Turtle fca2dda37d refactor(cli): unify the arg grammar — one program, --config flag, real web subcommand
Drop the bare `dsh <config>` positional in favor of a `--config <path>` flag.
Without a root positional, `web` can be a real Commander subcommand in one
program instead of the reserved-first-token dispatch to a second parser, so
`dsh --help` lists every mode natively (no hand-pasted command text) and the
second parser + reserved-token machinery are gone.

Grammar:
  dsh                       TUI (shipped tree + ~/.dsh overlay)
  dsh --config <path>       TUI, alternate tree (demos/tests only)
  dsh --resume <id>         TUI, resume a session
  dsh -p "task"             headless one-shot
  dsh web [--host --port --dev]

`dsh` is the product front door with no positional; `--config` exists only so
demo:cordis, demo:code-mode, and the keyless PTY smokes can point the shipped
bin at an example tree. Those three sites and the /resume re-exec argv move to
`--config <path>`. The `-p` + `--config`/`--resume` mode-mixing guard and the
cordis.yml-owns-host/port-default fix are preserved.

Agent Note + Chinese pair, README, tui.ts docs updated. All 13 PTY smokes
(including code-mode via --config and the exec-replace resume handoff) green.
2026-07-25 15:47:55 +08:00
2026-07-23 18:02:17 +08:00

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_code tool 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.

License

BSD 3-Clause

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