dsh-session-plus

English | 中文

dsh-session-plus is a DeepSeek Harness plugin that adds practical session utilities without patching DSH core code. It extends the conversation page with a session-management menu, archived-session tools, turn-level cleanup/regeneration actions, and a right-side topic navigator.

Features

Session manager menu

The plugin adds a Session manager button to the conversation header. The menu provides:

• Delete session: deletes the current stopped session after confirmation. Running sessions are protected and cannot be deleted.
• Call stats: counts tool calls in the current session and groups them by tool name, including succeeded, failed, and pending calls.
• Rename: renames the current session through the official session API.
• Fork session: creates a new session from the current one when the current turn is forkable.
• Archive session: hides the current session from the sidebar by adding it to the workspace archive list.
• Open folder: opens the current session log directory in the system file manager.
• Export session: delegates to DSH Session Log export.
• Open archive: opens the archived-session management dialog.

Archived-session manager

The archive dialog manages sessions that are archived/hidden from the sidebar:

• search archived sessions by title;
• preview archived session content in a modal without restoring it;
• show tool-call statistics in the preview;
• load preview messages incrementally;
• continue an archived session in a new chat by forking it;
• restore archived sessions back to the session list;
• open an archived session folder;
• delete archived sessions after confirmation.

Deletion uses the operating system trash on Windows/macOS. On platforms without a system trash integration, the session directory is removed directly. Running archived sessions are not deleted.

Turn cleanup and regeneration

The plugin adds actions next to completed top-level assistant turns and supported failed-turn tails:

• Delete from this turn onward removes the selected turn and every later completed turn from the active conversation surface and future model context. It does not delete the whole session.
• Regenerate removes the selected turn and later turns, then queues the original user prompt again so the model can answer from that point.

Safety behavior:

• Turn removal is represented by durable replacement tombstones whose provider/model are dsh-turns-del / tombstone.
• The append-only session event log is preserved; deleted ranges are hidden from the folded surface instead of physically erased from history.
• The host takes the Agent maintenance lease before mutating a live session.
• The implementation validates that each target turn still maps to an independent, contiguous surface span. If the surface has been compacted, mixed with retained history, or already overlaps a deleted range, the action is rejected instead of guessing.
• Sessions are flushed before success is acknowledged.
• Regeneration is refused while the agent is running, while queued user input exists, or when the original prompt is missing, ambiguous, or not plain text.

Topic quick navigator

Every conversation page gets a right-side Topics navigator inspired by chat.deepseek.com:

• collapsed state shows a vertical column of flat markers;
• hover/focus opens a fixed-size scrollable panel;
• user prompts are displayed as one-line ellipsized titles;
• full titles are exposed through native tooltips;
• the currently viewed topic is highlighted while scrolling;
• clicking a topic smoothly scrolls to it;
• the navigator hides on narrow screens.

Files

• lib/index.js: host routes, archive/session operations, turn deletion, and regeneration logic.
• lib/client.js: web UI slots, modals, topic navigator, turn actions, styles, and locale dictionaries.
• cordis.patch.yml: bundle insertion patch for the plugin.
• README.md / README.zh.md: English and Chinese documentation.

Notes and limits

• The plugin does not patch DSH core packages.
• Whole-session deletion is disabled while a session is running.
• Turn deletion/regeneration is intentionally conservative and may refuse unsafe or compacted histories.
• Regeneration only replays a single plain-text user prompt from the selected turn.
• Original append-only events remain in the session log even when the active surface no longer shows them.