A title now comes from an attached session's live projection cut or a cold one's durable checkpoint, and from nothing else. Attachment is decided by the session store at read time, so a session that attached after the listing is no longer answered from a checkpoint its log has moved past — the stale-title case `api-session.list` already handles this way. The log fold and its per-log memo are gone. Folding one title costs a whole log, and this call sits under every keystroke; a session no projection answers for is labeled by its id and regains its title the first time it is opened. `lib` leaves the default exclusions: Ruby gems and many npm packages keep sources there, and the miss would be silent and total. A traversal whose root is unreadable now rejects instead of publishing an empty index over entries that are still good, which is what the stale-while-revalidate path claimed but could not do while every readdir error was swallowed. A drill marks the menu drilled only when its edit actually reached the draft. Refs #3154 Refs #3180
DeepSeek Harness
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DeepSeek Harness (dsh) is an open-source agent harness developed by DeepSeek AI.
It is built on an everything-is-a-plugin architecture and 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 in developer preview and 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
- 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.