Publish one lane-symmetry witness bank per rack stage

[tamashi095]

Publish one lane-symmetry witness bank per rack stage

Authority and smallest closable outcome

Parent: #559 RT6. Companion tracker: #560. Base and current main are
898bdc94b0143288049397629f3afeded384f8c2.

Lane A owns this low-level render-path slice. Lane B independently owns #705 and
all AudioWorklet qualification/pin work. #703 is a passive SOURCE PASS parent,
not a second implementation slot. This issue and active lane-B #705 occupy the
two shared implementation slots.

Sol HIGH coordinates. Astra XHIGH implements because this changes render-time
low-level dispatch. A separate Astra LOW reviewer performs scope review and the
adversarial verdict for every implementation attempt. Agents are bounded
assignees and do not own the issue.

The smallest closable outcome replaces the collapse witness's lanes × slots
virtual calls at the BankChain → BankStage boundary with one fixed-width
lane-witness publication per visited rack stage, then combines those witnesses
locally. Nested processor forwarding outside rack is an unchanged residual.
The issue changes no DSP arithmetic, render ordering, queue semantics, PCM,
public ABI, session schema, effect contract, artifact, pin, benchmark, or
performance budget.

Exact-path ownership

Product and inline tests:

crates/rack/src/lib.rs

Decision record:

.github/ISSUE_SPECS/709-publish-one-lane-symmetry-witness-bank-per-rack-stage.md

Coordinator-only concise disposition rows in #559/#560 are synchronized outside
the implementation checkout. No other path is owned. If a correct solution
requires another crate, generated artifact, benchmark framework, policy change,
or public contract, stop and split it into a new stateless issue.

Current fact pattern

BankStage::lane_symmetry(lane) is a virtual query. BankChain::lane_symmetry
walks every active slot for one lane, while all_lanes_symmetric,
all_lanes_preserve_agreement, symmetry_counters, and
active_lane_eligibility walk lanes through that method. On the armed collapse
path, the dispatch therefore performs a virtual call for each visited
lane/slot pair even though lane width is fixed at four or eight and each stage
already holds event-maintained witness state.

Production BuiltinStage implementations outside this issue's ownership can
forward lane_symmetry into their own boxed processor traits. #709 does not
remove or measure that nested dispatch. A bulk BankStage default must preserve
each existing implementation's lane_symmetry override through the concrete
implementation's default-method instantiation; it may not substitute an
unconditional declined bank for already classified external stages.

BankChain::run must continue to call every active slot's begin_block before
reading a witness. That ordering makes an admitted live-channel record affect
the first sample of the drained block and prevents an addressed one-channel
retarget from being rendered collapsed. Designed terms may remain prepared or
cached; live terms must remain current after the drain.

The original audit location and cost classification are hypotheses, not current
measurements. Acceptance is structural and behavioral. No timing or speedup
claim is authorized.

Product contract

1. A rack stage publishes the witnesses for the fixed maximum of eight lanes
   through one stage-level BankStage virtual query. A private
   [ChannelSymmetryWitness; 8] or byte-equivalent representation is acceptable;
   it must not allocate. The supplied valid width and slot-active mask bound the
   publication: W4 never queries lanes 4–7, and identity lanes never cause a
   query that the existing walk skipped.
2. An active collapse decision invokes each visited active BankStage at most
   once to obtain its lane witnesses across both eligibility and subsequent
   agreement-preservation evaluation. It must not perform a second aggregate
   query when eligibility declines. The chain combines the single aggregate
   locally for W4, W8, partial cohorts, identity slots, inactive lanes,
   eligibility, and agreement preservation.
3. begin_block remains complete and ordered before witness publication. A live
   update drained for block N changes block N's eligibility.
4. Identity slots contribute nothing. Inactive lanes remain declined and never
   become accidental collapse candidates. The stage-level default delegates only
   the supplied valid, active lanes to the implementation's existing
   lane_symmetry override, preserving external classified stages. An
   implementation that never classified lane_symmetry still inherits its
   conservative declined result.
5. Mono-collapse arming, forced-off behavior, recovery, channels_agree,
   desymmetrization, transition counters, gather/scatter selection, fault
   propagation, and observation/report/latency state retain their existing
   behavior and order.
6. Render remains allocation/free, lock, I/O, logging, syscall, and structural
   mutation free. No new data-dependent unbounded work is permitted.
7. Existing public evidence helpers retain their results. A private helper may
   share the aggregate, but no public API expansion is required.

