kingwl
c5cb7da364
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.
plan-acp-agent
The coding agent as an ACP server with session modes composed — the live composition of the plan-mode RFC.
What it demonstrates
session/new advertises the mode picker (default / plan); the editor's session/set_mode switches the session, applied at the next turn boundary. In plan mode the model sees only the read-only allowlist (read, todo_write, exit_plan_mode here — this tree loads no web tools) plus the plan-mode guidance section, and every call outside the allowlist is denied at tools/pre-execute with a reason that steers it back to planning. The model leaves by presenting its plan through exit_plan_mode: the plan markdown renders as the tool's call card, the review question arrives as an elicitation form (approve / keep planning, free text welcome), and a keep-planning answer returns the feedback to the model verbatim.
Run
pnpm run demo:plan-acp # needs DEEPSEEK_API_KEY (repo-root .env works)
Drive it from Zed or any ACP client; the mode picker appears on the session. Switching back to default (or an approved exit_plan_mode) restores the full toolset on the next step.
Tests
pnpm run test:snapshot replays three scenarios keyless. modes-advertise (authored): the modes advertisement on session/new, both session/set_mode round-trips with their optimistic current_mode_update, and the loud rejection of an unknown mode id, as committed wire bytes. plan-mode (recorded, the header pin): the full arc — setMode(plan), the plan-shaped initial header, the plan presented via exit_plan_mode, a scripted elicitation approve, the in-turn mode/set back and the widened fallback header, then a real edit under the restored toolset. plan-mode-reject (recorded): the keep-planning branch, whose corrective isError carries the reviewer's free-text feedback verbatim and leaves the session in plan mode. The gate's deny texts stay pinned at the unit tier (packages/mode/mode/tests).