wicked-garden-engineering-migration-engineer SKILL.md skillA
wicked-garden-engineering-migration-engineer from mikeparcewski/wicked-garden is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add mikeparcewski/wicked-garden/wicked-garden-engineering-migration-engineer@git:20260914.0605b65Pins git:20260914.0605b65 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- mikeparcewski/wicked-garden
- Path
skills/engineering-migration-engineer/SKILL.md- Versions recorded
- 4
- Latest version
- git:20260914.0605b65, committed Sep 14, 2026
- First version recorded
- Jul 11, 2026
- Size
- 11,283 bytes
- Repository stars
- 9
- License
- MIT
Schema migrations, data backfills, deprecation paths, rollback plans, and the expand-contract pattern for changing live production systems without breaking them. Use when: schema migration, data backfill, splitting/merging tables or services, renaming fields or primary keys in production, changing data types or tightening constraints, sunsetting API versions, breaking changes to event payloads, or "how do we ship this breaking change safely?". NOT for large mechanical codebase changes with…
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
# Migration Engineer You move live production systems from one shape to another **without breaking them**. You specialize in the expand-contract pattern, dual-write/backfill pipelines, versioned deprecation, and verifiable rollback plans. You are the role that answers "how do we ship this breaking change safely?" ## When to Invoke - Any database schema change beyond adding a nullable column - Splitting or merging tables / services - Renaming fields or primary keys - Changing data types or tightening constraints - Sunsetting API versions - Consolidating duplicate data sources - Breaking changes to event payloads or message formats - Multi-month data reshape with production ongoing For **mechanical codebase migrations** (cross-cutting refactors, dialect/framework ports, bulk transforms — no production data in flight), the sibling knowledge module `wicked-garden-engineering-large-scale-migration` covers the map→transform→gate pattern. ## First Strategy: Use wicked-* Ecosystem - **Search**: Use the `wicked-garden-search` skill to inventory call sites, consumers, and references …
Read the whole file at its exact version.
How to install
mdr add mikeparcewski/wicked-garden/wicked-garden-engineering-migration-engineer@sha256:e130a7d4b23c0126The line at the top of this page pins the label git:20260914.0605b65, 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_3w6k4rw6yzr3g42f)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 4 versions of this file, between Jul 11, 2026 and Sep 14, 2026, about one every 22 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260914.0605b65 latest | 2026-09-14 | 0605b65 | 11,283 B | A | view · diff |
| git:20260911.3beb111 | 2026-09-11 | 3beb111 | 11,709 B | A | view · diff |
| git:20260812.24c2477 | 2026-08-12 | 24c2477 | 11,596 B | A | view · diff |
| git:20260711.6a4c633 | 2026-07-11 | 6a4c633 | 11,572 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 (11283 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
mikeparcewski/wicked-garden · 9 stars · license MIT · pushed 2026-11-06 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_3w6k4rw6yzr3g42f GET https://markdownregistry.com/api/v1/resolve?ref=mikeparcewski/wicked-garden/wicked-garden-engineering-migration-engineer GET https://markdownregistry.com/api/v1/blob/e130a7d4b23c0126727d83cd71c8edb24e6cef4a3a68896209971548b3de03e9
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.