Attempt and checkpoint discipline

The current five-attempt maximum applies. Each attempt is one coherent
implementation pass followed by one separate Astra LOW adversarial verdict. A
failed prerequisite, compile, test, policy, portability, allocation, behavior,
or evidence gate stops that attempt. No gate may be weakened. After attempt five
fails, preserve evidence and hard-stop this issue; no disguised sixth attempt.

Astra XHIGH edits only the owned product path and this issue record. It stops at
a coherent compiling checkpoint for Sol to audit, commit, and push before any
revision. Raw targets, compiler streams, binaries, and temporary evidence remain
outside Git.

Objective gates

Before implementation, Astra LOW must confirm exact main/branch/spec/GitHub
identity, exact path ownership, live slot independence from #705, and that the
current source still has the stated virtual-call shape.

Each implementation attempt must provide:

1. Focused W4 and W8 tests proving exact lane-witness results for full and partial
   cohorts, inactive lanes, identity slots, mixed eligible/ineligible stages,
   live-channel drain changes, and conservative defaults.
2. Instrumented private test stages proving the entire armed collapse decision,
   including a declining eligibility result followed by agreement-preservation
   evaluation, uses at most one BankChain → BankStage bulk virtual call per
   visited active stage. The gate also proves W4 never queries lanes 4–7 and
   identity lanes introduce no query. It must fail under restoration of the old
   outer-boundary lanes × slots dispatch shape. Nested builtin-processor
   forwarding is explicitly outside this structural claim.
3. Existing mono-collapse PCM/state/transition/fault tests, including disengage,
   recovery, forced-off, observations, bypass, and exact operation order.
4. A render allocation gate covering the changed armed and declining paths.
5. cargo test -p rack in debug and release-unwind, strict Clippy for rack,
   formatting and exact diff review.
6. Workspace policy, realtime dependency policy, realtime mutation gates, and
   supported native x86-64-v3 plus Wasm scalar/simd128 compilation appropriate
   to the changed crate.

Astra LOW independently reviews the exact pushed checkpoint, reruns the
claim-discriminating focused gates, and records PASS or FAIL. Source PASS grants
no timing, allocation reduction beyond the tested render gate, artifact, pin,
PR, merge, or delivery claim.

Delivery boundary

After SOURCE PASS, Sol performs exact-head/current-main review. If the rack
change is in the browser artifact dependency closure, lane B alone owns any
separately numbered AudioWorklet applicability/qualification and pin decision;
this lane-A issue remains passive while that bounded work runs and does not
consume an implementation slot.

Required PR qualification, guarded live head/base merge, post-main
qualification, exact GitHub synchronization, and clean delivered-worktree
removal follow the repository workflow. Failed worktrees, branches, commits,
and evidence are preserved.

Scope review record

Initial Astra LOW review at pushed brief 757bb598 returned SCOPE FAIL
without implementation or attempt consumption. The source fact pattern and
rack-only boundary were valid, but the virtual-call claim accidentally included
nested builtin-processor forwarding outside the owned path. This amendment
limits the claim to BankChain → BankStage, preserves external overrides,
bounds publication by valid width and the slot-active mask, and requires one
aggregate to serve both eligibility and agreement preservation. Fresh Astra LOW
exact-head review is required before implementation.

Attempt 1 — FAIL

Astra XHIGH supplied the implementation at clean, pushed source checkpoint
95af1e99d564a0e8795500c1bb46b916b18de13d. Raw logs and Cargo targets are
preserved at /tmp/issue709-attempt1-28LQihgQ; no timing, performance,
allocation reduction, artifact, or delivery claim is made.

