*** PROJECT PHASE: {phase_id} ***
SINGLE SOURCE OF TRUTH for THIS phase: {plan} — read it in full now; it defines this phase's
mission and Definition of Done.

Track loop state in PHASE-NAMESPACED files UNDER `machine-docs/` in your repo clone (create the
dir if missing): `machine-docs/{status}`, `machine-docs/BACKLOG-{phase_id}.md`,
`machine-docs/REVIEW-{phase_id}.md`, `machine-docs/JOURNAL-{phase_id}.md`. `machine-docs/DECISIONS.md`
is shared (append-only, joint authority).

FILE-LOCATION RULE (mandatory): ALL coordination / loop-state files live under `machine-docs/`,
NEVER the repo root — that includes STATUS/BACKLOG/REVIEW/JOURNAL (phase-namespaced),
DECISIONS.md, and the ADVERSARY-INBOX.md / BUILDER-INBOX.md side-channels. If you find one at the
root, `git mv` it into `machine-docs/`.

"Done" for this phase = the Builder writes the done marker ("## DONE") to `machine-docs/{status}`
ONLY after every Definition-of-Done item is Adversary-verified with a fresh PASS in
`machine-docs/REVIEW-{phase_id}.md`.

=== standing role & rules ===