none"}`
+  );
+}
+
+main().catch((error) => {
+  console.error(error instanceof Error ? error.message : error);
+  process.exit(1);
+});
diff --git a/src/server/weekly-metrics.test.ts b/src/server/weekly-metrics.test.ts
new file mode 100644
index 0000000..d7321ec
--- /dev/null
+++ b/src/server/weekly-metrics.test.ts
@@ -0,0 +1,381 @@
+import { beforeEach, describe, expect, it } from "bun:test";
+import { Database } from "bun:sqlite";
+import {
+  VISITOR_ANALYTICS_COLUMNS,
+  VISITOR_ANALYTICS_DDL,
+  VISITOR_ANALYTICS_INSERT
+} from "./analytics-schema";
+import {
+  NOOK_DOWNLOAD_PATH,
+  getWeeklyReport,
+  pickMover,
+  readCampaigns,
+  readFunnel,
+  readTraffic,
+  renderWeeklyMarkdown,
+  windowsFor,
+  type Connections,
+  type FunnelCounts,
+  type MetricsConn
+} from "./weekly-metrics";
+
+// Same reasoning as the backfill suite: the queries run real SQL, so an
+// in-memory SQLite shaped like production is the only honest stand-in. A stub
+// that returned canned rows would pass with a column or a label the live table
+// does not have.
+
+const NOOK_DDL = [
+  `CREATE TABLE trials (
+     fingerprint TEXT PRIMARY KEY,
+     started_at TEXT NOT NULL,
+     email TEXT
+   )`,
+  `CREATE TABLE licenses (
+     id TEXT PRIMARY KEY,
+     key TEXT UNIQUE NOT NULL,
+     email TEXT NOT NULL,
+     stripe_session_id TEXT UNIQUE NOT NULL,
+     created_at TEXT NOT NULL,
+     revoked INTEGER NOT NULL DEFAULT 0
+   )`,
+  `CREATE TABLE activations (
+     id TEXT PRIMARY KEY,
+     license_id TEXT NOT NULL,
+     device_fingerprint TEXT NOT NULL,
+     device_name TEXT NOT NULL,
+     activated_at TEXT NOT NULL,
+     deactivated_at TEXT
+   )`
+];
+
+function adapter(db: Database): MetricsConn {
+  return {
+    async execute(query) {
+      const args = (query.args ?? []) as never[];
+      const statement = db.query(query.sql);
+      if (/^\s*(select|pragma|with)\b/i.test(query.sql)) {
+        return { rows: statement.all(...args) as unknown[], rowsAffected: 0 };
+      }
+      return {
+        rows: [] as unknown[],
+        rowsAffected: statement.run(...args).changes
+      };
+    }
+  };
+}
+
+let analyticsDb: Database;
+let nookDb: Database;
+let conns: Connections;
+
+const NOW = new Date("2026-10-29T16:00:00Z");
+
+const row = (
+  overrides: Record<string, unknown>
+): Record<string, unknown> => ({
+  id: crypto.randomUUID(),
+  user_id: null,
+  path: "/",
+  method: "GET",
+  referrer: null,
+  user_agent: "Mozilla/5.0 (Macintosh)",
+  ip_address: "203.0.113.9",
+  country: "GB",
+  device_type: "desktop",
+  browser: "safari",
+  os: "macos",
+  utm_source: null,
+  utm_medium: null,
+  utm_campaign: null,
+  duration_ms: null,
+  fcp: null,
+  lcp: null,
+  cls: null,
+  fid: null,
+  inp: null,
+  ttfb: null,
+  dom_load: null,
+  load_complete: null,
+  ...overrides
+});
+
+function insertAnalytics(overrides: Record<string, unknown>): void {
+  const values = row(overrides);
+  analyticsDb
+    .prepare(VISITOR_ANALYTICS_INSERT)
+    .run(...(VISITOR_ANALYTICS_COLUMNS.map((column) => values[column]) as never[]));
+
+  // `created_at` is not in VISITOR_ANALYTICS_COLUMNS (it defaults to now), so
+  // the window each row belongs to has to be set after the insert.
+  if (values.created_at) {
+    analyticsDb
+      .prepare(`UPDATE VisitorAnalytics SET created_at = ? WHERE id = ?`)
+      .run(values.created_at as string, values.id as string);
+  }
+}
+
+// Inside the current window for NOW - 7 days: 2026-10-22 16:00 → 2026-10-29 16:00.
+const THIS_WEEK = "2026-10-27 10:00:00";
+// Inside the previous window: 2026-10-15 16:00 → 2026-10-22 16:00.
