fix(admin): prefer non-anonymized map locations

.gitea/workflows/release.yml

@@ -7,7 +7,6 @@ on:
 
 permissions:
   contents: write
-  packages: write
 
 jobs:
   release:
@@ -116,9 +115,9 @@ jobs:
             apt-get install -y docker-ce-cli
           fi
 
-      - name: Log in to Gitea container registry
+      - name: Log in to Docker Hub
         if: steps.release.outputs.created == 'true'
-        run: echo "${{ secrets.CONTAINER_REGISTRY_TOKEN }}" | docker login git.garvis.dev -u "${{ secrets.REGISTRY_USERNAME }}" --password-stdin
+        run: echo "${{ secrets.DOCKERHUB_TOKEN }}" | docker login -u "${{ secrets.DOCKERHUB_USERNAME }}" --password-stdin
 
       - name: Build and push web image
         if: steps.release.outputs.created == 'true'
@@ -129,9 +128,9 @@ jobs:
             --platform linux/amd64 \
             --target runner \
             --build-arg VERSION="$VERSION" \
-            -t "git.garvis.dev/dmg/minecraft-account-manager:${VERSION}" \
+            -t "dmgarvis/minecraft-account-manager:${VERSION}" \
             .
-          docker push "git.garvis.dev/dmg/minecraft-account-manager:${VERSION}"
+          docker push "dmgarvis/minecraft-account-manager:${VERSION}"
 
       - name: Build and push Discord bot image
         if: steps.release.outputs.created == 'true'
@@ -142,9 +141,9 @@ jobs:
             --platform linux/amd64 \
             --target bot \
             --build-arg VERSION="$VERSION" \
-            -t "git.garvis.dev/dmg/minecraft-account-manager-bot:${VERSION}" \
+            -t "dmgarvis/minecraft-account-manager-bot:${VERSION}" \
             .
-          docker push "git.garvis.dev/dmg/minecraft-account-manager-bot:${VERSION}"
+          docker push "dmgarvis/minecraft-account-manager-bot:${VERSION}"
 
       - name: Build and push migration image
         if: steps.release.outputs.created == 'true'
@@ -155,9 +154,9 @@ jobs:
             --platform linux/amd64 \
             --target migrate \
             --build-arg VERSION="$VERSION" \
-            -t "git.garvis.dev/dmg/minecraft-account-manager-migrate:${VERSION}" \
+            -t "dmgarvis/minecraft-account-manager-migrate:${VERSION}" \
             .
-          docker push "git.garvis.dev/dmg/minecraft-account-manager-migrate:${VERSION}"
+          docker push "dmgarvis/minecraft-account-manager-migrate:${VERSION}"
 
       - name: Create Gitea release and upload Velocity JAR
         if: steps.release.outputs.created == 'true'

Dockerfile

@@ -1,6 +1,6 @@
 # syntax=docker/dockerfile:1
 
-FROM node:22-alpine AS dependencies
+FROM node:22-alpine AS manifests
 WORKDIR /app
 RUN apk add --no-cache libc6-compat
 
@@ -13,8 +13,16 @@ COPY packages/database/package.json ./packages/database/package.json
 COPY packages/logging/package.json ./packages/logging/package.json
 COPY packages/minecraft/package.json ./packages/minecraft/package.json
 COPY packages/network/package.json ./packages/network/package.json
+
+FROM manifests AS dependencies
 RUN npm ci
 
+FROM manifests AS bot-dependencies
+RUN npm ci --omit=dev --workspace @minecraft-account-manager/discord-bot
+
+FROM manifests AS migration-dependencies
+RUN npm ci --omit=dev --workspace @minecraft-account-manager/database
+
 FROM dependencies AS builder
 COPY . .
 RUN npm run build --workspace @minecraft-account-manager/web
@@ -36,7 +44,7 @@ USER app
 EXPOSE 3000
 CMD ["node", "apps/web/server.js"]
 
-FROM dependencies AS bot
+FROM bot-dependencies AS bot
 ARG VERSION=development
 LABEL org.opencontainers.image.title="Minecraft Account Manager Discord Bot" \
       org.opencontainers.image.version="${VERSION}" \
@@ -51,7 +59,7 @@ COPY --chown=app:app packages ./packages
 USER app
 CMD ["npm", "run", "start", "--workspace", "@minecraft-account-manager/discord-bot"]
 
-FROM dependencies AS migrate
+FROM migration-dependencies AS migrate
 ARG VERSION=development
 LABEL org.opencontainers.image.title="Minecraft Account Manager Migrations" \
       org.opencontainers.image.version="${VERSION}" \

README.md

@@ -77,11 +77,12 @@ The token is displayed once and stored only as a SHA-256 hash.
 - PostgreSQL and Drizzle ORM
 - Keycloak OIDC for admin access with the `minecraft-account-manager-admin` role
 - Admin user search, account management, event exploration, DAU and confirmed-connection metrics, toggleable Natural Earth/OpenStreetMap user-location views, and automatic Discord nickname synchronization
-- Exclusive group admission: unassigned users fall back to protected `everyone`, and administrators manage effective membership, access, and VPN/proxy/Tor exceptions through confirmed group workflows
+- Exclusive group admission: unassigned users fall back to protected `everyone`, and administrators manage effective membership, access, recurring UTC login windows, and VPN/proxy/Tor exceptions through confirmed group workflows
 - Deployment-managed Discord guild ID and invite URL
 - discord.js bot with `/register` and `/account`
 - Java Edition online-mode accounts only
-- Velocity admission checks are fail closed
+- Velocity admission checks are fail closed; disabled group access overrides recurring schedules, which are evaluated only at login
+- Static denial-message templates support validated player/group variables and next scheduled UTC window guidance
 - ProxyCheck.io geolocation and VPN/proxy/Tor detection with a 48-hour PostgreSQL cache and group-scoped game-connection exceptions
 
 See [`docs/architecture.md`](docs/architecture.md) for trust boundaries and service responsibilities, [`docs/api-errors.md`](docs/api-errors.md) for the RFC 9457 API error contract, and [`docs/security-review.md`](docs/security-review.md) for implemented controls and production requirements, and [`docs/accessibility.md`](docs/accessibility.md) for the WCAG-oriented interface review.

apps/discord-bot/package.json

@@ -16,10 +16,10 @@
     "@minecraft-account-manager/logging": "*",
     "discord.js": "^14.25.1",
     "dotenv": "^17.2.3",
-    "drizzle-orm": "^0.45.1"
+    "drizzle-orm": "^0.45.1",
+    "tsx": "^4.21.0"
   },
   "devDependencies": {
-    "tsx": "^4.21.0",
     "typescript": "^5.9.3"
   }
 }

apps/web/src/app/admin/(console)/groups/[groupId]/page.tsx

@@ -1,4 +1,4 @@
-import { groups, minecraftAccounts, userGroupMemberships, users } from "@minecraft-account-manager/database";
+import { groupAccessWindows, groups, minecraftAccounts, userGroupMemberships, users } from "@minecraft-account-manager/database";
 import { and, asc, desc, eq, isNull, sql } from "drizzle-orm";
 import type { ReactNode } from "react";
 import Link from "next/link";
@@ -6,16 +6,18 @@ import { notFound } from "next/navigation";
 import { AdminModalForm } from "@/components/admin-modal-form";
 import { AdminUserTable } from "@/components/admin-user-table";
 import { GroupPolicyControl } from "@/components/group-policy-control";
+import { GroupScheduleEditor, GroupScheduleSummary } from "@/components/group-schedule-editor";
 import { db } from "@/lib/database";
 import { isEffectiveGroupMember } from "@/lib/group-management";
 import { assignUserGroupFromRegistry } from "../../users/actions";
-import { deleteGroup, setGroupAccess, setGroupAnonymizedNetworkAccess, updateGroupDetails } from "../actions";
+import { deleteGroup, replaceGroupSchedule, setGroupAccess, setGroupAnonymizedNetworkAccess, updateGroupDetails } from "../actions";
 
 const savedMessages: Record<string, string> = {
   created: "Group created.",
   details: "Group details updated.",
   access: "Minecraft access policy updated.",
   "network-access": "VPN, proxy, and Tor policy updated.",
+  schedule: "Weekly access schedule updated.",
   group: "Member group updated.",
 };
 
@@ -23,6 +25,7 @@ const errorMessages: Record<string, string> = {
   "invalid-group": "Enter a valid name and a description of no more than 500 characters.",
   "duplicate-group": "A group with that name already exists.",
   "invalid-group-assignment": "The user or destination group no longer exists. No membership change was applied.",
+  "invalid-schedule": "Use valid, non-overlapping weekly access windows. Start and end cannot be identical.",
 };
 
 export const dynamic = "force-dynamic";
@@ -39,7 +42,7 @@ export default async function GroupPage({
   const [group] = await db.select().from(groups).where(eq(groups.id, groupId)).limit(1);
   if (!group) notFound();
 
-  const [allUsers, allGroups, memberships] = await Promise.all([
+  const [allUsers, allGroups, memberships, accessWindows] = await Promise.all([
     db.select({
       id: users.id,
       firstName: users.firstName,
@@ -65,6 +68,11 @@ export default async function GroupPage({
       .from(groups).orderBy(desc(groups.isDefault), asc(groups.name)),
     db.select({ userId: userGroupMemberships.userId, groupId: userGroupMemberships.groupId })
       .from(userGroupMemberships),
+    db.select({
+      startMinuteOfWeek: groupAccessWindows.startMinuteOfWeek,
+      endMinuteOfWeek: groupAccessWindows.endMinuteOfWeek,
+    }).from(groupAccessWindows).where(eq(groupAccessWindows.groupId, group.id))
+      .orderBy(groupAccessWindows.startMinuteOfWeek),
   ]);
   const assignmentByUser = Object.fromEntries(memberships.map((membership) => [membership.userId, membership.groupId]));
   const memberUsers = allUsers.filter((user) => isEffectiveGroupMember(user.id, assignmentByUser, group));
@@ -101,8 +109,17 @@ export default async function GroupPage({
       <section aria-labelledby="group-policy-heading" className="mt-10 border border-line bg-panel p-6 shadow-[6px_6px_0_var(--color-shadow)]">
         <div className="border-b border-line pb-4"><p className="font-mono text-[9px] font-bold uppercase tracking-widest text-muted">Admission controls</p><h2 className="mt-2 font-display text-3xl font-black uppercase" id="group-policy-heading">Group policies</h2></div>
         <div className="mt-6 grid gap-6 sm:grid-cols-2">
-          <PolicyDetail description="Controls whether members can connect to Minecraft." label="Minecraft access"><GroupPolicyControl action={setGroupAccess} enabled={group.accessEnabled} groupId={group.id} groupName={group.name} memberCount={memberUsers.length} policy="Minecraft access" returnLocation="detail" /></PolicyDetail>
-          <PolicyDetail description="Allows confirmed VPN, proxy, and Tor connections." label="VPN / proxy / Tor"><GroupPolicyControl action={setGroupAnonymizedNetworkAccess} enabled={group.anonymizedNetworksAllowed} groupId={group.id} groupName={group.name} memberCount={memberUsers.length} policy="VPN / proxy / Tor" returnLocation="detail" /></PolicyDetail>
+          <PolicyDetail description="Controls whether members can connect to Minecraft. Disabled access always overrides the schedule." label="Minecraft access"><GroupPolicyControl action={setGroupAccess} enabled={group.accessEnabled} groupId={group.id} groupName={group.name} memberCount={memberUsers.length} policy="Minecraft access" returnLocation="detail" /></PolicyDetail>
+          <PolicyDetail description="Allows confirmed VPN, proxy, and Tor connections after access and schedule checks pass." label="VPN / proxy / Tor"><GroupPolicyControl action={setGroupAnonymizedNetworkAccess} enabled={group.anonymizedNetworksAllowed} groupId={group.id} groupName={group.name} memberCount={memberUsers.length} policy="VPN / proxy / Tor" returnLocation="detail" /></PolicyDetail>
+        </div>
+        <div className="mt-7 scroll-mt-6 border-t border-line pt-6" id="group-schedule">
+          <div className="flex flex-col gap-5 sm:flex-row sm:items-start sm:justify-between">
+            <div className="max-w-2xl"><h3 className="font-mono text-xs font-bold uppercase">Weekly access schedule</h3><p className="mt-2 text-xs leading-5 text-muted">When Minecraft access is enabled, members may log in only during these recurring UTC windows. Existing sessions are not disconnected when a window ends.</p><div className="mt-4"><GroupScheduleSummary windows={accessWindows} /></div></div>
+            <AdminModalForm action={replaceGroupSchedule} description={`Replace the complete weekly access schedule for ${group.name}. Minecraft access must still be enabled.`} submitLabel="Save schedule" title={`Schedule ${group.name}`} triggerClassName="shrink-0 border border-ink px-4 py-3 font-mono text-[10px] font-bold uppercase tracking-wider" triggerLabel="Edit schedule">
+              <input name="groupId" type="hidden" value={group.id} />
+              <GroupScheduleEditor windows={accessWindows} />
+            </AdminModalForm>
+          </div>
         </div>
       </section>
 

