Step 1 of `2026-05-07-moq-relay-routing-investigation.md` ran a
5× sweep on `HangInteropTest` with per-test moq-relay trace
capture. Failure rate: 3/5, all in
`late_join_listener_still_decodes_tail`. Cross-referencing the
relay trace (`encoding self=Subscribe …catalog.json` on conn{id=0}
at T+2.07 s) with the speaker's `Log.d("NestTx")` lines (only
`ANNOUNCE inbound prefix=''` at T=0; NO `SUBSCRIBE inbound id=0`
in the failing window) shows the relay correctly forwards the
upstream SUBSCRIBE — the bidi just never reaches
`MoqLiteSession.handleInboundBidi`. So the prior plan's
"moq-relay 0.10.x per-broadcast subscribe-routing race"
hypothesis is wrong.
Re-scoped Priority 1 of the closure roadmap to point at
`:quic`'s peer-bidi surfacing path instead. The actual bug is
between QUIC's bidi-accept and `incomingBidiStreams()` flow.
Spotless-formatted Kotlin imports.
Trace artefacts preserved under
`nestsClient/plans/artefacts/2026-05-07-routing-race-disproven/`
so the next agent (QUIC owner) doesn't have to re-run the sweep.
Walks through `moq-relay/src/connection.rs`,
`moq-lite/src/lite/publisher.rs`, `moq-relay/src/cluster.rs` and
`moq-lite/src/model/{origin,broadcast}.rs` to refine the routing-race
hypotheses (`H1` / `H1b` / `H1c`). Documents that even main HEAD
`bdda6bd1` keeps `recv_subscribe`'s synchronous `consume_broadcast`
lookup; commit `bea9b3a` only added `wait_for_broadcast` as an opt-in
alternative and an explicit TODO acknowledging the race in
`moq-relay/src/web.rs:325`. So Step 4 (version bump past 0.10.25)
won't yield a fix — the most viable upstream change would convert
`recv_subscribe` to `origin.wait_for_broadcast(path).await` with a
bounded deadline. Concrete trace from Step 1 still needed to pick
between the surviving hypotheses.
`NativeMoqRelayHarness` gains a `testTag` parameter on `shared` /
`resetShared` and writes the relay subprocess's combined stdout/stderr
to `nestsClient/build/relay-logs/<tag>-<seq>-<ts>.log` whenever
`-DnestsHangInteropTraceRelay=true` is set. The subprocess runs with
`RUST_LOG=info,moq_relay=trace,moq_lite=trace,moq_native=debug` so the
per-broadcast subscribe-routing path investigated in
`nestsClient/plans/2026-05-07-moq-relay-routing-investigation.md`
(Step 1) becomes visible.
`HangInteropTest` and `BrowserInteropTest` now expose a JUnit 4
`TestName` rule and forward the method name into `resetShared`, so
each scenario's per-method log is easy to locate by name when
cross-referencing with the speaker-side `Log.d("NestTx")` lines
already captured in JUnit XML's `<system-err>`.
Plans the path from 'infra shipped' to 'full coverage with
correct behaviours'. Five new plan docs in nestsClient/plans/:
1. 2026-05-07-t16-closure-roadmap.md — index + priority order.
Three sequential steps + one independent track.
2. 2026-05-07-moq-relay-routing-investigation.md (Priority 1)
— root-cause the moq-relay 0.10.x per-broadcast subscribe-
routing race. Step-by-step: capture relay-side trace, write
minimum reproducer, file upstream OR bump moq-relay version.
Smoking gun + hypotheses already in place from the
late-join-flake investigation; this plan turns that into
actionable next steps.
3. 2026-05-07-tighten-cross-stack-assertions.md (Priority 2)
— once the routing race is closed, replace the five soft-
pass scenarios in BrowserInteropTest with hard floors.
Lists each scenario, its current soft-pass behavior, and
the proposed hard threshold.
4. 2026-05-07-cross-stack-interop-ci-gating.md (Priority 3)
— re-add the hang-interop + browser-interop GitHub Actions
jobs that were dropped in 6829ab727 / b94737de7. Includes
the exact YAML to restore and a 10/10 sweep stability bar
before merge.
5. 2026-05-07-framespergroup-production-rerun.md (independent
track) — re-run the HCgOY two-phone field tests against
current nostrnests production at multiple framesPerGroup
values to settle whether the test pin (5) and production
default (50) can converge.
Estimated total: 2.5-3.5 days of focused work to fully close
T16. After these four: I7 post-reconnect cliff and I12 GOAWAY
remain open as genuinely upstream-territory items, tracked in
their existing investigation docs.
Claude