+const LAST_WEEK = "2026-10-18 10:00:00";
+
+beforeEach(() => {
+  analyticsDb = new Database(":memory:");
+  analyticsDb.run(VISITOR_ANALYTICS_DDL);
+  nookDb = new Database(":memory:");
+  for (const ddl of NOOK_DDL) nookDb.run(ddl);
+  conns = { analytics: adapter(analyticsDb), nook: adapter(nookDb) };
+});
+
+describe("windowsFor", () => {
+  it("puts the previous window directly before the current one", () => {
+    const windows = windowsFor(NOW, 7);
+    expect(windows.current).toEqual({
+      start: "2026-10-22 16:00:00",
+      end: "2026-10-29 16:00:00"
+    });
+    expect(windows.previous).toEqual({
+      start: "2026-10-15 16:00:00",
+      end: "2026-10-22 16:00:00"
+    });
+  });
+});
+
+describe("readFunnel", () => {
+  it("counts each stage inside its window and nothing outside it", async () => {
+    // Page views count; API calls do not.
+    insertAnalytics({ path: "/", created_at: THIS_WEEK });
+    insertAnalytics({ path: "/downloads", created_at: THIS_WEEK });
+    insertAnalytics({ path: "/api/trpc/anything", created_at: THIS_WEEK });
+    insertAnalytics({ path: "/", created_at: LAST_WEEK });
+
+    // The merged download label, click and served alike.
+    insertAnalytics({ path: NOOK_DOWNLOAD_PATH, created_at: THIS_WEEK });
+    insertAnalytics({ path: NOOK_DOWNLOAD_PATH, created_at: THIS_WEEK });
+
+    // Checkout page doors, including the legacy /nook/checkout path.
+    insertAnalytics({ path: "/checkout", created_at: THIS_WEEK });
+    insertAnalytics({ path: "/nook/checkout", created_at: THIS_WEEK });
+
+    // The licence DB stores ISO-8601 with milliseconds.
+    nookDb
+      .prepare(`INSERT INTO trials (fingerprint, started_at) VALUES (?, ?)`)
+      .run("fp-1", "2026-10-28T20:28:46.806Z");
+    nookDb
+      .prepare(`INSERT INTO trials (fingerprint, started_at) VALUES (?, ?)`)
+      .run("fp-old", "2026-08-26T19:26:12.791Z");
+    nookDb
+      .prepare(
+        `INSERT INTO licenses (id, key, email, stripe_session_id, created_at)
+         VALUES (?, ?, ?, ?, ?)`
+      )
+      .run("lic-1", "NOOK-1", "buyer@example.com", "cs_1", "2026-10-25T12:00:00.000Z");
+    nookDb
+      .prepare(
+        `INSERT INTO activations (id, license_id, device_fingerprint, device_name, activated_at)
+         VALUES (?, ?, ?, ?, ?)`
+      )
+      .run("act-1", "lic-1", "device-1", "Hermes", "2026-10-25T12:05:00.000Z");
+
+    const window = windowsFor(NOW, 7).current;
+    const funnel = await readFunnel(conns, window);
+
+    // "/checkout" and "/nook/checkout" are page views too, so they land in
+    // both the visit count and the checkout count.
+    expect(funnel).toEqual({
+      visit: 4,
+      download: 2,
+      trial: 1,
+      checkout: 2,
+      purchase: 1,
+      activation: 1
+    });
+  });
+
+  it("reports zeros against an empty database", async () => {
+    const window = windowsFor(NOW, 7).current;
+    expect(await readFunnel(conns, window)).toEqual({
+      visit: 0,
+      download: 0,
+      trial: 0,
+      checkout: 0,
+      purchase: 0,
+      activation: 0
+    });
+  });
+});
+
+describe("readTraffic", () => {
+  it("separates loopback and automation from browser traffic", async () => {
+    insertAnalytics({
+      path: NOOK_DOWNLOAD_PATH,
+      ip_address: "127.0.0.1",
+      user_agent: "curl/8.7.1",
+      created_at: THIS_WEEK
+    });
+    insertAnalytics({
+      path: NOOK_DOWNLOAD_PATH,
+      ip_address: "::1",
+      user_agent: "The Nook/0.13.4 Sparkle/2.9.6",
+      created_at: THIS_WEEK
+    });
+    insertAnalytics({
+      path: NOOK_DOWNLOAD_PATH,
+      ip_address: "203.0.113.9",
+      user_agent: "Mozilla/5.0 (Macintosh) Safari/605.1.15",
+      created_at: THIS_WEEK
+    });
+    insertAnalytics({ path: "/", ip_address: "203.0.113.9", created_at: THIS_WEEK });
