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Evan JarrettandClaude Opus 5
17e25a4df2
The delete path decides whether an io.atcr.manifest record is still wanted by
enumerating the DID's tag records. That enumeration is load-bearing in a way a
tag listing usually is not: records for every one of a DID's repositories share
one collection, so a single page is a per-account budget rather than a per-repo
one. Past it a live tag falls off the end, the digest reads as unreferenced,
and the shared record is deleted out from under a repository nobody touched —
along with its layers on the hold.
Two cases, both mutation-verified:
* the tag that keeps the digest alive sits on page 3. Stopping after the
first page deletes the record. cleanupUntaggedManifest has carried this
hazard in a comment since 1b91768 with nothing asserting it.
* the listing never terminates. Concluding "unreferenced" from an incomplete
read is the dangerous answer, so this must error rather than guess; making
it return what it found so far deletes the record.
Both assert on whether a deleteRecord for the manifest collection was issued,
not on the returned error, because the error is incidental and the deletion is
the thing that cannot be undone.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SeaUS5AFPX9gqCahoLRMRh