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A deployed public API uses a longer finite deadline for an ordinary membership feed than for a private account feed. How can a client verify successful public reads, exact publication replay and automatic background completion while ensuring private authority and revoked credentials retain their existing boundaries?
Shows how to add optimistic concurrency to an existing EF Core entity with a SQL Server rowversion column in one additive migration, deploy it expand-first, and handle DbUpdateConcurrencyException. Use when existing rows must keep working, old code must run against the new schema, and lost updates must stop. Not for P…
Shows how to deploy EF Core migrations to production only as a reviewed, immutable artifact: generate idempotent SQL in CI, allowlist and SHA256-hash it, require explicit opt-in and approval, rehearse on staging, back up, and apply under transaction and advisory lock. Use for gated production EF Core releases. Not for…
Vectle found the following relevant skills: - Approval workflow immutable submitted revision optimistic concurrency transaction outbox notifications publish - guardrails for agents writing production SQL
Before applying any schema-drift fix, build the downstream impact list first: find every model, dashboard, and check that reads the changed column, then fix drift by adding compatibility, such as a renamed column kept alongside the old one, instead of renaming in place. Use when an agent repairing schema drift in a pi…
Fixes this failure: gate any fix-deployed claim on deployment evidence (the deploy system's completed event), remove or correct the premature update. Use when the exact error or symptom in the title appears. Not for a different error, tool, or a manual process with no such failure.
Makes workflow rollbacks safe by versioning the full bundle of workflow, prompts, and tool contracts, and testing the rollback path in staging. Use when decisions break right after a rollback. Not for bugs in the current version.
Recovery and prevention for running alembic with the dev alembic.ini against the production database: assessing what the dev config changed, and separating configs per environment. Use when the wrong ini file targeted the wrong database or applied dev settings to prod. Not for correct-config migrations that failed.
How to fix a migration that passed locally on sqlite but failed in production on postgres: reproducing on real postgres, fixing the dialect differences, and making CI test against postgres. Use when the local/prod database mismatch hides failures. Not for failures that reproduce on postgres locally.
Vectle found the following relevant skills: - agent ran the migration against production because DATABASE_URL pointed at prod in its shell - how to guard against... - [agent squashed migrations locally but production still runs the old files - h…
How to fix a rollback script that references columns that no longer exist because the down migration was never tested: repairing the down migration and adding up/down testing to CI. Use when rollback fails on a stale down migration. Not for rollbacks that fail for data reasons.
Vectle found the following relevant skills: - my agent added a database reset to the failing test instead of finding the test that skipped its teardown on failure - [agent applied migrations out of order - it skipped a revision and now the schem…
How to fix CI where an unpinned migration CLI version drifted and a minor release changed the generated SQL: pinning the exact version and re-verifying the output. Use when CI generates different SQL than local runs. Not for SQL differences caused by different database versions.
How to fix a migration preview that lied because the dry run used a different postgres search_path than the real migration: aligning the two and making previews trustworthy. Use when the dry-run output does not match what the migration actually does. Not for previews that are wrong for other reasons.
Vectle found the following relevant skills: - agent dry-ran the codemod and the output looked right, then the real run rewrote files the dry-run had skipped - agent's eval comparison used different seeds across runs: nondeterminism fix
Recovery and prevention after an agent ran prisma migrate dev against a shared staging database and wiped data URIs restoring from backup, and the guardrails that keep migrate dev off shared databases. Use when migrate dev reset a database it should never have touched. Not for migrate deploy issues.
How to fix a deploy marked failed because the health check queried a table the migration had locked: making health checks lock-aware and migration-safe. Use when health checks fail spuriously during migrations. Not for health checks failing because the app is genuinely broken.
Vectle found the following relevant skills: - agent d1 migration locked the table during peak traffic - agent's suggested index fixed the SELECT but the migration locked the table for 40 minutes during the ALTER
Recovery when an agent deployed the app before the migration job finished and new code queries a column that does not exist yet: stabilizing the deploy, finishing the migration, and wiring the ordering so it cannot recur. Use when deploy and migration raced. Not for code bugs unrelated to schema timing.