Commands ran from /home/bl/misofm/engine-rt6-stage-symmetry-witnesses with
CARGO_TARGET_DIR=/tmp/issue709-attempt1-28LQihgQ/target:

Exact command after the target-directory assignment	Result	Log
cargo test --locked -p rack stage_witness_bank -- --nocapture	Exit 0; all 3 claim-discriminating inline tests passed	01-focused.log
cargo test --locked -p rack	Exit 0; 33 inline, 10 console-bank and 4 re-engagement tests passed	02-debug.log
CARGO_PROFILE_RELEASE_PANIC=unwind cargo test --locked -p rack --release	Exit 0; the same 47 tests passed	03-release.log
cargo clippy --locked -p rack --all-targets -- -D warnings	Exit 101; blocking clippy::collapsible_if in the new inline test's WitnessStage::begin_block, crates/rack/src/lib.rs:5092	04-clippy.log

The attempt stopped at that first failed gate without a fix or retry. The
render-allocation harness, workspace/realtime policies and mutation gates,
native/Wasm portability builds, final formatting gate and exact diff review
were not completed. No allocation-harness files were created.

Astra LOW (/root/issue709_astra_low_scope) recorded Attempt 1 FAIL on that
clean, pushed checkpoint: the Clippy log confirms the blocker; allocation,
policy and portability qualification remain incomplete; no SOURCE PASS.
No additional blocking source finding emerged. The reviewer authorized
Attempt 2 solely to combine the nested conditional without suppression,
update this decision record, and rerun the complete required gate sequence
within the same owned paths, preserving Attempt 1 evidence and stopping at
the first failure.

Attempt 2 — implementation gates complete; review pending

Astra XHIGH applied only the combined conditional, without suppression, after
Attempt 1. The correction tranche passed formatting, the three focused tests
and strict Clippy (01-fmt.log, 02-focused.log, 03-clippy.log) before Sol
checkpointed and pushed dbe7ea7be2bfd26da3cd20084179aa3b4a017bca.

The complete sequence below was then restarted against that clean, frozen
checkpoint. Source SHA-256 is
266133f6870f2bf1bfc8d923125605ac840dba9fe3e1ddcb998420a3c822b676.
All 20 gates completed without retry. Only this decision record was edited
afterward; the product source stayed frozen.

Commands ran from /home/bl/misofm/engine-rt6-stage-symmetry-witnesses.
In the table, E expands to /tmp/issue709-attempt2-nTfNNWlH, B to
898bdc94b0143288049397629f3afeded384f8c2, and H to
dbe7ea7be2bfd26da3cd20084179aa3b4a017bca. Unless overridden in a row,
CARGO_TARGET_DIR="$E/target". Logs are under E; full-results.jsonl
preserves each literal argv, environment override, source commit and exit.

