Relay (X23, X27): the intake key is its own tier (upload and file drops only, RELAY_INTAKE_COMPAT=0 closes it);
a run task needs an Ed25519 signature by the Mac run key over {to, nonce, body sha256, flags} (RELAY_RUN_PUB,
401 without) and an HMAC tag with the target's machine secret that the agent verifies before anything runs;
results and registration are bound to the machine the secret proves (403 on a forged from).
X24: every client and Mac tool sends x-relay-token as a header to /api/relay?fn=; the path token stays for the
phone page only. X25: the agent arms the logon task only for a restart a task asked for and disarms on start
and exit. X26: 30-day retention with blob deletion, feed capped at 100, the dl base as RELAY_DL_BASE held by the
agent, never in a body. X28: GET inbox never acks (POST inbox does), RELAY-REBOOT on its own line and only with a
reboot flag, 120/min and 10 failed auths/min per IP, no username or folder on register, WSL sudo scoped to
apt-get and dpkg with SETENV, no password on a command line. X29: the intake key reaches curl through -K in
upload.sh and both upload-log.bat; tools/ci/curl-header-check.sh fails the class. G14: TZ=UTC in ship-app.mjs
and publish-jobs.sh; tools/ci/commit-tz-check.sh fails the class; history-rewrite.md names the .old-2026-10-05
files as the values in the history. The handler moved to relay/lib/handler.mjs with injected sql and blobs
(relay/lib/blob.mjs holds @vercel/blob) so relay/test/handler.test.mjs drives it without a database:
47 tests across 6 suites, all green.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
