fix(web): keep one composer bar DOM across the no-workspace transition The composer.bar slot moves from session to session-maybe scope: with no current session the entry still mounts, the machine faces (keyboard, stop, command) arrive undefined, and the bar renders its normal DOM inert via the disabled owner prop. DisabledInputBar and its parallel tree are gone, so the textarea node survives the cold-start workspace pick instead of flashing through a remount. A blank session whose workspace was deleted takes the same inert path through owner props. test(web): add the composer DOM-continuity acceptance probe Drives a real dsh web server with headless chromium through the cold-start -> pick-workspace -> type flow and asserts the composer textarea is the same DOM node throughout (a marker property must survive). Rerun prerequisites are in the header comment. docs(web): session-maybe identity is adoption, not hold-forever fix(web): session-maybe entries adopt the first session, then remount like strict entries A session-maybe entry used to keep one React instance across every transition, so component-local state leaked between sessions once the composer bar moved to that scope (PermissionSelect's optimistic pick, the IME composition guard). Identity is now adoption: an incarnation born session-less holds through the arrival of the first session (the blank shell's DOM survives the workspace pick), and afterwards behaves exactly like a strict session entry — a switch or a drop to no-session remounts, clearing local state by construction. The child key is an incarnation counter kept in the stable outlet wrapper via render-phase setState. chore: knip knows the root acceptance probe's playwright dependency scripts/hero-composer-dom-continuity.mjs resolves playwright through apps/web's devDependency tree (createRequire), which knip cannot follow; ignore it at the root workspace.
DeepSeek Harness
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DeepSeek Harness (dsh) is an open-source coding agent built on the DeepSeek Harness SDK.
It uses an architecture where everything is a plugin.
Install
Install dsh with one command:
curl -fsSL https://raw.githubusercontent.com/deepseek-harness/deepseek-harness/master/scripts/install.sh | sh
The installer requires git and Node ^22.19 || >=24, offers to install pnpm when it is missing, and prompts for a DeepSeek API key.
The installer keeps every checkout under ~/.dsh/source: the master clone at ~/.dsh/source/master and each install's staging checkout as a git worktree ~/.dsh/source/staging-<timestamp>. The stable symlink ~/.dsh/source/current points at the active staging worktree, and dsh in ~/.local/bin links to current/bin/dsh, so an upgrade repoints one symlink and the dsh on PATH never moves. Re-running the command adds a fresh staging worktree from an updated master and repoints current at it. See scripts/install.sh for alternate install locations and other options.
Use DeepSeek Harness
Web UI
For the recommended local interface, build the frontend after installation and after each update, then start the Web UI. Resolve the running checkout from the dsh launcher so the command holds regardless of which staging worktree is current (the launcher resolves through the stable current symlink):
dsh_bin=$(cd "$(dirname "$(command -v dsh)")" && pwd -P)/$(basename "$(command -v dsh)")
while [ -L "$dsh_bin" ]; do
link=$(readlink "$dsh_bin")
case $link in /*) dsh_bin=$link ;; *) dsh_bin=$(cd "$(dirname "$dsh_bin")" && cd "$(dirname "$link")" && pwd -P)/$(basename "$link") ;; esac
done
dsh_dir=$(cd "$(dirname "$dsh_bin")/.." && pwd -P)
pnpm --dir "$dsh_dir" run build && pnpm --dir "$dsh_dir" run build:web
dsh web
The Web UI is served at http://127.0.0.1:3080 by default.
TUI
Start the full-screen terminal interface:
dsh
Headless
Run one task, print the final answer, and exit:
dsh -p "summarize this workspace"
Why DeepSeek Harness
Built-in capabilities cover file reading, editing, and search; shell execution; reusable skills; task tracking; subagents and workflows; persistent sessions; and context compaction. The TUI also includes Plan Mode.
- Everything is a plugin. Models, tools, policies, storage, context management, and interfaces are composable Cordis plugins, so deployments can extend or replace behavior without forking the agent loop. See the architecture for the underlying design.
- Code Mode (opt-in). It exposes a
run_codetool and a generated TypeScript SDK; only program output re-enters model context. See Code Mode. - Self-referential Cordis tools are opt-in. They let the agent inspect its live runtime and mount or unmount plugins while it runs. See the Cordis tools.
Community
Follow DeepSeek Harness on Twitter for project updates.
Development
pnpm install
pnpm run test:coverage
Start with the development guide and read the architecture before changing packages.
For agents, follow AGENTS.md.
DeepSeek Harness is currently pre-release.