Rewind conversation and workspace state, powered by a persistent Change Ledger.

Import full-fidelity chat histories from 13 coding agents (Claude Code, Codex, ChatGPT, Cursor, Gemini, opencode, and more) as resumable DeepSeek Harness sessions, with reverse export back to Claude Code.

Export the append-only session log as human-readable Markdown or HTML, grouped by trajectory source.

Cross-instance message and event handoff between DSH instances via an interconnect server.

Branch-based message editing, reroll, retry, and a version timeline.

Share your conversations with one click.

Delete DSH sessions from the web UI and desktop client: header danger button and session-row menu item with a risk-consent dialog; host endpoint and agent tool remove the session log, projection cache, and workspace accounting.

A simple DSH queue panel for editing, removing, steering, reordering, and bulk removal.

Visual branch brainstorming that creates an isolated Session for each direction, automates parent, sibling, checkpoint, and return Handoffs, and provides a full tree tab with an optional Better Sidebar view.

Recall any user message: rolls the conversation (official session fork) and workspace files (per-message shadow git snapshots) back to before it, with a diff-preview confirmation panel.

Local-first learning mode: cross-session learning threads with per-source explanations.

`/side` persistent side sessions and `/btw` one-shot side questions, run in a temporary fork without touching main history.

Bookmark assistant replies with notes and tags; browse every bookmark in one cross-session center and export to Markdown.

Select part of a conversation and ask about it in a right-side side chat; bring AI replies back to the main chat directly or as a summary.

Migrate Claude Code sessions, memory, skills and CLAUDE.md into DSH with seamless resume (claude_scan / import_claude / resume-claude / web panel).

Let dsh and Claude Code sessions message each other directly; comes with a clickable peer list card (sort/search/send/refresh).

Carry durable task state across DeepSeek Harness, WorkBuddy, Claude Code and Codex with machine-readable checkpoints and optimistic locking.

Archived-session management: browse archived sessions, unarchive them, or clear them out.

Bring the deepseek.com web/app chat experience to DSH: edit your prompt and regenerate answers in place, with a per-message <i/N> version pager (tree model, stable across conversations).

Import claude-code / codex / reasonix / zcode chat history into dsh sessions: workspace binding, tool calls preserved, oversized-session protection, zcode compaction restore.

Voice input for DeepSeek Harness: speak into the microphone and the recognized text is submitted as a normal chat message, via local or browser speech recognition.

Cross-session agent messaging for DeepSeek Harness with session discovery, offline delivery, delivery receipts, and sender-session navigation.

File claim/release protection for parallel DSH sessions on the same workspace (heartbeat stale takeover, pending 3-way merge area).

Copy and open `dsh://` session deep links, or paste them into another conversation to inject a bounded, read-only snapshot of the referenced session.