Without --plan, Phase 1 resolved a planner session automatically and globbed
<workspace_root>/.agents/reports/<planner>/plan-*.md for the newest file by
mtime, handing it to the Creator as "the plan already agreed on". Both keys are
wrong: the report directory belongs to a session, not to this task, so other
issues' plans pile up in it, and right after a clone or checkout mtime is
checkout order. 47 such plans are committed in this repository, so an ordinary
run could silently implement against an unrelated design.
Reuse is explicit now. --plan-file <path> is the only way to load an existing
plan; it is resolved against the control root, checked before a single job
exists, and refused if the file is missing, not a regular file, unreadable or
empty (an empty file would quietly turn into a "no plan" prompt). It cannot be
combined with --plan, and --review-only warns and ignores it because no
implementation job is delegated there. The implementation prompt itself is
unchanged, so the Creator's contract does not move.
Phase 1 now says which plan it loaded and where from, or that it loaded none.
The legacy shell loop (MAM_LOOP_PY=0) loses the same auto-load and rejects
--plan-file rather than duplicating the check on a path that is on its way out.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
GodopuandClaude Opus 5
a28711cccf