diff --git a/AGENTS.md b/AGENTS.md
new file mode 100644
index 0000000..9b0fa0f
--- /dev/null
+++ b/AGENTS.md
@@ -0,0 +1,34 @@
+# AGENTS.md
+
+Brackt.com is a fantasy sports drafting platform (React Router 7 + SSR, Socket.IO, PostgreSQL/DrizzleORM, Clerk auth).
+
+## Commands
+
+```bash
+npm run dev               # development with HMR
+npm run typecheck         # TypeScript check
+npm run db:generate       # generate Drizzle migration
+npm run db:migrate        # apply migrations
+npm run test:run          # unit tests (once)
+npm run test:e2e:headless # Cypress E2E
+npm run test:all          # everything
+```
+
+## Critical Rules
+
+**Routes**: Every new route file must also be registered in `app/routes.ts` — React Router 7 does not auto-discover files. Forgetting this causes a silent 404. See [routing guide](docs/agents/routing.md).
+
+**Database**: Always query through `app/models/` — never write Drizzle queries directly in route files.
+
+**Tests**: Required for all new features. Do not consider a feature complete until tests pass. See [testing guide](docs/agents/testing.md).
+
+**Drizzle migrations**: Never manually create migration SQL or edit `_journal.json`. Always use `npm run db:generate`. See [database guide](docs/agents/database.md).
+
+## Reference Docs
+
+- [Architecture](docs/agents/architecture.md) — server layout, DB layer, Socket.IO events
+- [Domain Models](docs/agents/domain-models.md) — draft system and sports data models
+- [Database](docs/agents/database.md) — migration rules, scoring event date gotcha
+- [Routing](docs/agents/routing.md) — route registration, admin routes
+- [Testing](docs/agents/testing.md) — what tests are required and where they live
+- [Auth](docs/agents/auth.md) — Clerk patterns, ownership validation
diff --git a/app/components/league/StandingsPreview.tsx b/app/components/league/StandingsPreview.tsx
index f951a53..ffb93f3 100644
--- a/app/components/league/StandingsPreview.tsx
+++ b/app/components/league/StandingsPreview.tsx
@@ -89,13 +89,12 @@ function RankChangeIndicator({ change }: { change: number }) {
 }
 
 function PointChangeIndicator({ change }: { change: number }) {
-  const sign = change >= 0 ? "+" : "";
   if (change >= 0) {
-    return <span className="text-xs font-semibold text-primary">{sign}{change.toFixed(1)}</span>;
+    return <span className="text-xs font-semibold text-primary">▲{Math.round(change)}</span>;
   }
   return (
     <span className="text-xs font-semibold" style={{ color: "var(--coral-accent, #ef4444)" }}>
-      {sign}{change.toFixed(1)}
+      ▼{Math.abs(Math.round(change))}
     </span>
   );
 }