+
+    const traffic = await readTraffic(conns, windowsFor(NOW, 7).current);
+
+    expect(traffic).toEqual({
+      analyticsRows: 4,
+      loopbackRows: 2,
+      allTimeRows: 4,
+      allTimeAddressedRows: 4,
+      allTimeLoopbackRows: 2,
+      downloadRows: 3,
+      downloadLoopbackRows: 2,
+      downloadNonBrowserRows: 2
+    });
+  });
+});
+
+describe("readCampaigns", () => {
+  it("groups tagged rows, excludes untagged, and orders by volume", async () => {
+    insertAnalytics({
+      path: "/",
+      utm_source: "hn",
+      utm_medium: "post",
+      utm_campaign: "launch",
+      created_at: THIS_WEEK
+    });
+    insertAnalytics({
+      path: "/",
+      utm_source: "hn",
+      utm_medium: "post",
+      utm_campaign: "launch",
+      created_at: THIS_WEEK
+    });
+    insertAnalytics({
+      path: "/",
+      utm_source: "r_macapps",
+      utm_campaign: "week2",
+      created_at: THIS_WEEK
+    });
+    insertAnalytics({ path: "/", created_at: THIS_WEEK });
+
+    const campaigns = await readCampaigns(conns.analytics, windowsFor(NOW, 7).current);
+
+    expect(campaigns).toEqual([
+      { source: "hn", medium: "post", campaign: "launch", count: 2 },
+      { source: "r_macapps", medium: null, campaign: "week2", count: 1 }
+    ]);
+  });
+
+  it("caps the list at ten rows", async () => {
+    for (let i = 0; i < 12; i += 1) {
+      insertAnalytics({
+        path: "/",
+        utm_source: `source-${i}`,
+        created_at: THIS_WEEK
+      });
+    }
+
+    const campaigns = await readCampaigns(conns.analytics, windowsFor(NOW, 7).current);
+    expect(campaigns.length).toBe(10);
+  });
+});
+
+describe("pickMover", () => {
+  const base: FunnelCounts = {
+    visit: 0,
+    download: 0,
+    trial: 0,
+    checkout: 0,
+    purchase: 0,
+    activation: 0
+  };
+
+  it("picks the stage with the largest absolute change", () => {
+    const mover = pickMover(
+      { ...base, visit: 61, download: 156, trial: 2 },
+      { ...base, visit: 56 }
+    );
+    expect(mover).toEqual({
+      key: "download",
+      label: "download click → DMG served (one label)",
+      now: 156,
+      before: 0,
+      delta: 156
+    });
+  });
+
+  it("breaks ties toward the earlier stage", () => {
+    const mover = pickMover(
+      { ...base, visit: 5, download: 5 },
+      { ...base, visit: 0, download: 0 }
+    );
+    expect(mover?.key).toBe("visit");
+  });
+
+  it("returns null when nothing moved", () => {
+    expect(pickMover({ ...base, visit: 3 }, { ...base, visit: 3 })).toBeNull();
+  });
+});
+
+describe("getWeeklyReport / renderWeeklyMarkdown", () => {
+  it("reports a week in the agreed stage order with the computed caveats", async () => {
+    insertAnalytics({ path: "/", created_at: THIS_WEEK });
+    insertAnalytics({
+      path: NOOK_DOWNLOAD_PATH,
+      ip_address: "127.0.0.1",
+      user_agent: "curl/8.7.1",
+      created_at: THIS_WEEK
+    });
+    insertAnalytics({
+      path: NOOK_DOWNLOAD_PATH,
+      ip_address: "127.0.0.1",
+      user_agent: "curl/8.7.1",
+      created_at: THIS_WEEK
+    });
+    nookDb
+      .prepare(`INSERT INTO trials (fingerprint, started_at) VALUES (?, ?)`)
+      .run("fp-1", "2026-10-28T20:28:46.806Z");
+
+    const report = await getWeeklyReport(conns, { now: NOW, days: 7 });
+    const markdown = renderWeeklyMarkdown(report);
+
+    expect(report.mover?.key).toBe("download");
+    expect(markdown).toContain(
+      "Window: **2026-10-22 16:00:00 → 2026-10-29 16:00:00 UTC** (7 days)"
+    );
+    expect(markdown).toContain("| visit (page views) | 1 | 0 | +1 |");
+    expect(markdown.indexOf("visit (page views)")).toBeLessThan(
+      markdown.indexOf("download click → DMG served")
+    );
