migration-helper SKILL.md skillA
migration-helper from nguyenthienthanh/aura-frog is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add nguyenthienthanh/aura-frog/migration-helper@git:20260515.6be9f59Pins git:20260515.6be9f59 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- nguyenthienthanh/aura-frog
- Path
aura-frog/skills/migration-helper/SKILL.md- Versions recorded
- 5
- Latest version
- git:20260515.6be9f59, committed May 15, 2026
- First version recorded
- Mar 25, 2026
- Size
- 2,706 bytes
- Repository stars
- 25
- License
- MIT
Guide safe database and code migrations with zero-downtime strategies.
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
> **AI-consumed reference.** Optimized for Claude to read during execution. > Human-readable explanation: see [docs/architecture/HIERARCHICAL_PLANNING.md](../../../docs/architecture/HIERARCHICAL_PLANNING.md) > or [docs/getting-started/](../../../docs/getting-started/) depending on topic. # Skill: Migration Helper Safe database and code migrations with zero-downtime strategies. --- ## Safety Rules 1. Always backup before migration 2. Test on staging first 3. Make migrations reversible 4. Deploy in small batches 5. Monitor during migration --- ## Related Rules - `rules/core/simplicity-over-complexity.md` — smallest migration that closes the gap; no "while we're here" schema expansions - `rules/core/verification.md` — verify each migration step before advancing - `rules/workflow/immutable-workflow.md` — migrations are append-only records - `rules/workflow/dual-llm-review.md` — destructive migrations (DROP COLUMN/TABLE) trigger dual-LLM review --- ## Schema Changes | Change | Safe Approach | |--------|---------------| | Add column | Add nullable → backfill → NOT NULL | | Remove column | Stop using → deploy → drop | | Rename column | Add new → copy → deploy → drop old | …
Read the whole file at its exact version.
How to install
mdr add nguyenthienthanh/aura-frog/migration-helper@sha256:2183ad11a7e1fed1The line at the top of this page pins the label git:20260515.6be9f59, 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_onimsdzcjgcq4p3o)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Mar 25, 2026 and May 15, 2026, about one every 13 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260515.6be9f59 latest | 2026-05-15 | 6be9f59 | 2,706 B | A | view · diff |
| git:20260428.3e00277 | 2026-04-28 | 3e00277 | 2,415 B | A | view · diff |
| git:20260428.bdee323 | 2026-04-28 | bdee323 | 2,393 B | A | view · diff |
| git:20260410.d55a9ea | 2026-04-10 | d55a9ea | 1,972 B | A | view · diff |
| git:20260325.da398da | 2026-03-25 | da398da | 4,378 B | A | view |
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 (2706 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
nguyenthienthanh/aura-frog · 25 stars · license MIT · pushed 2026-10-01 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_onimsdzcjgcq4p3o GET https://markdownregistry.com/api/v1/resolve?ref=nguyenthienthanh/aura-frog/migration-helper GET https://markdownregistry.com/api/v1/blob/2183ad11a7e1fed14ba606bb36209344bf6702fa943b5000e3fe68cc9e514510
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.