diff --git a/trios/agent-server/apps/server/src/api/routes/queen-public-leaderboard.ts b/trios/agent-server/apps/server/src/api/routes/queen-public-leaderboard.ts
index 27b35b41b1..728462d22a 100644
--- a/trios/agent-server/apps/server/src/api/routes/queen-public-leaderboard.ts
+++ b/trios/agent-server/apps/server/src/api/routes/queen-public-leaderboard.ts
@@ -21,16 +21,27 @@ import { createQueenPool } from '../../lib/db/queen-pool'
 import { logger } from '../../lib/logger'
 import { leaderboard } from '../services/queen-leaderboard'
 
-/** The window, in days. A month covers the swarm's memory of its own turns. */
-const DEFAULT_DAYS = 30
-const MAX_DAYS = 90
+/**
+ * ALL TIME BY DEFAULT. `?days=N` narrows it.
+ *
+ * This answered for thirty days until 2026-09-23, which was the wrong default
+ * for a record of who carried the swarm: a lender whose lanes worked hard last
+ * month and rested this one read as having done nothing, and the board quietly
+ * shrank as time passed rather than growing with the work.
+ */
+const MAX_DAYS = 3650
 
 export function createQueenPublicLeaderboardRoute() {
   return new Hono().get('/', async (c) => {
-    const asked = Number(c.req.query('days'))
-    const days = Number.isFinite(asked)
-      ? Math.min(MAX_DAYS, Math.max(1, Math.trunc(asked)))
-      : DEFAULT_DAYS
+    const raw = c.req.query('days')
+    const asked = Number(raw)
+    // No `days` at all means the whole record; a `days` that is not a number is
+    // a mistake in the request rather than a request for everything, so it is
+    // treated as absent only when it was absent.
+    const days =
+      raw === undefined || !Number.isFinite(asked)
+        ? null
+        : Math.min(MAX_DAYS, Math.max(1, Math.trunc(asked)))
     const url = process.env.DATABASE_URL
     if (!url) return c.json({ error: 'No database configured' }, 503)
     try {
diff --git a/trios/agent-server/apps/server/src/api/services/queen-leaderboard.ts b/trios/agent-server/apps/server/src/api/services/queen-leaderboard.ts
index b5cc563a1a..41ff3cddac 100644
--- a/trios/agent-server/apps/server/src/api/services/queen-leaderboard.ts
+++ b/trios/agent-server/apps/server/src/api/services/queen-leaderboard.ts
@@ -148,20 +148,35 @@ export function rank(
  * the archive is where the turns before it live; leaving it out counted the
  * last attempt of each issue and called it the swarm's whole history.
  */
-export async function keyWork(pool: Pool, days = 30): Promise<KeyWork[]> {
+export async function keyWork(
+  pool: Pool,
+  days: number | null = null,
+): Promise<KeyWork[]> {
+  // ALL TIME IS THE DEFAULT, and `days` narrows it.
+  //
+  // A thirty-day window was the first shape of this and it was the wrong one:
+  // the board is a record of who carried the swarm, and a record that forgets
+  // last month tells a lender their work stopped counting. It also shrinks on
+  // its own - a lane that worked hard in August and stopped simply vanished,
+  // which reads as "did nothing" rather than "did this, earlier".
+  //
+  // `null` means no time predicate at all rather than a very large number of
+  // days, so the query has nothing to be off-by-one about, and the archive's
+  // own rows decide how far back the answer goes.
+  const windowed = days !== null
   const { rows } = await pool.query(
     `WITH turns AS (
        SELECT key_index, review_state, dispatched_at, finished_at
          FROM queen_dispatch
-        WHERE dispatched_at > now() - ($1::integer * interval '1 day')
+        ${windowed ? "WHERE dispatched_at > now() - ($1::integer * interval '1 day')" : ''}
        UNION ALL
        SELECT (snapshot->>'key_index')::integer,
               snapshot->>'review_state',
               (snapshot->>'dispatched_at')::timestamptz,
               (snapshot->>'finished_at')::timestamptz
          FROM queen_dispatch_history
-        WHERE archived_at > now() - ($1::integer * interval '1 day')
-          AND snapshot->>'key_index' ~ '^[0-9]+$'
+        WHERE snapshot->>'key_index' ~ '^[0-9]+$'
+          ${windowed ? "AND archived_at > now() - ($1::integer * interval '1 day')" : ''}
      )
      SELECT key_index,
             count(*) FILTER (WHERE review_state = 'accept') AS accepted,
@@ -175,7 +190,7 @@ export async function keyWork(pool: Pool, days = 30): Promise<KeyWork[]> {
       WHERE key_index IS NOT NULL
       GROUP BY key_index
       ORDER BY key_index`,
-    [days],
+    windowed ? [days] : [],
   )
   return rows.map((row) => ({
     keyIndex: Number(row.key_index),
@@ -186,14 +201,18 @@ export async function keyWork(pool: Pool, days = 30): Promise<KeyWork[]> {
 }
 