apps/web/src/app/admin/(console)/groups/actions.schedule.test.ts

@@ -0,0 +1,98 @@
+import { beforeEach, describe, expect, it, vi } from "vitest";
+
+const actionState = vi.hoisted(() => ({
+  selected: [] as unknown[][],
+  inserted: [] as unknown[],
+  deleted: 0,
+  authorized: 0,
+  failAudit: false,
+}));
+
+vi.mock("@/lib/auth/require-admin", () => ({
+  requireAdminSession: async () => {
+    actionState.authorized += 1;
+    return { email: "admin@example.test", name: "Admin" };
+  },
+}));
+
+vi.mock("next/headers", () => ({ headers: async () => new Headers() }));
+vi.mock("next/navigation", () => ({
+  redirect: (path: string) => {
+    throw new Error(`REDIRECT:${path}`);
+  },
+}));
+
+vi.mock("@/lib/database", () => {
+  function selection(response: unknown[]) {
+    const chain: Record<string, unknown> = {};
+    for (const method of ["from", "where", "orderBy"]) chain[method] = () => chain;
+    chain.limit = () => Promise.resolve(response);
+    chain.then = (resolve: (value: unknown[]) => unknown, reject: (reason: unknown) => unknown) =>
+      Promise.resolve(response).then(resolve, reject);
+    return chain;
+  }
+  const tx = {
+    execute: async () => undefined,
+    select: () => selection(actionState.selected.shift() ?? []),
+    delete: () => ({ where: async () => { actionState.deleted += 1; } }),
+    insert: () => ({
+      values: async (value: unknown) => {
+        if (actionState.failAudit && !Array.isArray(value)) throw new Error("audit unavailable");
+        actionState.inserted.push(value);
+      },
+    }),
+  };
+  return { db: { transaction: async (callback: (transaction: typeof tx) => Promise<unknown>) => callback(tx) } };
+});
+
+import { replaceGroupSchedule } from "./actions";
+
+function scheduleForm() {
+  const formData = new FormData();
+  formData.set("groupId", "11111111-1111-4111-8111-111111111111");
+  formData.append("startMinuteOfWeek", "6960");
+  formData.append("endMinuteOfWeek", "7200");
+  return formData;
+}
+
+describe("replaceGroupSchedule", () => {
+  beforeEach(() => {
+    actionState.selected = [
+      [{ id: "11111111-1111-4111-8111-111111111111", name: "Friday friends" }],
+      [{ startMinuteOfWeek: 480, endMinuteOfWeek: 540 }],
+    ];
+    actionState.inserted = [];
+    actionState.deleted = 0;
+    actionState.authorized = 0;
+    actionState.failAudit = false;
+  });
+
+  it("reauthorizes and replaces all windows with an audit in one transaction", async () => {
+    await expect(replaceGroupSchedule(scheduleForm())).rejects.toThrow("REDIRECT:/admin/groups/11111111-1111-4111-8111-111111111111?saved=schedule");
+    expect(actionState.authorized).toBe(1);
+    expect(actionState.deleted).toBe(1);
+    expect(actionState.inserted[0]).toEqual([{
+      groupId: "11111111-1111-4111-8111-111111111111",
+      startMinuteOfWeek: 6960,
+      endMinuteOfWeek: 7200,
+    }]);
+    expect(actionState.inserted[1]).toEqual(expect.objectContaining({
+      type: "games.minecraft.account-manager.group.schedule-updated",
+      data: expect.objectContaining({
+        previousWindows: [{ startMinuteOfWeek: 480, endMinuteOfWeek: 540 }],
+        windows: [{ startMinuteOfWeek: 6960, endMinuteOfWeek: 7200 }],
+        adminEmail: "admin@example.test",
+      }),
+    }));
+  });
+
+  it("does not report success when the atomic audit write fails", async () => {
+    actionState.failAudit = true;
+    await expect(replaceGroupSchedule(scheduleForm())).rejects.toThrow("audit unavailable");
+    expect(actionState.inserted).toEqual([[{
+      groupId: "11111111-1111-4111-8111-111111111111",
+      startMinuteOfWeek: 6960,
+      endMinuteOfWeek: 7200,
+    }]]);
+  });
+});

apps/web/src/app/admin/(console)/groups/actions.ts

@@ -1,7 +1,7 @@
 "use server";
 
 import { randomUUID } from "node:crypto";
-import { events, groups, userGroupMemberships } from "@minecraft-account-manager/database";
+import { events, groupAccessWindows, groups, userGroupMemberships } from "@minecraft-account-manager/database";
 import { getClientIp } from "@minecraft-account-manager/network";
 import { and, eq, ne, sql } from "drizzle-orm";
 import { headers } from "next/headers";
@@ -9,6 +9,7 @@ import { redirect } from "next/navigation";
 import { requireAdminSession } from "@/lib/auth/require-admin";
 import { db } from "@/lib/database";
 import { editableGroupName, groupSlug, validateGroupDetails } from "@/lib/group-management";
+import { parseScheduleWindows } from "@/lib/group-schedule";
 
 const UUID_PATTERN = /^[0-9a-f]{8}-[0-9a-f]{4}-[1-5][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/i;
 
@@ -175,6 +176,41 @@ export async function setGroupAnonymizedNetworkAccess(formData: FormData) {
   return updateGroupPolicy(formData, "anonymized-networks");
 }
 
+export async function replaceGroupSchedule(formData: FormData) {
+  const admin = await requireAdminSession();
+  const groupId = String(formData.get("groupId") ?? "");
+  const windows = parseScheduleWindows(formData);
+  if (!UUID_PATTERN.test(groupId) || !windows) redirect(groupPath(groupId, "error=invalid-schedule"));
+  const ipAddress = await auditContext();
+
+  const updated = await db.transaction(async (tx) => {
+    await tx.execute(sql`select ${groups.id} from ${groups} where ${groups.id} = ${groupId} for update`);
+    const [group] = await tx.select({ id: groups.id, name: groups.name }).from(groups)
+      .where(eq(groups.id, groupId)).limit(1);
+    if (!group) return null;
+    const previous = await tx.select({
+      startMinuteOfWeek: groupAccessWindows.startMinuteOfWeek,
+      endMinuteOfWeek: groupAccessWindows.endMinuteOfWeek,
+    }).from(groupAccessWindows).where(eq(groupAccessWindows.groupId, group.id));
+    await tx.delete(groupAccessWindows).where(eq(groupAccessWindows.groupId, group.id));
+    if (windows.length) {
+      await tx.insert(groupAccessWindows).values(windows.map((window) => ({ ...window, groupId: group.id })));
+    }
+    await tx.insert(events).values({
+      id: randomUUID(),
+      source: "/web/admin",
+      type: "games.minecraft.account-manager.group.schedule-updated",
+      subject: `group/${group.id}`,
+      time: new Date(),
+      data: auditData(admin, { name: group.name, previousWindows: previous, windows }),
+      ipAddress: ipAddress ?? null,
+    });
+    return group;
+  });
+  if (!updated) redirect("/admin/groups?error=unknown-group");
+  redirect(groupPath(updated.id, "saved=schedule"));
+}
+
 export async function deleteGroup(formData: FormData) {
   const admin = await requireAdminSession();
   const groupId = String(formData.get("groupId") ?? "");

apps/web/src/app/admin/(console)/groups/page.tsx

@@ -1,10 +1,11 @@
-import { groups, userGroupMemberships, users } from "@minecraft-account-manager/database";
+import { groupAccessWindows, groups, userGroupMemberships, users } from "@minecraft-account-manager/database";
 import { asc, count, desc } from "drizzle-orm";
 import Link from "next/link";
 import { AdminModalForm } from "@/components/admin-modal-form";
 import { GroupPolicyControl } from "@/components/group-policy-control";
 import { db } from "@/lib/database";
 import { effectiveGroupMemberCount } from "@/lib/group-management";
+import { groupScheduleStatus } from "@/lib/group-schedule";
 import { createGroup, setGroupAccess, setGroupAnonymizedNetworkAccess } from "./actions";
 
 const errors: Record<string, string> = {
@@ -26,11 +27,15 @@ export const dynamic = "force-dynamic";
 
 export default async function GroupsPage({ searchParams }: { searchParams: Promise<{ error?: string; saved?: string }> }) {
   const query = await searchParams;
-  const [allGroups, memberships, [registeredUsers]] = await Promise.all([
+  const [allGroups, memberships, [registeredUsers], scheduleCounts] = await Promise.all([
     db.select().from(groups).orderBy(desc(groups.isDefault), asc(groups.name)),
     db.select({ groupId: userGroupMemberships.groupId }).from(userGroupMemberships),
     db.select({ count: count() }).from(users),
+    db.select({ groupId: groupAccessWindows.groupId, count: count() })
+      .from(groupAccessWindows)
+      .groupBy(groupAccessWindows.groupId),
   ]);
+  const scheduleCountByGroup = new Map(scheduleCounts.map((schedule) => [schedule.groupId, Number(schedule.count)]));
   return (
     <main className="mx-auto max-w-6xl px-6 py-14">
       <header className="flex flex-col gap-6 border-b border-line pb-8 sm:flex-row sm:items-end sm:justify-between">
@@ -60,10 +65,10 @@ export default async function GroupsPage({ searchParams }: { searchParams: Promi
       {query.saved && <p className="mt-7 border-l-2 border-signal bg-panel px-5 py-4 text-sm" role="status">{savedMessages[query.saved] ?? "Group updated."}</p>}
 
       <div className="mt-9 overflow-x-auto border border-line bg-panel shadow-[8px_8px_0_var(--color-shadow)]">
-        <table className="w-full min-w-[760px] border-collapse text-left">
+        <table className="w-full min-w-[880px] border-collapse text-left">
           <caption className="sr-only">Access groups and their effective policies</caption>
           <thead className="border-b border-line font-mono text-[10px] uppercase tracking-widest text-muted">
-            <tr><th className="p-4" scope="col">Name</th><th className="p-4" scope="col">Minecraft access</th><th className="p-4" scope="col">VPN access</th><th className="p-4 text-right" scope="col">Users</th></tr>
+            <tr><th className="p-4" scope="col">Name</th><th className="p-4" scope="col">Minecraft access</th><th className="p-4" scope="col">Schedule</th><th className="p-4" scope="col">VPN access</th><th className="p-4 text-right" scope="col">Users</th></tr>
           </thead>
           <tbody className="divide-y divide-line">
             {allGroups.map((group) => {
@@ -72,6 +77,7 @@ export default async function GroupsPage({ searchParams }: { searchParams: Promi
                 memberships.map((membership) => membership.groupId),
                 group,
               );
+              const scheduleStatus = groupScheduleStatus(scheduleCountByGroup.get(group.id) ?? 0);
               return (
                 <tr className="transition-colors hover:bg-canvas/60" key={group.id}>
                   <th className="p-4 text-left" scope="row">
@@ -79,6 +85,7 @@ export default async function GroupsPage({ searchParams }: { searchParams: Promi
                     {group.isDefault && <span className="ml-3 bg-ink px-2 py-1 font-mono text-[8px] font-bold uppercase text-canvas">Default</span>}
                   </th>
                   <td className="p-4"><GroupPolicyControl action={setGroupAccess} enabled={group.accessEnabled} groupId={group.id} groupName={group.name} memberCount={memberCount} policy="Minecraft access" returnLocation="list" /></td>
+                  <td className="p-4"><Link aria-label={`${scheduleStatus}. Edit schedule for ${group.name}`} className={`font-mono text-[10px] font-bold uppercase underline underline-offset-4 ${scheduleStatus === "Unrestricted" ? "text-muted" : "text-accent"}`} href={`/admin/groups/${group.id}#group-schedule`}>{scheduleStatus}</Link></td>
                   <td className="p-4"><GroupPolicyControl action={setGroupAnonymizedNetworkAccess} enabled={group.anonymizedNetworksAllowed} groupId={group.id} groupName={group.name} memberCount={memberCount} policy="VPN / proxy / Tor" returnLocation="list" /></td>
                   <td className="p-4 text-right font-mono text-sm font-bold">{memberCount}</td>
                 </tr>

apps/web/src/app/admin/(console)/page.tsx

@@ -5,7 +5,7 @@ import Link from "next/link";
 import { UserWorldMap, type UserMapLocation } from "@/components/user-world-map";
 import { db } from "@/lib/database";
 import { fillDailySeries, mergeRiskActivity, type DailyCount } from "@/lib/admin-metrics";
-import { parseUserLocation, parseUserNetwork } from "@/lib/user-location-map";
+import { MAP_LOCATION_CLASSIFICATIONS, parseUserLocation, parseUserNetwork } from "@/lib/user-location-map";
 
 export const dynamic = "force-dynamic";
 
@@ -58,6 +58,7 @@ export default async function AdminDashboardPage() {
       ))
       .where(and(
         isNotNull(ipObservations.userId),
+        inArray(ipIntelligence.classification, MAP_LOCATION_CLASSIFICATIONS),
         sql`case when jsonb_typeof(${ipIntelligence.rawResponse}->'location'->'latitude') = 'number' then (${ipIntelligence.rawResponse}->'location'->>'latitude')::double precision between -90 and 90 else false end`,
         sql`case when jsonb_typeof(${ipIntelligence.rawResponse}->'location'->'longitude') = 'number' then (${ipIntelligence.rawResponse}->'location'->>'longitude')::double precision between -180 and 180 else false end`,
       ))

apps/web/src/app/admin/(console)/settings/page.tsx

@@ -17,6 +17,7 @@ export default async function SettingsPage({
     registrationMessage: settings?.registrationMessage ?? DEFAULT_ADMISSION_MESSAGES.registrationMessage,
     groupAccessDeniedMessage: settings?.groupAccessDeniedMessage ?? DEFAULT_ADMISSION_MESSAGES.groupAccessDeniedMessage,
     vpnDeniedMessage: settings?.vpnDeniedMessage ?? DEFAULT_ADMISSION_MESSAGES.vpnDeniedMessage,
+    scheduledAccessDeniedMessage: settings?.scheduledAccessDeniedMessage ?? DEFAULT_ADMISSION_MESSAGES.scheduledAccessDeniedMessage,
   };
   const guildId = process.env.DISCORD_GUILD_ID?.trim();
   const inviteUrl = process.env.DISCORD_INVITE_URL?.trim();
@@ -40,9 +41,10 @@ export default async function SettingsPage({
 
