diff --git a/packages/opencode/src/provider/transform.ts b/packages/opencode/src/provider/transform.ts
index be06340d6c..0eee64466b 100644
--- a/packages/opencode/src/provider/transform.ts
+++ b/packages/opencode/src/provider/transform.ts
@@ -683,13 +683,19 @@ export namespace ProviderTransform {
 
     // Handle thinking mode for @ai-sdk/anthropic, @ai-sdk/google-vertex/anthropic (budgetTokens)
     // and @ai-sdk/openai-compatible with Claude (budget_tokens)
-    if (npm === "@ai-sdk/anthropic" || npm === "@ai-sdk/google-vertex/anthropic" || npm === "@ai-sdk/openai-compatible") {
+    if (
+      npm === "@ai-sdk/anthropic" ||
+      npm === "@ai-sdk/google-vertex/anthropic" ||
+      npm === "@ai-sdk/openai-compatible"
+    ) {
       const thinking = options?.["thinking"]
       // Support both camelCase (for @ai-sdk/anthropic) and snake_case (for openai-compatible)
       const budgetTokens =
-        typeof thinking?.["budgetTokens"] === "number" ? thinking["budgetTokens"] :
-        typeof thinking?.["budget_tokens"] === "number" ? thinking["budget_tokens"] :
-        0
+        typeof thinking?.["budgetTokens"] === "number"
+          ? thinking["budgetTokens"]
+          : typeof thinking?.["budget_tokens"] === "number"
+            ? thinking["budget_tokens"]
+            : 0
       const enabled = thinking?.["type"] === "enabled"
       if (enabled && budgetTokens > 0) {
         // Return text tokens so that text + thinking <= model cap, preferring 32k text when possible.
diff --git a/packages/opencode/test/provider/transform.test.ts b/packages/opencode/test/provider/transform.test.ts
index 22d1a70707..b1e0c9a619 100644
--- a/packages/opencode/test/provider/transform.test.ts
+++ b/packages/opencode/test/provider/transform.test.ts
@@ -277,7 +277,12 @@ describe("ProviderTransform.maxOutputTokens", () => {
           budget_tokens: 10000,
         },
       }
-      const result = ProviderTransform.maxOutputTokens("@ai-sdk/openai-compatible", options, modelLimit, OUTPUT_TOKEN_MAX)
+      const result = ProviderTransform.maxOutputTokens(
+        "@ai-sdk/openai-compatible",
+        options,
+        modelLimit,
+        OUTPUT_TOKEN_MAX,
+      )
       expect(result).toBe(OUTPUT_TOKEN_MAX)
     })
 
@@ -289,7 +294,12 @@ describe("ProviderTransform.maxOutputTokens", () => {
           budget_tokens: 30000,
         },
       }
-      const result = ProviderTransform.maxOutputTokens("@ai-sdk/openai-compatible", options, modelLimit, OUTPUT_TOKEN_MAX)
+      const result = ProviderTransform.maxOutputTokens(
+        "@ai-sdk/openai-compatible",
+        options,
+        modelLimit,
+        OUTPUT_TOKEN_MAX,
+      )
       expect(result).toBe(20000)
     })
 
@@ -301,7 +311,12 @@ describe("ProviderTransform.maxOutputTokens", () => {
           budget_tokens: 10000,
         },
       }
-      const result = ProviderTransform.maxOutputTokens("@ai-sdk/openai-compatible", options, modelLimit, OUTPUT_TOKEN_MAX)
+      const result = ProviderTransform.maxOutputTokens(
+        "@ai-sdk/openai-compatible",
+        options,
+        modelLimit,
+        OUTPUT_TOKEN_MAX,
+      )
       expect(result).toBe(OUTPUT_TOKEN_MAX)
     })
 
@@ -313,7 +328,12 @@ describe("ProviderTransform.maxOutputTokens", () => {
           budget_tokens: 0,
         },
       }
-      const result = ProviderTransform.maxOutputTokens("@ai-sdk/openai-compatible", options, modelLimit, OUTPUT_TOKEN_MAX)
+      const result = ProviderTransform.maxOutputTokens(
+        "@ai-sdk/openai-compatible",
+        options,
+        modelLimit,
+        OUTPUT_TOKEN_MAX,
+      )
       expect(result).toBe(OUTPUT_TOKEN_MAX)
     })
   })