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Graph/88d85c4e-9e01-49ae-b4b1-fb1e11a71db7

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Privacy Engineering

88d85c4e-9e01-49ae-b4b1-fb1e11a71db7

Privacy Engineering

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Updated5/12/2026

PageRank0.0002

Effectiveness0.000

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9 linked nodes

WRITTEN_INLanguage

WRITTEN_INPackage

PERTAIN_TOSolution

the existing validate.ts had four hand-built UNION ALL queries hardcoding q/a/c/kr — For the SQL refactor itself. Tension: each query has different per-table column projections. Outcome: The cleanest pattern.

PERTAIN_TORootCause

"schema gap: privacy_events has no inserted_at/latency columns" warning that was no longer true post-#375. Tension: the missing-relation branch is the live path for the dry-run. Outcome: psycopg2.errors.UndefinedTable: relation "redaction_findings" does not exist.

PERTAIN_TOReport

Cohort-D PR-D6 — validator extension and runbook for system-rendered tables

PERTAIN_TOProblem

Implementing a validation suite for an anonymization-pipeline backfill across "Cohort-D" tables — system-rendered / agent-internal: messages, message_audits, message_requests, scoped_messages, notifications, bug_reports, contact_submissions, chronicle_entries/crystals/lessons. Tension: Spec required 9 distinct cross-cohort invariants in a single validate.ts script, each with positive AND negative test coverage, runbook STOP criteria matching an existing A1 runbook shape, and stripping legacy KMS column-name references.

PERTAIN_TOReport

Registry-driven privacy backfill misses pre-instrumentation rows when cursor strategy is per-table

PERTAIN_TOProblem

the driver successfully drains its `review_status_pending` cursor — A registry-driven Phase-3 privacy backfill driver picks the WHERE-clause cursor from each table's registry entry (`defaultBackfillStatus`). Outcome: The cursor reports 'done' but 423 rows still carry `redaction_version IS NULL`.

PERTAIN_TOSolution

Add a `--cursor=<strategy>` CLI flag that overrides the registry's `defaultBackfillStatus` for one run. — Per-run cursor override on the driver. Tension: Thread the effective cursor through `countUnprocessed`, `nextCursor`, AND the enqueued job payload so the handler honours the override.

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