+    expect(markdown.indexOf("download click → DMG served")).toBeLessThan(
+      markdown.indexOf("trial started")
+    );
+    expect(markdown).toContain("**download click → DMG served (one label): 0 → 2 (+2).**");
+    expect(markdown).toContain("2 of 3 rows in the window came from a loopback address");
+    expect(markdown).toContain("Checkout start is not recorded");
+    expect(markdown).toContain("There is no host dimension");
+  });
+
+  it("says nothing moved rather than inventing a winner", async () => {
+    const report = await getWeeklyReport(conns, { now: NOW, days: 7 });
+    const markdown = renderWeeklyMarkdown(report);
+
+    expect(report.mover).toBeNull();
+    expect(markdown).toContain("_Nothing moved: every stage held its previous-week value._");
+    expect(markdown).toContain("_No tagged traffic in the window._");
+  });
+
+  it("rejects a window that is not a positive number of days", async () => {
+    await expect(getWeeklyReport(conns, { now: NOW, days: 0 })).rejects.toThrow(
+      "days must be a positive number"
+    );
+  });
+});
diff --git a/src/server/weekly-metrics.ts b/src/server/weekly-metrics.ts
new file mode 100644
index 0000000..7ab1b72
--- /dev/null
+++ b/src/server/weekly-metrics.ts
@@ -0,0 +1,591 @@
+/**
+ * The weekly funnel reading: `marketing/metrics/weekly.md`'s data half.
+ *
+ * The funnel the marketing cluster agreed on is
+ *
+ *   visit → download click → DMG served → trial started → checkout started
+ *         → purchase → activation
+ *
+ * and this module reads it from the two live databases, plus the campaign
+ * dimension the /analytics page already exposes through
+ * `getAnalyticsSummary.topCampaigns`.
+ *
+ * Two properties matter more than the numbers:
+ *
+ *  - It takes both connections as arguments. `~/server/analytics` imports the
+ *    full server env (Stripe keys, Apple secret, licence key …); the weekly
+ *    job only needs the two databases, and must be runnable from a checkout
+ *    whose `.env` carries nothing else. The SQL here is the same shape as the
+ *    analytics summaries, so the weekly read and the dashboard cannot drift
+ *    into different label sets.
+ *  - Every stage carries what it actually measured. Two of the seven agreed
+ *    stages share one label in production today and a third is only a page-view
+ *    proxy; the report states that next to the number instead of inventing a
+ *    figure (see `renderWeeklyMarkdown`).
+ *
+ * No `~/env`, no `~/server/database`: the caller owns the connections, the
+ * tests own an in-memory SQLite, and the script owns the libsql clients.
+ */
+
+import { DOWNLOAD_PATH_PREFIX } from "~/lib/download-asset";
+
+/** The one asset key the Nook lands under — `downloadPath("thenook")`. */
+export const NOOK_DOWNLOAD_PATH = `${DOWNLOAD_PATH_PREFIX}thenook`;
+
+/** An `execute`-shaped connection: the libsql client and the test adapter both fit. */
+export interface MetricsConn {
+  execute(query: {
+    sql: string;
+    args?: any[];
+  }): Promise<{ rows: unknown[]; rowsAffected?: number }>;
+}
+
+export interface Connections {
+  /** freno.me Turso DB — VisitorAnalytics. */
+  analytics: MetricsConn;
+  /** the-nook Turso DB — trials, licenses, activations. */
+  nook: MetricsConn;
+}
+
+export type StageKey =
+  | "visit"
+  | "download"
+  | "trial"
+  | "checkout"
+  | "purchase"
+  | "activation";
+
+export interface StageDef {
+  key: StageKey;
+  label: string;
+  /** True when the number is a proxy or a merged label, not a clean stage. */
+  approximate: boolean;
+}
+
+/**
+ * The seven agreed stages. `download` deliberately carries two of them: the
+ * door and the file route both write `/api/downloads/thenook`, so a click and
+ * the DMG it fetched are one label in the data (proved in the report's caveats).
