800bafda3b
Replace the dsh CLI's three hand-rolled parsing idioms (raw argv[0]/includes dispatch in bin.ts, per-mode node:util parseArgs in headless.ts/web.ts, and the bespoke parseResumeArg scanner in dsh-app-boot) with a single Commander adapter in apps/cli/src/args.ts. parseDshArgs resolves argv into a discriminated DshInvocation union; bin.ts switches on the mode and dynamic-imports the chosen module, which now consumes already-parsed values. - web is a real subcommand; --host uses choices and --port an argParser range check, moving validation into the parser. - --resume rejects empty and repeated forms; --prompt rejects empty; a config positional after --prompt and a root flag placed before web fail loud. - adds --help/--version; removes parseResumeArg from dsh-app-boot. - new apps/cli/tests/args.spec.ts (apps/*/tests added to vitest include, apps/cli/tests to tsconfig.host.json); the tui-agent keyless PTY smoke covers bin.ts dispatch end to end unchanged.
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: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.