Fleet triage after the 2026-08-11 storm resolution found agents whose sole
platform had been silently 'retrying' for weeks: revoked Telegram tokens,
Discord privileged-intent rejections, and Photon sidecars that can never
start were all funnelled into the indefinite reconnect queue with no owner
signal (OOF-151/152/153, epic OOF-156).
Two-part fix:
1. Per-adapter classification — by exception TYPE only, never message text:
- telegram: InvalidToken/Forbidden -> telegram_auth_error, retryable=False
(new _looks_like_auth_error, mirrors _looks_like_network_error)
- discord: LoginFailure -> discord_auth_error, PrivilegedIntentsRequired
-> discord_intents_required (both retryable=False); every other path now
sets an explicit code (previously the generic branch set NO fatal info,
which the gateway read as 'probably transient')
- photon: new typed PhotonSidecarStartupError; deps-install failure ->
SIDECAR_DEPS_MISSING and missing node binary -> SIDECAR_NODE_MISSING
(retryable=False); ambiguous startup crashes stay retryable
- email: IMAP/SMTP failures now always set a fatal code;
SMTPAuthenticationError -> email_auth_error, retryable=False (IMAP4.error
is type-ambiguous between bad creds and transient NOs, so IMAP stays
retryable)
2. Gateway escalation — platforms continuously in the reconnect queue past
HERMES_RECONNECT_ATTENTION_AFTER_SECONDS (default 2h, 0 disables) get
needs_attention=true + retrying_since stamped into runtime status, once
per episode, cleared on successful reconnect.
Deliberately NOT a circuit breaker: retries never stop. The auto-pause
mechanism was removed for good reason (transient DNS outages left bots
silently dead); this preserves that and only adds visibility. No new
platform_state enum values — NAS's status schema is strict — only additive
fields.
Unknown exception types always stay retryable: a false terminal recreates
the silently-dead-bot problem, and the escalation path covers
misclassified permanent failures.
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