The client half exists in monorepo-mobile as of f29774a, with OffChat as the
proof of concept, so this document is no longer purely forward-looking. Adds a
section covering what shipped, the two places the advice here was wrong about
the client — one key per app is not possible on mobile (shared-session puts one
credential in front of all nineteen apps), and signout was never the problem,
distress signout was — and two decisions worth a second opinion: clearing the
credential on 401 only, and leaving the traded-in JWT to expire rather than
blacklisting it, because that handler clears vault tokens keyed on the user.
docs/mobile-api-keys.md — what the server accepts, what changes in
monorepo-mobile, and the 401-vs-403 distinction, which is the one that
bites: clearing a good key on a 403 turns a member's missing capability
into a logout loop they cannot escape.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>