carlos / contra Public

intent: point the recovery decision at its open question

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Paul Campbell pushed by paul@keymail.dev e601a84e37473d09db723ebd84e1d5c75f16702a parent 14ca156
1 file changed, +7 −0
  • AGENTS.md +7 −0
diff --git a/AGENTS.md b/AGENTS.md
index 9b96db6..2e0a00a 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -92,6 +92,13 @@ because paper is the only medium that is not the thing we are replacing.
Secondary reason, not the deciding one: the 1Password Emergency Kit means
this pattern is already understood by the audience.
+The key hierarchy is specified in `DESIGN.md`. **One decision remains open
+there** — whether a 128-bit Account Key is printed beside the recovery
+code — because it would change the promise that a passphrase alone gets
+you back in. Discussion 5. It does not block anything: the KEK branch is
+built with the input present and constant, so adopting it later is a
+re-wrap, not a redesign.
+
### 3. Email exists only as a blind index (Paul, 2026-09-01)
Kass's shape: an HMAC under a server-held pepper. It proves identity for