           <fieldset className="space-y-7">
             <legend className="font-display text-2xl font-black uppercase">Minecraft denial messages</legend>
-            <p className="text-sm leading-6 text-muted">Each plain-text message is returned for one admission outcome. Messages must be between 10 and 500 characters.</p>
-            <AdmissionMessageField description="Shown when the Minecraft identity is not registered." label="Registration required" name="registrationMessage" value={messages.registrationMessage} />
+            <p className="text-sm leading-6 text-muted">Each plain-text template is returned for one admission outcome. Messages must be between 10 and 500 characters. Registration, group, and network templates support <code>{"{player}"}</code> and <code>{"{group}"}</code>.</p>
+            <AdmissionMessageField description="Shown when the Minecraft identity is not registered. The unresolved group is everyone." label="Registration required" name="registrationMessage" value={messages.registrationMessage} />
             <AdmissionMessageField description="Shown when the effective group has Minecraft access disabled." label="Group access disabled" name="groupAccessDeniedMessage" value={messages.groupAccessDeniedMessage} />
+            <AdmissionMessageField description="Shown outside a scheduled access window. Also supports {next_start} and {next_end}; generated times explicitly use UTC." label="Scheduled access denied" name="scheduledAccessDeniedMessage" value={messages.scheduledAccessDeniedMessage} />
             <AdmissionMessageField description="Shown for VPN, proxy, or Tor connections when the effective group has no exception." label="VPN, proxy, or Tor denied" name="vpnDeniedMessage" value={messages.vpnDeniedMessage} />
           </fieldset>
           <button className="mt-8 border border-ink bg-ink px-6 py-3 font-mono text-xs font-bold uppercase tracking-[0.16em] text-canvas hover:bg-accent" type="submit">Save configuration</button>
@@ -60,7 +62,7 @@ function AdmissionMessageField({
 }: {
   description: string;
   label: string;
-  name: "registrationMessage" | "groupAccessDeniedMessage" | "vpnDeniedMessage";
+  name: "registrationMessage" | "groupAccessDeniedMessage" | "scheduledAccessDeniedMessage" | "vpnDeniedMessage";
   value: string;
 }) {
   const descriptionId = `${name}-description`;

apps/web/src/app/api/velocity/access/route.schedule.test.ts

@@ -0,0 +1,136 @@
+import { hashToken } from "@minecraft-account-manager/auth";
+import { beforeEach, describe, expect, it, vi } from "vitest";
+
+const databaseState = vi.hoisted(() => ({
+  responses: [] as unknown[][],
+  inserted: [] as Array<Record<string, unknown>>,
+  isolationLevel: "",
+}));
+
+vi.mock("@/lib/database", () => {
+  function selection(response: unknown[]) {
+    const chain: Record<string, unknown> = {};
+    for (const method of ["from", "where", "innerJoin", "leftJoin", "orderBy"]) {
+      chain[method] = () => chain;
+    }
+    chain.limit = () => Promise.resolve(response);
+    chain.then = (resolve: (value: unknown[]) => unknown, reject: (reason: unknown) => unknown) =>
+      Promise.resolve(response).then(resolve, reject);
+    return chain;
+  }
+  const tx = {
+    select: () => selection(databaseState.responses.shift() ?? []),
+    insert: () => ({
+      values: (value: Record<string, unknown>) => {
+        databaseState.inserted.push(value);
+        return Promise.resolve();
+      },
+    }),
+    delete: () => ({ where: () => Promise.resolve() }),
+    update: () => ({ set: () => ({ where: () => Promise.resolve() }) }),
+  };
+  return {
+    db: {
+      select: () => selection(databaseState.responses.shift() ?? []),
+      transaction: async (callback: (transaction: typeof tx) => Promise<unknown>, options: { isolationLevel?: string }) => {
+        databaseState.isolationLevel = options?.isolationLevel ?? "";
+        return callback(tx);
+      },
+    },
+  };
+});
+
+vi.mock("@/lib/ip-intelligence", () => ({
+  getIpIntelligence: async () => ({ classification: "clear" }),
+  toAuditIpData: () => ({ classification: "clear" }),
+}));
+
+vi.mock("@/lib/logger", () => ({ logger: { error: vi.fn() } }));
+
+import { POST } from "./route";
+
+const messages = {
+  registrationMessage: "Register {player} in {group}.",
+  groupAccessDeniedMessage: "Disabled {player} in {group}.",
+  vpnDeniedMessage: "Network denied for {player} in {group}.",
+  scheduledAccessDeniedMessage: "Scheduled {player} in {group}: {next_start} / {next_end}.",
+};
+
+function utcMinuteOfWeek(value: Date) {
+  return ((value.getUTCDay() + 6) % 7) * 1440 + value.getUTCHours() * 60 + value.getUTCMinutes();
+}
+
+function normalized(value: number) {
+  return (value + 10080) % 10080;
+}
+
+function request() {
+  return new Request("http://localhost/api/velocity/access", {
+    method: "POST",
+    headers: { authorization: "Bearer route-secret", "content-type": "application/json" },
+    body: JSON.stringify({
+      requestId: "11111111-1111-4111-8111-111111111111",
+      serverId: "velocity-main",
+      minecraftUuid: "0123456789abcdef0123456789abcdef",
+      username: "AlexMC",
+      ipAddress: "203.0.113.10",
+      occurredAt: new Date().toISOString(),
+    }),
+  });
+}
+
+function arrange(group: { accessEnabled: boolean; anonymizedNetworksAllowed: boolean }, windows: Array<{ startMinuteOfWeek: number; endMinuteOfWeek: number }>) {
+  databaseState.responses = [
+    [{ secretHash: hashToken("route-secret") }],
+    [messages],
+    [{ id: "account-id", userId: "user-id", minecraftUuid: "0123456789abcdef0123456789abcdef", username: "AlexMC" }],
+    [{ id: "group-id", name: "Friday friends", ...group }],
+    [{ id: "everyone-id", name: "everyone", accessEnabled: false, anonymizedNetworksAllowed: false }],
+    windows,
+  ];
+}
+
+describe("Velocity scheduled admission integration", () => {
+  beforeEach(() => {
+    databaseState.responses = [];
+    databaseState.inserted = [];
+    databaseState.isolationLevel = "";
+  });
+
+  it("loads effective-group windows and returns a rendered schedule denial", async () => {
+    const minute = utcMinuteOfWeek(new Date());
+    arrange(
+      { accessEnabled: true, anonymizedNetworksAllowed: false },
+      [{ startMinuteOfWeek: normalized(minute + 60), endMinuteOfWeek: normalized(minute + 120) }],
+    );
+
+    const response = await POST(request());
+    const body = await response.json();
+    expect(body.allowed).toBe(false);
+    expect(body.message).toMatch(/^Scheduled AlexMC in Friday friends: .* UTC \/ .* UTC\.$/);
+    expect(databaseState.isolationLevel).toBe("repeatable read");
+    expect(databaseState.inserted).toContainEqual(expect.objectContaining({
+      type: "games.minecraft.account-manager.game.login.denied",
+      data: expect.objectContaining({ reason: "schedule_disallowed", accessGroup: "Friday friends" }),
+    }));
+  });
+
+  it("fails closed for malformed persisted windows while disabled access retains precedence", async () => {
+    const malformed = [
+      { startMinuteOfWeek: 100, endMinuteOfWeek: 200 },
+      { startMinuteOfWeek: 150, endMinuteOfWeek: 250 },
+    ];
+    arrange({ accessEnabled: true, anonymizedNetworksAllowed: true }, malformed);
+    expect(await (await POST(request())).json()).toMatchObject({ allowed: false, message: expect.stringContaining("unavailable") });
+    expect(databaseState.inserted).toContainEqual(expect.objectContaining({
+      data: expect.objectContaining({ reason: "schedule_disallowed" }),
+    }));
+
+    databaseState.inserted = [];
+    arrange({ accessEnabled: false, anonymizedNetworksAllowed: true }, malformed);
+    expect(await (await POST(request())).json()).toEqual({ allowed: false, message: "Disabled AlexMC in Friday friends." });
+    expect(databaseState.inserted).toContainEqual(expect.objectContaining({
+      data: expect.objectContaining({ reason: "group_access_disabled" }),
+    }));
+  });
+});

apps/web/src/app/api/velocity/access/route.ts

@@ -1,9 +1,10 @@
 import { randomUUID } from "node:crypto";
-import { gameAdmissionDenialReason, isRequestTimestampFresh, resolveEffectiveGroup, verifyHashedToken } from "@minecraft-account-manager/auth";
+import { isRequestTimestampFresh, resolveEffectiveGroup, verifyHashedToken } from "@minecraft-account-manager/auth";
 import { problemDetails, velocityAccessRequestSchema } from "@minecraft-account-manager/contracts";
 import {
   appSettings,
   events,
+  groupAccessWindows,
   groups,
   ipObservations,
   minecraftAccounts,
@@ -13,9 +14,10 @@ import {
 } from "@minecraft-account-manager/database";
 import { and, eq, isNull, lt, sql } from "drizzle-orm";
 import { NextResponse } from "next/server";
-import { admissionDenialMessage, DEFAULT_ADMISSION_MESSAGES } from "@/lib/admission-settings";
+import { admissionDenialMessage, DEFAULT_ADMISSION_MESSAGES, renderAdmissionMessage } from "@/lib/admission-settings";
 import { db } from "@/lib/database";
 import { isUniqueConstraintViolation } from "@/lib/database-errors";
+import { evaluateRegisteredPlayerAdmission } from "@/lib/game-admission-policy";
 import { getIpIntelligence, toAuditIpData } from "@/lib/ip-intelligence";
 import { logger } from "@/lib/logger";
 import { problemInstance, problemResponse } from "@/lib/problem-response";
@@ -115,10 +117,12 @@ async function handleVelocityAccess(request: Request) {
     registrationMessage: settings?.registrationMessage ?? DEFAULT_ADMISSION_MESSAGES.registrationMessage,
     groupAccessDeniedMessage: settings?.groupAccessDeniedMessage ?? DEFAULT_ADMISSION_MESSAGES.groupAccessDeniedMessage,
     vpnDeniedMessage: settings?.vpnDeniedMessage ?? DEFAULT_ADMISSION_MESSAGES.vpnDeniedMessage,
+    scheduledAccessDeniedMessage: settings?.scheduledAccessDeniedMessage ?? DEFAULT_ADMISSION_MESSAGES.scheduledAccessDeniedMessage,
   };
 
   const intelligence = await getIpIntelligence(input.ipAddress);
   const auditIpData = toAuditIpData(intelligence);
+  const decisionAt = new Date();
 
   const decision = await db.transaction(async (tx) => {
       await tx.delete(pluginRequests).where(lt(pluginRequests.expiresAt, new Date()));
@@ -187,7 +191,13 @@ async function handleVelocityAccess(request: Request) {
           classification: intelligence.classification,
           observedAt: occurredAt,
         });
-        return { allowed: false as const, message: admissionDenialMessage("not_registered", admissionMessages) };
+        return {
+          allowed: false as const,
+          message: renderAdmissionMessage(admissionDenialMessage("not_registered", admissionMessages), {
+            player: input.username,
+            group: "everyone",
+          }),
+        };
       }
 
       const [explicitGroup] = await tx
@@ -202,9 +212,22 @@ async function handleVelocityAccess(request: Request) {
         .where(eq(groups.isDefault, true))
         .limit(1);
       const effectiveGroup = resolveEffectiveGroup(explicitGroup ?? null, defaultGroup ?? null);
-
-      const denialReason = gameAdmissionDenialReason(effectiveGroup ?? null, intelligence.classification);
-      if (denialReason) {
+      const accessWindows = effectiveGroup
+        ? await tx.select({
+            startMinuteOfWeek: groupAccessWindows.startMinuteOfWeek,
+            endMinuteOfWeek: groupAccessWindows.endMinuteOfWeek,
+          }).from(groupAccessWindows).where(eq(groupAccessWindows.groupId, effectiveGroup.id))
+        : [];
+      const policyDecision = evaluateRegisteredPlayerAdmission({
+        group: effectiveGroup ?? null,
+        windows: accessWindows,
+        classification: intelligence.classification,
+        now: decisionAt,
+        player: input.username,
+        messages: admissionMessages,
+      });
+      if (!policyDecision.allowed) {
+        const denialReason = policyDecision.reason;
         await tx.insert(events).values({
           id: randomUUID(),
           source: `/velocity/${input.serverId}`,
@@ -217,6 +240,10 @@ async function handleVelocityAccess(request: Request) {
             reason: denialReason,
             accessGroup: effectiveGroup?.name ?? null,
             accessGroupId: effectiveGroup?.id ?? null,
+            nextScheduleWindow: policyDecision.nextWindow ? {
+              start: policyDecision.nextWindow.start.toISOString(),
+              end: policyDecision.nextWindow.end.toISOString(),
+            } : null,
             ipIntelligence: auditIpData,
           },
           ipAddress: input.ipAddress,
@@ -234,7 +261,7 @@ async function handleVelocityAccess(request: Request) {
         });
         return {
           allowed: false as const,
-          message: admissionDenialMessage(denialReason, admissionMessages),
+          message: policyDecision.message,
         };
       }
 
@@ -297,7 +324,7 @@ async function handleVelocityAccess(request: Request) {
       });
 
       return { allowed: true as const, message: "Account approved." };
-    });
+    }, { isolationLevel: "repeatable read" });
 
   return NextResponse.json(decision);
 }

apps/web/src/components/admin-modal-form.tsx

@@ -29,6 +29,7 @@ export function AdminModalForm({
   const titleId = useId();
   const descriptionId = useId();
   const [submitting, setSubmitting] = useState(false);
+  const [dialogGeneration, setDialogGeneration] = useState(0);
   return (
     <>
       <button
@@ -36,7 +37,10 @@ export function AdminModalForm({
         aria-pressed={triggerPressed}
         className={triggerClassName ?? "font-mono text-[10px] font-bold uppercase underline underline-offset-4"}
         disabled={submitting}
-        onClick={() => dialogRef.current?.showModal()}
+        onClick={() => {
+          setDialogGeneration((generation) => generation + 1);
+          dialogRef.current?.showModal();
+        }}
         type="button"
       >
         {triggerLabel}
@@ -44,7 +48,7 @@ export function AdminModalForm({
       <dialog
         aria-describedby={descriptionId}
         aria-labelledby={titleId}
-        className="admin-modal m-auto w-[min(92vw,36rem)] border border-ink bg-panel p-0 text-ink shadow-[10px_10px_0_var(--color-shadow)] backdrop:bg-ink/70"
+        className="admin-modal m-auto max-h-[90vh] w-[min(92vw,36rem)] overflow-y-auto border border-ink bg-panel p-0 text-ink shadow-[10px_10px_0_var(--color-shadow)] backdrop:bg-ink/70"
         onCancel={(event) => { if (submitting) event.preventDefault(); }}
         ref={dialogRef}
       >
@@ -52,7 +56,7 @@ export function AdminModalForm({
           <p className="font-mono text-[9px] font-bold uppercase tracking-[0.2em] text-accent">Confirm operation</p>
           <h2 className="mt-3 font-display text-3xl font-black uppercase" id={titleId}>{title}</h2>
           <p className="mt-3 text-sm leading-6 text-muted" id={descriptionId}>{description}</p>
-          {children && <div className="mt-6">{children}</div>}
+          {children && <div className="mt-6" key={dialogGeneration}>{children}</div>}
           <ModalActions dialogRef={dialogRef} intent={intent} onPendingChange={setSubmitting} submitLabel={submitLabel} />
         </form>
       </dialog>

