760bc9aa6a9d3517f6c3e90a910da653652826ce
Round 2 P2: timeoutOf() accepted ANY TimeoutReason, so under nesting — when the upstream handed to deadline() is itself a deadline (the RFC's named tools/execute middleware follow-up) and its outer timer fires first — AbortSignal.any preserves the outer reason and the inner bash/web would report the outer timeout as their own (timedOut / WEB_FETCH_TIMEOUT) though their local timer never expired. Add an optional code to timeoutOf; bash and web pass their own code, so a foreign timeout falls through to the upstream-cancel path.
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: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.
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