+ */
+export const STAGES: StageDef[] = [
+  { key: "visit", label: "visit (page views)", approximate: false },
+  {
+    key: "download",
+    label: "download click → DMG served (one label)",
+    approximate: true
+  },
+  { key: "trial", label: "trial started", approximate: false },
+  {
+    key: "checkout",
+    label: "checkout page visit",
+    approximate: true
+  },
+  { key: "purchase", label: "purchase (licence issued)", approximate: false },
+  { key: "activation", label: "activation", approximate: false }
+];
+
+export interface FunnelCounts {
+  visit: number;
+  download: number;
+  trial: number;
+  checkout: number;
+  purchase: number;
+  activation: number;
+}
+
+export interface CampaignRow {
+  source: string | null;
+  medium: string | null;
+  campaign: string | null;
+  count: number;
+}
+
+/** Traffic-shape facts the report has to state next to the funnel. */
+export interface WindowTraffic {
+  analyticsRows: number;
+  loopbackRows: number;
+  /** All-time row counts, so "every row ever" is a checked claim, not a guess. */
+  allTimeRows: number;
+  allTimeAddressedRows: number;
+  allTimeLoopbackRows: number;
+  downloadRows: number;
+  downloadLoopbackRows: number;
+  downloadNonBrowserRows: number;
+}
+
+export interface Mover {
+  key: StageKey;
+  label: string;
+  now: number;
+  before: number;
+  delta: number;
+}
+
+export interface WeeklyReport {
+  window: { start: string; end: string; days: number };
+  previous: { start: string; end: string };
+  counts: FunnelCounts;
+  previousCounts: FunnelCounts;
+  campaigns: CampaignRow[];
+  taggedRows: number;
+  traffic: WindowTraffic;
+  mover: Mover | null;
+  generatedAt: string;
+}
+
+/** Loopback addresses — every row the live table has ever held. */
+const LOOPBACK = ["127.0.0.1", "::1", "::ffff:127.0.0.1"];
+
+/** SQLite's `datetime()` string, UTC: `YYYY-MM-DD HH:MM:SS`. */
+export function sqlTime(date: Date): string {
+  return date.toISOString().slice(0, 19).replace("T", " ");
+}
+
+export interface Windows {
+  current: { start: string; end: string };
+  previous: { start: string; end: string };
+}
+
+/**
+ * The current window is `[now - days, now)` and the previous one sits directly
+ * before it, so a weekly read always compares like with like. Boundaries are
+ * passed as SQL parameters rather than `datetime('now', …)` so the file a run
+ * writes is reproducible and the two queries cannot straddle a second.
+ */
+export function windowsFor(now: Date, days: number): Windows {
+  const span = days * 24 * 60 * 60 * 1000;
+  const end = now;
+  const start = new Date(end.getTime() - span);
+  const previousEnd = start;
+  const previousStart = new Date(previousEnd.getTime() - span);
+
+  return {
+    current: { start: sqlTime(start), end: sqlTime(end) },
+    previous: { start: sqlTime(previousStart), end: sqlTime(previousEnd) }
+  };
+}
+
+function toNumber(value: unknown): number {
+  if (typeof value === "number") return value;
+  if (typeof value === "bigint") return Number(value);
+  if (typeof value === "string") return Number(value) || 0;
+  return 0;
+}
+
+async function scalar(
+  conn: MetricsConn,
+  sql: string,
+  args: any[]
+): Promise<number> {
+  const result = await conn.execute({ sql, args });
+  const row = result.rows[0] as Record<string, unknown> | undefined;
+  if (!row) return 0;
+  return toNumber(Object.values(row)[0]);
+}
+
+async function countInWindow(
+  conn: MetricsConn,
+  sql: string,
+  start: string,
+  end: string
+): Promise<number> {
+  return scalar(conn, sql, [start, end]);
+}
+
+/** One window's funnel. Two databases, one call. */
+export async function readFunnel(
+  conns: Connections,
+  window: { start: string; end: string }
+): Promise<FunnelCounts> {
+  const { analytics, nook } = conns;
+  const { start, end } = window;
+
+  const visit = await countInWindow(
+    analytics,
+    `SELECT COUNT(*) AS n FROM VisitorAnalytics
+     WHERE created_at >= ? AND created_at < ?
+     AND path NOT LIKE '/api/%'`,
+    start,
+    end
+  );
+
+  const download = await scalar(
+    analytics,
+    `SELECT COUNT(*) AS n FROM VisitorAnalytics
+     WHERE created_at >= ? AND created_at < ?
+     AND path = ?`,
+    [start, end, NOOK_DOWNLOAD_PATH]
+  );
+
+  const checkout = await countInWindow(
+    analytics,
+    `SELECT COUNT(*) AS n FROM VisitorAnalytics
+     WHERE created_at >= ? AND created_at < ?
+     AND (path LIKE '/checkout%' OR path LIKE '/nook/checkout%')`,
+    start,
+    end
+  );
+
+  // The licence DB stores ISO-8601 (`2026-10-28T20:28:46.806Z`); the analytics
+  // DB stores `YYYY-MM-DD HH:MM:SS`. `datetime()` normalises both sides so a
+  // boundary seconds apart cannot include or drop a row on string comparison.
