Yichen Jiang
e200eadd73
Interactive acceptance produced five presentation decisions: - Header band order is preset → tasks → subagent catalog. The root-session descendant count moves out of the breadcrumb (header.lineage) into the actions band (order 30) as SubagentCatalogAction and drops its '/' separator — a root session has no hierarchy to breadcrumb. Child sessions keep their root/child switcher unchanged. - The panel's copy control copies the command (TerminalBlock.copyText), not the output: a long command ellipsizes in the row, so the control is its only complete source, and it stays rendered before any output. - Commands and output lines wrap in full (--dsl-terminal-command-whitespace / --dsl-terminal-line-whitespace: pre-wrap), so the output region never scrolls sideways; the region caps at a fixed height and scrolls (--dsl-terminal-output-max-height) with maxLines: Infinity disabling the head/tail fold. - The panel draws no run-state dot (TerminalBlock.runStateDot: false) — the row above carries the same state — and reclaims the dot gutter via --dsl-terminal-gutter, which must target the card element itself because the variable is declared on it. The panel's left spine is gone with it. All TerminalBlock changes are opt-ins (props or --dsl-terminal-* variables); tool cards keep their shipped fold/ellipsis/dot behavior.
DeepSeek Harness
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DeepSeek Harness (dsh) is an open-source agent harness developed by DeepSeek AI.
It uses an architecture where everything is a plugin, and is powered by Cordis, whose design is described in A Programming Paradigm for Spatiotemporal Composability.
Documentation: https://deepseek-harness.github.io/deepseek-harness/
Developer preview
DeepSeek Harness is currently in developer preview and is iterating rapidly. THERE WILL BE COMPATIBILITY-BREAKING CHANGES.
Review the safety notice before running the project.
Run
Run from npm
Install Node.js, then run:
npx @deepseek-ai/dsh web
The command starts the Web UI at http://127.0.0.1:3080 by default and opens it in the default browser for a local launch. An SSH launch only prints the host URL because the SSH client or editor owns the local forwarded address. Pass --no-open to run the server without opening a browser. See Web UI guide.
Run from source
To run from a repository checkout:
git clone https://github.com/deepseek-ai/deepseek-harness.git
cd deepseek-harness
pnpm install
pnpm run build
pnpm dsh web
pnpm run build prepares the repository artifacts. pnpm dsh web uses those built artifacts without rebuilding.
Community and support
- Feel free to submit feedback or bug reports through GitHub Discussions.
- Add the
dsh-plugintopic to your plugin repository for discoverability. - Join DeepSeek Harness Discord community.
Contributing
See CONTRIBUTING.md.
Development
Start with the development guide and architecture documentation.
For agents, follow AGENTS.md.
License
Third-party dependencies and their licenses are disclosed in THIRD_PARTY_NOTICES.md.