## Summary
- On API failure, `handleSend` was leaving the user's message orphaned in chat history with no assistant reply
- The input field was already cleared (`setInput('')` ran before the `try`), making retry impossible without re-typing
- Catch block now rolls back `messages` to the pre-send snapshot and restores `input` to the original text
## Root cause
`setMessages(updatedHistory)` and `setInput('')` executed unconditionally before the `try` block. On error, the user message was stuck in history and the input was gone.
## Fix
Two lines added to the `catch` block in `handleSend`:
```ts
setMessages(messages); // rollback to snapshot captured before optimistic update
setInput(text); // restore user's text so they can retry without retyping
```
The optimistic update (showing the user message while waiting) is preserved — only the rollback path is changed.
## Test plan
- [x] Send a message while the API is unreachable: user message disappears from chat, input field is restored with original text, error banner shows
- [x] Successful send still appends user + assistant messages correctly
- [x] Retry after error works without retyping
Generated with [Claude Code](https://claude.com/claude-code) · Flagged by [AntFleet](https://antfleet.dev) code review
<!-- This is an auto-generated comment: release notes by coderabbit.ai -->
## Summary by CodeRabbit
* **Bug Fixes**
* Restored user input and message history when config assistant encounters errors.
* **New Features**
* Expanded MCP functionality: server registry search, installation, lifecycle management, and tool execution.
* Added AI-powered configuration assistance for MCP server setup.
* **Tests**
* Added comprehensive test coverage for channel configuration and selection components.
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[](https://app.coderabbit.ai/change-stack/tinyhumansai/openhuman/pull/2280?utm_source=github_walkthrough&utm_medium=github&utm_campaign=change_stack)
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<!-- end of auto-generated comment: release notes by coderabbit.ai -->
Co-authored-by: Steven Enamakel <enamakel@tinyhumans.ai>
Co-authored-by: antfleet-ops <285575208+antfleet-ops@users.noreply.github.com>
Co-authored-by: cyrus <cyrus@tinyhumans.ai>