+  const trial = await scalar(
+    nook,
+    `SELECT COUNT(*) AS n FROM trials
+     WHERE datetime(started_at) >= datetime(?) AND datetime(started_at) < datetime(?)`,
+    [start, end]
+  );
+
+  const purchase = await scalar(
+    nook,
+    `SELECT COUNT(*) AS n FROM licenses
+     WHERE datetime(created_at) >= datetime(?) AND datetime(created_at) < datetime(?)`,
+    [start, end]
+  );
+
+  const activation = await scalar(
+    nook,
+    `SELECT COUNT(*) AS n FROM activations
+     WHERE datetime(activated_at) >= datetime(?) AND datetime(activated_at) < datetime(?)`,
+    [start, end]
+  );
+
+  return {
+    visit,
+    download,
+    trial,
+    checkout,
+    purchase,
+    activation
+  };
+}
+
+/**
+ * Traffic shape for one window: how much of it came from this host, and how
+ * much of the download label was automation. Without these two facts the
+ * numbers read as demand, which they are not.
+ */
+export async function readTraffic(
+  conns: Connections,
+  window: { start: string; end: string }
+): Promise<WindowTraffic> {
+  const { analytics } = conns;
+  const { start, end } = window;
+  const placeholders = LOOPBACK.map(() => "?").join(", ");
+
+  const allTimeRows = await scalar(
+    analytics,
+    `SELECT COUNT(*) AS n FROM VisitorAnalytics`,
+    []
+  );
+
+  const allTimeAddressedRows = await scalar(
+    analytics,
+    `SELECT COUNT(*) AS n FROM VisitorAnalytics WHERE ip_address IS NOT NULL`,
+    []
+  );
+
+  const allTimeLoopbackRows = await scalar(
+    analytics,
+    `SELECT COUNT(*) AS n FROM VisitorAnalytics
+     WHERE ip_address IN (${placeholders})`,
+    [...LOOPBACK]
+  );
+
+  const analyticsRows = await countInWindow(
+    analytics,
+    `SELECT COUNT(*) AS n FROM VisitorAnalytics
+     WHERE created_at >= ? AND created_at < ?`,
+    start,
+    end
+  );
+
+  const loopbackRows = await scalar(
+    analytics,
+    `SELECT COUNT(*) AS n FROM VisitorAnalytics
+     WHERE created_at >= ? AND created_at < ?
+     AND ip_address IN (${placeholders})`,
+    [start, end, ...LOOPBACK]
+  );
+
+  const downloadRows = await scalar(
+    analytics,
+    `SELECT COUNT(*) AS n FROM VisitorAnalytics
+     WHERE created_at >= ? AND created_at < ? AND path = ?`,
+    [start, end, NOOK_DOWNLOAD_PATH]
+  );
+
+  const downloadLoopbackRows = await scalar(
+    analytics,
+    `SELECT COUNT(*) AS n FROM VisitorAnalytics
+     WHERE created_at >= ? AND created_at < ? AND path = ?
+     AND ip_address IN (${placeholders})`,
+    [start, end, NOOK_DOWNLOAD_PATH, ...LOOPBACK]
+  );
+
+  // Anything whose UA is not a browser engine: curl, Sparkle's updater,
+  // link-preview crawlers. A real install click arrives as `Mozilla/5.0 …`.
+  const downloadNonBrowserRows = await scalar(
+    analytics,
+    `SELECT COUNT(*) AS n FROM VisitorAnalytics
+     WHERE created_at >= ? AND created_at < ? AND path = ?
+     AND (user_agent IS NULL OR user_agent NOT LIKE 'Mozilla/%')`,
+    [start, end, NOOK_DOWNLOAD_PATH]
+  );
+
+  return {
+    analyticsRows,
+    loopbackRows,
+    allTimeRows,
+    allTimeAddressedRows,
+    allTimeLoopbackRows,
+    downloadRows,
+    downloadLoopbackRows,
+    downloadNonBrowserRows
+  };
+}
+
+/**
+ * The campaign dimension, grouped exactly as `getAnalyticsSummary.topCampaigns`
+ * groups it: top 10 by volume, untagged rows excluded (the untagged bucket is
+ * a different question and would otherwise swallow the list).
+ */
+export async function readCampaigns(
+  analytics: MetricsConn,
+  window: { start: string; end: string }
+): Promise<CampaignRow[]> {
+  const result = await analytics.execute({
+    sql: `SELECT utm_source, utm_medium, utm_campaign, COUNT(*) AS count
+          FROM VisitorAnalytics
+          WHERE created_at >= ? AND created_at < ?
