critical

diff --git a/packages/opencode/src/session/system.ts b/packages/opencode/src/session/system.ts
--- a/packages/opencode/src/session/system.ts
+++ b/packages/opencode/src/session/system.ts
@@ -27,12 +27,12 @@
   }

   export function provider(model: Provider.Model) {
+    if (model.providerID.includes("anthropic") && model.api.id.includes("claude")) return []
     if (model.api.id.includes("gpt-5")) return [PROMPT_CODEX]
     if (model.api.id.includes("gpt-") || model.api.id.includes("o1") || model.api.id.includes("o3"))