Command	Result	Log
cargo test --locked -p rack stage_witness_bank -- --nocapture	Exit 0; 3 focused tests	full-01-focused.log
cargo test --locked -p rack	Exit 0; 33 inline + 10 console-bank + 4 re-engagement tests	full-02-debug.log
CARGO_PROFILE_RELEASE_PANIC=unwind cargo test --locked -p rack --release	Exit 0; same 47 tests	full-03-release.log
cargo clippy --locked -p rack --all-targets -- -D warnings	Exit 0; unchanged configuration warnings noted below	full-04-clippy.log
cargo fmt --check	Exit 0	full-05-fmt.log
CARGO_TARGET_DIR="$E/allocation-target" cargo run --offline --release --manifest-path "$E/allocation-harness/Cargo.toml"	Exit 0; detector liveness and all 24 armed render calls passed	full-06-allocation.log
bash scripts/check-workspace-policy.sh	Exit 0	full-07-workspace-policy.log
bash scripts/check-rack-policy.sh	Exit 0; dependency/safety boundary	full-08-rack-policy.log
bash scripts/check-realtime-policy.sh	Exit 0; 43 marked regions in 12 files	full-09-realtime-policy.log
bash scripts/test-rack-policy.sh	Exit 0	full-10-rack-mutations.log
bash scripts/test-realtime-policy.sh	Exit 0	full-11-realtime-mutations.log
bash scripts/check-realtime-audit-leak.sh	Exit 0	full-12-audit-leak-policy.log
bash scripts/test-realtime-audit-leak.sh	Exit 0	full-13-audit-leak-mutations.log
cargo build --locked --release -p rack --target x86_64-unknown-linux-gnu	Exit 0; repository x86-64-v3 AVX2/FMA pin	full-14-native.log
CARGO_TARGET_DIR="$E/wasm-scalar" cargo build --locked --release -p rack --target wasm32-unknown-unknown	Exit 0	full-15-wasm-scalar.log
CARGO_TARGET_DIR="$E/wasm-simd128" CARGO_TARGET_WASM32_UNKNOWN_UNKNOWN_RUSTFLAGS="-C target-feature=+simd128" cargo build --locked --release -p rack --target wasm32-unknown-unknown	Exit 0	full-16-wasm-simd128.log
CARGO_TARGET_DIR="$E/mutation-target" cargo test --offline --manifest-path "$E/old-dispatch-mutation/Cargo.toml" --lib tests::stage_witness_bank_entire_armed_decision_publishes_once_even_when_declining -- --exact --nocapture	Expected test exit 101 at the required bulk-call assertion; mutation validator exit 0	full-17-old-dispatch-mutation.log
git rev-parse HEAD; git status --porcelain=v1; git diff --check "$B" "$H"; git diff --name-only "$B" "$H"; git diff --stat "$B" "$H"; git diff "$B" "$H" -- crates/rack/src/lib.rs .github/ISSUE_SPECS/709-publish-one-lane-symmetry-witness-bank-per-rack-stage.md	All exits 0; clean exact head, only the two owned paths; complete diff reviewed	full-18-exact-diff.log
cargo test --locked -p builtins --test mono_collapse	Exit 0; 2 existing report/state tests	full-19-builtin-mono-report.log
cargo test --locked -p host-core --test effect_observation every_bank_lane_publishes_its_own_reduction -- --exact	Exit 0; existing per-lane observation test	full-20-observation.log

The implementation publishes one eight-entry witness array per active stage,
bounded by BankWidth and the prepared slot mask. Existing stage overrides
remain the default's source; unclassified stages still decline. The armed
path publishes after all drains and reuses that aggregate for eligibility and
agreement maintenance. The forced-off path retains its lazy publication after
disengagement. The former activity-count test now expects ten constant slot
checks rather than eight: the two additional checks guard stage publications;
its zero lane-mask-inspection assertion remains intact.

The three inline tests cover exact terms, public evidence-helper results,
full/partial W4/W8 cohorts, identity and inactive lanes, default/external-style
overrides, all-drains-before-publication, and the complete armed eligible,
UNBYPASSED-declined and LIVE-declined decisions. Each visited stage is
asserted to publish once across the whole decision, with no direct outer
per-lane query. The external mutation restores lane/slot virtual calls only
in the aggregate; its single run compiled and failed specifically because
bulk counts were [0, 0, 0] instead of [1, 1, 0]. The authoritative checkout
was never mutated. Original/mutated sources, manifest and exact diff are under
$E/old-dispatch-mutation/; mutation-input-sha256.json records their hashes.
The mutation diff SHA-256 is
42232d23c7c4d73a60d928f4c7b4dc672fc40ed9d34ebc32b33300664d17636a.

The external allocation harness uses the public rack API and the inherited
stage bulk default. It first proves alloc/zeroed-alloc/realloc/free detector
liveness (three allocation and three free observations), then runs 12 cases:
W4/W8 × full/partial cohorts × eligible/bypass-declined/live-declined outcomes.
Each case audits its initial collapsed block and its next block after a drain
changes the witness. All 24 armed calls allocate/free zero times, with exact
collapse, agreement and transition assertions. Harness sources, manifest,
lockfile and binaries remain outside Git. Input SHA-256 values are:

• $E/allocation-harness/Cargo.toml:
  b346af2a8a154577fc1e5a77c60e5c62352051a9fe4b76a70d96864c41f19292.
• $E/allocation-harness/src/main.rs:
  ce3e96abff03e4b047c24a192d3c4a3876c0a7d0423586335dd68ad96efe2e1f.

