Turtle
007e8fd92f
Address review and cut ceremony: the adapter no longer models help/version/ errors as DshInvocation members. Commander owns those under exitOverride — it prints usage or the diagnostic and one try/catch in parseDshArgs turns the thrown CommanderError into process.exit with the intended code. bin.ts drops its help/version/error cases; the union is the three real modes. Domain checks bail via command.error(print + exit 1): --prompt rejects an empty task or a stray config/--resume, empty --resume= fails loud, and --host/--port are validated. A repeated --resume or a flag captured as a value is Commander's standard behavior, left alone (a bad id fails loud downstream). dsh --help discloses web via addHelpText. Net: args.ts 185 -> 112 lines. Also fixes review nits: built-bin e2e resolves on `close`; the /resume handoff uses `dsh --resume=<id> -- <config>` so a config named `web` stays a positional; and stale prose (cordis.yml comment, app-boot module doc + duplicate JSDoc, ui/README, two feature notes, an agent-loop test name) tracks the shipped state. Removes tui-demo's now-dead plugin-include dep and vendor/loader + app-boot tsconfig references.
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 clones DeepSeek Harness to ~/.dsh/source, links dsh into ~/.local/bin, and launches it. Re-running the command updates the checkout. 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:
pnpm --dir ~/.dsh/source run build && pnpm --dir ~/.dsh/source 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.