diff --git a/dist/providers/google-gemini-cli.js b/dist/providers/google-gemini-cli.js
index 93aa26c395e9bd0df64376408a13d15ee9e7cce7..beb585e2f2c13eec3bca98acade761101e4572ff 100644
--- a/dist/providers/google-gemini-cli.js
+++ b/dist/providers/google-gemini-cli.js
@@ -248,6 +248,11 @@ export const streamGoogleGeminiCli = (model, context, options) => {
                         break; // Success, exit retry loop
                     }
                     const errorText = await response.text();
+                    // Fail immediately on 429 for Antigravity to let callers rotate accounts.
+                    // Antigravity rate limits can have very long retry delays (10+ minutes).
+                    if (isAntigravity && response.status === 429) {
+                        throw new Error(`Cloud Code Assist API error (${response.status}): ${errorText}`);
+                    }
                     // Check if retryable
                     if (attempt < MAX_RETRIES && isRetryableError(response.status, errorText)) {
                         // Use server-provided delay or exponential backoff
diff --git a/dist/providers/openai-codex-responses.js b/dist/providers/openai-codex-responses.js
index 188a8294f26fe1bfe3fb298a7f58e4d8eaf2a529..a3aeb6a7ff53bc4f7f44362adb950b2c55455332 100644
--- a/dist/providers/openai-codex-responses.js
+++ b/dist/providers/openai-codex-responses.js
@@ -515,7 +531,7 @@ function convertTools(tools) {
         name: tool.name,
         description: tool.description,
         parameters: tool.parameters,
-        strict: null,
+        strict: false,
     }));
 }
 function mapStopReason(status) {
diff --git a/dist/providers/openai-responses.js b/dist/providers/openai-responses.js
index b7c52e449360dcb8152b31f3659401764ce59f17..7c6cd358ee4f7c3994d59be5938554bdb5d32af3 100644
--- a/dist/providers/openai-responses.js
+++ b/dist/providers/openai-responses.js
@@ -396,11 +396,12 @@ export const streamOpenAIResponses = (model, context, options) => {
         }
         else if (msg.role === "assistant") {
             const output = [];
-            // OpenAI Responses rejects `reasoning` items that are not followed by a `message`.
-            // Tool-call-only turns (thinking + function_call) are valid assistant turns, but
-            // their stored reasoning items must not be replayed as standalone `reasoning` input.
+            // OpenAI Responses rejects `reasoning` items that are not followed by a `message`,
+            // but tool-call-only turns still require reasoning replay before the function call.
             const hasTextBlock = msg.content.some((b) => b.type === "text");
+            const hasToolCallBlock = msg.content.some((b) => b.type === "toolCall");
             for (const block of msg.content) {
                 // Do not submit thinking blocks if the completion had an error (i.e. abort)
                 if (block.type === "thinking" && msg.stopReason !== "error") {
                     if (block.thinkingSignature) {
-                        if (!hasTextBlock)
+                        if (!hasTextBlock && !hasToolCallBlock)
                             continue;
                         const reasoningItem = JSON.parse(block.thinkingSignature);
                         output.push(reasoningItem);
                     }