Changes touching this path

• the dirty question stops reading every file to answer one boolean, and the two clocks it depends on are not the same clock: a stat cache lands at .loot/<position>/stat-cache as a PositionOwned artifact the store treats as opaque bytes, so nothing derived from it reaches the graph, a manifest, a bundle, the wire or any peer - its version header is a local self-check whose only failure mode is read as no cache, which is the opposite of a compatibility break since an older loot does the full read and gets the same answer. An entry is trusted only when size and mtime match AND mtime is older than the walk's own stamp, so a write inside the walk's tick is always re-read and no granularity is assumed on any platform. What that missed on the first attempt is that the stamp comes from the PROCESS clock and every mtime from the FILESYSTEM clock, which on Windows are the precise and coarse system times about 15.6 ms apart - warm scans hit nothing at all, because the cache file's own mtime read as older than the stamp it carried. A one-second margin fixes it in the safe direction and is self-healing, and gross skew is caught separately by discarding a table whose file is older than the stamp it declares. loot lanes reads a foreign lane's cache and deliberately never writes one: the write would have been correct, and it was refused on a different ground, that ticket-to-lane's runbook promises this verb is read-only and agents run it against live lanes to read the claim board. So TreeScan has two named doors, read for a position walking its own tree and peek for one walking someone else's, and which a seam takes is spelled at the call site rather than inferred from the store it was handed. The cost of that refusal is named rather than hidden: with lanes warm, which is the steady state since every lane's session runs status, it is 13.6 to 16.8 percent against the 16.1 the write bought, and with every lane cold it falls to 4.5, which is not the cache at all but the seam now hashing each plaintext once where it hashed twice. status --porcelain is 24.8 percent. And the pin that #1536 asked for cannot do the job it was asked for: delete the cache and get the same answer passes on every answer assertion even when the cache is never consulted, because an inert cache answers correctly by doing all the work - what distinguishes them is counting hits and reads, whose cold zero-and-N is its own positive control, and a poisoned row that keeps size and mtime, carries a wrong digest over a genuinely clean tree, and must answer dirty. Three of this ticket's premises were also wrong: the 46 ms status baseline was measured where status never walks the tree, since with no working change it returns at is_clean, so the gap over the control was never the tree read; the byte read is a quarter of what holds these verbs up rather than the whole of it; and human status on a dirty tree cannot benefit at all, because rendering a per-path delta needs the plaintext (#1669) 96d922e8 · dbf3dbe6…

Renames are not followed. loot's tree maps a path to an address, so a rename is a delete and an add. This list is the history of the name, not of the bytes.