[!NOTE] 📦 This plugin lives in the dsh-plugins monorepo — file issues & pull requests there. npm: @hy-sde-org/dsh-vcs

dsh-vcs — native vcs service for DeepSeek Harness

A standalone public package: @hy-sde-org/dsh-vcs — the host-plane ctx.vcs service: a thin, read-only wrapper around the user-installed pi-vcs CLI (the narrow native slice of the oh-my-pi vcs surface, rendered in-process by gitoxide) over the ctx.subprocess seam. It exposes repo-info / rev-diff / staged-diff / worktree-diff / status / branch plus a HEAD-change watch companion, every text surface byte-compatible with the corresponding git diff output.

Why

Published standalone so any DeepSeek Harness installation can mount ctx.vcs without depending on the fork that originally hosted @deepseek-ai/dsh-vcs. The package is purely additive and feature-detected: ctx.git (TS/git-CLI) stays the default path, and ctx.vcs resolves only when a pi-vcs binary is reachable (config → DSH_VCS_PATH → PATH) and probing clean. No jj backend, no mutation verbs.

Prerequisites

• Node.js 22.19 or newer (the package's engines floor) with npm and pnpm on PATH;
• a DeepSeek Harness installation including the standard dsh CLI — the peer baseline is @deepseek-ai/cordis ~4.0.4 and @deepseek-ai/dsh-subprocess ^0.2.0-rc.2;
• the pi-vcs binary — not shipped by this package. Build it from native/pi-vcs-cli/ in the hy-sde deepseek-harness fork (a Rust crate over gitoxide) and install it on PATH, exactly like the av CLI.

Quick start

Route A — published npm package (recommended)

dsh plugin --profile web add @hy-sde-org/dsh-vcs

You can also depend on the package from your own tooling: pnpm add @hy-sde-org/dsh-vcs (or npm install @hy-sde-org/dsh-vcs).

Route B — from source (validate this checkout or hack on the plugin)

git clone git@github.com:hy-sde/dsh-plugins.git
cd dsh-plugins
pnpm install

VCS_TGZ="$(cd dsh-vcs/packages/vcs && pnpm pack --pack-destination /tmp | tail -n 1)"
dsh plugin --profile web add "$VCS_TGZ"
cd ..

Verify

dsh web --dump-config

The composed tree must show a vcs row loading @hy-sde-org/dsh-vcs (stock INSERT patch form). ctx.vcs itself resolves lazily — only when a pi-vcs binary is reachable (config → DSH_VCS_PATH → PATH) and probing clean.

Uninstall

dsh plugin --profile web remove @hy-sde-org/dsh-vcs

What the bundle does

The bundle ships a cordis.patch.yml (stock INSERT patch form) that adds the vcs row to the profile's base composition — host-plane, stateless per call, one instance across sessions. Peers: @deepseek-ai/cordis and @deepseek-ai/dsh-subprocess (the host must mount a subprocess implementation, e.g. @deepseek-ai/dsh-subprocess-local). No model-facing tools ship here, so no agent preset is needed.

Development

pnpm install
pnpm -r check       # strict typecheck (src + tests)
pnpm -r test        # service tests over a fake pi-vcs shim
pnpm -r build       # tsc -> dist
bash scripts/release-public.sh --check      # pre-publish validation
bash scripts/release-public.sh --publish    # publish to npm

Layout

packages/vcs/   @hy-sde-org/dsh-vcs — the host ctx.vcs service
  src/index.ts                Cordis plugin registration (apply → ctx.vcs)
  src/service.ts              VcsService + VcsCommandError + effect runner
  src/types.ts                CLI JSON payload types (repo-info/status/watch)
  tests/service.spec.ts       18 tests over a fake pi-vcs shim
  cordis.patch.yml            host-plane row insert (stock INSERT form)

License and attribution

This package is licensed MIT — the same license as the DeepSeek Harness codebase it is derived from (MIT, © 2026 DeepSeek). The ctx.vcs service's CLI resolution + probe, git-compatible diff/status surfaces, structured VcsCommandError taxonomy, and HEAD-change watch companion derive from the fork's @deepseek-ai/dsh-vcs; the upstream copyright holders are recorded in LICENSE next to this package's own notice, and the derived-module provenance is aggregated in THIRD-PARTY-NOTICES.md.