apps/web/src/components/group-schedule-editor.test.tsx

@@ -0,0 +1,55 @@
+// @vitest-environment jsdom
+
+import { fireEvent, render, screen, within } from "@testing-library/react";
+import { beforeEach, describe, expect, it } from "vitest";
+import { AdminModalForm } from "./admin-modal-form";
+import { GroupScheduleEditor, GroupScheduleSummary } from "./group-schedule-editor";
+
+beforeEach(() => {
+  HTMLDialogElement.prototype.showModal = function showModal() { this.open = true; };
+  HTMLDialogElement.prototype.close = function close() {
+    this.open = false;
+    this.dispatchEvent(new Event("close"));
+  };
+});
+
+describe("GroupScheduleEditor", () => {
+  it("shows UTC authority, browser-local equivalents, and repeatable windows", () => {
+    const { container } = render(<GroupScheduleEditor windows={[{
+      startMinuteOfWeek: 6960,
+      endMinuteOfWeek: 7199,
+    }]} />);
+
+    expect(screen.getByText(/stored and enforced in UTC/i)).toBeTruthy();
+    expect(screen.getAllByRole("group", { name: /access window/i })).toHaveLength(1);
+    expect(container.querySelectorAll('input[name="startMinuteOfWeek"]')).toHaveLength(1);
+
+    fireEvent.click(screen.getByRole("button", { name: /add window/i }));
+    expect(screen.getAllByRole("group", { name: /access window/i })).toHaveLength(2);
+    expect(container.querySelectorAll('input[name="startMinuteOfWeek"]')).toHaveLength(2);
+
+    fireEvent.click(screen.getAllByRole("button", { name: /remove window/i })[0]!);
+    expect(screen.getAllByRole("group", { name: /access window/i })).toHaveLength(1);
+  });
+
+  it("discards an abandoned draft when its confirmation dialog is reopened", () => {
+    render(<AdminModalForm action={async () => undefined} description="Confirm schedule." submitLabel="Save schedule" title="Schedule group" triggerLabel="Edit schedule"><GroupScheduleEditor windows={[{ startMinuteOfWeek: 6960, endMinuteOfWeek: 7200 }]} /></AdminModalForm>);
+    fireEvent.click(screen.getByRole("button", { name: "Edit schedule" }));
+    const dialog = screen.getByRole("dialog");
+    fireEvent.click(within(dialog).getByRole("button", { name: "Add window" }));
+    expect(within(dialog).getAllByRole("group", { name: /access window/i })).toHaveLength(2);
+    fireEvent.click(within(dialog).getByRole("button", { name: "Cancel" }));
+
+    fireEvent.click(screen.getByRole("button", { name: "Edit schedule" }));
+    expect(within(dialog).getAllByRole("group", { name: /access window/i })).toHaveLength(1);
+  });
+
+  it("summarizes an unrestricted group and configured local equivalents", () => {
+    const { container, rerender } = render(<GroupScheduleSummary windows={[]} />);
+    expect(container.textContent).toMatch(/no schedule restrictions/i);
+
+    rerender(<GroupScheduleSummary windows={[{ startMinuteOfWeek: 6960, endMinuteOfWeek: 7199 }]} />);
+    expect(container.textContent).toMatch(/current browser-local equivalent/i);
+    expect(container.textContent).toContain("Friday 20:00 UTC");
+  });
+});

apps/web/src/components/group-schedule-editor.tsx

@@ -0,0 +1,143 @@
+"use client";
+
+import { useRef, useState, useSyncExternalStore } from "react";
+import {
+  formatWeeklyMinute,
+  localWindowToUtc,
+  utcWindowToLocal,
+  type WeeklyAccessWindow,
+} from "@/lib/group-schedule";
+
+const DAYS = ["Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday"] as const;
+
+interface EditableWindow extends WeeklyAccessWindow {
+  key: number;
+}
+
+function minuteParts(minuteOfWeek: number) {
+  const day = Math.floor(minuteOfWeek / 1440);
+  const minute = minuteOfWeek % 1440;
+  return {
+    day,
+    time: `${String(Math.floor(minute / 60)).padStart(2, "0")}:${String(minute % 60).padStart(2, "0")}`,
+  };
+}
+
+function withDay(minuteOfWeek: number, day: number) {
+  return day * 1440 + (minuteOfWeek % 1440);
+}
+
+function withTime(minuteOfWeek: number, time: string) {
+  const [hour, minute] = time.split(":").map(Number);
+  return Math.floor(minuteOfWeek / 1440) * 1440 + (hour ?? 0) * 60 + (minute ?? 0);
+}
+
+const subscribeToBrowserClock = () => () => undefined;
+
+function useBrowserClock() {
+  const offset = useSyncExternalStore(
+    subscribeToBrowserClock,
+    () => new Date().getTimezoneOffset(),
+    () => 0,
+  );
+  const zone = useSyncExternalStore(
+    subscribeToBrowserClock,
+    () => Intl.DateTimeFormat().resolvedOptions().timeZone || "browser local time",
+    () => "UTC",
+  );
+  return { offset, zone };
+}
+
+export function GroupScheduleEditor({ windows }: { windows: WeeklyAccessWindow[] }) {
+  const { offset, zone } = useBrowserClock();
+  const [editable, setEditable] = useState<EditableWindow[]>(
+    windows.map((window, key) => ({ ...window, key })),
+  );
+  const nextKey = useRef(windows.length);
+
+  function update(key: number, field: "startMinuteOfWeek" | "endMinuteOfWeek", value: number) {
+    setEditable((current) => current.map((window) => {
+      if (window.key !== key) return window;
+      const local = { ...utcWindowToLocal(window, offset), [field]: value };
+      return { ...localWindowToUtc(local, offset), key };
+    }));
+  }
+
+  return (
+    <div className="space-y-5">
+      <p className="text-sm leading-6 text-muted">
+        Schedules are stored and enforced in UTC. The editor shows the current browser-local equivalent in <strong className="text-ink">{zone}</strong>; it may shift when your local daylight-saving offset changes.
+      </p>
+      {!editable.length && <p className="border-l-2 border-signal pl-4 text-sm">No windows means no schedule restrictions while Minecraft access is enabled.</p>}
+      {editable.map((window, index) => {
+        const local = utcWindowToLocal(window, offset);
+        const start = minuteParts(local.startMinuteOfWeek);
+        const end = minuteParts(local.endMinuteOfWeek);
+        return (
+          <fieldset aria-label={`Access window ${index + 1}`} className="border border-line p-4" key={window.key}>
+            <legend className="px-2 font-mono text-[10px] font-bold uppercase tracking-wider">Access window {index + 1}</legend>
+            <div className="grid gap-4 sm:grid-cols-2">
+              <ScheduleBoundary day={start.day} label="Starts" onDay={(day) => update(window.key, "startMinuteOfWeek", withDay(local.startMinuteOfWeek, day))} onTime={(time) => update(window.key, "startMinuteOfWeek", withTime(local.startMinuteOfWeek, time))} time={start.time} />
+              <ScheduleBoundary day={end.day} label="Ends (exclusive)" onDay={(day) => update(window.key, "endMinuteOfWeek", withDay(local.endMinuteOfWeek, day))} onTime={(time) => update(window.key, "endMinuteOfWeek", withTime(local.endMinuteOfWeek, time))} time={end.time} />
+            </div>
+            <input name="startMinuteOfWeek" type="hidden" value={window.startMinuteOfWeek} />
+            <input name="endMinuteOfWeek" type="hidden" value={window.endMinuteOfWeek} />
+            <div className="mt-4 flex flex-wrap items-center justify-between gap-3">
+              <p className="font-mono text-[9px] uppercase text-muted">UTC: {formatWeeklyMinute(window.startMinuteOfWeek)}–{formatWeeklyMinute(window.endMinuteOfWeek)}</p>
+              <button className="font-mono text-[10px] font-bold uppercase text-accent underline underline-offset-4" onClick={() => setEditable((current) => current.filter((item) => item.key !== window.key))} type="button">Remove window {index + 1}</button>
+            </div>
+          </fieldset>
+        );
+      })}
+      <button
+        className="border border-ink px-4 py-2 font-mono text-[10px] font-bold uppercase tracking-wider disabled:cursor-not-allowed disabled:opacity-50"
+        disabled={editable.length >= 50}
+        onClick={() => {
+          const key = nextKey.current++;
+          setEditable((current) => [...current, {
+            key,
+            ...localWindowToUtc({
+              startMinuteOfWeek: 4 * 1440 + 20 * 60,
+              endMinuteOfWeek: 5 * 1440,
+            }, offset),
+          }]);
+        }}
+        type="button"
+      >Add window</button>
+    </div>
+  );
+}
+
+function ScheduleBoundary({ day, label, onDay, onTime, time }: {
+  day: number;
+  label: string;
+  onDay: (day: number) => void;
+  onTime: (time: string) => void;
+  time: string;
+}) {
+  return (
+    <div>
+      <span className="block text-xs font-bold">{label}</span>
+      <div className="mt-2 grid grid-cols-[1fr_auto] gap-2">
+        <label><span className="sr-only">{label} weekday</span><select className="w-full border border-line bg-canvas px-3 py-2 text-sm" onChange={(event) => onDay(Number(event.target.value))} value={day}>{DAYS.map((name, value) => <option key={name} value={value}>{name}</option>)}</select></label>
+        <label><span className="sr-only">{label} time</span><input className="border border-line bg-canvas px-3 py-2 text-sm" onChange={(event) => onTime(event.target.value)} required type="time" value={time} /></label>
+      </div>
+    </div>
+  );
+}
+
+export function GroupScheduleSummary({ windows }: { windows: WeeklyAccessWindow[] }) {
+  const { offset, zone } = useBrowserClock();
+  if (!windows.length) return <p className="text-sm text-muted">No schedule restrictions. Enabled members may attempt to join at any time.</p>;
+  return (
+    <div>
+      <p className="text-xs text-muted">Current browser-local equivalent: {zone}. UTC remains authoritative.</p>
+      <ol className="mt-3 space-y-2">
+        {windows.map((window, index) => {
+          const local = utcWindowToLocal(window, offset);
+          return <li className="border-l-2 border-accent pl-3 text-sm" key={`${window.startMinuteOfWeek}-${window.endMinuteOfWeek}-${index}`}><span className="font-bold">{formatWeeklyMinute(local.startMinuteOfWeek)}–{formatWeeklyMinute(local.endMinuteOfWeek)}</span><span className="mt-1 block font-mono text-[9px] uppercase text-muted">{formatWeeklyMinute(window.startMinuteOfWeek)} UTC–{formatWeeklyMinute(window.endMinuteOfWeek)} UTC</span></li>;
+        })}
+      </ol>
+    </div>
+  );
+}

apps/web/src/components/user-world-map.test.tsx

@@ -44,7 +44,8 @@ describe("UserWorldMap", () => {
     expect(markup).toContain("Alex (AlexMC)");
     expect(markup).toContain("2 users near Mountain View, California, US");
     expect(markup).toMatch(/<text[^>]*>2<\/text>/);
-    expect(markup).toContain('<details class="mt-5 border-t border-line pt-4" id="map-location-list" open="">');
+    expect(markup).toContain('<details class="mt-5 border-t border-line pt-4" id="map-location-list">');
+    expect(markup).not.toContain('id="map-location-list" open');
     expect(markup).toContain("Mountain View, California, US");
     expect(markup).toContain("Comcast Cable Communications, LLC");
     expect(markup).toContain("AS7922");

apps/web/src/components/user-world-map.tsx

@@ -99,7 +99,7 @@ export function UserWorldMap({ locations, unavailableCount }: { locations: UserM
       </MapViewToggle>
       <p className="mt-2 text-right font-mono text-[9px] text-muted">Map boundaries: Natural Earth, public domain</p>
 
-      <details className="mt-5 border-t border-line pt-4" id="map-location-list" open={locationGroups.some((group) => group.count > 1)}>
+      <details className="mt-5 border-t border-line pt-4" id="map-location-list">
         <summary className="w-fit cursor-pointer font-mono text-[10px] font-bold uppercase underline underline-offset-4">View accessible location list</summary>
         <div className="mt-4 overflow-x-auto">
           <table className="w-full min-w-[980px] border-collapse text-left text-xs">

apps/web/src/lib/admission-settings.test.ts

@@ -1,33 +1,50 @@
 import { describe, expect, it } from "vitest";
-import { admissionDenialMessage, DEFAULT_ADMISSION_MESSAGES, parseAdmissionMessages } from "./admission-settings";
+import { admissionDenialMessage, DEFAULT_ADMISSION_MESSAGES, parseAdmissionMessages, renderAdmissionMessage } from "./admission-settings";
 
 describe("admission message settings", () => {
-  it("normalizes three independently configured denial messages", () => {
-    const formData = new FormData();
-    formData.set("registrationMessage", "  Register your account before joining.  ");
-    formData.set("groupAccessDeniedMessage", "This group cannot access the server right now.");
-    formData.set("vpnDeniedMessage", "VPN access requires a host-approved exception.");
+  it("normalizes independently configured denial templates with allowed variables", () => {
+    const formData = validMessages();
+    formData.set("registrationMessage", "  Register {player} before joining {group}.  ");
+    formData.set("scheduledAccessDeniedMessage", "{player}, {group} may join from {next_start} to {next_end}.");
 
     expect(parseAdmissionMessages(formData)).toEqual({
-      registrationMessage: "Register your account before joining.",
-      groupAccessDeniedMessage: "This group cannot access the server right now.",
-      vpnDeniedMessage: "VPN access requires a host-approved exception.",
+      registrationMessage: "Register {player} before joining {group}.",
+      groupAccessDeniedMessage: "{player} cannot access the server with {group}.",
+      vpnDeniedMessage: "VPN access for {player} in {group} requires an exception.",
+      scheduledAccessDeniedMessage: "{player}, {group} may join from {next_start} to {next_end}.",
     });
   });
 
   it("selects the configured message for each admission denial reason", () => {
     expect(admissionDenialMessage("not_registered", DEFAULT_ADMISSION_MESSAGES)).toBe(DEFAULT_ADMISSION_MESSAGES.registrationMessage);
     expect(admissionDenialMessage("group_access_disabled", DEFAULT_ADMISSION_MESSAGES)).toBe(DEFAULT_ADMISSION_MESSAGES.groupAccessDeniedMessage);
+    expect(admissionDenialMessage("schedule_disallowed", DEFAULT_ADMISSION_MESSAGES)).toBe(DEFAULT_ADMISSION_MESSAGES.scheduledAccessDeniedMessage);
     expect(admissionDenialMessage("anonymized_network_disallowed", DEFAULT_ADMISSION_MESSAGES)).toBe(DEFAULT_ADMISSION_MESSAGES.vpnDeniedMessage);
   });
 