Clippy exits successfully but emits the pre-existing unreachable-path
configuration warnings at clippy.toml:81–82; no suppression or configuration
change was made. Allocation evidence is limited to the tested render paths;
it is not a syscall trace. The Wasm evidence is crate compilation, not browser
execution. Nested builtin-processor forwarding remains unchanged. There is
no timing, speedup, artifact, pin, merge, delivery or SOURCE PASS claim.
Astra LOW's independent adversarial review and Sol's delivery workflow remain
pending; both attempt evidence directories are preserved.

Attempt 2 — Astra LOW SOURCE PASS

Astra LOW (/root/issue709_astra_low_scope) returned SOURCE PASS at exact
clean pushed head ac6cb00ebf2a53ac65ca01a7c6b03855421fe3fb for product source
dbe7ea7be2bfd26da3cd20084179aa3b4a017bca. The reviewer verified upstream
identity, exact GitHub body parity, both owned paths, the complete Attempt 2
evidence, the allocation harness and the old-dispatch mutation. Fresh review
evidence is preserved at /tmp/issue709-low-review-99sx3syb.

With a fresh external target, the reviewer reran:

Command	Result
cargo test --locked -p rack stage_witness_bank -- --nocapture	Exit 0; all 3 discriminating tests passed
cargo clippy --locked -p rack --all-targets -- -D warnings	Exit 0
cargo run --offline --release --manifest-path /tmp/issue709-attempt2-nTfNNWlH/allocation-harness/Cargo.toml	Exit 0; detector liveness and all 24 allocation/free-free render calls passed

The adversarial review found no blocker. The defaulted Rust trait method keeps
existing implementations and overrides source-compatible and changes neither
the exported ABI nor the effect contract. The reviewer confirmed width/mask
bounds, conservative defaults, drain ordering, aggregate reuse, forced-off and
recovery ordering, and the mutation gate's exact discrimination.

Sol fetched origin after the verdict. origin/main remains
898bdc94b0143288049397629f3afeded384f8c2, the issue's original base and the
branch merge base, with no current-main drift. The branch diff remains limited
to the two owned paths. Because rack is in the browser artifact dependency
closure through graph/compiler/host composition, retained AudioWorklet identity
cannot be assumed. Lane B alone owns any separately numbered applicability,
qualification and pin action. This lane-A source PASS grants no timing, speedup,
artifact, pin, PR, merge or delivery claim and does not authorize lane A to
touch AudioWorklet state.

Current-main combined delivery coordination

User routing: Astra LOW implementation, Astra XHIGH scope/verification.
Independent XHIGH scope PASS permits combined delivery with #722 from delivered
main878db254. Admit only the separately accepted #709 and #722 deltas. #709's
rack changes remain owned by #709 and are not repairs or expanded authority
under exhausted #714 or qualification successor #722. All #722 production
additions remain unchanged. Verify the shared rack file as the composition of
accepted deltas; no additional production correction is authorized. Stop on
conflicts or unexpected source drift. Preserve #713 resident-input machinery.

Root checkpoints each history merge separately. Then run the existing rack
suite, meter tests, graph resident/executor selectors and compiler resident
selectors in debug and release-unwind, formatting and realtime policy. Retarget
and rerun only the existing #709 and #722 allocation harnesses once to establish
joint-checkout behavior, including live detectors. No new harness/full campaign.
XHIGH integration PASS precedes one root-owned shared artifact qualification
and PR/main pair. Each issue retains separate acceptance and closure evidence.
No timing, full-RT10, nested-forwarding removal or publication claim.

Preserved-history integration checkpoint

Accepted #709 history4c165c1f merged cleanly onto delivered878db254. Only the
owned rack/spec paths enter this checkpoint. The admitted source patch matches
the accepted branch patch; #713 resident-input machinery is preserved and
stage witness publication remains after drains in common run_with_input.
No new production correction. Joint integration tests await the separately
checkpointed #722 merge; this is not integration or delivery PASS.

