diff --git a/app/settings/_components/AgentsTab.tsx b/app/settings/_components/AgentsTab.tsx
index 4ccf4a0..7f89dac 100644
--- a/app/settings/_components/AgentsTab.tsx
+++ b/app/settings/_components/AgentsTab.tsx
@@ -3,10 +3,12 @@
 import { useCallback, useMemo, useState, useTransition } from "react";
 import {
   listOAuthSessionsAction,
+  revokeAllOAuthSessionsAction,
   type OAuthSessionView,
 } from "@/lib/actions/oauth-session";
 import { formatOAuthClientName } from "@/lib/ui/oauth-client-name";
 import { AgentSection } from "./AgentSection";
+import { InlineConfirm } from "./InlineConfirm";
 
 interface AgentsTabProps {
   /** Initial session list, hydrated from the server component. */
@@ -14,7 +16,7 @@ interface AgentsTabProps {
 }
 
 /** Canonical brands rendered as fixed sections, in display order. */
-const KNOWN_BRANDS = ["Claude Code", "Codex", "Cursor", "Gemini"] as const;
+const KNOWN_BRANDS = ["Claude Code", "Codex", "Gemini", "Cursor"] as const;
 type KnownBrand = (typeof KNOWN_BRANDS)[number];
 const KNOWN_BRAND_SET: ReadonlySet<string> = new Set(KNOWN_BRANDS);
 
@@ -32,8 +34,8 @@ function groupSessions(sessions: OAuthSessionView[]): {
   const byBrand: Record<KnownBrand, OAuthSessionView[]> = {
     "Claude Code": [],
     Codex: [],
-    Cursor: [],
     Gemini: [],
+    Cursor: [],
   };
   const otherSessions: OAuthSessionView[] = [];
 
@@ -83,6 +85,16 @@ export function AgentsTab({ initialSessions }: AgentsTabProps) {
     });
   };
 
+  const handleRevokeAll = async () => {
+    setError(null);
+    const result = await revokeAllOAuthSessionsAction();
+    if (result.ok) {
+      setSessions([]);
+    } else {
+      setError(result.message);
+    }
+  };
+
   const { byBrand, otherSessions } = useMemo(
     () => groupSessions(sessions),
     [sessions],
@@ -96,7 +108,8 @@ export function AgentsTab({ initialSessions }: AgentsTabProps) {
             Agents &amp; devices
           </h1>
           <p className="mt-1 text-[13px] text-text-muted">
-            Sessions authorized to run via MCP. Revoke any time.
+            Sessions authorized to run via MCP. Changing your password revokes
+            every session automatically.
           </p>
         </div>
         <button
@@ -128,6 +141,25 @@ export function AgentsTab({ initialSessions }: AgentsTabProps) {
       ) : null}
 