-  it("rejects missing, short, overlong, or control-character messages", () => {
-    for (const invalid of ["short", "a".repeat(501), "Denied\nInjected"] as const) {
-      const formData = new FormData();
-      formData.set("registrationMessage", DEFAULT_ADMISSION_MESSAGES.registrationMessage);
-      formData.set("groupAccessDeniedMessage", DEFAULT_ADMISSION_MESSAGES.groupAccessDeniedMessage);
+  it("renders static variables without evaluating expressions", () => {
+    expect(renderAdmissionMessage("{player} uses {group}; next: {next_start}–{next_end}.", {
+      player: "AlexMC",
+      group: "Friday friends",
+      next_start: "2026-08-07 20:00 UTC",
+      next_end: "2026-08-07 23:59 UTC",
+    })).toBe("AlexMC uses Friday friends; next: 2026-08-07 20:00 UTC–2026-08-07 23:59 UTC.");
+  });
+
+  it("rejects missing, short, overlong, control-character, or unsupported-variable messages", () => {
+    for (const invalid of ["short", "a".repeat(501), "Denied\nInjected", "Denied for {next_start}.", "Denied for {unknown}."] as const) {
+      const formData = validMessages();
       formData.set("vpnDeniedMessage", invalid);
       expect(parseAdmissionMessages(formData)).toBeNull();
     }
   });
 });
+
+function validMessages() {
+  const formData = new FormData();
+  formData.set("registrationMessage", "Register {player} before joining {group}.");
+  formData.set("groupAccessDeniedMessage", "{player} cannot access the server with {group}.");
+  formData.set("vpnDeniedMessage", "VPN access for {player} in {group} requires an exception.");
+  formData.set("scheduledAccessDeniedMessage", "{group} may join from {next_start} to {next_end}.");
+  return formData;
+}

apps/web/src/lib/admission-settings.ts

@@ -2,36 +2,53 @@ export interface AdmissionMessages {
   registrationMessage: string;
   groupAccessDeniedMessage: string;
   vpnDeniedMessage: string;
+  scheduledAccessDeniedMessage: string;
 }
 
+export type AdmissionDenialReason =
+  | "not_registered"
+  | "group_access_disabled"
+  | "schedule_disallowed"
+  | "anonymized_network_disallowed";
+
 export const DEFAULT_ADMISSION_MESSAGES: AdmissionMessages = {
   registrationMessage: "Please register your Minecraft account before joining.",
   groupAccessDeniedMessage: "Your account group does not currently have server access. Contact a host if you believe this is a mistake.",
   vpnDeniedMessage: "VPN, proxy, and Tor connections are not allowed. Contact a host to request an exception.",
+  scheduledAccessDeniedMessage: "Your group is only allowed access from {next_start} to {next_end}.",
 } as const;
 
-export function admissionDenialMessage(
-  reason: "not_registered" | "group_access_disabled" | "anonymized_network_disallowed",
-  messages: AdmissionMessages,
-) {
+export function admissionDenialMessage(reason: AdmissionDenialReason, messages: AdmissionMessages) {
   if (reason === "not_registered") return messages.registrationMessage;
   if (reason === "group_access_disabled") return messages.groupAccessDeniedMessage;
+  if (reason === "schedule_disallowed") return messages.scheduledAccessDeniedMessage;
   return messages.vpnDeniedMessage;
 }
 
 const CONTROL_CHARACTERS = /[\u0000-\u001f\u007f]/;
+const TEMPLATE_VARIABLE = /\{([a-z_]+)\}/g;
+const COMMON_VARIABLES = new Set(["player", "group"]);
+const SCHEDULE_VARIABLES = new Set(["player", "group", "next_start", "next_end"]);
 
-function messageValue(formData: FormData, name: string) {
+type MessageName = keyof AdmissionMessages;
+
+function messageValue(formData: FormData, name: MessageName, allowedVariables: Set<string>) {
   const value = String(formData.get(name) ?? "").trim();
-  return value.length >= 10 && value.length <= 500 && !CONTROL_CHARACTERS.test(value)
-    ? value
-    : null;
+  if (value.length < 10 || value.length > 500 || CONTROL_CHARACTERS.test(value)) return null;
+  const withoutVariables = value.replace(TEMPLATE_VARIABLE, (match, variable: string) =>
+    allowedVariables.has(variable) ? "" : match);
+  return /[{}]/.test(withoutVariables) ? null : value;
 }
 
 export function parseAdmissionMessages(formData: FormData) {
-  const registrationMessage = messageValue(formData, "registrationMessage");
-  const groupAccessDeniedMessage = messageValue(formData, "groupAccessDeniedMessage");
-  const vpnDeniedMessage = messageValue(formData, "vpnDeniedMessage");
-  if (!registrationMessage || !groupAccessDeniedMessage || !vpnDeniedMessage) return null;
-  return { registrationMessage, groupAccessDeniedMessage, vpnDeniedMessage };
+  const registrationMessage = messageValue(formData, "registrationMessage", COMMON_VARIABLES);
+  const groupAccessDeniedMessage = messageValue(formData, "groupAccessDeniedMessage", COMMON_VARIABLES);
+  const vpnDeniedMessage = messageValue(formData, "vpnDeniedMessage", COMMON_VARIABLES);
+  const scheduledAccessDeniedMessage = messageValue(formData, "scheduledAccessDeniedMessage", SCHEDULE_VARIABLES);
+  if (!registrationMessage || !groupAccessDeniedMessage || !vpnDeniedMessage || !scheduledAccessDeniedMessage) return null;
+  return { registrationMessage, groupAccessDeniedMessage, vpnDeniedMessage, scheduledAccessDeniedMessage };
+}
+
+export function renderAdmissionMessage(template: string, variables: Record<string, string>) {
+  return template.replace(TEMPLATE_VARIABLE, (match, variable: string) => variables[variable] ?? match);
 }

apps/web/src/lib/game-admission-policy.test.ts

@@ -0,0 +1,61 @@
+import { describe, expect, it } from "vitest";
+import { DEFAULT_ADMISSION_MESSAGES } from "./admission-settings";
+import { evaluateRegisteredPlayerAdmission } from "./game-admission-policy";
+
+const group = {
+  name: "Friday friends",
+  accessEnabled: true,
+  anonymizedNetworksAllowed: false,
+};
+const fridayWindow = { startMinuteOfWeek: 6960, endMinuteOfWeek: 7200 };
+
+describe("registered player admission policy", () => {
+  it("lets disabled Minecraft access override an active schedule", () => {
+    const decision = evaluateRegisteredPlayerAdmission({
+      group: { ...group, accessEnabled: false },
+      windows: [fridayWindow],
+      classification: "clear",
+      now: new Date("2026-08-07T21:00:00Z"),
+      player: "AlexMC",
+      messages: DEFAULT_ADMISSION_MESSAGES,
+    });
+    expect(decision.reason).toBe("group_access_disabled");
+  });
+
+  it("denies an enabled group outside its schedule with the next UTC window", () => {
+    const decision = evaluateRegisteredPlayerAdmission({
+      group,
+      windows: [fridayWindow],
+      classification: "vpn",
+      now: new Date("2026-08-08T01:00:00Z"),
+      player: "AlexMC",
+      messages: {
+        ...DEFAULT_ADMISSION_MESSAGES,
+        scheduledAccessDeniedMessage: "{player} in {group}: {next_start}–{next_end}.",
+      },
+    });
+    expect(decision.reason).toBe("schedule_disallowed");
+    expect(decision.message).toBe("AlexMC in Friday friends: 2026-08-14 20:00 UTC–2026-08-15 00:00 UTC.");
+  });
+
+  it("applies network policy only after group access and schedule pass", () => {
+    const denied = evaluateRegisteredPlayerAdmission({
+      group,
+      windows: [fridayWindow],
+      classification: "vpn",
+      now: new Date("2026-08-07T21:00:00Z"),
+      player: "AlexMC",
+      messages: DEFAULT_ADMISSION_MESSAGES,
+    });
+    expect(denied.reason).toBe("anonymized_network_disallowed");
+
+    expect(evaluateRegisteredPlayerAdmission({
+      group: { ...group, anonymizedNetworksAllowed: true },
+      windows: [fridayWindow],
+      classification: "vpn",
+      now: new Date("2026-08-07T21:00:00Z"),
+      player: "AlexMC",
+      messages: DEFAULT_ADMISSION_MESSAGES,
+    }).allowed).toBe(true);
+  });
+});

apps/web/src/lib/game-admission-policy.ts

@@ -0,0 +1,43 @@
+import { gameAdmissionDenialReason } from "@minecraft-account-manager/auth";
+import {
+  admissionDenialMessage,
+  renderAdmissionMessage,
+  type AdmissionMessages,
+} from "./admission-settings";
+import {
+  evaluateGroupSchedule,
+  formatScheduleInstant,
+  type WeeklyAccessWindow,
+} from "./group-schedule";
+
+interface EffectiveGroupPolicy {
+  name: string;
+  accessEnabled: boolean;
+  anonymizedNetworksAllowed: boolean;
+}
+
+interface RegisteredPlayerAdmissionInput {
+  group: EffectiveGroupPolicy | null;
+  windows: WeeklyAccessWindow[];
+  classification: "unknown" | "clear" | "vpn" | "proxy" | "hosting" | "tor";
+  now: Date;
+  player: string;
+  messages: AdmissionMessages;
+}
+
+export function evaluateRegisteredPlayerAdmission(input: RegisteredPlayerAdmissionInput) {
+  const schedule = evaluateGroupSchedule(input.windows, input.now);
+  const reason = gameAdmissionDenialReason(input.group, input.classification, schedule.allowed);
+  if (!reason) return { allowed: true as const, reason: null, message: null, nextWindow: null };
+  return {
+    allowed: false as const,
+    reason,
+    message: renderAdmissionMessage(admissionDenialMessage(reason, input.messages), {
+      player: input.player,
+      group: input.group?.name ?? "everyone",
+      next_start: schedule.nextWindow ? formatScheduleInstant(schedule.nextWindow.start) : "unavailable",
+      next_end: schedule.nextWindow ? formatScheduleInstant(schedule.nextWindow.end) : "unavailable",
+    }),
+    nextWindow: schedule.nextWindow,
+  };
+}

apps/web/src/lib/group-schedule.test.ts

@@ -0,0 +1,123 @@
+import { describe, expect, it } from "vitest";
+import {
+  evaluateGroupSchedule,
+  groupScheduleStatus,
+  localWindowToUtc,
+  parseScheduleWindows,
+  utcWindowToLocal,
+  type WeeklyAccessWindow,
+} from "./group-schedule";
+
+const fridayEvening: WeeklyAccessWindow = {
+  startMinuteOfWeek: 4 * 24 * 60 + 20 * 60,
+  endMinuteOfWeek: 4 * 24 * 60 + 23 * 60 + 59,
+};
+
+describe("weekly group access schedules", () => {
+  it("summarizes whether a group has configured windows", () => {
+    expect(groupScheduleStatus(0)).toBe("Unrestricted");
+    expect(groupScheduleStatus(1)).toBe("1 window");
+    expect(groupScheduleStatus(3)).toBe("3 windows");
+  });
+
+  it("allows an enabled group at any time when no schedule is configured", () => {
+    expect(evaluateGroupSchedule([], new Date("2026-08-07T19:00:00Z"))).toEqual({
+      allowed: true,
+      nextWindow: null,
+    });
+  });
+
+  it("allows only inside a UTC window and identifies the next window when denied", () => {
+    expect(evaluateGroupSchedule([fridayEvening], new Date("2026-08-07T21:30:00Z")).allowed).toBe(true);
+
+    const denied = evaluateGroupSchedule([fridayEvening], new Date("2026-08-08T01:00:00Z"));
+    expect(denied.allowed).toBe(false);
+    expect(denied.nextWindow).toEqual({
+      start: new Date("2026-08-14T20:00:00.000Z"),
+      end: new Date("2026-08-14T23:59:00.000Z"),
+    });
+  });
+
+  it("uses inclusive starts and exclusive ends across the UTC week boundary", () => {
+    const sundayNight = { startMinuteOfWeek: 6 * 1440 + 23 * 60, endMinuteOfWeek: 2 * 60 };
+    expect(evaluateGroupSchedule([sundayNight], new Date("2026-08-09T23:00:00Z")).allowed).toBe(true);
+    expect(evaluateGroupSchedule([sundayNight], new Date("2026-08-10T01:59:59Z")).allowed).toBe(true);
+    expect(evaluateGroupSchedule([sundayNight], new Date("2026-08-10T02:00:00Z")).allowed).toBe(false);
+  });
+
+  it("selects the earliest upcoming window when several are configured", () => {
+    const mondayMorning = { startMinuteOfWeek: 8 * 60, endMinuteOfWeek: 9 * 60 };
+    const decision = evaluateGroupSchedule(
+      [fridayEvening, mondayMorning],
+      new Date("2026-08-08T01:00:00Z"),
+    );
+    expect(decision.nextWindow?.start).toEqual(new Date("2026-08-10T08:00:00.000Z"));
+    expect(decision.nextWindow?.end).toEqual(new Date("2026-08-10T09:00:00.000Z"));
+  });
+
+  it("fails closed for malformed persisted policy", () => {
+    expect(evaluateGroupSchedule([
+      { startMinuteOfWeek: 100, endMinuteOfWeek: 200 },
+      { startMinuteOfWeek: 150, endMinuteOfWeek: 250 },
+    ], new Date("2026-08-03T02:30:00Z"))).toEqual({ allowed: false, nextWindow: null });
+  });
+
+  it("rejects malformed and overlapping submitted windows", () => {
+    const valid = new FormData();
+    valid.append("startMinuteOfWeek", "6960");
+    valid.append("endMinuteOfWeek", "7199");
+    valid.append("startMinuteOfWeek", "480");
+    valid.append("endMinuteOfWeek", "540");
+    expect(parseScheduleWindows(valid)).toEqual([
+      { startMinuteOfWeek: 480, endMinuteOfWeek: 540 },
+      fridayEvening,
+    ]);
+
+    const overlapping = new FormData();
+    overlapping.append("startMinuteOfWeek", "100");
+    overlapping.append("endMinuteOfWeek", "200");
+    overlapping.append("startMinuteOfWeek", "150");
+    overlapping.append("endMinuteOfWeek", "250");
+    expect(parseScheduleWindows(overlapping)).toBeNull();
+
+    const wrappingOverlap = new FormData();
+    wrappingOverlap.append("startMinuteOfWeek", String(6 * 1440 + 23 * 60));
+    wrappingOverlap.append("endMinuteOfWeek", String(2 * 60));
+    wrappingOverlap.append("startMinuteOfWeek", String(60));
+    wrappingOverlap.append("endMinuteOfWeek", String(3 * 60));
+    expect(parseScheduleWindows(wrappingOverlap)).toBeNull();
+
+    const mismatched = new FormData();
+    mismatched.append("startMinuteOfWeek", "100");
+    expect(parseScheduleWindows(mismatched)).toBeNull();
+
+    const invalid = new FormData();
+    invalid.append("startMinuteOfWeek", "10080");
+    invalid.append("endMinuteOfWeek", "0");
+    expect(parseScheduleWindows(invalid)).toBeNull();
+
+    for (const malformedValue of ["", " ", "+1", "0x10", "1e2", "1.5"]) {
+      const malformed = new FormData();
+      malformed.append("startMinuteOfWeek", malformedValue);
+      malformed.append("endMinuteOfWeek", "2");
+      expect(parseScheduleWindows(malformed)).toBeNull();
+    }
+
+    const tooMany = new FormData();
+    for (let index = 0; index < 51; index += 1) {
+      tooMany.append("startMinuteOfWeek", String(index * 2));
+      tooMany.append("endMinuteOfWeek", String(index * 2 + 1));
+    }
+    expect(parseScheduleWindows(tooMany)).toBeNull();
+  });
+
+  it("converts browser-local weekly values to authoritative UTC and back", () => {
+    const local = { startMinuteOfWeek: 4 * 1440 + 20 * 60, endMinuteOfWeek: 4 * 1440 + 23 * 60 };
+    const utc = localWindowToUtc(local, 420);
+    expect(utc).toEqual({
+      startMinuteOfWeek: 5 * 1440 + 3 * 60,
+      endMinuteOfWeek: 5 * 1440 + 6 * 60,
+    });
+    expect(utcWindowToLocal(utc, 420)).toEqual(local);
+  });
+});

