The composer middleware is now identification-only: it resolves the
user's @tags against the live roster and annotates the draft with who
they refer to (profile, friendly title, device for cross-connection
rows). The agent decides whether to contact them and does it through
its message_agent tool — one send path, composed messages only.
Deleted the renderer's entire parallel delivery transport:
deliverRemoteRosterMentions / pollRemoteDmReply /
ensureRemoteCanonicalChat and the injected shellout instructions
('[@mention handoff — run hermes -p …]' and 'Desktop is delivering …
over Connections'). This retires the whole invocation bug class at the
source instead of sanitizing it: no verbatim user text is ever
forwarded by the renderer (#91397), and no shell command is ever
composed from prompt text (#91304, #91339 shape).
Tests: mention-identification.test.mjs replaces the two delivery-era
files — identification note shape, no-shellout/no-delivery containment
(sabotage-verified: re-adding a renderer delivery call fails 2 tests),
poisoned-title inertness, pass-through for unknown @s, and a source
contract pinning the deleted machinery. hide-bots + roster-cache-key
harnesses re-pinned to the new contract. 390/390 green.
Teknium
729782d058