The body of _process.yml is read from dev (@dev, #623). After "Перейти на
ветку задачи" the working copy of job prepare is the task branch, and a
show/ship branch with a clean merge is not rebased before review: its
scripts/ may lag dev or be replaced. #749 fixed job integrate; prepare
still ran four control scripts from the material — the issue-body digest
for the anchor, --reuse of a green verdict (#499), validate-gate (#510)
and the spec-change check (#517). The material decided its own admission:
a branch whose review-doc-guard.mjs prints reuse=true merges without the
model. model_review took model-usage.mjs from the material too: a lagging
branch has none, and the publication silently wrote reason=missing.
Now prepare extracts one snapshot right after setup-node, before the
branch switch: `git rev-parse origin/dev` once and `git archive <sha>
scripts .github/workflows/validate.yml`, so the git fetch of the track and
rebase steps cannot mix versions. Every repo script of the job runs from
it via TOOLS — the track step and the rebase guard lose their own
extractions. The SHA goes out as job output tools_sha; the usage step of
model_review archives the same commit inside itself, so a snapshot failure
is a failure of the reporting step (continue-on-error), not of the stage.
The model session runs on that runner, so the usage line stays untrusted
input parsed strictly (#556, #737).
withMaterialAnchors is idempotent: a repeated call drops the separator the
previous call wrote instead of piling up `---` lines.
Tests: test/process-prepare-tools.test.mjs — the job contract (no step
calls scripts/ from the working copy, one pinned archive before the branch
switch, tools_sha reaches model_review) and the steps as they are, on real
bash and git: a branch behind dev without model-usage.mjs and with a
substituted review-doc-guard.mjs; the anchor digest, reuse and the spec
check come from dev, the usage line is data even after dev moved. Red on
the old workflow: all four. Harnesses of process-track, rebase-generated,
review-doc-guard and model-usage take the prepare snapshot. Three registry
mutants (reuse from the material, usage from moving dev, separators).
Canon: PROCESS.md §10.4 «Скрипты конвейера — из dev» covers prepare and
the usage step; «Расход модели» names it a pipeline step, not the reviewer's.
Issue: #765
User-Visible: no
claude[bot]
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