Joint current-main qualification checkpoint

Joint source cbc3c4f passed all twelve focused
commands. Each debug/release-unwind profile passed rack50, meter9, graph
resident2, executor/order1 and compiler resident2 tests. Formatting and realtime
policy passed. Existing #709 allocation harness proved detector3/3 and24
allocation/free-free render calls. Existing #722 harness proved detector1/1,
zero allocations/frees on accepted and declined paths, correct dispatch counts
and queue overflow/publication counters. Copied harness sources/locks are
unchanged; locked offline metadata resolves their local dependencies to the
joint checkout. Actual commands, environments, exits and source identities
are external at /tmp/joint709722-gates-itstq384/. No retry or source edit.

Independent XHIGH SOURCE COMPOSITION PASS reconstructs9573fe16 as the disjoint
union of accepted #709 and current-main/#713 edits, then removes the exact
three #722 rack insertion blocks from joint source to recover9573fe16 byte
for byte. Five other files exactly match accepted #722; merge parents and
clean source verified. Final joint receipt review precedes shared artifact
qualification and PR/main delivery.

Joint integration PASS and provisional artifact

Independent Astra XHIGH accepts joint headb823abb0: exact source composition,
all twelve focused gate receipts, both retargeted allocation harnesses and
tested source identities verified without reruns. Root's single repin-report
invocation then exited0 with digest ea8f843b254bfc96c277f22d4946db0c33555a281113e221d17f8ec6067a468b.
This is recorded as a provisional, unqualified pin; ordinary six-file build
and shared artifact qualification remain mandatory. Probe argv/environment,
source head, status and full outputs are external at
/tmp/rack-meter-artifact-ydlz4bpc/probe.*. No performance or delivery claim.

Shared artifact qualification checkpoint

One ordinary build with repin mode unset reproduced ea8f843b254bfc96c277f22d4946db0c33555a281113e221d17f8ec6067a468b
and the exact six-file set. All five non-Wasm payload hashes match delivered
#710. Every existing qualification command passed once against this artifact.
Let A=/tmp/rack-meter-artifact-ydlz4bpc/artifact:

bash scripts/build-web-audioworklet.sh "$A"
bash scripts/check-web-audioworklet.sh "$A"
python3 -B scripts/check-browser-expected-resources.py --artifacts "$A"
bash scripts/test-web-audioworklet.sh
bash scripts/check-sdk-types.sh
bash scripts/check-sdk-headless.sh "$A"
bash scripts/sdk-package.sh check "$A"
npm --prefix hosts/host-web/qualification run qualify -- --artifacts "$A" --browser all --record-matrix --candidate-commit cbc3c4f7917d5704396fa904b68e0c5c021da610 --self-test-mutations
node hosts/host-web/qualification/generate-matrix.mjs --check

Exact argv, source heads, external target/temp paths, exits, timestamps and
full outputs are preserved at /tmp/rack-meter-artifact-ydlz4bpc/, including
qualification-commands.json and artifact-sha256.json. Static render closure,
boot memory budget, native/browser resource/PCM parity and26 resource negative
controls passed. SDK headless188/188 and publishable-tarball gates passed.
Chromium151.0.7922.34, Firefox153.0 and WebKit26.5 passed all existing gates.
Matrix changes only source/digest lineage; browser floors, resource expectations
and fixture digests are unchanged. No retry, new harness, compiler capture,
performance or physical-device claim.

Both #709/#722 cite this shared artifact evidence. Final XHIGH artifact review,
exact-head PR qualification, guarded merge and exact-main qualification remain
required before synchronized closure. No registry publication.

Independent shared artifact PASS

Astra XHIGH accepts exact pushed401a09f4: product source unchanged from joint
PASSb823abb0; all actual six-file hashes, probe/ordinary/pin agreement, five
unchanged non-Wasm identities, eight successful qualification receipts and
lineage-only matrix diff verified. Both live issue bodies matched the specs.
No rerun or blocker. This appended verdict changes only decision records;
required exact-head PR qualification, guarded merge and exact-main qualification
remain before synchronized closure.

