database-migration-verification SKILL.md skillA
database-migration-verification from nahid-sparktales/agent-dispatcher is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add nahid-sparktales/agent-dispatcher/database-migration-verification@git:20260919.a0d4f55Pins git:20260919.a0d4f55 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- nahid-sparktales/agent-dispatcher
- Path
skills/database/database-migration-verification/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260919.a0d4f55, committed Sep 19, 2026
- Size
- 7,323 bytes
- Repository stars
- 58
- License
- MIT
Prove a migration did what it claimed — before/after row counts, column checksums, constraint and index state, invariant queries, an exercised application read path, and a rehearsed rollback. Use after a migration has been applied to any environment and before anyone reports it as working, or when reviewing someone else's claim that a migration succeeded. Not for planning or sequencing the migration (that is migrations), and it does not treat a clean exit code, a green CI run, or a backup's…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Database migration verification "The migration ran" is a fact about a process exiting. It is not a fact about the data. A migration can apply cleanly and still drop rows, leave a column half-backfilled, declare a constraint it never validated, or build an index nothing uses. ## When this fires A migration has been applied somewhere — local, branch, staging, production — and someone is about to call it done, or you are checking that claim. It fires again after any re-run or fix. It does not fire for a migration that has only been written. ## Procedure 1. **Write down the claim as checkable statements** before running anything. "Every order has a currency." "No order row was lost." "`total` equals the sum of its line items." A claim that cannot be expressed as a query cannot be verified here — mark it unverifiable rather than quietly dropping it. 2. **Get the before-state, or declare it missing.** Row counts, aggregate checksums and constraint state captured before the migration ran. If nobody captured them, you can still check the after-state against the schema and the invariants — but you cannot prove nothing was lost. Say …
Read the whole file at its exact version.
How to install
mdr add nahid-sparktales/agent-dispatcher/database-migration-verification@sha256:4f53867b79155b88The line at the top of this page pins the label git:20260919.a0d4f55, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_lydvnsgaebtgfuul)
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Versions
The registry has recorded 1 version of this file, committed on Sep 19, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (7323 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
nahid-sparktales/agent-dispatcher · 58 stars · license MIT · pushed 2026-10-24 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_lydvnsgaebtgfuul GET https://markdownregistry.com/api/v1/resolve?ref=nahid-sparktales/agent-dispatcher/database-migration-verification GET https://markdownregistry.com/api/v1/blob/4f53867b79155b88e11124bad76349661dd1b6d8a5a39a5f4eeff98fd86c72e4
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.