AI AGENT · WORTH A LOOK
DeepSeek Harness
DeepSeek's open-source agent app for everyday work and coding, built around plugins.
What DeepSeek Harness does
An open-source (MIT) agent app from DeepSeek, in public preview, with desktop apps for macOS and Windows and an npm package for Linux. It organises files, analyses data, drafts documents and slides, works on code (fix bugs, build features, run tests), does cited research and runs background and scheduled tasks. Everything is a plugin: you can install plugins or ask it to build one in Creator mode. It runs on a DeepSeek API key by default, and other OpenAI-compatible model providers can be configured.
Good for
- Everyday office tasks on your own files: documents, spreadsheets, slides
- Coding on a local repository
- Scheduled background tasks with plugins
Try this in 10 minutes
Honest take
No red flags in our notes so far
- Public preview: expect rough edges, and the team flags several features as experimental.
- It needs a model API key, DeepSeek's by default. Check data-residency rules before using it on client files.
Our Hype or Fact? checks
Pricing
Free and open source (MIT). You pay for the model you connect it to, e.g. DeepSeek API pay-per-token.
Prices as listed by the maker when we last checked (2026-11-01); usually in US dollars. Check the website for current prices.
Latest update
- : The team published 'Exploring Super-agent Design', a design essay on an always-on agent that works across chat and GitHub, plus an MIT-licensed research prototype (dsh-superagent-prototype). DeepSeek says it is not an official product.
- : Desktop apps for macOS and Windows released. Linux users install it via the @deepseek-ai/dsh npm package.