c5cb7da36404e57edb83a5aa58305acfcab861f5
The with-key recording session the RFC deferred. plan-mode is the 'plan' header class's pinning scenario and necessarily carries BOTH header shapes verbatim: the plan-shaped initial snapshot and the widened fallback snapshot the approved exit produces mid-turn — so the suite factory's pin guards relax from exactly-one to at-least-one header (the classmates' uniformity anchor is the pin's FIRST header; transition headers are legal only in the pin, matching the sandbox stack's precedent). plan-mode-reject pins the keep-planning branch: the corrective isError carries the reviewer's free-text feedback verbatim and the session stays in plan mode, one header, uniform with the pin. Recording notes, encoded in the prompts: the model is pinned to RELATIVE paths (a recorded absolute temp path neither replays on another host nor normalizes — the normalizers scrub the run's own cwd, not the recording's), and the recorded model never calls a filtered tool, so the gate's deny path stays pinned at the unit tier — that refusal is the behavior the soft layer exists to produce. The gen-tool-catalog meta-test pins exit_plan_mode in the harvested schema list.
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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