+          AND (utm_source IS NOT NULL OR utm_medium IS NOT NULL OR utm_campaign IS NOT NULL)
+          GROUP BY utm_source, utm_medium, utm_campaign
+          ORDER BY count DESC
+          LIMIT 10`,
+    args: [window.start, window.end]
+  });
+
+  return result.rows.map((raw) => {
+    const row = raw as Record<string, unknown>;
+    return {
+      source: (row.utm_source as string | null) ?? null,
+      medium: (row.utm_medium as string | null) ?? null,
+      campaign: (row.utm_campaign as string | null) ?? null,
+      count: toNumber(row.count)
+    };
+  });
+}
+
+/**
+ * "The one thing that moved": the stage with the largest absolute change
+ * against the previous window. Ties go to the earlier stage, so a week when
+ * nothing moved returns null rather than a made-up winner.
+ */
+export function pickMover(
+  current: FunnelCounts,
+  previous: FunnelCounts
+): Mover | null {
+  let best: Mover | null = null;
+
+  for (const stage of STAGES) {
+    const delta = current[stage.key] - previous[stage.key];
+    if (delta === 0) continue;
+    if (!best || Math.abs(delta) > Math.abs(best.delta)) {
+      best = {
+        key: stage.key,
+        label: stage.label,
+        now: current[stage.key],
+        before: previous[stage.key],
+        delta
+      };
+    }
+  }
+
+  return best;
+}
+
+export interface ReportOptions {
+  /** End of the current window; defaults to the wall clock. */
+  now?: Date;
+  /** Window length in days; defaults to 7. */
+  days?: number;
+}
+
+/** Read everything `.md` needs, in one call. */
+export async function getWeeklyReport(
+  conns: Connections,
+  options: ReportOptions = {}
+): Promise<WeeklyReport> {
+  const days = options.days ?? 7;
+  if (!Number.isFinite(days) || days <= 0) {
+    throw new Error(`days must be a positive number, got ${days}`);
+  }
+
+  const now = options.now ?? new Date();
+  const windows = windowsFor(now, days);
+
+  const [counts, previousCounts, traffic, campaigns] = await Promise.all([
+    readFunnel(conns, windows.current),
+    readFunnel(conns, windows.previous),
+    readTraffic(conns, windows.current),
+    readCampaigns(conns.analytics, windows.current)
+  ]);
+
+  return {
+    window: { ...windows.current, days },
+    previous: windows.previous,
+    counts,
+    previousCounts,
+    campaigns,
+    taggedRows: campaigns.reduce((sum, row) => sum + row.count, 0),
+    traffic,
+    mover: pickMover(counts, previousCounts),
+    generatedAt: now.toISOString().replace(/\.\d{3}Z$/, "Z")
+  };
+}
+
+function cell(value: string | null): string {
+  return value === null || value === "" ? "—" : value;
+}
+
+function signed(value: number): string {
+  if (value === 0) return "0";
+  return value > 0 ? `+${value}` : `−${Math.abs(value)}`;
+}
+
+/**
+ * Render the weekly file. Interpretation lives in the CMO's read; this renderer
+ * only states what the data is, what moved, and what the numbers cannot say.
+ * The Gaps section is not boilerplate: each bullet is computed from the window
+ * it describes, so it empties itself if the underlying hole is ever fixed.
+ */
+export function renderWeeklyMarkdown(report: WeeklyReport): string {
+  const { counts, previousCounts, traffic } = report;
+  const lines: string[] = [];
+
+  lines.push("# Weekly funnel snapshot");
+  lines.push("");
+  lines.push(
+    `Window: **${report.window.start} → ${report.window.end} UTC** (${report.window.days} days). ` +
+      `Previous: ${report.previous.start} → ${report.previous.end} UTC.`
+  );
+  lines.push("");
+  lines.push(
+    "Generated by `bun --env-file=.env scripts/weekly-metrics.ts`; regenerated " +
+      "weekly, never hand-edited. The analysis is the CMO's."
+  );
+  lines.push("");
+
+  lines.push("## Funnel");
+  lines.push("");
+  lines.push("| Stage | This week | Last week | Change |");
+  lines.push("|---|---:|---:|---:|");
+  for (const stage of STAGES) {
+    const now = counts[stage.key];
+    const before = previousCounts[stage.key];
+    const label = stage.approximate ? `${stage.label} †` : stage.label;
+    lines.push(`| ${label} | ${now} | ${before} | ${signed(now - before)} |`);
+  }
+  lines.push("");
+
+  lines.push("## Campaigns");
+  lines.push("");
+  if (report.campaigns.length === 0) {
+    lines.push("_No tagged traffic in the window._");
+  } else {
+    lines.push(
+      "Top 10 by volume, untagged excluded — the same grouping " +
+        "`getAnalyticsSummary.topCampaigns` returns."
