docs(contributing): document the blocker axis and merge-next ownership

The who-sets-what table is the day-to-day answer to "can I move this by
hand", and it never mentioned blocker:* -- a whole machine-owned family
added when state:needs-rebase was retired. merge-next was missing too, and
that is the one label whose ownership actually needs saying, because it is
the only one in the machine's vocabulary the machine deliberately does not
set.

Step 6 also read as though requesting the maintainer is sufficient to flip
state:needs-human. It is not: needs-human requires zero blockers, so the
request does nothing on a conflicted or red PR.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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dan-claude-bot 2026-07-20 18:40:12 +00:00
parent 88d83a1aba
commit 8b2ddbdd2d

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@ -32,10 +32,13 @@ labels tell you where everything is without opening anything.
maintainer's review (step 6), and the reconciler flips the label on that
request, because an explicit request is a fact it can trust.
6. **When the round passes, the author hands the PR to the maintainer** by
requesting their review — that request is what flips `state:needs-human`.
With three formal head-current approvals the labels workflow requests it
automatically; when part of the panel is comment-only, reading their
agreement is the author's judgment, so the author makes the request.
requesting their review — that request is what flips `state:needs-human`,
provided the PR carries **no `blocker:*` label**. A blocker means the work
is still yours whatever the round said, so a request on a conflicted or red
PR will not flip it. With three formal head-current approvals the labels
workflow requests the maintainer automatically; when part of the panel is
comment-only, reading their agreement is the author's judgment, so the
author makes the request.
7. **Checks must be green**: `shellcheck`, `bash test/cli.sh` and
`bash test/release.sh` locally mirror what CI runs; the db dump/restore
round-trip (`test/db-integration.sh`) executes in CI where Docker is
@ -94,11 +97,13 @@ machine-owned label just gets corrected on the next pass:
| Labels | Set by |
|---|---|
| `state:*` | the labels workflow ([.github/workflows/labels.yml](.github/workflows/labels.yml)) — recomputed from GitHub's own facts every 15 minutes and on PR events. Never by hand. |
| `state:*` | the labels workflow ([.github/workflows/labels.yml](.github/workflows/labels.yml)) — recomputed from GitHub's own facts every 15 minutes and on PR events. Never by hand. Exactly one per PR: *whose ball is it.* |
| `blocker:*` | the same workflow, from the same facts — *what is in the way.* Any number per PR, or none. Never by hand: applying one does not stop a merge, and removing one does not unblock anything. Fix the thing and the next sweep drops the label. |
| `stale` | the same workflow — 48h without commits, comments, or reviews. `blocked` PRs are exempt: they are quiet legitimately. |
| `scope:*` on PRs | actions/labeler, from the changed paths ([.github/labeler.yml](.github/labeler.yml)). Additive — you may add more, the machine won't remove them. |
| `scope:*` on issues | you, when opening or triaging — issues have no paths to derive from. |
| `blocked`, `release` | you — automation never guesses intent. |
| `merge-next` | you or the agent owning the queue. Which PR lands first is a judgement about how they conflict, so the workflow never sets it — it only **clears** it, the moment the PR stops being something a human could merge. |
| `bug` / `enhancement` / `documentation` | you, on issues only — a PR's type already lives in its title. |
## Issues