Files
deepseek-harness/README.md
Turtle 0c9a4d7c28 Retire the readline front door and the repl-agent example
Delete packages/ui/stdio and examples/repl-agent; rename stdio-demo to
@deepseek-ai/dsh-tui-demo (TUI-only, refuses pipes before Loader boot).
tui-agent owns the coding composition inline; echo-agent and the CI demo
smoke move to the one-shot cli-demo bin, which gains -p/--prompt. The
UI-independent with-key e2es move verbatim to tui-agent. SDK wizard's
'stdio' interface becomes 'tui'. PTY testing stays confined to TUI
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See .agents/notes/implemented/simplification/2026-07-20-retire-readline-front-door.md
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Markdown

# DeepSeek Harness
English | [中文](README.zh.md)
The **DeepSeek Harness SDK** is a plugin-based SDK for building agent harnesses.
## Install
Install the `dsh` coding agent with one line — it needs `git` and Node `^22.19 || >=24`, and offers to install `pnpm` if it is missing:
```sh
curl -fsSL https://raw.githubusercontent.com/deepseek-harness/deepseek-harness/master/scripts/install.sh | sh
```
It clones the harness to `~/.dsh/source`, runs `pnpm install`, symlinks `dsh` into `~/.local/bin` (offering to add it to your PATH), prompts once for your `DEEPSEEK_API_KEY`, and launches `dsh`; re-running it updates an existing checkout. Run from inside a checkout (`sh scripts/install.sh`) it reuses that checkout and skips the clone. The overridable `DSH_*` variables are documented in [`scripts/install.sh`](scripts/install.sh).
## Development
This monorepo is built on the [Cordis](https://github.com/cordiverse/cordis) framework (vendored as source under `vendor/`), microkernel-style: everything is a plugin.
```sh
pnpm install
pnpm run test # vitest
# Agent demos require DEEPSEEK_API_KEY.
pnpm run demo:tui # full-screen TUI coding agent
pnpm run demo:headless "task" # one-shot coding agent
pnpm run demo:cordis # self-referential agent demo
pnpm run demo:acp # ACP server agent demo
```
For humans, start with the [development guide](docs/development.md) for local setup, hooks, environment variables, and quality gates, then read the [architecture design](docs/architecture.md) and [documentation graph index](docs/graph-atlas.md) before package work. Local context lives in [packages/](packages/) and [vendor/](vendor/).
For agents, follow [AGENTS.md](AGENTS.md).