Artifact ce40b2526eb4614527f8cd62e8166314c1e7e7de6b7cd24a8cac4e83a91b91b3:
FrameKind.shun carries a tombstone keyed by the shunned artifact's whole digest (sync SS3.3 L518-525: persistent, repository-local, keyed by complete artifact name). Never interned, so lookup() still means 'the content frame for this hash'; scan rebuilds the set. putShun is idempotent and returns BadKey for any width but 20 or 32 -- checked, not asserted, so a ReleaseFast build cannot append a durable un-openable frame.
pack carries the table forward. Without that the repo's own compaction verb silently drops every tombstone, which would make this slice's durability claim false the first time anyone packs. The pack FILTER is still S2.
storestat and the benchmark restate FrameKind's universe; both now fold from the enum so a future kind fails to compile rather than vanish from the byte accounting. by dmestas on 2026-07-29 16:54:16.
C shun\sS0:\sthe\sdurable\sshun\stable\sin\sthe\slog\n\nFrameKind.shun\scarries\sa\stombstone\skeyed\sby\sthe\sshunned\sartifact's\swhole\ndigest\s(sync\sSS3.3\sL518-525:\spersistent,\srepository-local,\skeyed\sby\scomplete\nartifact\sname).\sNever\sinterned,\sso\slookup()\sstill\smeans\s'the\scontent\sframe\sfor\nthis\shash';\sscan\srebuilds\sthe\sset.\sputShun\sis\sidempotent\sand\sreturns\sBadKey\nfor\sany\swidth\sbut\s20\sor\s32\s--\schecked,\snot\sasserted,\sso\sa\sReleaseFast\sbuild\ncannot\sappend\sa\sdurable\sun-openable\sframe.\n\npack\scarries\sthe\stable\sforward.\sWithout\sthat\sthe\srepo's\sown\scompaction\sverb\nsilently\sdrops\severy\stombstone,\swhich\swould\smake\sthis\sslice's\sdurability\nclaim\sfalse\sthe\sfirst\stime\sanyone\spacks.\sThe\spack\sFILTER\sis\sstill\sS2.\n\nstorestat\sand\sthe\sbenchmark\srestate\sFrameKind's\suniverse;\sboth\snow\sfold\sfrom\nthe\senum\sso\sa\sfuture\skind\sfails\sto\scompile\srather\sthan\svanish\sfrom\sthe\sbyte\naccounting. 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