Post-main delivery hold — #724

PR723 merged reviewed98018830 as41ef9b7667a37427e490bfe3abf3b3cebd3e118f.
Required PR qualification34489225879 passed. Main qualification34490147028
failed the process-global alias-observer test counter (12 versus3), while PCM
assertions passed. Independent Astra XHIGH diagnosed test-only interference.
Bounded successor #724 isolates the counter and adds a discriminating regression.
This issue is passive/open until corrected-main qualification passes; preserve
the failed receipt and earned source/artifact evidence. No extra product repair,
repin, benchmark or full-RT10 claim is authorized by that correction.

Delivered after corrected-main qualification — 2026-09-10

PR #723 merged accepted head98018830 as41ef9b76 after required PR run
34489225879 passed. Its original main run34490147028 FAILED the shared test
counter; that receipt remains a failure. Separate test-only #724/PR #725 passed
independent Astra XHIGH review and required PR run34492388152, then merged as
14079d2. Exact corrected-main qualification
34493204026 PASSED, including the unchanged qualified ea8f843b artifact.
No product repair, repin, timing or broader RT10 claim was added by #724.
The issue's accepted scope is delivered; GitHub closure is synchronized with
this upstream evidence record. #714 remains superseded without retroactive PASS.

[tamashi095]

Attempt 1 source checkpoint is pushed at 95af1e99d564a0e8795500c1bb46b916b18de13d. The owned product diff is limited to crates/rack/src/lib.rs. Focused claim-discriminating tests passed (3/3), and the full rack suite passed in debug (47/47) and release-unwind (47/47); formatting and exact diff checks are clean. Remaining allocation, policy, Clippy, and native/Wasm compilation gates are in progress. This is a recoverable source checkpoint, not a SOURCE PASS, timing, artifact, pin, merge, or delivery claim.

[tamashi095]

Astra LOW adversarial verdict: Attempt 1 FAIL at clean pushed 95af1e99d564a0e8795500c1bb46b916b18de13d. Strict Clippy exited 101 on clippy::collapsible_if in the new inline test at crates/rack/src/lib.rs:5092. The attempt stopped immediately; allocation, policy, mutation, and portability gates did not run and this checkpoint earns no SOURCE PASS. No additional blocking source finding emerged. Attempt 2 is limited to fixing that conditional without suppressing the lint, preserving Attempt 1 evidence, and restarting the complete required gate sequence under Astra XHIGH with separate Astra LOW review.

[tamashi095]

Attempt 2 correction checkpoint is pushed at dbe7ea7be2bfd26da3cd20084179aa3b4a017bca. It combines the test conditional without suppression and records Attempt 1 FAIL in the local decision record. Formatting, the three claim-discriminating tests, and strict rack Clippy pass at this head. The complete Attempt 2 gate sequence is now running from the clean checkpoint; no SOURCE PASS or delivery claim is made.

[tamashi095]

Astra LOW independent verdict: SOURCE PASS — Attempt 2 at exact clean pushed head ac6cb00ebf2a53ac65ca01a7c6b03855421fe3fb, now recorded upstream at evidence head 1249553b1c0d2deddafed18b3c239b3356437995. Fresh focused tests, strict Clippy, and the external allocation harness all passed; the harness again reported zero allocations/frees over 24 armed render calls. Current main remains the issue base 898bdc94. This grants no timing, artifact, pin, PR, merge, or delivery claim. Any AudioWorklet applicability/qualification remains exclusively lane B.

[tamashi095]

PR #723 merged at 41ef9b7 after PR qualification 34489225879 passed. Post-main qualification 34490147028 failed the shared alias-observer test counter (12 versus 3). Independent Astra XHIGH diagnosed test instrumentation interference; bounded test-only repair #724 is active. This issue remains open pending corrected-main qualification. Source and artifact evidence remain preserved; no blind CI rerun or new performance claim.