Eight area-focused reviews (BCD rewriter, multiplexer, response cache,
supervisor + hot-reload, admin + diagnostics, hosting + options, test
suite) plus an Overview that prioritises findings across areas, and a
RemediationPlan that groups the work into three waves with per-item
file:line citations and regression-test sketches.
Findings call out: hot-reload tag-list/cache changes that don't reach the
running multiplexer, a coalescing factory leak that hangs late attachers,
backend-reader head-of-line block on a wedged upstream, stranded outbound
frames after cascade, and ShutdownCoordinator double-stop ordering. Plus
the unconventional 32-bit BCD wire format (two base-10000 digits in CDAB,
not standard binary), unreachable BcdValidationError.DuplicateAddress,
mbproxy.cache.flushed event that's defined but never emitted, and missing
test coverage for Cache.AllowLongTtl.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Joseph Doherty
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