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https://github.com/deepseek-ai/deepseek-harness
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f2c333e510
The seam shipped without its own RFC — the reconstructable-requests RFC was amended with the mechanics, but the decision record (why a compose-once frozen prefix, and what the per-request before/after shape, a system-prompt section, a durable history opener, per-turn composition, and a dedicated session event each lost to) had no home. Implemented lifecycle, feature class, dated to the first commit of the work.
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.