deepseek-ai/deepseek-harness

## Core Features
- DeepSeek Harness (dsh) is an open-source agent harness developed by DeepSeek AI.
- It uses an architecture where everything is a plugin, allowing capabilities to be added as separate plugin components.
- The framework is powered by Cordis, with a design described in “A Programming Paradigm for Spatiotemporal Composability.”
- It provides a Web UI command, dsh web, which starts a local interface at http://127.0.0.1:3080 by default and can open it in the default browser.
- It supports installation and execution through npm using npx @deepseek-ai/dsh web, as well as running from a source checkout with pnpm-based install, build, and launch steps.
- Community feedback, bug reports, and plugin discovery are supported through GitHub Discussions, the dsh-plugin topic, and a Discord community.

## Use Cases
- Running a local agent harness with a browser-based interface for development or evaluation.
- Building and integrating plugins under the dsh-plugin topic to extend agent capabilities.
- Exploring Cordis-based plugin architecture and spatiotemporal composability in agent systems.
- Testing source-based builds and workflows before contributing or developing extensions.

## Technical Details
- The npm entrypoint is @deepseek-ai/dsh, and the web subcommand starts the Web UI server.
- The default local Web UI address is http://127.0.0.1:3080; --no-open runs the server without launching a browser.
- Source execution uses git clone, pnpm install, pnpm run build, and pnpm dsh web; the build step prepares repository artifacts, and the run step uses built artifacts without rebuilding.
- In SSH environments, the command prints the host URL because the SSH client or editor owns the local forwarded address.

## Notes
- DeepSeek Harness is currently in developer preview and is iterating rapidly.
- Compatibility-breaking changes are expected.
- The project is licensed under MIT, and third-party dependencies are disclosed in THIRD_PARTY_NOTICES.md.