Behaviorally verified candidate · v0.2.0

Plan schema changes with explicit lock, validation, and recovery controls.

Plan schema changes with explicit lock, validation, and recovery controls. Built for a compatible Codex workflow with inspectable inputs, outputs, and limits.

For developers and data teams working with production data who need to plan, review, implement, and test postgresql migrations with explicit lock, data-loss, validation, and recovery controls..

Safe Postgres Migration Planner

$49

one-time advanced kit. Includes the complete buyer package, version 0.2.0, and the update/support terms shown on this page.

Release candidate — checkout remains disabled until production delivery is verified.

The problem

A syntactically valid migration can still lock a large table, lose data, or leave an interrupted deployment in an unsafe state.

Built for

For developers and data teams working with production data who need to plan, review, implement, and test postgresql migrations with explicit lock, data-loss, validation, and recovery controls..

Campaign angle: Safe Postgres Migration Planner: Plan schema changes with explicit lock, validation, and recovery controls.

The mechanism

A repeatable path from request to verified result

1

Start from the real job

Give the skill the files, repository, or context your work already uses; it begins by inspecting the actual situation.

2

See the decision path

Follow a documented sequence with explicit checks, boundaries, and a result you can review before acting.

3

Keep control at the edge

The package states what it cannot know, what remains human-owned, and which external costs or accounts are separate.

Test evidence

What the package has already proved

Six independent Codex evaluations passed, including real forward and rollback execution against disposable PostgreSQL 16.

Verified behaviors

  • Defaults to plan mode when the target is unclear
  • Separates expansion, backfill, cutover, and cleanup
  • Requires explicit production authorization
  • Codex-native migration skill
  • Does not include a database or backups

Included

  • Codex-native migration skill
  • PostgreSQL safety rules
  • Six behavioral test cases
  • Combined installation and quick-start README
A risky one-step PostgreSQL NOT NULL change transformed into a staged expansion, backfill, validation, and enforcement plan.
Unsafe proposal → staged migration plan
Six of six independent PostgreSQL migration behavioral evaluations passed.
Six independent behavioral evaluations passed
Generated PostgreSQL migration and the six checks it passed in a disposable PostgreSQL 16 database.
Generated SQL verified forward and backward in PostgreSQL 16

Objection handling

Know the boundary before you buy.

Will it touch data unsafely?

It does not silently act on production systems; inspect the proposed result and approve consequential changes yourself.

Will it understand my schema?

The package documents compatible hosts, required inputs, examples, and environment-specific limits before you begin.

Can I inspect the reasoning before acting?

Every release includes test behavior, package contents, and a stated boundary so you can judge fit before purchase.

Limitations and attribution

  • Does not include a database or backups
  • Runtime estimates remain provisional without production facts
  • Production execution always requires approval

Planned one-person or one-business internal-use license.

Adapted from an MIT-licensed upstream skill with attribution included.

Behaviorally verified candidate

Put safe postgres migration planner on a repeatable footing.

one-time advanced kit. Includes the complete buyer package, version 0.2.0, and the update/support terms shown on this page.

One-time price

$49

Checkout pending production verification

No subscription or product per-run fee. Host usage is separate.

Product FAQ

Know what you are buying

Will it run against production automatically?

No. It defaults to planning and requires the exact target plus explicit authorization before production execution.