Yichen Jiang c432f85c07 fix(subagent-acp): resolve child cwd from the parent session
The ACP backend resolved an unset cwd to the harness process's launch
directory, so a delegated child ran — and announced its ACP session —
in the server's cwd instead of the delegating session's workspace.
Resolve the working directory explicitly: the config cwd override
(made absolute and validated at load), else the parent session
header's cwd (validated at start), failing loud before spawning when
neither exists.
2026-07-19 15:23:17 +08:00

DeepSeek Harness

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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:echo     # keyless mock-model REPL
pnpm run demo:repl     # readline coding agent (needs DEEPSEEK_API_KEY)
pnpm run demo:tui      # full-screen TUI coding agent (needs DEEPSEEK_API_KEY)
pnpm run demo:cordis   # self-referential 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.

Description
DeepSeek Harness
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