84 lines
3.4 KiB
Markdown
84 lines
3.4 KiB
Markdown
# DeepSeek Harness
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English | [中文](README.zh.md)
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DeepSeek Harness (`dsh`) is an open-source coding agent built on the DeepSeek Harness SDK.
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It uses an architecture where **everything is a plugin**.
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## Install
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Install `dsh` with one command:
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```sh
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curl -fsSL https://raw.githubusercontent.com/deepseek-harness/deepseek-harness/master/scripts/install.sh | sh
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```
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The installer requires `git` and Node `^22.19 || >=24`, offers to install `pnpm` when it is missing, and prompts for a DeepSeek API key.
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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`](scripts/install.sh) for alternate install locations and other options.
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## Use DeepSeek Harness
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### Web UI
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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):
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```sh
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dsh_bin=$(cd "$(dirname "$(command -v dsh)")" && pwd -P)/$(basename "$(command -v dsh)")
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while [ -L "$dsh_bin" ]; do
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link=$(readlink "$dsh_bin")
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case $link in /*) dsh_bin=$link ;; *) dsh_bin=$(cd "$(dirname "$dsh_bin")" && cd "$(dirname "$link")" && pwd -P)/$(basename "$link") ;; esac
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done
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dsh_dir=$(cd "$(dirname "$dsh_bin")/.." && pwd -P)
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pnpm --dir "$dsh_dir" run build && pnpm --dir "$dsh_dir" run build:web
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dsh web
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```
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The Web UI is served at `http://127.0.0.1:3080` by default.
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### TUI
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Start the full-screen terminal interface:
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```sh
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dsh
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```
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### Headless
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Run one task, print the final answer, and exit:
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```sh
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dsh -p "summarize this workspace"
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```
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## Why DeepSeek Harness
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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.
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- **Everything is a plugin.** Models, tools, policies, storage, context management, and interfaces are composable [Cordis plugins](docs/user/develop/basic/index.md), so deployments can extend or replace behavior without forking the agent loop. See the [architecture](docs/architecture.md) for the underlying design.
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- **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](packages/core/tools/README.md#code-mode).
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- **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](packages/cordis/tool-cordis/README.md).
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## Community
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Follow <a href="https://x.com/Deepseekharness">DeepSeek Harness on Twitter</a> for project updates.
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## Development
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```sh
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pnpm install
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pnpm run test:coverage
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```
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Start with the [development guide](docs/development.md) and read the [architecture](docs/architecture.md) before changing packages.
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For agents, follow [AGENTS.md](AGENTS.md).
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DeepSeek Harness is currently pre-release.
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## License
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[BSD 3-Clause](LICENSE)
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