Title agent do not use user supplied prompt

Author: Nifury

packages/opencode/src/session/llm.ts

@@ -74,8 +74,8 @@ export namespace LLM {
         ...(input.agent.prompt ? [input.agent.prompt] : isCodex ? [] : SystemPrompt.provider(input.model)),
         // any custom prompt passed into this call
         ...input.system,
-        // any custom prompt from last user message
-        ...(input.user.system ? [input.user.system] : []),
+        // any custom prompt from last user message (skip for title agent)
+        ...(input.user.system && input.agent.name !== "title" ? [input.user.system] : []),
       ]
         .filter((x) => x)
         .join("\n"),