apps/web/src/lib/group-schedule.ts

@@ -0,0 +1,124 @@
+export const MINUTES_PER_WEEK = 7 * 24 * 60;
+const MAX_WINDOWS = 50;
+
+export function groupScheduleStatus(windowCount: number) {
+  if (windowCount <= 0) return "Unrestricted";
+  return `${windowCount} ${windowCount === 1 ? "window" : "windows"}`;
+}
+
+export interface WeeklyAccessWindow {
+  startMinuteOfWeek: number;
+  endMinuteOfWeek: number;
+}
+
+interface ScheduleDecision {
+  allowed: boolean;
+  nextWindow: { start: Date; end: Date } | null;
+}
+
+function normalizedMinute(value: number) {
+  return ((value % MINUTES_PER_WEEK) + MINUTES_PER_WEEK) % MINUTES_PER_WEEK;
+}
+
+function validWindow(window: WeeklyAccessWindow) {
+  return Number.isInteger(window.startMinuteOfWeek)
+    && Number.isInteger(window.endMinuteOfWeek)
+    && window.startMinuteOfWeek >= 0
+    && window.startMinuteOfWeek < MINUTES_PER_WEEK
+    && window.endMinuteOfWeek >= 0
+    && window.endMinuteOfWeek < MINUTES_PER_WEEK
+    && window.startMinuteOfWeek !== window.endMinuteOfWeek;
+}
+
+function segments(window: WeeklyAccessWindow) {
+  return window.endMinuteOfWeek > window.startMinuteOfWeek
+    ? [[window.startMinuteOfWeek, window.endMinuteOfWeek] as const]
+    : [
+        [window.startMinuteOfWeek, MINUTES_PER_WEEK] as const,
+        [0, window.endMinuteOfWeek] as const,
+      ];
+}
+
+export function validateScheduleWindows(windows: WeeklyAccessWindow[]) {
+  if (windows.length > MAX_WINDOWS || windows.some((window) => !validWindow(window))) return null;
+  for (let left = 0; left < windows.length; left += 1) {
+    for (let right = left + 1; right < windows.length; right += 1) {
+      const overlaps = segments(windows[left]!).some(([leftStart, leftEnd]) =>
+        segments(windows[right]!).some(([rightStart, rightEnd]) =>
+          leftStart < rightEnd && rightStart < leftEnd));
+      if (overlaps) return null;
+    }
+  }
+  return [...windows].sort((left, right) => left.startMinuteOfWeek - right.startMinuteOfWeek);
+}
+
+export function parseScheduleWindows(formData: FormData) {
+  const starts = formData.getAll("startMinuteOfWeek").map(String);
+  const ends = formData.getAll("endMinuteOfWeek").map(String);
+  if (starts.length !== ends.length) return null;
+  const decimalInteger = /^(0|[1-9]\d*)$/;
+  if (starts.some((value) => !decimalInteger.test(value)) || ends.some((value) => !decimalInteger.test(value))) {
+    return null;
+  }
+  return validateScheduleWindows(starts.map((start, index) => ({
+    startMinuteOfWeek: Number(start),
+    endMinuteOfWeek: Number(ends[index]),
+  })));
+}
+
+function utcWeekStart(now: Date) {
+  const dayFromMonday = (now.getUTCDay() + 6) % 7;
+  return Date.UTC(now.getUTCFullYear(), now.getUTCMonth(), now.getUTCDate() - dayFromMonday);
+}
+
+function windowDuration(window: WeeklyAccessWindow) {
+  return normalizedMinute(window.endMinuteOfWeek - window.startMinuteOfWeek);
+}
+
+export function evaluateGroupSchedule(windows: WeeklyAccessWindow[], now: Date): ScheduleDecision {
+  if (!windows.length) return { allowed: true, nextWindow: null };
+  const valid = validateScheduleWindows(windows);
+  if (!valid || !Number.isFinite(now.getTime())) return { allowed: false, nextWindow: null };
+
+  const weekStart = utcWeekStart(now);
+  const occurrences = valid.flatMap((window) => [-1, 0, 1].map((weekOffset) => {
+    const start = new Date(weekStart + (weekOffset * MINUTES_PER_WEEK + window.startMinuteOfWeek) * 60_000);
+    const end = new Date(start.getTime() + windowDuration(window) * 60_000);
+    return { start, end };
+  }));
+  if (occurrences.some(({ start, end }) => now >= start && now < end)) {
+    return { allowed: true, nextWindow: null };
+  }
+  const nextWindow = occurrences
+    .filter(({ start }) => start > now)
+    .sort((left, right) => left.start.getTime() - right.start.getTime())[0] ?? null;
+  return { allowed: false, nextWindow };
+}
+
+export function localWindowToUtc(window: WeeklyAccessWindow, browserOffsetMinutes: number) {
+  return {
+    startMinuteOfWeek: normalizedMinute(window.startMinuteOfWeek + browserOffsetMinutes),
+    endMinuteOfWeek: normalizedMinute(window.endMinuteOfWeek + browserOffsetMinutes),
+  };
+}
+
+export function utcWindowToLocal(window: WeeklyAccessWindow, browserOffsetMinutes: number) {
+  return {
+    startMinuteOfWeek: normalizedMinute(window.startMinuteOfWeek - browserOffsetMinutes),
+    endMinuteOfWeek: normalizedMinute(window.endMinuteOfWeek - browserOffsetMinutes),
+  };
+}
+
+const WEEKDAYS = ["Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday"] as const;
+
+export function formatWeeklyMinute(minuteOfWeek: number) {
+  const minute = normalizedMinute(minuteOfWeek);
+  const day = WEEKDAYS[Math.floor(minute / (24 * 60))];
+  const hour = Math.floor((minute % (24 * 60)) / 60);
+  const minuteOfHour = minute % 60;
+  return `${day} ${String(hour).padStart(2, "0")}:${String(minuteOfHour).padStart(2, "0")}`;
+}
+
+export function formatScheduleInstant(value: Date) {
+  return `${value.toISOString().slice(0, 16).replace("T", " ")} UTC`;
+}

apps/web/src/lib/user-location-map.test.ts

@@ -1,7 +1,20 @@
 import { describe, expect, it } from "vitest";
-import { groupMapLocations, parseUserLocation, parseUserNetwork, projectWorldPoint } from "./user-location-map";
+import {
+  MAP_LOCATION_CLASSIFICATIONS,
+  groupMapLocations,
+  parseUserLocation,
+  parseUserNetwork,
+  projectWorldPoint,
+} from "./user-location-map";
 
 describe("user location map", () => {
+  it("allows only clear and hosting observations as map locations", () => {
+    expect(MAP_LOCATION_CLASSIFICATIONS).toEqual(["clear", "hosting"]);
+    expect(MAP_LOCATION_CLASSIFICATIONS).not.toContain("vpn");
+    expect(MAP_LOCATION_CLASSIFICATIONS).not.toContain("proxy");
+    expect(MAP_LOCATION_CLASSIFICATIONS).not.toContain("tor");
+  });
+
   it("extracts a valid approximate location from cached IP intelligence", () => {
     expect(parseUserLocation({
       classification: "clear",

apps/web/src/lib/user-location-map.ts

@@ -1,5 +1,7 @@
 type UnknownMap = Record<string, unknown>;
 
+export const MAP_LOCATION_CLASSIFICATIONS = ["clear", "hosting"] as const;
+
 function objectValue(value: unknown): UnknownMap | null {
   return value && typeof value === "object" && !Array.isArray(value)
     ? value as UnknownMap

design/index.md

@@ -33,6 +33,7 @@ This OKF bundle is the product record for implemented and proposed behavior. Sto
 * [US-017 — Control admission with groups](us-017-group-access.md) - Each user has one effective group that explicitly controls Minecraft access.
 * [US-018 — Monitor community account activity](us-018-admin-dashboard.md) - Administrators review daily users, confirmed connections, locations, denials, and risky networks.
 * [US-019 — Manage groups efficiently](us-019-admin-group-management.md) - Administrators manage group identity, policies, membership, and creation through focused confirmed workflows.
+* [US-020 — Schedule group access in UTC](us-020-scheduled-group-access.md) - Enabled groups may be restricted to recurring weekly UTC windows with static denial-message templates.
 
 # Tracking
 

design/log.md

@@ -1,7 +1,12 @@
 # Design Update Log
 
+## 2026-08-07
+
+* **Refine**: Select each admin map marker from the user's latest coordinate-bearing clear or hosting observation while keeping VPN, proxy, and Tor activity in the network-risk view.
+
 ## 2026-08-02
 
+* **Extend**: Add recurring UTC group-access windows, browser-local schedule editing, and validated static denial-message variables.
 * **Refine**: Replace admin group cards with a policy table, confirmed modal workflows, editable group details, and reusable effective-member management.
 * **Add**: Provide Users-page group assignment, effective-group VPN/proxy/Tor exceptions for game admission, and independent configurable denial messages.
 * **Fix**: Treat malformed ProxyCheck proxy signals as unknown and classify every authenticated Velocity login before identity resolution.

design/us-009-velocity-admission.md

@@ -23,11 +23,14 @@ As a registered player, I want the Velocity proxy to recognize my approved Java
 - [x] Successful fallback backfills UUID and canonical username.
 - [x] Changed usernames are persisted and audited.
 - [x] Registered players are allowed only when their single effective group has access enabled; explicit assignments override the default group.
+- [x] Disabled group access overrides every schedule; enabled groups with weekly windows admit logins only during an active UTC window.
+- [x] Schedule policy is checked before VPN/proxy/Tor policy and is enforced only at login.
 - [x] Unknown players, group-disabled players, API failures, malformed responses, and unauthorized requests fail closed with registration guidance.
 - [x] The plugin records the real Velocity connection IP and supports Java Edition online mode only.
 - [x] After admission, Velocity reports `PostLoginEvent` as best-effort authenticated telemetry without disconnecting an admitted player when reporting fails.
 - [x] Confirmed-connection reports use fresh timestamps and database replay protection.
 - [x] Group-disabled and VPN/proxy/Tor-policy denials return distinct operator-configured messages.
+- [x] Schedule denials return the configured static template with the effective group, player, and next UTC window.
 - [x] The default anonymized-network message directs the player to contact a host for an exception.
 - [x] API failures, malformed responses, and unauthorized requests retain fail-closed plugin fallback behavior.
 

design/us-012-admin-operations.md

@@ -21,8 +21,9 @@ As an administrator, I want operational settings and audit visibility, so that I
 - [x] Event views show type, subject, IP, classification, and approximate location when available.
 - [x] Admin console access itself creates an audit event with the SSO identity.
 - [x] Settings, users, and events are linked from the shared admin navigation.
-- [x] Administrators can independently configure registration-required, group-access-disabled, and VPN/proxy/Tor-denied game messages.
-- [x] Every message is validated server-side and has a safe default.
+- [x] Administrators can independently configure registration-required, group-access-disabled, schedule-denied, and VPN/proxy/Tor-denied game-message templates.
+- [x] Registration, group, and network templates accept only `{player}` and `{group}`; schedule templates also accept `{next_start}` and `{next_end}`.
+- [x] Every template is validated server-side and has a safe default.
 - [x] Admission-message changes are audited with the administrator identity without logging credentials.
 
 # Implementation
@@ -31,6 +32,7 @@ As an administrator, I want operational settings and audit visibility, so that I
 - [`apps/web/src/app/admin/(console)/actions.ts`](../apps/web/src/app/admin/%28console%29/actions.ts)
 - [`apps/web/src/lib/admission-settings.ts`](../apps/web/src/lib/admission-settings.ts)
 - [`packages/database/drizzle/0004_zippy_silver_centurion.sql`](../packages/database/drizzle/0004_zippy_silver_centurion.sql)
+- [`packages/database/drizzle/0005_young_vertigo.sql`](../packages/database/drizzle/0005_young_vertigo.sql)
 - [`apps/web/src/app/admin/(console)/events/page.tsx`](../apps/web/src/app/admin/%28console%29/events/page.tsx)
 
 # Validation

design/us-017-group-access.md

@@ -19,6 +19,8 @@ As an administrator, I want to organize registered users into access groups, so
 - [x] The `everyone` group remains created with Minecraft access disabled.
 - [x] Administrators can create groups with access disabled by default and move users between groups.
 - [x] Administrators can enable or disable Minecraft admission for each group.
+- [x] Disabled Minecraft admission always denies group members; enabled admission may additionally be restricted by recurring UTC windows.
+- [x] Groups without windows retain unrestricted scheduling, and groups with windows admit logins only during an active window.
 - [x] Admission follows only the user's effective group; default and explicit-group access are never combined.
 - [x] Administrators can delete non-default groups, returning affected users to `everyone`.
 - [x] The protected default group cannot be deleted.
@@ -40,6 +42,7 @@ As an administrator, I want to organize registered users into access groups, so
 - [`packages/database/drizzle/0002_simple_queen_noir.sql`](../packages/database/drizzle/0002_simple_queen_noir.sql)
 - [`packages/database/drizzle/0003_smiling_silver_samurai.sql`](../packages/database/drizzle/0003_smiling_silver_samurai.sql)
 - [`packages/database/drizzle/0004_zippy_silver_centurion.sql`](../packages/database/drizzle/0004_zippy_silver_centurion.sql)
+- [`packages/database/drizzle/0005_young_vertigo.sql`](../packages/database/drizzle/0005_young_vertigo.sql)
 - [`apps/web/src/app/admin/(console)/groups/page.tsx`](../apps/web/src/app/admin/%28console%29/groups/page.tsx)
 - [`apps/web/src/app/admin/(console)/groups/[groupId]/page.tsx`](../apps/web/src/app/admin/%28console%29/groups/%5BgroupId%5D/page.tsx)
 - [`apps/web/src/app/api/velocity/access/route.ts`](../apps/web/src/app/api/velocity/access/route.ts)

design/us-018-admin-dashboard.md

@@ -3,7 +3,7 @@ type: User Story
 title: Monitor community account activity
 description: Administrators use a server-rendered dashboard to review daily activity, confirmed connections, locations, denials, and risky networks.
 tags: [admin, dashboard, metrics, security, maps, ssr]
-timestamp: 2026-08-02T12:05:27Z
+timestamp: 2026-08-07T22:31:05Z
 story_id: US-018
 status: verified
 ---
@@ -15,7 +15,9 @@ As an administrator, I want an operational dashboard of account and game activit
 # Acceptance Criteria
 
