Tianyi Cui
53283003e9
The briefing now maps each update at the narrowest safely aligned granularity, widening deterministically on mapping failure: a change confined to the pair's byte-identical code fences is computed outright (--apply splices it into the counterpart and validates the result against the pairing gate's structural signature before writing); otherwise changed Markdown units — headings, paragraphs, table rows, list items, fences, block quotes, HTML blocks, thematic breaks, link definitions, matched by container-scoped kind sequences — each carry their last-confirmed source, current source, and current counterpart text; units that do not align fall back to depth-matched heading sections (depth only, so translated heading text still maps); and when sections do not align either, or both sides drifted, the briefing says so and withholds the mapping. Terminology rows now match the changed spans only, English terms on word boundaries with plural inflections, and Chinese-target briefings track each relevant term's document-wide first occurrence — a moved occurrence pulls the vacated and receiving spans into the briefing with an explanatory note. The unit mapping, mechanical code splice, and first-occurrence tracking adopt the planner design from the incremental prompt-pipeline PR (#684), whose provider-backed bake-off independently validated the same scope ladder; this PR carries those mechanics into the agent-facing briefing path so both consumers of the consistency records behave alike. The prior line-hunk section mapping and its heading-text alignment (which could not map cross-language sections) are replaced wholesale. Docs: SKILL.md update path, i18n README pair, development.md pair, and the briefed-updates Agent Note pair brought along; the development.md fence edit was applied with --apply itself, and the prose updates were made through the new unit/section briefings.
DeepSeek Harness
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DeepSeek Harness (dsh) is an open-source coding agent built on the DeepSeek Harness SDK.
It uses an architecture where everything is a plugin.
Install
Install dsh with one command:
curl -fsSL https://raw.githubusercontent.com/deepseek-harness/deepseek-harness/master/scripts/install.sh | sh
The installer requires git and Node ^22.19 || >=24, offers to install pnpm when it is missing, and prompts for a DeepSeek API key.
The installer clones DeepSeek Harness to ~/.dsh/source, links dsh into ~/.local/bin, and launches it. Re-running the command updates the checkout. See scripts/install.sh for alternate install locations and other options.
Use DeepSeek Harness
Web UI
For the recommended local interface, build the frontend after installation and after each update, then start the Web UI:
pnpm --dir ~/.dsh/source run build && pnpm --dir ~/.dsh/source run build:web
dsh web
The Web UI is served at http://127.0.0.1:3080 by default.
TUI
Start the full-screen terminal interface:
dsh
Headless
Run one task, print the final answer, and exit:
dsh -p "summarize this workspace"
Why DeepSeek Harness
Built-in capabilities cover file reading, editing, and search; shell execution; reusable skills; task tracking; subagents and workflows; persistent sessions; and context compaction. The TUI also includes Plan Mode.
- Everything is a plugin. Models, tools, policies, storage, context management, and interfaces are composable Cordis plugins, so deployments can extend or replace behavior without forking the agent loop. See the architecture for the underlying design.
- Code Mode (opt-in). It exposes a
run_codetool and a generated TypeScript SDK; only program output re-enters model context. See Code Mode. - Self-referential Cordis tools are opt-in. They let the agent inspect its live runtime and mount or unmount plugins while it runs. See the Cordis tools.
Community
Follow DeepSeek Harness on Twitter for project updates.
Development
pnpm install
pnpm run test:coverage
Start with the development guide and read the architecture before changing packages.
For agents, follow AGENTS.md.
DeepSeek Harness is currently pre-release.