MODEL_CAPS

open-sse/translator/request/openai-to-gemini.js

@@ -428,11 +428,15 @@ function wrapInCloudCodeEnvelopeForClaude(model, claudeRequest, credentials = nu
   return envelope;
 }
 
+// Detect if model should use Claude backend in Antigravity
+// Claude models have specific ID patterns — more reliable than caps at routing level
+function isClaudeModel(model) {
+  return model.toLowerCase().includes("claude");
+}
+
 // OpenAI -> Antigravity (Sandbox Cloud Code with wrapper)
 export function openaiToAntigravityRequest(model, body, stream, credentials = null) {
-  const isClaude = model.toLowerCase().includes("claude");
-
-  if (isClaude) {
+  if (isClaudeModel(model)) {
     const claudeRequest = openaiToClaudeRequestForAntigravity(model, body, stream);
     return wrapInCloudCodeEnvelopeForClaude(model, claudeRequest, credentials);
   }

open-sse/translator/request/openai-to-kiro.js

@@ -20,8 +20,8 @@ function convertMessages(messages, tools, model) {
   let pendingImages = [];
   let currentRole = null;
 
-  // Only Claude models support images in Kiro
-  const supportsImages = model && model.toLowerCase().includes("claude");
+  // Image support is pre-filtered by caps in translateRequest before reaching here
+  const supportsImages = true;
 
   const flushPending = () => {
     if (currentRole === "user") {