 - [x] The administrator landing page is a dashboard rather than a settings form.
-- [x] A server-rendered Natural Earth overview plots each user's latest observation with valid approximate coordinates.
+- [x] A server-rendered Natural Earth overview plots each user's latest non-anonymized observation with valid approximate coordinates, allowing clear and hosting classifications while excluding VPN, proxy, and Tor observations.
+- [x] When a user's newest coordinate-bearing observation is VPN, proxy, or Tor, the map uses that user's older clear or hosting observation when one exists.
+- [x] A user without a coordinate-bearing clear or hosting observation is counted as unavailable on the map.
 - [x] Administrators can opt into a zoomable OpenStreetMap view without removing the default overview.
 - [x] OpenStreetMap tiles load only after the administrator selects the interactive view and retain required attribution.
 - [x] Map markers show the managed Discord nickname on hover or keyboard focus, link to user records, and have an accessible text-table equivalent.
@@ -31,7 +33,7 @@ As an administrator, I want an operational dashboard of account and game activit
 - [x] Monthly active users count distinct users observed through portal or game activity in the previous 30 days.
 - [x] Monthly active Minecraft accounts count distinct accounts with a confirmed Velocity post-login connection in the previous 30 days.
 - [x] The dashboard shows login denials from the previous 24 hours.
-- [x] Recent VPN, proxy, and Tor observations use enriched ProxyCheck classifications, collapse repeated rows per user, and show counts, sources, and latest activity.
+- [x] Recent VPN, proxy, and Tor observations remain available in the separate network-risk section when excluded from map-location selection.
 - [x] The graph includes an accessible title, description, point labels, and textual values.
 - [x] Dashboard queries and initial rendering execute server-side; only the opt-in pan-and-zoom map hydrates client-side.
 - [x] Deployment-managed guild settings and denial messaging remain available on a dedicated settings page.
@@ -48,8 +50,9 @@ As an administrator, I want an operational dashboard of account and game activit
 # Validation
 
 - Missing-day chart behavior and per-user VPN collapsing are covered by [`apps/web/src/lib/admin-metrics.test.ts`](../apps/web/src/lib/admin-metrics.test.ts).
-- Coordinate parsing, backward-compatible ProxyCheck network parsing, normalized location grouping, projection, count badges, complete grouped tooltips, linked markers, semantic network columns, text fallback, and attribution are covered by the user-world-map tests.
-- The Next.js production build reports the dashboard and database-backed console pages as dynamic server-rendered routes.
+- Coordinate parsing, the clear/hosting map policy, backward-compatible ProxyCheck network parsing, normalized location grouping, projection, count badges, complete grouped tooltips, linked markers, semantic network columns, text fallback, and attribution are covered by the user-location and user-world-map tests.
+- The full test suite passes with 106 tests across 36 files; web type checking and lint pass.
+- The Next.js production build succeeds and reports the dashboard and database-backed console pages as dynamic server-rendered routes.
 
 # Related Stories
 

design/us-019-admin-group-management.md

@@ -14,7 +14,7 @@ As an administrator, I want a concise group policy table and focused group detai
 
 # Acceptance Criteria
 
-- [x] The main Groups page lists name, Minecraft access, VPN/proxy/Tor access, and effective member count with the default group first and remaining names ordered alphabetically.
+- [x] The main Groups page lists name, Minecraft access, schedule status, VPN/proxy/Tor access, and effective member count with the default group first and remaining names ordered alphabetically.
 - [x] Policy controls show their current state and require confirmation in an accessible modal before mutation.
 - [x] Selecting a group name opens a detail page with its description, policies, and effective members.
 - [x] Add group opens an accessible modal asking for name, description, Minecraft access, and VPN/proxy/Tor access.
@@ -24,6 +24,8 @@ As an administrator, I want a concise group policy table and focused group detai
 - [x] Non-default groups can be deleted only after modal confirmation, returning all affected users to `everyone`.
 - [x] Group identity, policy, creation, and deletion mutations commit atomically with their audit events.
 - [x] Modal controls support keyboard operation, focus management, cancellation, and clear pending state.
+- [x] Group details summarize recurring UTC access windows in the browser's local timezone.
+- [x] Administrators use a confirmed modal to add, remove, and replace multiple non-overlapping windows.
 
 # Implementation
 
@@ -32,6 +34,7 @@ As an administrator, I want a concise group policy table and focused group detai
 - [`apps/web/src/app/admin/(console)/groups/actions.ts`](../apps/web/src/app/admin/%28console%29/groups/actions.ts)
 - [`apps/web/src/components/admin-modal-form.tsx`](../apps/web/src/components/admin-modal-form.tsx)
 - [`apps/web/src/components/group-policy-control.tsx`](../apps/web/src/components/group-policy-control.tsx)
+- [`apps/web/src/components/group-schedule-editor.tsx`](../apps/web/src/components/group-schedule-editor.tsx)
 - [`apps/web/src/lib/group-management.ts`](../apps/web/src/lib/group-management.ts)
 
 # Validation

design/us-020-scheduled-group-access.md

@@ -0,0 +1,52 @@
+---
+type: User Story
+title: Schedule group access in UTC
+description: Administrators restrict enabled groups to recurring weekly UTC windows and provide static denial-message templates.
+tags: [admin, groups, scheduling, velocity, templates, security]
+timestamp: 2026-08-02T17:42:26Z
+story_id: US-020
+status: verified
+---
+
+# User Story
+
+As an administrator, I want an enabled group to have recurring access windows, so that its members can join only during approved weekly periods and receive useful denial guidance.
+
+# Acceptance Criteria
+
+- [x] A group can have zero or more recurring weekly access windows stored and evaluated in UTC.
+- [x] The browser shows each UTC window's current equivalent in the administrator's local timezone while clearly identifying UTC as authoritative.
+- [x] The Groups table identifies unrestricted groups and the configured window count, linking each status to schedule management.
+- [x] Administrators can add and remove multiple windows, including windows that cross the end of the UTC week.
+- [x] Window starts are inclusive and window ends are exclusive.
+- [x] No configured windows preserve unrestricted scheduling behavior while Minecraft access is enabled.
+- [x] Disabled Minecraft access always denies admission, regardless of schedule.
+- [x] Enabled Minecraft access with configured windows allows login only inside an active window.
+- [x] VPN/proxy/Tor policy is evaluated only after group access and schedule policy pass.
+- [x] Schedule enforcement occurs at login and does not disconnect an existing session when a window ends.
+- [x] Schedule changes require confirmation, reauthorize the administrator, and commit atomically with an audit event.
+- [x] Malformed or overlapping schedule data is rejected; malformed persisted policy fails closed.
+- [x] Registration, group-disabled, and VPN/proxy/Tor templates support `{player}` and `{group}`.
+- [x] Schedule-denied templates additionally support `{next_start}` and `{next_end}` for the earliest upcoming UTC window.
+- [x] Unknown template variables, control characters, and invalid lengths are rejected server-side.
+- [x] Registration denials use `everyone` when no effective group can be resolved.
+
+# Implementation
+
+- [`packages/database/src/schema.ts`](../packages/database/src/schema.ts)
+- [`packages/database/drizzle/0005_young_vertigo.sql`](../packages/database/drizzle/0005_young_vertigo.sql)
+- [`apps/web/src/lib/group-schedule.ts`](../apps/web/src/lib/group-schedule.ts)
+- [`apps/web/src/lib/admission-settings.ts`](../apps/web/src/lib/admission-settings.ts)
+- [`apps/web/src/app/admin/(console)/groups/[groupId]/page.tsx`](../apps/web/src/app/admin/%28console%29/groups/%5BgroupId%5D/page.tsx)
+- [`apps/web/src/app/api/velocity/access/route.ts`](../apps/web/src/app/api/velocity/access/route.ts)
+
+# Validation
+
+UTC recurrence, multiple-window selection, local conversion, malformed schedules, template validation, policy precedence, and schedule-editor interactions are covered by automated tests. Drizzle generation, migration preflight, TypeScript, lint, build, security checks, and OKF validation must pass.
+
+# Related Stories
+
+- [Enforce registration at Velocity](us-009-velocity-admission.md)
+- [Operate settings and audit views](us-012-admin-operations.md)
+- [Control Minecraft admission with groups](us-017-group-access.md)
+- [Manage groups efficiently](us-019-admin-group-management.md)

docs/accessibility.md

@@ -13,7 +13,8 @@ Player account management, administrator navigation, dashboard metrics and chart
 - Preserved reduced-motion behavior and disabled decorative cursor animation when requested.
 - Added labels or accessible names to search, Minecraft username, settings, group, and event-filter controls.
 - Added reusable per-user group dropdowns that open labelled confirmation dialogs, restore the prior selection on cancellation, prevent dismissal while pending, and provide live progress and result feedback.
-- Group creation, policy, editing, and deletion use native modal dialogs with keyboard cancellation, focus management, descriptive confirmation text, and disabled pending controls.
+- Group creation, policy, schedule editing, metadata editing, and deletion use scrollable native modal dialogs with keyboard cancellation, focus management, descriptive confirmation text, and disabled pending controls.
+- Weekly schedule rows use labelled fieldsets, weekday and time controls, explicit exclusive-end wording, authoritative UTC values, and browser-local equivalents with the detected timezone.
 - Added `fieldset` and `legend` semantics to multi-select event-type filters.
 - Added table captions, column scopes, and row scopes to administrator data tables.
 - Added `role=status` with polite announcements for successful nickname changes and `role=alert` with assertive announcements for errors.

docs/architecture.md

@@ -16,7 +16,7 @@ The bot creates private login links in response to `/register` and `/account`. D
 
 Velocity sends the authenticated Java UUID, current username, source IP, server ID, request ID, and occurrence time. The API matches UUID first. Username fallback is allowed only when the stored account has no UUID, after which UUID and canonical username are updated.
 
-The admission decision is fail closed. Unknown players, disabled effective groups, disallowed confirmed VPN/proxy/Tor connections, invalid responses, expired requests, authentication failures, and unavailable API responses are denied. Registration, group-access, and anonymized-network denials use independent operator-configured messages; transport and service failures retain the plugin's local fallback. After admission succeeds, `PostLoginEvent` reports a confirmed proxy connection through a fresh, authenticated, replay-protected request. Connection telemetry is best effort and never disconnects an already admitted player.
+The admission decision is fail closed. Unknown players, disabled effective groups, out-of-window scheduled groups, disallowed confirmed VPN/proxy/Tor connections, invalid responses, expired requests, authentication failures, and unavailable API responses are denied. Policy order is fixed: registration, enabled effective group, recurring UTC schedule, then anonymized-network exception. Zero schedule windows mean no time restriction; configured starts are inclusive and ends are exclusive. Scheduling is checked only at login and never disconnects an admitted player. Registration, group-access, schedule, and anonymized-network denials use independent operator-configured static templates; validated variables provide player, group, and next-window UTC guidance without executable expressions. Transport and service failures retain the plugin's local fallback. After admission succeeds, `PostLoginEvent` reports a confirmed proxy connection through a fresh, authenticated, replay-protected request. Connection telemetry is best effort and never disconnects an already admitted player.
 
 ## Trust boundaries
 
@@ -32,6 +32,7 @@ The admission decision is fail closed. Unknown players, disabled effective group
 - A Discord user ID maps to one user.
 - An active Minecraft UUID or case-insensitive username maps to one account.
 - A user has at most one active primary Minecraft account.
+- Group schedule boundaries are integer UTC minutes of the recurring Monday-based week; malformed or overlapping persisted windows fail closed during admission.
 - Removed accounts are soft deleted to retain audit history.
 - Audit events are CloudEvents-shaped, append-only application records.
 - `published_at` reserves an outbox-style path for later Kafka publishing.

docs/security-review.md

@@ -24,9 +24,11 @@ Next.js portal and APIs, Discord bot, PostgreSQL persistence, Keycloak admin aut
 - Velocity credentials are high-entropy bearer tokens stored only as hashes.
 - Velocity admission and confirmed-connection requests have a 45-second clock window and database-unique request IDs for cross-instance replay prevention.
 - Velocity and its API fail closed.
-- Registered players require an enabled effective group; explicit assignments replace rather than combine with the protected, disabled-by-default `everyone` fallback.
+- Registered players require an enabled effective group; explicit assignments replace rather than combine with the protected, disabled-by-default `everyone` fallback. Disabled access always overrides scheduling.
+- Enabled groups with recurring UTC windows admit only during an active login window. Window boundaries and overlap are validated server-side, malformed persisted policy fails closed, and connected sessions are not re-evaluated.
 - Confirmed VPN, proxy, and Tor game connections are denied unless that same effective group has an explicit exception; `everyone` and new groups default to no exception.
-- Group, VPN-policy, identity, and membership mutations re-check the Keycloak administrator role server-side; registry assignments, policy changes, group edits, creation, deletion, and message settings commit atomically with their audit events.
+- Static admission templates use a fixed allowlist of non-executable variables. Unknown placeholders and control characters are rejected, and rendered values remain plain JSON/text.
+- Group, schedule, VPN-policy, identity, and membership mutations re-check the Keycloak administrator role server-side; registry assignments, policy changes, group edits, creation, deletion, and message settings commit atomically with their audit events.
 - Group identity creation/rename and membership assignment/deletion use compatible PostgreSQL advisory and row locks to prevent duplicate names, stale audit records, or membership/deletion races. The protected default name and deletion restriction are enforced server-side.
 - Every bearer-authenticated Velocity login uses cached IP intelligence before identity resolution, preventing account-creation races from bypassing network policy; malformed provider proxy signals classify as unknown.
 - Event filters accept only event types already present in the ledger, and event detail routes remain role-protected.

