kind-isolation :testkit: a battery that invokes the published conformance suite is a live battery

[MattJackson]

GATE-BURN (/status row 88, spec exit point 3: cargo xtask gate --all green on predev).

What

kind-isolation:testkit (ship twin) flagged busbar-plane-decisions battery-ignored. That was a false positive: the coordinator ruled (b) on 2026-10-07 that it's a gate defect, not a case for a rename.

crates/busbar-plane-decisions/tests/conformance.rs runs busbar's published suite through busbar_plugin_loader::conformance_suite!. The macro expands to the suite's #[test] entries (crates/plugin-loader/src/conformance/mod.rs:1445-1485). The battery counter read only literal #[test] attributes, so it scored this running battery as one with no entry. In the merge-group verdict for d526455, nextest PASSes busbar-plane-decisions::conformance the_linked_and_the_dropped_in_door_are_one_plugin and red_*.

Fix: the counter counts every invocation of the published macro that names a door: subject. Two cases stay battery-ignored: an invocation with no subject, which expands to nothing, and a file that defines its own conformance_suite macro, which isn't the published suite.

Self-test, 3 new cases:

• green: a live invocation over a door;
• red: an empty invocation;
• red: a file-local shadow macro.

Proof (Latchkey, base predev d07eaf7)

• cli-2ecf6a17: kind-isolation-ship :testkit now has only no-implementor crates/hooks-ranking, which P5: extract webhook-signature, hook-ranking, auth header/sigv4/oauth; delete plane-example; outbound auth conformance suite #484 deletes. battery-ignored is gone.
• gate --all: no row worse than predev.
• gate kind-isolation-ship --selftest: 144 cases, exit 0. gate kind-isolation --selftest: 238 cases, exit 0.
• cargo clippy -p xtask --all-targets -- -D warnings: clean. fmt: clean.
• cli-e50054e2: cargo test -p xtask, unfiltered, exit 0. That includes selftest_runs_every_registered_gates_red_proof, which passes under cargo test; the hop's nextest budget for it is xtask at opt-level 2; self-test budgets re-measured; over-budget batteries re-taken serially #520.

[github-actions]

promote into predev: BOARD @5d3cdc33b: 1 failing test row(s), 12 DENY row(s)

Failing tests (1)

crate	test	step	first panic
``	nextest xtask::cli::selftest_runs_every_registered_gates_red_proof	test:workspace

DENY rows (12)

gate	row	detail
construction	one-pick-site	3 production call site(s) of 'pick_among(' (ceiling 2): crates/busbar-kernel-egress/src/walk.rs:298; crates/busbar-llm/src/engine/exhaustion/fallback.rs:120; crates/busbar-llm/src/engine/pipeline.rs:8
kind-isolation	kind-isolation:deps	3 finding(s), 76 shipped edge instance(s) over 27 class(es), 76 declaration(s); 61 '[[dep]]' row(s), 0 question(s): unlisted-dep-edge legacy -> plane busbar-llm -> busbar-plane-llm is a shipped edge w
kind-isolation	kind-isolation:test-deps	5 finding(s), 36 test edge instance(s) over 19 class(es), 36 declaration(s); 22 '[[dep]]' row(s), 0 question(s): unlisted-dep-edge cleanliness -> legacy busbar-core-admin -> busbar-a2a is a test edge
kind-isolation-ship	kind-isolation:deps	15 finding(s) over 76 shipped edge(s): ship-edge kernel -> hooks busbar-kernel -> busbar-hooks-ranking is 'not-allowed': the architecture grants no kernel -> hooks edge, and the ship criterion is the
kind-isolation-ship	kind-isolation:test-deps	13 finding(s) over 36 test edge(s): ship-edge cleanliness -> legacy busbar-core-admin -> busbar-a2a is 'not-allowed': the architecture grants no cleanliness -> legacy edge, and the ship criterion is t
kind-isolation-ship	kind-isolation:faces	4 finding(s) over 31 crate(s): foreign-entry crates/busbar busbar is kind 'root' and implements 'Store' 2 time(s) in shipped source — the entry face of kind 'store'. A trait implementation is a claim
kind-isolation-ship	kind-isolation:testkit	1 finding(s) over 12 crate(s): no-implementor crates/hooks-ranking busbar-hooks-ranking is kind 'hooks' and implements 'Hooks' (its 'impl' blocks, or the exported door built over them) nowhere in ship
kind-isolation-ship	kind-isolation:legacy-drain	5 finding(s): transitional-live qa/kind-isolation.toml 'busbar-a2a -> busbar-core-admin' (legacy drain: the retiring A2A engine's tests drive the admin surface that drained into the cleanliness tier)
kind-isolation-ship	kind-isolation:control-path	73 finding(s) over 3 control surface(s): upstream crates/busbar-core-admin/src/admin_codec/meta.rs:84 busbar-core-admin names 'egress' — a control surface has no upstream to reach, so the vocabulary o
ship-ready	ship-ready:ship-twin	'kind-isolation-ship' is not green: kind-isolation:deps (a dependency the architecture does not grant is still in the graph); kind-isolation:test-deps (a dependency the architecture does not grant is
instance-noun-neutrality	instance-noun-neutrality:voice	tracked known-debt census — 8: crates/busbar-plane-llm/src/codec/gemini/handler.rs×7 [cross-plugin] | crates/busbar-plane-llm/src/codec/gemini/tests/handler_tests.rs×2 [cross-plugin] | crates/busbar
structure-lint	structure-lint:plane-dup:unledgered	23 finding(s): PLANE-DUPLICATE (module): 'config.rs' — a2a:crates/busbar-a2a/src/a2a/config.rs mcp:crates/busbar-mcp/src/mcp/config.rs voice:crates/busbar-voice/src/config.rs (the ledger row signs for

Judged against base 70776f1d3: 0 new red, 0 worse, 7 standing (excused).

tests passed: 21942, failed: 0. Run: https://github.com/GetBusbar/busbar/actions/runs/37602371822 . Artifact verdict-5d3cdc33ba596b3a3feedcda923fda8c404b488d (failures.json, junit.xml, raw.log; 90 days).