Same-day correction to ee2259f. That commit followed the order literally --
"use the tag's own message" -- and the result was an llm-security v8.0.0
release page reading "llm-security v8.0.0" and nothing else.
The defect is structural, not a typo: --create-tag mints -m "<name>
v<version>", so the tag message is mechanical EXACTLY where this helper made
the tag. The tag message is a good source only for tags written by hand.
The right source was already proven on the instance: llm-security v7.8.3's
release body is byte-for-byte its CHANGELOG `## [7.8.3]` section. So the
CHANGELOG is the org's established source, not a new invention -- and all 10
backfilled repos ship one (measured, 10/10).
- extractChangelogSection / releaseBodyFrom: pure, tested. Priority is
CHANGELOG section -> tag message -> empty, and the source is REPORTED so a
run says where the text came from rather than implying it wrote it.
- Three heading dialects are live and all three are covered: `## [6.0.0] -
date`, `## [0.2.0] -- date` (em-dash), `## v1.0 (date)`, and voyage's
`## v5.10.1 -- date -- trailing prose`. The version token matches exactly,
so 0.1.0-pre is not 0.1.0 and 1.1.0 is not 1.10.0. An empty section (the
standing `## [Unreleased]`) returns null so the caller falls through
instead of publishing a blank body.
- backfill gains --repair for the backlog the first cut created. It PATCHes
a PUBLISHED page, so the bar is strictly more informative, never merely
different: no CHANGELOG section means no update, and a hand-written body at
least as long as the section is left alone. Measured: that rule is what
protects portfolio-optimiser v1.1.0 (4750 hand-written chars vs 3704).
Dry-run over the org: 14 release objects would gain real notes, e.g.
llm-security v8.0.0 19 chars -> 10530, config-audit v6.0.0 19 -> 27309.
18 new tests, written red first. Suite 211/211; check-versions 12/12 OK.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>