package-lock.json

@@ -25,10 +25,10 @@
         "@minecraft-account-manager/logging": "*",
         "discord.js": "^14.25.1",
         "dotenv": "^17.2.3",
-        "drizzle-orm": "^0.45.1"
+        "drizzle-orm": "^0.45.1",
+        "tsx": "^4.21.0"
       },
       "devDependencies": {
-        "tsx": "^4.21.0",
         "typescript": "^5.9.3"
       }
     },
@@ -671,7 +671,6 @@
       "version": "0.10.2",
       "resolved": "https://registry.npmjs.org/@drizzle-team/brocli/-/brocli-0.10.2.tgz",
       "integrity": "sha512-z33Il7l5dKjUgGULTqBsQBQwckHh5AbIuxhdsIxDDiZAzBOrZO6q9ogcWC65kU382AfynTfgNumVcNIjuIua6w==",
-      "dev": true,
       "license": "Apache-2.0"
     },
     "node_modules/@emnapi/core": {
@@ -712,7 +711,6 @@
       "resolved": "https://registry.npmjs.org/@esbuild-kit/core-utils/-/core-utils-3.3.2.tgz",
       "integrity": "sha512-sPRAnw9CdSsRmEtnsl2WXWdyquogVpB3yZ3dgwJfe8zrOzTsV7cJvmwrKVa+0ma5BoiGJ+BoqkMvawbayKUsqQ==",
       "deprecated": "Merged into tsx: https://tsx.hirok.io",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "esbuild": "~0.18.20",
@@ -724,7 +722,6 @@
       "resolved": "https://registry.npmjs.org/@esbuild-kit/esm-loader/-/esm-loader-2.6.5.tgz",
       "integrity": "sha512-FxEMIkJKnodyA1OaCUoEvbYRkoZlLZ4d/eXFu9Fh8CbBBgP5EmZxrfTRyN0qpXZ4vOvqnE5YdRdcrmUUXuU+dA==",
       "deprecated": "Merged into tsx: https://tsx.hirok.io",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "@esbuild-kit/core-utils": "^3.3.2",
@@ -738,7 +735,6 @@
       "cpu": [
         "ppc64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -755,7 +751,6 @@
       "cpu": [
         "arm"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -772,7 +767,6 @@
       "cpu": [
         "arm64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -789,7 +783,6 @@
       "cpu": [
         "x64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -806,7 +799,6 @@
       "cpu": [
         "arm64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -823,7 +815,6 @@
       "cpu": [
         "x64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -840,7 +831,6 @@
       "cpu": [
         "arm64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -857,7 +847,6 @@
       "cpu": [
         "x64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -874,7 +863,6 @@
       "cpu": [
         "arm"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -891,7 +879,6 @@
       "cpu": [
         "arm64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -908,7 +895,6 @@
       "cpu": [
         "ia32"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -925,7 +911,6 @@
       "cpu": [
         "loong64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -942,7 +927,6 @@
       "cpu": [
         "mips64el"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -959,7 +943,6 @@
       "cpu": [
         "ppc64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -976,7 +959,6 @@
       "cpu": [
         "riscv64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -993,7 +975,6 @@
       "cpu": [
         "s390x"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -1010,7 +991,6 @@
       "cpu": [
         "x64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -1027,7 +1007,6 @@
       "cpu": [
         "arm64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -1044,7 +1023,6 @@
       "cpu": [
         "x64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -1061,7 +1039,6 @@
       "cpu": [
         "arm64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -1078,7 +1055,6 @@
       "cpu": [
         "x64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -1095,7 +1071,6 @@
       "cpu": [
         "arm64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -1112,7 +1087,6 @@
       "cpu": [
         "x64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -1129,7 +1103,6 @@
       "cpu": [
         "arm64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -1146,7 +1119,6 @@
       "cpu": [
         "ia32"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -1163,7 +1135,6 @@
       "cpu": [
         "x64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -4356,7 +4327,6 @@
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/buffer-from/-/buffer-from-1.1.2.tgz",
       "integrity": "sha512-E+XQCRwSbaaiChtv6k6Dwgc+bx+Bs6vuKJHHl5kox/BaKbhiXzqQOwK4cO22yElGp2OCmjwVhT3HmxgyPGnJfQ==",
-      "dev": true,
       "license": "MIT"
     },
     "node_modules/call-bind": {
@@ -4833,7 +4803,6 @@
       "version": "0.31.10",
       "resolved": "https://registry.npmjs.org/drizzle-kit/-/drizzle-kit-0.31.10.tgz",
       "integrity": "sha512-7OZcmQUrdGI+DUNNsKBn1aW8qSoKuTH7d0mYgSP8bAzdFzKoovxEFnoGQp2dVs82EOJeYycqRtciopszwUf8bw==",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "@drizzle-team/brocli": "^0.10.2",
@@ -5236,7 +5205,6 @@
       "version": "0.25.12",
       "resolved": "https://registry.npmjs.org/esbuild/-/esbuild-0.25.12.tgz",
       "integrity": "sha512-bbPBYYrtZbkt6Os6FiTLCTFxvq4tt3JKall1vRwshA3fdVztsLAatFaZobhkBC8/BrPetoa0oksYoKXoG4ryJg==",
-      "dev": true,
       "hasInstallScript": true,
       "license": "MIT",
       "bin": {
@@ -5867,7 +5835,6 @@
       "version": "2.3.3",
       "resolved": "https://registry.npmjs.org/fsevents/-/fsevents-2.3.3.tgz",
       "integrity": "sha512-5xoDfX+fL7faATnagmWPpbFtwh/R77WmMMqqHGS65C3vvB0YHrgF+B1YmZ3441tMj5n63k0212XNoJwzlhffQw==",
-      "dev": true,
       "hasInstallScript": true,
       "license": "MIT",
       "optional": true,
@@ -6003,7 +5970,6 @@
       "version": "4.14.0",
       "resolved": "https://registry.npmjs.org/get-tsconfig/-/get-tsconfig-4.14.0.tgz",
       "integrity": "sha512-yTb+8DXzDREzgvYmh6s9vHsSVCHeC0G3PI5bEXNBHtmshPnO+S5O7qgLEOn0I5QvMy6kpZN8K1NKGyilLb93wA==",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "resolve-pkg-maps": "^1.0.0"
@@ -8225,7 +8191,6 @@
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/resolve-pkg-maps/-/resolve-pkg-maps-1.0.0.tgz",
       "integrity": "sha512-seS2Tj26TBVOC2NIc2rOe2y2ZO7efxITtLZcGSOnHHNOQ7CkiUBfw0Iw2ck6xkIhPwLhKNLS8BO+hEpngQlqzw==",
-      "dev": true,
       "license": "MIT",
       "funding": {
         "url": "https://github.com/privatenumber/resolve-pkg-maps?sponsor=1"
@@ -8624,7 +8589,6 @@
       "version": "0.6.1",
       "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
       "integrity": "sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g==",
-      "dev": true,
       "license": "BSD-3-Clause",
       "engines": {
         "node": ">=0.10.0"
@@ -8643,7 +8607,6 @@
       "version": "0.5.21",
       "resolved": "https://registry.npmjs.org/source-map-support/-/source-map-support-0.5.21.tgz",
       "integrity": "sha512-uBHU3L3czsIyYXKX88fdrGovxdSCoTGDRZ6SYXtSRxLZUzHg5P/66Ht6uoUlHu9EZod+inXhKo3qQgwXUT/y1w==",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "buffer-from": "^1.0.0",
@@ -9129,7 +9092,6 @@
       "version": "4.23.1",
       "resolved": "https://registry.npmjs.org/tsx/-/tsx-4.23.1.tgz",
       "integrity": "sha512-GQHnkIfxyx1wYCOS/wonik5MVRZU9hi1TEZmzGZSCJB1y9YgoZ8H6itNE/u4suE+yLmOzuE4E5S4TZ/ZX2wcWQ==",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "esbuild": "~0.28.0"
@@ -10157,12 +10119,12 @@
       "version": "0.1.0",
       "dependencies": {
         "@minecraft-account-manager/auth": "*",
+        "drizzle-kit": "^0.31.10",
         "drizzle-orm": "^0.45.1",
-        "postgres": "^3.4.8"
+        "postgres": "^3.4.8",
+        "tsx": "^4.21.0"
       },
       "devDependencies": {
-        "drizzle-kit": "^0.31.10",
-        "tsx": "^4.21.0",
         "typescript": "^5.9.3"
       }
     },

packages/auth/src/index.ts

@@ -125,8 +125,10 @@ export function isGameNetworkAllowed(
 export function gameAdmissionDenialReason(
   group: { accessEnabled: boolean; anonymizedNetworksAllowed: boolean } | null,
   classification: "unknown" | "clear" | "vpn" | "proxy" | "hosting" | "tor",
+  scheduleAllowed = true,
 ) {
   if (!group?.accessEnabled) return "group_access_disabled" as const;
+  if (!scheduleAllowed) return "schedule_disallowed" as const;
   if (!isGameNetworkAllowed(classification, group.anonymizedNetworksAllowed)) {
     return "anonymized_network_disallowed" as const;
   }

packages/auth/test/group-access.test.ts

@@ -31,12 +31,14 @@ describe("group-based admission", () => {
     }
   });
 
-  it("prioritizes disabled group access before the network exception policy", () => {
-    expect(gameAdmissionDenialReason({ accessEnabled: false, anonymizedNetworksAllowed: false }, "vpn"))
+  it("prioritizes disabled group access, then schedule, then network policy", () => {
+    expect(gameAdmissionDenialReason({ accessEnabled: false, anonymizedNetworksAllowed: false }, "vpn", false))
       .toBe("group_access_disabled");
-    expect(gameAdmissionDenialReason({ accessEnabled: true, anonymizedNetworksAllowed: false }, "vpn"))
+    expect(gameAdmissionDenialReason({ accessEnabled: true, anonymizedNetworksAllowed: false }, "vpn", false))
+      .toBe("schedule_disallowed");
+    expect(gameAdmissionDenialReason({ accessEnabled: true, anonymizedNetworksAllowed: false }, "vpn", true))
       .toBe("anonymized_network_disallowed");
-    expect(gameAdmissionDenialReason({ accessEnabled: true, anonymizedNetworksAllowed: true }, "vpn"))
+    expect(gameAdmissionDenialReason({ accessEnabled: true, anonymizedNetworksAllowed: true }, "vpn", true))
       .toBeNull();
   });
 });

packages/database/drizzle/0005_young_vertigo.sql

@@ -0,0 +1,12 @@
+CREATE TABLE "group_access_windows" (
+	"id" uuid PRIMARY KEY DEFAULT gen_random_uuid() NOT NULL,
+	"group_id" uuid NOT NULL,
+	"start_minute_of_week" integer NOT NULL,
+	"end_minute_of_week" integer NOT NULL,
+	"created_at" timestamp (3) with time zone DEFAULT now() NOT NULL,
+	CONSTRAINT "group_access_windows_minute_range_check" CHECK ("group_access_windows"."start_minute_of_week" >= 0 and "group_access_windows"."start_minute_of_week" < 10080 and "group_access_windows"."end_minute_of_week" >= 0 and "group_access_windows"."end_minute_of_week" < 10080 and "group_access_windows"."start_minute_of_week" <> "group_access_windows"."end_minute_of_week")
+);
+--> statement-breakpoint
+ALTER TABLE "app_settings" ADD COLUMN "scheduled_access_denied_message" text DEFAULT 'Your group is only allowed access from {next_start} to {next_end}.' NOT NULL;--> statement-breakpoint
+ALTER TABLE "group_access_windows" ADD CONSTRAINT "group_access_windows_group_id_groups_id_fk" FOREIGN KEY ("group_id") REFERENCES "public"."groups"("id") ON DELETE cascade ON UPDATE no action;--> statement-breakpoint
+CREATE INDEX "group_access_windows_group_idx" ON "group_access_windows" USING btree ("group_id");

packages/database/drizzle/meta/_journal.json

@@ -36,6 +36,13 @@
       "when": 1785678753029,
       "tag": "0004_zippy_silver_centurion",
       "breakpoints": true
+    },
+    {
+      "idx": 5,
+      "version": "7",
+      "when": 1785692345708,
+      "tag": "0005_young_vertigo",
+      "breakpoints": true
     }
   ]
 }

packages/database/package.json

@@ -15,12 +15,12 @@
   },
   "dependencies": {
     "@minecraft-account-manager/auth": "*",
+    "drizzle-kit": "^0.31.10",
     "drizzle-orm": "^0.45.1",
-    "postgres": "^3.4.8"
+    "postgres": "^3.4.8",
+    "tsx": "^4.21.0"
   },
   "devDependencies": {
-    "drizzle-kit": "^0.31.10",
-    "tsx": "^4.21.0",
     "typescript": "^5.9.3"
   }
 }

packages/database/src/schema.ts

@@ -1,7 +1,9 @@
 import { sql } from "drizzle-orm";
 import {
   boolean,
+  check,
   index,
+  integer,
   inet,
   jsonb,
   pgEnum,
@@ -80,6 +82,26 @@ export const groups = pgTable(
   ],
 );
 
+export const groupAccessWindows = pgTable(
+  "group_access_windows",
+  {
+    id: uuid("id").primaryKey().defaultRandom(),
+    groupId: uuid("group_id")
+      .notNull()
+      .references(() => groups.id, { onDelete: "cascade" }),
+    startMinuteOfWeek: integer("start_minute_of_week").notNull(),
+    endMinuteOfWeek: integer("end_minute_of_week").notNull(),
+    createdAt: createdAt(),
+  },
+  (table) => [
+    index("group_access_windows_group_idx").on(table.groupId),
+    check(
+      "group_access_windows_minute_range_check",
+      sql`${table.startMinuteOfWeek} >= 0 and ${table.startMinuteOfWeek} < 10080 and ${table.endMinuteOfWeek} >= 0 and ${table.endMinuteOfWeek} < 10080 and ${table.startMinuteOfWeek} <> ${table.endMinuteOfWeek}`,
+    ),
+  ],
+);
+
 export const userGroupMemberships = pgTable(
   "user_group_memberships",
   {
@@ -178,6 +200,9 @@ export const appSettings = pgTable("app_settings", {
   vpnDeniedMessage: text("vpn_denied_message")
     .notNull()
     .default("VPN, proxy, and Tor connections are not allowed. Contact a host to request an exception."),
+  scheduledAccessDeniedMessage: text("scheduled_access_denied_message")
+    .notNull()
+    .default("Your group is only allowed access from {next_start} to {next_end}."),
   ...timestamps(),
 });