Phase 195audit event writer stub design onlyFAEDA-EVIDENCE-AUDIT-RUNTIME-BUILD-APPROVAL-GATE-DESIGN-001

Evidence Audit Event Writer Stub Design

Defines append-only audit event shape, event categories, request ids, actor scope, before/after summaries, failure events, and no production log writes.

Runtime approval Previous gate Next gate Control room

Runtime remains blocked

Can every future evidence action produce audit truth without leaking evidence content?

Runtime remains blocked. No live runtime is created here. This gate is allowed to clarify readiness, controls, blockers, and exit criteria. It is not allowed to create production runtime, mutate evidence, notify users, export data, delete records, or grant external access.

Gate

195

Audit Writer

Approval focus

4

must be checked

Readiness checks

6

before next gate

Live writes

0

runtime still blocked

Approval focus

What this gate must prove

1

Audit events must record actor, action, scope, request id, evidenceRef, and safe summary.

2

Audit events must avoid raw evidence, full payloads, provider URLs, signed URLs, and private notes.

3

Append-only behavior must be defined before any writer is built.

4

Failure events must be logged safely without stack traces or secrets.

Readiness checks

Checklist before next phase

1

event catalog exists

Must be proven before this gate can move forward.

2

request id is mandatory

Must be proven before this gate can move forward.

3

safe summary rules exist

Must be proven before this gate can move forward.

4

before/after policy defined

Must be proven before this gate can move forward.

5

append-only rule documented

Must be proven before this gate can move forward.

6

failure events are safe

Must be proven before this gate can move forward.

Blocked runtime

Blocked runtime actions remain locked

production evidence upload
real object storage write
live metadata mutation
queue worker mutation
notification dispatch
report export/download
external auditor grant
deletion/archive/purge
payment or settlement action
legal hold release

Exit criteria

How this gate becomes ready

1

Audit event shape is approved.

Must be proven before this gate can move forward.

2

Security approves no secret leakage.

Must be proven before this gate can move forward.

3

QA can test event coverage later.

Must be proven before this gate can move forward.

4

Next phase can design permission test matrix.

Must be proven before this gate can move forward.

Audit fields

Future gate packet fields

phaseGateId

string

Stable id for the future approval or stub gate.

sourceGate

string

Previous gate or upstream evidence governance design.

mode

enum

design, local_stub, sandbox, test_matrix, qa_gate, pilot, release_control.

featureFlagKey

string|null

Disabled-by-default feature flag for future runtime.

killSwitchKey

string|null

Emergency stop control for future runtime.

makerRole

enum

Role preparing the gate packet.

checkerRole

enum

Independent reviewer role.

riskSummary

string

Founder-safe risk summary.

status

enum

draft, blocked, rework, approved_for_next_gate, rejected.

createdAt

datetime

Future packet creation timestamp.

updatedAt

datetime

Future packet update timestamp.

Hard rules

Safety sprint does not equal live runtime

1

This phase is design, readiness, stub, sandbox, QA, pilot, or release-control planning only.

2

Do not create production evidence databases, migrations, API routes, object storage writes, queue workers, schedulers, notifications, exports, downloads, deletion, archive, purge, public links, or external auditor access here.

3

Any stub must be disabled by default, demo-data only, feature-flagged, kill-switchable, audited, and unable to mutate live evidence.

4

Backend permission checks remain final. UI visibility is never security.

5

No provider credentials, signed URLs, raw file paths, CNIC, OTP, PIN, bank details, private notes, payment references, or raw transcripts may appear in the UI packet.

6

Every runtime move must preserve maker-checker separation, idempotency, audit events, rollback, redaction, retention, and founder visibility.

Gate packet

JSON preview

Gate packet is a preview only and cannot create runtime evidence.

{
  "phaseGateId": "evidence_runtime_safety_195",
  "phase": "Phase 195",
  "title": "Evidence Audit Event Writer Stub Design",
  "route": "/business-pro/evidence-audit-event-writer-stub-design",
  "sourceRuntimeBuildApprovalDesignId": "evidence_audit_runtime_build_approval_gate_design_187",
  "sourceGate": "FAEDA-EVIDENCE-AUDIT-RUNTIME-BUILD-APPROVAL-GATE-DESIGN-001",
  "mode": "audit event writer stub design only",
  "designOnly": true,
  "createsProductionDatabase": false,
  "createsMigration": false,
  "createsProductionApi": false,
  "createsObjectStorageWrite": false,
  "createsQueueWorker": false,
  "createsScheduler": false,
  "createsNotification": false,
  "createsExport": false,
  "createsDownload": false,
  "grantsExternalAccess": false,
  "allowsDeletionArchiveOrPurge": false,
  "approvalFocus": [
    "Audit events must record actor, action, scope, request id, evidenceRef, and safe summary.",
    "Audit events must avoid raw evidence, full payloads, provider URLs, signed URLs, and private notes.",
    "Append-only behavior must be defined before any writer is built.",
    "Failure events must be logged safely without stack traces or secrets."
  ],
  "readinessChecks": [
    "event catalog exists",
    "request id is mandatory",
    "safe summary rules exist",
    "before/after policy defined",
    "append-only rule documented",
    "failure events are safe"
  ],
  "blockedRuntime": [
    "production evidence upload",
    "real object storage write",
    "live metadata mutation",
    "queue worker mutation",
    "notification dispatch",
    "report export/download",
    "external auditor grant",
    "deletion/archive/purge",
    "payment or settlement action",
    "legal hold release"
  ],
  "auditFields": [
    "phaseGateId",
    "sourceGate",
    "mode",
    "featureFlagKey",
    "killSwitchKey",
    "makerRole",
    "checkerRole",
    "riskSummary",
    "status",
    "createdAt",
    "updatedAt"
  ],
  "exitCriteria": [
    "Audit event shape is approved.",
    "Security approves no secret leakage.",
    "QA can test event coverage later.",
    "Next phase can design permission test matrix."
  ],
  "hardRules": 6,
  "nextGate": "Phase 196 should be evidence permission enforcement test matrix"
}

Next safe gate

Phase 196 should be evidence permission enforcement test matrix

The next move stays within the controlled runtime safety sprint unless Phase 200 returns FAEDA to the main core app completion track.

Open next gate