The A/B/C axis split was issued to two repos on 2026-07-25 and taken up as
binding by one of them before any durable record existed: it lived only in
this repo's gitignored STATE.md. Other code has changed because of it, so it
needed to travel.
Interpretation only. Changes no normative text, introduces no requirement,
and says so at the top — where it and the spec disagree, the spec wins. Each
axis is already stated normatively in one of the two specs; what was missing
was a single place saying there are three and how to tell them apart.
Scrubbed of coordination narrative: no repo is named and the worked examples
are anonymised. commons is published openly and subtree-consumed, so another
repo's defect does not belong in the text.
All line anchors grep-verified (§7 V1-V4). One anchor I had cited externally
was wrong — 'never by directory enumeration' is method-spec.md:82-83, not
:70-73 — corrected here and reported to the consumer that received it.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XYkLsRfSBBUjULS219Fy8X
