fix(auto-reply): preserve OpenRouter @preset model directives (#23769)

* Auto-reply: preserve OpenRouter @preset model directives

* Changelog: move OpenRouter preset fix into 2026.2.22 unreleased

src/auto-reply/model.test.ts

@@ -36,6 +36,20 @@ describe("extractModelDirective", () => {
       expect(result.rawProfile).toBe("myprofile");
     });
 
+    it("keeps OpenRouter preset paths that include @ in the model name", () => {
+      const result = extractModelDirective("/model openrouter/@preset/kimi-2-5");
+      expect(result.hasDirective).toBe(true);
+      expect(result.rawModel).toBe("openrouter/@preset/kimi-2-5");
+      expect(result.rawProfile).toBeUndefined();
+    });
+
+    it("still allows profile overrides after OpenRouter preset paths", () => {
+      const result = extractModelDirective("/model openrouter/@preset/kimi-2-5@work");
+      expect(result.hasDirective).toBe(true);
+      expect(result.rawModel).toBe("openrouter/@preset/kimi-2-5");
+      expect(result.rawProfile).toBe("work");
+    });
+
     it("returns no directive for plain text", () => {
       const result = extractModelDirective("hello world");
       expect(result.hasDirective).toBe(false);

src/auto-reply/model.ts

@@ -33,10 +33,16 @@ export function extractModelDirective(
 
   let rawModel = raw;
   let rawProfile: string | undefined;
-  if (raw?.includes("@")) {
-    const parts = raw.split("@");
-    rawModel = parts[0]?.trim();
-    rawProfile = parts.slice(1).join("@").trim() || undefined;
+  if (raw) {
+    const atIndex = raw.lastIndexOf("@");
+    if (atIndex > 0) {
+      const candidateModel = raw.slice(0, atIndex).trim();
+      const candidateProfile = raw.slice(atIndex + 1).trim();
+      if (candidateModel && candidateProfile && !candidateProfile.includes("/")) {
+        rawModel = candidateModel;
+        rawProfile = candidateProfile;
+      }
+    }
   }
 
   const cleaned = match ? body.replace(match[0], " ").replace(/\s+/g, " ").trim() : body.trim();