+    );
+    lines.push("");
+    lines.push("| Source | Medium | Campaign | Rows |");
+    lines.push("|---|---|---|---:|");
+    for (const row of report.campaigns) {
+      lines.push(
+        `| ${cell(row.source)} | ${cell(row.medium)} | ${cell(row.campaign)} | ${row.count} |`
+      );
+    }
+  }
+  lines.push("");
+  lines.push(
+    `${report.taggedRows} of ${traffic.analyticsRows} rows in the window carry ` +
+      `campaign tags; the rest are untagged and therefore unattributed.`
+  );
+  lines.push("");
+
+  lines.push("## The one thing that moved");
+  lines.push("");
+  if (!report.mover) {
+    lines.push("_Nothing moved: every stage held its previous-week value._");
+  } else {
+    const mover = report.mover;
+    lines.push(
+      `**${mover.label}: ${mover.before} → ${mover.now} (${signed(mover.delta)}).**`
+    );
+  }
+  lines.push("");
+
+  lines.push("## Before acting on these numbers");
+  lines.push("");
+
+  if (traffic.analyticsRows > 0 && traffic.loopbackRows > 0) {
+    lines.push(
+      `- **${traffic.loopbackRows} of ${traffic.analyticsRows} rows in the window came from a loopback address** ` +
+        `(127.0.0.1 / ::1)` +
+        (traffic.allTimeAddressedRows > 0 &&
+        traffic.allTimeAddressedRows === traffic.allTimeLoopbackRows
+          ? `; every one of the ${traffic.allTimeAddressedRows} addressed rows the table ` +
+            `has ever held is loopback (${traffic.allTimeRows - traffic.allTimeAddressedRows} carry no address)`
+          : `; across the table's history, ${traffic.allTimeLoopbackRows} of ` +
+            `${traffic.allTimeAddressedRows} addressed rows are loopback`) +
+        `. Either this host is the only audience, or the app sits behind a local proxy ` +
+        `and \`getRequestIP\` records the proxy, not the visitor. Either way the address ` +
+        `identifies nobody — "unique visitors" collapses to one host and per-channel ` +
+        `reach cannot be read from it.`
+    );
+  }
+
+  if (traffic.downloadRows > 0) {
+    lines.push(
+      `- **The download stage is one label, not two.** The landing-door route and the file ` +
+        `route that serves the DMG both write \`${NOOK_DOWNLOAD_PATH}\`, so ` +
+        `"download click → DMG served" cannot be split: one served click writes two rows, ` +
+        `a click that fails to resolve writes one, and a Sparkle update writes one. ` +
+        `Of this window's ${traffic.downloadRows} download rows, ` +
+        `${traffic.downloadLoopbackRows} are loopback and ` +
+        `${traffic.downloadNonBrowserRows} are not browser user agents (curl, Sparkle, ` +
+        `link-preview crawlers).`
+    );
+  }
+
+  lines.push(
+    `- **Checkout start is not recorded.** \`POST /api/the-nook/checkout\` — the call that ` +
+      `actually creates the Stripe session — writes nothing to analytics; the only trace is ` +
+      `the /checkout page view reported above, which is a page, not a started checkout.`
+  );
+
+  lines.push(
+    `- **There is no host dimension.** \`VisitorAnalytics\` records a path, not the site, so ` +
+      `the Nook's landing page (\`/\` on nook.freno.me) is the same row as freno.me's root. ` +
+      `"visit" above is site-wide page views, not Nook visits.`
+  );
+
+  lines.push(
+    `- **No conversion rate before the cohort matures.** Trial→paid belongs to the mature ` +
+      `Day 28–35 read (FRE-197); a ratio from a partial cohort is not a metric.`
+  );
+  lines.push("");
+
+  lines.push(
+    "† Proxy or merged label — see *Before acting on these numbers* above."
+  );
+  lines.push("");
+  lines.push("## Sources");
+  lines.push("");
+  lines.push("- `VisitorAnalytics` (freno.me Turso DB) — visits, downloads, campaigns.");
+  lines.push("- `trials`, `licenses`, `activations` (the-nook Turso DB) — the paid funnel.");
+  lines.push(`- Generated ${report.generatedAt}.`);
+  lines.push("");
+
+  return lines.join("\n");
+}