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ctx.sandbox (dsh-sandbox): confine(argv, policy) returns the argv to spawn instead — wrapped so the process and its children run confined — plus the enforcement completeness and the backend denial/runner-failure dialects; no usable backend throws the fail-closed SANDBOX_UNAVAILABLE. Policy rides per call. dsh-sandbox-local selects by platform and caches the verdict: multi-candidate chains probe FUNCTIONALLY in preference order (Linux: bwrap → the registry-installed node-addon-landlock-run launcher), a sole candidate is selected unprobed (darwin: sandbox-exec/Seatbelt) and fails closed at execution via runnerFailureSignatures; win32 is a reserved empty chain. Profile parity is honest per backend (documented temp-area and ABI differences; enforcement full|partial is a structured result fact). CI: the sandbox-e2e matrix proves real-kernel confinement per rung (bwrap, Landlock per architecture through the registry-installed launcher, Seatbelt), failing on a silent all-skip; the packed-install rehearsal installs the launcher family from the registry and asserts the binary executable apart from kernel enforcement.
DeepSeek Harness
English | 中文
The DeepSeek Harness SDK is a plugin-based SDK for building agent harnesses.
Development
This monorepo is built on the Cordis framework (vendored as source under vendor/), microkernel-style: everything is a plugin.
pnpm install
pnpm run test # vitest
pnpm run demo:repl # REPL agent demo (needs DEEPSEEK_API_KEY)
pnpm run demo:acp # ACP server agent demo (needs DEEPSEEK_API_KEY)
For humans, start with the development guide for local setup, hooks, environment variables, and quality gates, then read the architecture design and documentation graph index before package work. Local context lives in packages/ and vendor/.
For agents, follow AGENTS.md.