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https://github.com/deepseek-ai/deepseek-harness
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6d02059f9f
Master's "fix(acp): align prompt and workspace contracts" made session/new reject a non-empty additionalDirectories / mcpServers (widening the workspace scope is unimplemented). Add a `reject-extra-dirs` scenario + a `newSessionExpectError` input op that pins this editor-facing contract: the bridge answers with `-32602 Invalid params: additionalDirectories is not supported`. Keyless, deterministic, no model call. (session/load replay — the other new master behavior — needs a two-phase seed-then-load harness and is left for a focused follow-up.)
DeepSeek Harness
Monorepo for the DeepSeek Harness group.
Projects
- DeepSeek Code — DeepSeek's coding agent product.
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:echo # runnable echo-agent example (no API key needed)
pnpm run demo:coding # the real DeepSeek coding agent (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 before package work. Local context lives in packages/ and vendor/.
For agents, follow AGENTS.md.