diff --git a/AGENTS.md b/AGENTS.md
index 9c01dbc..1b25a2f 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -18,7 +18,7 @@
 ## Conventions
 
 - Keep user layout changes in `config.ts` when possible.
-- Preserve copied provider logic in `usage/` unless fixing integration issues.
+- **Do NOT modify files in `usage/` or `providers/` without explicit user approval.** These contain copied upstream provider logic. Always ask before changing them.
 - Use composable module config instead of subtype strings. For usage, prefer:
 
 ```ts
diff --git a/index.ts b/index.ts
index cce88fe..0a36b48 100644
--- a/index.ts
+++ b/index.ts
@@ -10,7 +10,6 @@ import type { ModuleContext, ModuleSpec, RenderedModule, StatusbarState } from "
 import type { Provider, UsageCredential, UsageProvider, UsageReport } from "./usage";
 
 const REFRESH_MS = 60_000;
-const ANTHROPIC_REFRESH_MS = 15 * 60_000;
 
 const usageProviders: Record<Provider, UsageProvider> = {
   "openai-codex": openaiCodexUsageProvider,
@@ -167,7 +166,7 @@ export default function piStatusbarExtension(pi: ExtensionAPI) {
       return;
     }
 
-    const minRefreshMs = provider === "anthropic" ? ANTHROPIC_REFRESH_MS : REFRESH_MS;
+    const minRefreshMs = REFRESH_MS;
     if (!force && statusbarState.report?.provider === provider && Date.now() - statusbarState.report.fetchedAt < minRefreshMs) {
       rerender(ctx);
       return;