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## Summary Stop charging ephemeral WebSocket activity against the per-minute `Messages` quota. Presence, typing, and observer traffic should not consume the allowance intended for persistable event attempts. - Use the existing `buzz_core::kind::is_ephemeral` predicate (kinds `20000..=29999`) at the second admission gate. All authenticated EVENT/REQ/COUNT traffic still consumes the shared `WsEvents` budget first. Non-ephemeral EVENT attempts remain charged, including attempts later rejected by authorization or validation. - Add bounded `bucket` labels (`messages`, `ws_operations`, `api_calls`) to `buzz_admission_rejections_total`. HTTP changes are metric labeling only. Wire rejection text remains byte-for-byte unchanged, preserving existing client parsers. - Add real-Redis admission regressions and select them in the existing relay integration CI job. No quota increases, identity/keying changes, client changes, new limiter, or deployment. Downstream authorization and fail-closed Redis behavior are unchanged. ### Related issue Duplicate search found overlapping work: open #4912 and closed #4902. They propose the same ephemeral-accounting correction alongside broader wire/client/config changes. The relay fix is a deliberately narrower four-file implementation on the current admission module, with metrics-only diagnostics and real-Redis regression coverage. A separate test-only CI repair is documented below. It does not close or claim to supersede those PRs. Related symptom: #7411. This PR does **not** resolve subscription bursts exhausting the shared WS budget; that budget is intentionally preserved. It also does not establish or fix the cause of HTTP quota exhaustion. ### Testing Validation ran against base `779af8886caae1317b4de962082429867ab61503` plus the exact patch now committed as `70ea0528594e25e6dcb40cd74620bd5ef0177592` (binary diff SHA-256 `5064e1cbb87ecb9eff10336bae14b912cac442e1edc247aa4f093de30e4f9717`). Normal commit/push hooks subsequently passed on the committed head, without bypass. Passed: - Independent review and rerun: 11 rejection tests (including real Redis) plus 4 admission tests. Covers ephemeral range boundaries, human/agent budgets, persistable events, ephemeral admission after message exhaustion, mixed EVENT/REQ/COUNT flood exhaustion, Redis outage, exact wire payloads, and bucket metrics. Three mutations were caught: reintroducing ephemeral billing, exempting stored events, and bypassing WS rejection. - `just test-unit`: all 17 runner groups; `just test-integration`: all 3 runner groups. Auth integration reported no tests; ignored database integration tests are not claimed as executed. - Relay all-target Clippy, formatting, workflow actionlint, pre-commit/signoff hooks, and all applicable pre-push lanes (`push-head-scope`, `branch-skew`, `file-size-check`, `rust-tests`, `desktop-tauri-checks`). - Release relay/CLI/admin build and isolated release-binary workflow: channel creation, signed root/reply sends, exact-ID readback, and thread retrieval. Debug and release WS smoke admitted three presence events with a Messages limit of two, admitted two persistable events, rejected the third, still admitted presence afterward, and rejected author mismatch. Debug Prometheus confirmed `bucket="messages"`. **Outstanding validation gap:** the additional `cargo test -p buzz-relay --no-fail-fast` run was not green: library 1,055 passed / 2 failed / 100 ignored; binary 13 passed / 1 ignored; boot integration 9 passed. Failures were `api::mesh_demo::tests::demo_join_forwarded_arm_round_trips_echo` (504 instead of 200) and `telemetry::tests::trace_context_lookup_does_not_enable_callsites` (tracing assertion). Neither failure was diagnosed or repaired in this scope, and this PR does not claim a fully green package suite. `just ci` was not run locally; hosted CI remains to validate the PR. All runtime tests used isolated local services. Owned services have been stopped; nothing was deployed and no production data was touched. ### CI cancellation-test repair At the original relay head, hosted Rust unit tests failed on the pre-existing cancellation harness race tracked in #4945. With owner authorization, this PR now adapts the one-file repair from #5003 (original commit `cc8dc6124957acfd67fe2336396b58e0ff43ec60`), preserving author credit. #5003's old hosted workflows failed without starting jobs; their status is not used as validation evidence. Commit `55fe5f16618a51d03ad48d6f2f97b2f8b463607a` holds the fake provider response until a successful cancellation acknowledgement, then replays all pre-acknowledgement usage/prompt frames in order. It retains the cancellation and usage-before-response assertions and explicitly requires prompt completion. No production code changes in this follow-up. Validation on parent `70ea052859` plus this test patch, before the pre-commit-only assertion wrapping: full `cargo test -p buzz-agent --no-fail-fast` passed (715 tests, one ignored); 100 targeted repetitions passed with four concurrent workers; all-target buzz-agent Clippy passed. The unmodified parent also passed 50 local repetitions, so this is not claimed as a local reproduction of the intermittent CI failure. The synchronization defect was confirmed from the source, original CI log, and #4945. Hosted CI must validate the updated head. Independent source review cleared exact commit `55fe5f16618a51d03ad48d6f2f97b2f8b463607a`. Normal pre-commit/signoff and all applicable pre-push hooks passed without bypass. The original relay-package mesh-demo and telemetry failures remain disclosed above and were not modified by this test-only repair. --------- Signed-off-by: Wes <wesbillman@users.noreply.github.com> Co-authored-by: Carl <32a2e2c9d428ee08902cab75d956da2c1d235a22d4766b0dd4138bf6e2e5db1d@buzz.block.builderlab.xyz> Co-authored-by: kiranmagic7 <262980978+kiranmagic7@users.noreply.github.com>