The six ceremony actions in ci.yml are step `uses:` references, and a bare
step reference resolves through FORGEJO__actions__DEFAULT_ACTIONS_URL — which
this forge points at code.forgejo.org, where heavy-duty/ceremony does not
exist. Measured with a registered runner on the instance: `git clone
https://code.forgejo.org/heavy-duty/ceremony` -> 404, so every guard fails the
moment rig's own CI runs on the forge. Those six become absolute.
The two reusable-workflow callers do NOT move, and this is the correction to
the original "make all eight absolute" ruling. A reusable `uses:` never
consults DEFAULT_ACTIONS_URL; it resolves against the runner's own instance,
so both callers already fetch ceremony from this forge and expand. Absolutising
release.yml's would actively break CI: ceremony's docs-sync reads rig's pin out
of that one line with a grep anchored to the bare spelling, so the prefix makes
the pin invisible and docs-sync exits 1 with "no pin line ... found none".
actions/checkout@v4 stays bare in all three places — the mirror serves it, and
that is exactly what DEFAULT_ACTIONS_URL is for. The pin stays @0.3.0
throughout; no .ceremony/ edit, no pin bump.
test/cli.sh pins all three shapes, including the docs-sync grep verbatim, so
ceremony's parser and rig's caller cannot drift apart silently.
Refs #112
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>