35b85a9cda
Reported: chat names never regenerate after the first reply. They were regenerating; the request was being made and the answer thrown away. `complete()` returns `message.content` verbatim, and a model that emits `<think>` inline puts its thinking in exactly the field the title is read from. So the title came back as "<think>Okay, the user wants a short title for" -- or, once the too-long guard caught that, as the first prompt trimmed, which is indistinguishable from titling never having run. That is what was being seen. Underneath it, `max_tokens: 24`. Ample for six words, and nowhere near enough for a model that reasons first: the budget goes on thinking and the content field comes back empty or holding an unclosed tag. Too small is not a shorter title, it is no title at all. Both fixed: the reply goes through `reasoning.strip_reasoning`, and the budget is `TITLE_MAX_TOKENS` with room to think. Reproduced first against the four shapes an endpoint actually answers with -- three of them were broken -- and the tests are written from those. What I did *not* do is ask for a low reasoning effort on the call, which would make it much cheaper and was the obvious move. `reasoning_effort` and `chat_template_kwargs` appear only where somebody has opted in, so that a provider strict about unknown parameters sees exactly the request it always did. An LLMError here is caught and turned into a fallback title -- so a 400 would be titling silently switching itself off, which is the failure this commit exists to fix. The token budget makes the room instead. The shipped prompt now asks for a leading emoji, as requested. Asked for rather than assumed: a model that ignores it gives a title without one, and an administrator who does not want them clears the word. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>