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https://github.com/deepseek-ai/deepseek-harness
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083af62785
Two findings on the ACP backend: Blocking: cancel() only sent session/cancel, so a child that ignores the notify or wedges the prompt left result hung forever — the model-facing tool awaits result before its finally disposes, so the parent cancellation hung and the child stayed alive, violating the SubagentRun.cancel() contract (result settles aborted). The result path now races the ACP drive against a cancelSettled promise that requestCancel resolves, so result settles aborted the instant a cancel is requested, regardless of the child. dispose() still kills+reaps the process. New MOCK_IGNORE_CANCEL mock mode (receives cancel, never resolves the prompt, never exits) drives a regression proven to hang without the race. Nit: the drive-path catch was an empty broad catch that discarded the error (AGENTS.md forbids). Because cancellation is now handled by the race arm, a rejection reaching the catch is always a genuine child-level error — bind it, flatten to error, and surface the original via a new AcpRunSpec.onError sink that the provider wires to ctx.logger.warn, so a real fault is preserved.
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.