From 0dcde757f588f24943624f6993f2840668411c30 Mon Sep 17 00:00:00 2001
From: mawkone <mark@getacquired.com>
Date: Tue, 19 May 2026 16:16:08 -0700
Subject: [PATCH] fix(runner): correct Gemini SDK payload property
 thinkingBudgetTokens to thinkingBudget

---
 vibn-agent-runner/fix_genai_runner.js    |  9 +++++++++
 vibn-agent-runner/fix_thinking_runner.js | 10 ++++++++++
 vibn-agent-runner/src/llm/gemini-chat.ts |  4 ++--
 3 files changed, 21 insertions(+), 2 deletions(-)
 create mode 100644 vibn-agent-runner/fix_genai_runner.js
 create mode 100644 vibn-agent-runner/fix_thinking_runner.js

diff --git a/vibn-agent-runner/fix_genai_runner.js b/vibn-agent-runner/fix_genai_runner.js
new file mode 100644
index 0000000..48501ee
--- /dev/null
+++ b/vibn-agent-runner/fix_genai_runner.js
@@ -0,0 +1,9 @@
+const fs = require('fs');
+
+const file1 = 'src/llm/gemini-chat.ts';
+let code1 = fs.readFileSync(file1, 'utf8');
+
+code1 = code1.replace(/thinkingBudgetTokens:/g, 'thinkingBudget:');
+fs.writeFileSync(file1, code1);
+
+console.log("Fixed thinkingBudget property error for Runner");
diff --git a/vibn-agent-runner/fix_thinking_runner.js b/vibn-agent-runner/fix_thinking_runner.js
new file mode 100644
index 0000000..56bf84e
--- /dev/null
+++ b/vibn-agent-runner/fix_thinking_runner.js
@@ -0,0 +1,10 @@
+const fs = require('fs');
+
+const file1 = 'src/llm/gemini-chat.ts';
+if (fs.existsSync(file1)) {
+  let code1 = fs.readFileSync(file1, 'utf8');
+  code1 = code1.replace(/thinkingBudgetTokens/g, 'thinkingBudget');
+  fs.writeFileSync(file1, code1);
+}
+
+console.log("Patched thinkingBudget parameter for Runner");
diff --git a/vibn-agent-runner/src/llm/gemini-chat.ts b/vibn-agent-runner/src/llm/gemini-chat.ts
index 3b4cd14..00a4d47 100644
--- a/vibn-agent-runner/src/llm/gemini-chat.ts
+++ b/vibn-agent-runner/src/llm/gemini-chat.ts
@@ -114,7 +114,7 @@ export async function callGeminiChat(opts: {
     }
 
     if (opts.includeThoughts) {
-        config.thinkingConfig = { thinkingBudgetTokens: 1024 };
+        config.thinkingConfig = { thinkingBudget: 1024 };
     }
 
     const fns = toGeminiFunctions(opts.tools ?? []);
@@ -174,7 +174,7 @@ export async function* streamGeminiChat(opts: {
     const config: any = {
       temperature: opts.temperature ?? 0.7,
       maxOutputTokens: 8192,
-      thinkingConfig: { thinkingBudgetTokens: 1024 },
+      thinkingConfig: { thinkingBudget: 1024 },
     };
 
     if (opts.systemPrompt) {