Chat Panel

Layout

Header: collapse session list (☰), new chat, plugin manager.
Session list: title + message count, selected row highlighted; hover for export/delete.
Messages: each exchange is a turn (user message + tool cards + reply) with a "Copy this exchange" button; code blocks keep their own copy button; when scrolling a long conversation, ⤒ / ⤓ quick buttons briefly appear at the bottom-right (scroll up → jump-to-top, scroll down → jump-to-bottom, auto-hide after ~2s).
Toolbar: agent picker, model picker (upward menus), "Current note only" toggle.
Footer: auto-growing input (Enter to send / Shift+Enter for newline), send/stop button.

Streaming can be disabled in Settings → Interface.
Markdown rendering uses the official renderer; can be switched to plain text.
Phase bar shows thinking / tool / waiting-for-approval states.
Retry: failed turns persist an error message with a Retry button.
Empty-response auto-continuation: if the model thinks for a long time and returns nothing (e.g. thinking exhausted the output quota), Harness Like automatically nudges it to continue (up to 2 retries) before surfacing the reason — raising Settings → Models → "Max output tokens" (8192+ recommended) fixes it at the root.
Stop: the send button becomes Stop during generation.

Sessions persist to .obsidian/harness-like/sessions/*.jsonl and survive restarts.
Export directory: Settings → Sessions (default: a sessions/ folder at the vault root).
Retention (auto-cleanup days): Settings → Sessions.

Export as Markdown: hover the session in the list and click "⤓" — exports that session as a Markdown note;
Export directory: Settings → Sessions → "Export directory" (default: a sessions/ folder at the vault root; empty = root);
Full backup: session logs live in .obsidian/harness-like/sessions/ — copy that folder to migrate with your vault.

Default is "Follow system": matches Obsidian's app language (zh → 中文, otherwise English). Pin 中文 or English in Settings → Interface.