flex-auth/workplans/FLEX-WP-0031-decision-record-emission.md

id	type	title	domain	repo	status	flavor	owner	topic_slug	planning_priority	planning_order	related_workplans	created	updated	state_hub_workstream_id
FLEX-WP-0031	workplan	The decision record has a declared emission guarantee and nothing that delivers it	infotech	flex-auth	active	implementation	claude	netkingdom	P1	310	FLEX-WP-0030 FLEX-WP-0019	2026-09-21	2026-09-23	84f5d9fe-b4c9-584a-b964-efe3e48af095

FLEX-WP-0031 — Deliver the decision-record emission guarantee

GH-DEC-2026-018 ruled that flex-auth is the §4 source of evidence for the decision record, and that it is not conforming on §11 until it declares and delivers a per-event-class emission guarantee. The declaration is published (cadence.yaml, FLEX-WP-0030-T07). Nothing emits: the decision record reaches consumers only in the /v1/check response, no sender named flex-auth or access-engine is registered with audit-core, and there is no outbox, heartbeat or reconciliation count. This plan closes declared gap G2 (docs/conformance/security-layer-conformance.md, review 2026-10-19).

Bound, stated up front so no argument rests on more: heartbeat and reconciliation detect loss, outage, drain failure and accident. Neither detects a compromised flex-auth suppressing a record and its own count together.

1. Decide emission atomicity

id: FLEX-WP-0031-T01
status: done
priority: high
state_hub_task_id: "2dbc225f-d762-537b-9a24-ab2b17fc2fa2"

GH-DEC-2026-018 left open whether decision-record emission must be atomic with the decision (§9.4), pending the class inventory. It exists now. Decide whether a rare load-bearing decision (deny) may be returned before its record is committed to the outbox, and record the answer as a FLEX-DEC. Gate: decided, with the latency cost stated.

Done 2026-09-23: FLEX-DEC-2026-018. Every decision is released only after its record commits to the local outbox. When the commit fails, restrictive effects (deny, redact, not_applicable) are still released and counted as released_uncommitted, while allow and audit_only are withheld (503). Withholding a deny would turn it into an error that an open-stance consumer treats as proceed. The measured cost is about 1.1 ms per durable append on railiance01. The ruling puts two requirements on T03: the outbox needs a PVC, and the node disk is at 84 %.

2. Register flex-auth as an audit-core sender

id: FLEX-WP-0031-T02
status: wait
priority: high
state_hub_task_id: "89661908-ca9a-5e4a-a0a5-62d1a9e02568"

Open an intake with audit-core (worked examples AUDIT-IN-0002, AUDIT-IN-0003): sender registration, evidence_kind, heartbeat_classes per class exactly as cadence.yaml publishes them, and a token lane routed via warden route find. audit-core has said it accepts the classification as supplied and will not infer it. Gate: sender registered; no secret in any file.

Requested 2026-09-23 (hub message 6044ed35). The request asks for six senders, one per pin (flex-auth.<pin>), because each pin can only reconcile its own count. It also asks for tenants: ["*"] with a justification, may_read: true for GET /v1/reconciliation, and per-class heartbeat_classes at 86400 s for the four rare classes. It asks audit-core to rule on whether FLEX-DEC-2026-018's failure-path exception counts as a completeness_trade, which senders.py forbids for a load-bearing source. warden route has no catalog lane for audit-core sender tokens, and audit-core was asked to name one. Waiting on audit-core.

3. Durable outbox and the release rule

id: FLEX-WP-0031-T03
status: done
priority: high
state_hub_task_id: "a59603d5-8954-5b05-b1a0-b143c82e439b"

Split on 2026-09-23 under the per-task budget. T05 and T06 carry the rest of the original scope, and the original gate is divided between the three.

Done 2026-09-23:

• internal/emission: a durable outbox with one fsync per commit. A batch commits once. Each event carries exactly the eight fields audit-core's normalize() requires.
• Event ids are random and the decision id travels as correlation_id. Decision ids are content digests, so two identical checks share one, and idempotency would merge them.
• A torn tail is cut on open, and a failed commit is cut back to the last committed size. Committed counts per class are rebuilt on restart.
• The engine applies FLEX-DEC-2026-018 in Check, BatchCheck and ListAllowed. A withheld decision answers 503.
• serve --outbox-dir --emission-source enables it, and GET /v1/emission reports committed and released_uncommitted counts per class.
• api.DecisionEffects() lists the effect vocabulary. A source-parsing test fails on any constant it misses, and a second test fails unless the load-bearing classes in cadence.yaml equal that vocabulary.
• make test (race) passes, and a local serve smoke test committed and counted one deny and one allow. Nothing is deployed and no chart changed.

5. Heartbeat and drain to audit-core

id: FLEX-WP-0031-T05
status: todo
priority: high
state_hub_task_id: "14bd6648-11da-53d7-a512-027005bd4772"

• Emit a daily audit-core.heartbeat event per rare class, with data.class set to the class, following audit-core's stream_findings shape.
• Correct cadence.yaml, which still names a single flex-auth.decision.heartbeat class.
• Drain committed events to POST /v1/events with Idempotency-Key set to the event id, keep a drain cursor, and expose outbox depth and age against the lag_bound.
• The drain stays disabled until T02 admits the senders.

6. Reconciliation, profile check, and storage

id: FLEX-WP-0031-T06
status: todo
priority: high
state_hub_task_id: "bf92a951-3b69-59dd-8907-f6748c91a264"

• Compare committed counts per class and window with audit-core's GET /v1/reconciliation. Divergence is a finding, and undrained events count as lag, not divergence.
• Validate cadence.yaml with the net-kingdom emission-cadence profile checker, supplying the inventory as --rare-load-bearing/--load-bearing.
• Add an optional PVC to the chart for the outbox, sized against the node disk (84 % on 2026-09-23). Rolling it out to any pin is a production change and needs the founder's go-ahead.

4. Close G2

id: FLEX-WP-0031-T04
status: todo
priority: medium
state_hub_task_id: "423b3090-1b72-58fd-9353-5c907c7683bb"

Change cadence.yaml state to emitting, move G2 out of the gap table with the evidence, and tell gate-house, audit-core and kings-guard. Gate: a silence finding is observed on a deliberately withheld heartbeat in a non-production run.