The retrofit (dfacf05) collapsed a Gotcha into a bidirectional claim —
"deleting a tag never deletes the release wrapping it" — that
references/call-signatures.md never confirms; that file explicitly
marks the reverse direction unconfirmed and "the more dangerous
direction to get wrong." State only the confirmed direction (deleting
a release doesn't delete its tag) and flag the reverse as unconfirmed
with a verification step, on a destructive, irreversible operation.
Found by an independent post-closure audit of #99 (agent-audit +
skill-audit re-run against every changed skill/agent).