The page already sends one request for a group (agents-some), but its one
change ran a sync that, for every skill given as a copy (every WSL agent,
Windows without the right to link, agents set to copies), hashed the copy
and the library's skill twice, in every agent, on every change, and the
page's read hashed the copies once more. Over a WSL distro's share that is
every file of every skill read through 9P each click.
A copy's mark now keeps the hash of what was copied (markCopy). A copy
whose mark says the library skill's current hash, with nothing in it newer
than the mark, is current without its files being read (copyIsFresh);
takeEdits' walk of a copy is not done a second time in the same sync, and
each library skill is hashed once per change (libHash). Copies with an old
mark, or edited since, are hashed as before. Claude Desktop's copies and
project copies use the same check.
Measured in a sandbox (55 skills x 31 files, copies for 10 agents, a
5-skill group switched on for an 11th): the change went from 1.54s to
0.31s and the page's read from 0.66s to 0.25s on a local SSD; the copies
not touched are no longer read at all, which is the cost over WSL.
TestSyncDoesNotReadUnchangedCopies fails without the change ("codex's
copy of pdf was read and made again"): an unreadable file in an unchanged
copy is left alone now. TestCopyFreshByMark checks a changed library skill
is still copied again, an old mark without a hash still works, and an edit
in a copy is still taken. go test -race ./internal/library ./internal/gui
pass, the new tests pass -race -count=10; vet, gofmt, darwin/linux/windows
builds pass. Not run on Windows or WSL.
yetone
a7e7fe2b0f