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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.

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

Pause / resume / cancel the in-flight conversation task from the composer area: forced pause interrupts immediately and remembers the interrupted tool, safe pause lands after the tool or reasoning finishes, resume asks for confirmation, and the default pause granularity is configurable in the settings.

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

Four-source migration wizard: move Claude Code, Codex, OpenCode and Hermes sessions, memories, skills, instructions and slash commands into DSH (/move wizard with approval gate and idempotent move.json, resumable sessions).

Pin sessions and workspaces to the top of the Web sidebar with per-pin row colors, a header toggle and a pinned panel; 0.4.0 adds a navigation organizer — pin groups (boards), tags and saved filter views, session health summaries, and /goto.

Cross-device session sync for DeepSeek Harness — syncs sessions and settings between machines through git.

Move sessions across workspaces by drag-and-drop with true in-place migration; recover orphaned or unregistered sessions; re-point stale workspaces after folder renames. IDs and history stay intact, with per-step backup and rollback.

Virtual session folders, click-to-move menu, and active task banner for DSH sidebar.

Prevents concurrent-write session corruption: takes a per-session advisory lock on session start and every step, so a second dsh process fails loudly instead of writing a duplicate-seq gap; dead owners are taken over automatically.

Rolling, integrity-verified backups of each session at turn boundaries: verifies the log still loads before promoting a snapshot, never overwrites the last good one when a turn ends corrupt, and restores in one command even when dsh will not boot.

Session Workbench: full-text search past sessions, recall up to 3 as @references, and manage conversation-view tabs (show/hide + drag reorder).

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

Switch the language of the agent's thinking/reasoning process (chain-of-thought): 简体中文, English, Русский, Français, Deutsch, Español, 日本語, 한국어 and more, or auto-follow the system locale. Adds a Settings → General row, a system-prompt instruction (per-prompt assembly, applies to new sessions), and the /thinking-language command.

Settings section for archived sessions: browse by workspace, search, batch unarchive with the sidebar updating live, and optional auto-archive rules (idle days, keep-last-N per workspace) with a dry-run preview — plus a left-edge turn rail for jumping between turns of long conversations and ↑/↓ input history in the composer.

Type @ in the composer to reference another conversation: pick a historical session and inject its compacted context into the current prompt.

Session health-check: mechanically mines session logs into structured problem tickets (retry loops, tool-error clusters, interrupted turns, token waste) over the official session-query seam; works standalone.

One-click context compression for the dsh web GUI: a 压缩 button on the session title bar summarizes the whole conversation into a few lines, opens a new session in the same workspace seeded with the summary, and switches to it — the original session stays untouched.

Move a session to another folder from the Web UI via drag & drop or a menu picker, permanently delete a session with a risk-consent dialog, and AI-rename a session by summarizing the whole conversation (typo-aware). Each action also ships as an agent tool.

Condenses DSH session titles from a full sentence into a short verb-free phrase, aiming for under five words.

Inline-edit and recall your own user messages in dsh web — lazily and seamlessly, with a version pager and per-session draft persistence.

Channel-grouped session view injected into the sidebar — Workspace/Channels tabs with live-running dots, archived grouping, orphan tagging, built purely on official extension surfaces and serving as the RFC-0001 reference implementation.

Off-peak message scheduler: turn on valley mode and the composer queues your messages until DeepSeek off-peak hours (half price), then auto-injects them into the session and gets replies. Native-look composer, hotkeys (Enter queue / ⌘+Enter send now / Esc exit), per-session toggle persisted across restarts.

Splits the DeepSeek Harness sidebar into independently scrollable Pinned and Recents panes, and hides pinned sessions from Recents.