The chatCompletionEventHandler runs getMessageContentParts() and
removeAllDetails() on every streaming token to extract sentences
for real-time TTS dispatch via CustomEvent('chat'). These functions
perform multiple O(n) regex passes over the full accumulated message
content, resulting in O(n^2) total work over a streaming response.
The only consumer of these events is CallOverlay.svelte, which is
only mounted when showCallOverlay is true. Without the overlay open,
the parsing runs but the dispatched events have no listeners.
Wrap all three TTS parsing blocks in an if () guard
so the expensive regex work is skipped entirely for the vast majority
of users who are not using the voice call feature.
Backend emits terminal events for write_file, replace_file_content,
and run_command. Frontend showFileNavDir subscriber uses startsWith
path matching to smartly refresh only when the event is relevant:
- write_file/replace_file_content: refresh if path is in current view
- run_command: always refresh (uses root '/' which matches everything)
- Also adds copy-to-clipboard button and code preview full-height fix
Replace 7 instances of JSON.parse(JSON.stringify()) deep cloning with the native structuredClone API. All are on cold paths (model selection, file preparation, history saving) but structuredClone is ~2x faster and more readable.
fix: model fallback routing for all model types and default model selection
Backend: When ENABLE_CUSTOM_MODEL_FALLBACK is active and a custom model's
base model is unavailable, the fallback now swaps the model and form data
to the configured default model directly. This ensures routing uses the
fallback model's type (pipe, Ollama, or OpenAI) instead of the original
model's type, which previously caused "Model not found" errors when the
fallback was a different backend type.
Frontend: Fixed default model selection in new chat initialization where
the admin-configured default models were always overwritten by the first
available model. The first-available fallback now only triggers when the
configured defaults don't resolve to valid available models.
fix: reset taskIds and messageQueue on new chat
Fixes a bug where clicking "New Chat" after sending a message would
silently drop subsequent messages. The initNewChat function reset most
chat state but did not clear taskIds or messageQueue, causing
submitPrompt to queue messages indefinitely instead of sending them.
fix: gate model default features on global config and user permissions
If you disabled code interpreter globally and in user permissions but
enabled it as a default feature on a model, the code interpreter pill
still appeared in the chat input. Same issue for web search and image
generation.
The setDefaults function in Chat.svelte activated model default features
based solely on the model's capability flag, ignoring whether the feature
was globally enabled or allowed by user permissions. Added the same
global config and user permission checks already used by the integrations
menu visibility and the features object sent to the backend.
Timothy Jaeryang Baek