 export interface Leaderboard {
-  days: number
+  /** The window in days, or null for the whole record. */
+  days: number | null
   measuredAt: string
   /** What one accepted issue and one bee-hour are worth, so the page can say so. */
   scoring: { acceptedXp: number; hourXp: number }
   contributors: Contributor[]
 }
 
-export async function leaderboard(pool: Pool, days = 30): Promise<Leaderboard> {
+export async function leaderboard(
+  pool: Pool,
+  days: number | null = null,
+): Promise<Leaderboard> {
   const work = await keyWork(pool, days)
   return {
     days,
diff --git a/trios/agent-server/apps/server/tests/api/queen-leaderboard.test.ts b/trios/agent-server/apps/server/tests/api/queen-leaderboard.test.ts
index 726df20f1c..a5ca3d9887 100644
--- a/trios/agent-server/apps/server/tests/api/queen-leaderboard.test.ts
+++ b/trios/agent-server/apps/server/tests/api/queen-leaderboard.test.ts
@@ -1,9 +1,12 @@
 import { describe, expect, it } from 'bun:test'
+import type { Pool } from 'pg'
+
 import {
   ACCEPTED_XP,
   githubLoginOf,
   HOUR_XP,
   type KeyWork,
+  keyWork,
   parseOwners,
   rank,
   xpFor,
@@ -112,6 +115,44 @@ describe('the score', () => {
     expect(row.claimed).toBe(true)
   })
 
+  /**
+   * The window is the one branch here that SQL decides rather than TypeScript,
+   * so it is pinned by what the query actually says. A fake pool is enough:
+   * the question is whether a time predicate is written and whether a parameter
+   * is passed, and both are visible without a database.
+   */
+  describe('the window', () => {
+    const spy = () => {
+      const seen: { text: string; params: unknown[] } = { text: '', params: [] }
+      const pool = {
+        query: (text: string, params: unknown[]) => {
+          seen.text = text
+          seen.params = params
+          return Promise.resolve({ rows: [] })
+        },
+      } as unknown as Pool
+      return { pool, seen }
+    }
+
+    it('asks for the whole record by default, with no time predicate at all', async () => {
+      const { pool, seen } = spy()
+      await keyWork(pool)
+      expect(seen.text).not.toContain('interval')
+      expect(seen.params).toEqual([])
+      // The archive still keeps its own guard, which is not about time.
+      expect(seen.text).toContain("snapshot->>'key_index' ~ ")
+    })
+
+    it('narrows both halves when days is given, and passes it once', async () => {
+      const { pool, seen } = spy()
+      await keyWork(pool, 30)
+      expect(seen.params).toEqual([30])
+      // Both the live table and the archive, or the answer is half-windowed.
+      expect(seen.text).toContain('dispatched_at > now()')
+      expect(seen.text).toContain('archived_at > now()')
+    })
+  })
+
   it('gives an unclaimed lane no handle at all', () => {
     const [row] = rank([lane(7, 1, 1, 0)], {})
     expect(row.name).toBe('key #7')