deepseek-harness-runtime-bin

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Platform runtime wheel for the DeepSeek Harness Python SDK. It packages the normal dsh CLI and its closed Node dependency tree into a native executable, so SDK use requires no system Node.js. This package publishes wheels only.

Installed commands and artifacts

The wheel installs a dsh console command and the deepseek_harness_runtime Python module. dsh forwards its arguments to the bundled executable and requires a non-empty DSH_HOME; it never falls back to ~/.dsh.

Production executables are named deepseek-harness-sdk-runtime-<platform>-<arch> under the module's runtime/ directory; Windows uses the .exe suffix. Linux and macOS wheels include a target-native -rg sidecar, Windows includes -rg.exe, and macOS also includes -spawn-helper for node-pty. Published targets are Linux x64, Linux arm64, macOS arm64, and Windows x64. The wheel tag and payload must match exactly; no Windows arm64 wheel is published.

Repository builds also materialize a dev-only runtime/node/ carrier. It runs node runtime/node/node_modules/@deepseek-ai/dsh/lib/bin.js on system Node 22.19 or newer. It is never selected automatically and is excluded from wheels and sdists.

Both carriers execute the same dsh grammar and shipped profiles, including the standalone sdk-minimal tree and the full web profile with its frontend assets. The private dsh-python-runtime-closure manifest defines the packaged dependency closure; there is no Python-specific Node application or checked-in default cordis.yml.

Python module API

• bundled_package_dir() -> Path returns the installed module-data root and verifies its release metadata.
• bundled_runtime_path() -> Path returns the current platform executable and verifies required sidecars.
• resolve_bundled_launch_args(mode=None) -> tuple[str, ...] returns the executable argv by default. Explicit mode="node" or DSH_RUNTIME_MODE=node selects the repo-only Node carrier.
• main() implements the installed dsh console command and rejects an absent or blank DSH_HOME before replacing the Python process.

Unsupported platforms and missing executables or sidecars raise FileNotFoundError with the build and installation routes. Unknown runtime modes raise ValueError.

Packaged profile resolution

dsh initializes shipped profiles under the explicit home, composes their bundle patches, and loads bundled plugins from the executable's virtual filesystem. Because operating-system symlinks cannot enter that filesystem, packaged launches maintain small real ESM proxy packages under $DSH_HOME/profiles/node_modules. Each proxy mirrors explicit runtime exports, records the original package identity, and re-exports the virtual module URL. Built-in rows and external plugin peers therefore share one Cordis/module instance. Native shared libraries and Windows ConPTY addons are packaged with native addons, while ripgrep and the macOS PTY helper remain executable sidecars.

External profile management uses dsh plugin --profile <name> .... That command requires pnpm on PATH; ordinary SDK/profile execution does not.

Build and distribution

From the repository root, pnpm exec tsx scripts/build-exe-for-python-sdk.ts verifies the closure, builds packages, deploys a symlink-free tree, packages the selected target, and syncs the executable and sidecars into this module. scripts/build-python-release.py stages release-shaped wheels at the root repository version and pins deepseek-harness-sdk to the exact runtime version.

The installed-wheel smoke creates a clean virtual environment outside the checkout, proves distribution and executable provenance, then exercises default and customized SDK profiles, external plugins, MCP, native tools, direct JSON-RPC, committed snapshots, and the real provider on trusted runs. See the Python contributor workflow and installed-wheel testing decision.