       <div className="space-y-3">
+        {sessions.length > 0 ? (
+          <div className="flex min-h-9 items-center justify-end">
+            <InlineConfirm
+              trigger={
+                <button
+                  type="button"
+                  className="cursor-pointer rounded-md px-2.5 py-1 text-[12px] font-medium text-text-muted transition-colors hover:bg-surface-hover hover:text-text-primary"
+                >
+                  Revoke all
+                </button>
+              }
+              prompt="Revoke all sessions?"
+              body="Every connected agent will need to re-authorize."
+              confirmLabel="Revoke all"
+              destructive
+              onConfirm={handleRevokeAll}
+            />
+          </div>
+        ) : null}
         {KNOWN_BRANDS.map((brand) => (
           <AgentSection
             key={brand}
diff --git a/docker/init-pg-cron.sql b/docker/init-pg-cron.sql
new file mode 100644
index 0000000..e8484a9
--- /dev/null
+++ b/docker/init-pg-cron.sql
@@ -0,0 +1,22 @@
+-- Nightly purge of expired and revoked OAuth tokens.
+-- Apply against the application database. pg_cron schedules in UTC.
+-- Idempotent — safe to re-run.
+
+CREATE EXTENSION IF NOT EXISTS pg_cron;
+
+DO $$
+BEGIN
+  PERFORM cron.unschedule('purge-oauth-tokens')
+  WHERE EXISTS (SELECT 1 FROM cron.job WHERE jobname = 'purge-oauth-tokens');
+END $$;
+
+SELECT cron.schedule(
+  'purge-oauth-tokens',
+  '0 3 * * *',
+  $$
+  DELETE FROM neon_auth."oauthRefreshToken"
+   WHERE revoked IS NOT NULL OR "expiresAt" < now();
+  DELETE FROM neon_auth."oauthAccessToken"
+   WHERE "expiresAt" < now();
+  $$
+);
diff --git a/lib/actions/oauth-session.ts b/lib/actions/oauth-session.ts
index f48f0b4..eaf154b 100644
--- a/lib/actions/oauth-session.ts
+++ b/lib/actions/oauth-session.ts
@@ -11,6 +11,7 @@ import {
 } from "@/lib/actions/team-errors";
 import type { OAuthSessionView } from "@/lib/actions/oauth-session-types";
 import {
+  clearUserOAuthArtifacts,
   listActiveOAuthSessions,
   revokeOAuthSession,
   userOwnsActiveSession,
@@ -101,3 +102,38 @@ export async function revokeOAuthSessionAction(input: {
     return teamFail("unknown");
   }
 }
+
+/**
+ * Revoke every active OAuth refresh and access token owned by the caller.
+ *
+ * @returns Discriminated result.
+ */
+export async function revokeAllOAuthSessionsAction(): Promise<TeamActionResult> {
+  let userId: string;
+  try {
+    const session = await requireSession();
+    userId = session.user.id;
+  } catch {
+    return teamFail("unauthorized");
+  }
+
+  const limit = await checkActionRateLimit(
+    {
+      action: "oauth.revoke_all",
+      windowSeconds: 60,
+      perUserMax: 3,
+      perIpMax: 10,
+    },
+    userId,
+  );
+  if (!limit.ok) return teamFail("rate_limited");
+
+  try {
+    await clearUserOAuthArtifacts(userId);
+    revalidatePath("/settings");
+    return { ok: true };
+  } catch (err) {
+    console.error("revokeAllOAuthSessionsAction failed", err);
+    return teamFail("unknown");
+  }
+}
diff --git a/lib/auth.ts b/lib/auth.ts
index 996a56d..91c3740 100644
--- a/lib/auth.ts
+++ b/lib/auth.ts
@@ -5,14 +5,15 @@ import { drizzleAdapter } from "better-auth/adapters/drizzle";
 import * as authSchema from "@/lib/db/auth-schema";
 import { authDb } from "@/lib/db/connection";
 import { clearOrgMembershipArtifacts } from "@/lib/data/account";
+import { clearUserOAuthArtifacts } from "@/lib/data/oauth-session";
 import { ac, owner, admin, member as memberRole } from "@/lib/auth/permissions";
 import { findOrgMemberUserIdsAsAdmin } from "@/lib/data/membership";
 import { grantOrgAccess, revokeOrgAccess } from "@/lib/realtime/access";
 
 /**
- * Better Auth server instance.
- * Uses Neon Auth's existing schema (neon_auth) via drizzleAdapter.
- * Provides email/password auth and organization-based team management.
+ * Better Auth server instance with email/password auth and
+ * organization-based team management. Adapts the `neon_auth` schema via
+ * drizzleAdapter.
  */
 export const auth = betterAuth({
   database: drizzleAdapter(authDb, {
@@ -117,6 +118,14 @@ export const auth = betterAuth({
       consentPage: "/consent",
       allowDynamicClientRegistration: true,
       allowUnauthenticatedClientRegistration: true,
+      accessTokenExpiresIn: 60 * 60, // 1h
+      refreshTokenExpiresIn: 60 * 60 * 24 * 7, // 7 days
+      clientRegistrationAllowedScopes: [
+        "openid",
+        "profile",
+        "email",
+        "offline_access",
+      ],
       validAudiences: process.env.BETTER_AUTH_URL
         ? [
             process.env.BETTER_AUTH_URL,
@@ -139,6 +148,23 @@ export const auth = betterAuth({
       silenceWarnings: { oauthAuthServerConfig: true },
     }),
   ],
+  databaseHooks: {
+    account: {
+      update: {
+        after: async (account) => {
+          if (account.providerId !== "credential") return;
+          try {
+            await clearUserOAuthArtifacts(account.userId);
+          } catch (err) {
+            console.error("account.update.after cascade failure", {
+              userId: account.userId,
+              err,
+            });
+          }
+        },
+      },
+    },
+  },
 });
 
 export type Session = typeof auth.$Infer.Session;
diff --git a/lib/data/oauth-session.ts b/lib/data/oauth-session.ts
index 785293e..c1e8cd2 100644
--- a/lib/data/oauth-session.ts
+++ b/lib/data/oauth-session.ts
@@ -137,6 +137,23 @@ export async function revokeOAuthSession(
   });
 }
 
+/**
+ * Hard-delete every OAuth refresh and access token owned by a user.
+ *
+ * @param userId - Verified user id.
+ * @returns Resolves once both deletes commit.
+ */
+export async function clearUserOAuthArtifacts(userId: string): Promise<void> {
+  await db.transaction(async (tx) => {
+    await tx
+      .delete(oauthAccessToken)
+      .where(eq(oauthAccessToken.userId, userId));
+    await tx
+      .delete(oauthRefreshToken)
+      .where(eq(oauthRefreshToken.userId, userId));
+  });
+}
+
 /**
  * Check whether a user has previously approved a specific OAuth client.
  * Drives the consent page's first-time warning. Uses `oauthConsent` rather