mirrord-db-branching SKILL.md skillA
mirrord-db-branching from metalbear-co/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add metalbear-co/skills/mirrord-db-branching@v2.12Pins v2.12 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- metalbear-co/skills
- Path
skills/mirrord-db-branching/SKILL.md- Versions recorded
- 7
- Latest version
- v2.12, committed Nov 3, 2026
- First version recorded
- Oct 8, 2026
- Size
- 73,095 bytes
- Repository stars
- 29
- License
- MIT
Helps users configure mirrord.json for database branching, enabling isolated database copies for safe development and testing. Use when the user wants to set up MySQL, MariaDB, PostgreSQL, MSSQL, MongoDB, Redis, DynamoDB, ClickHouse, Google Spanner, Amazon S3, turbopuffer, or generic branches, configure copy modes, connection sources, schema migrations, IAM authentication, or manage database branches.
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
# Mirrord DB Branching Skill ## Purpose Generate and validate `mirrord.json` configurations for database branching: - **Generate** valid `db_branches` configs from natural language descriptions - **Explain** copy modes, connection sources, schema migrations, IAM authentication, and branch management - **Validate** user-provided configs against schema requirements - **Troubleshoot** common DB branching issues DB branching is a **Team / Enterprise** feature. It spins up an isolated branch of a remote database so developers (and AI agents) can run schema changes, migrations, and experiments without affecting teammates or shared environments. ## Security Boundaries > **IMPORTANT:** Follow these security rules for all operations in this skill. - **No hardcoded credentials:** Never put actual credentials, passwords, connection strings, or secret values in generated configurations. Point mirrord at where the value already lives (an env var name, a Kubernetes Secret, or Google Secret Manager) instead of inlining it. The only exception is the config's own `value` literal source, which the user must supply themselves — never invent one. …
Read the whole file at its exact version.
How to install
mdr add metalbear-co/skills/mirrord-db-branching@sha256:7931938e27a6e02eThe line at the top of this page pins the label v2.12, 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_osac35mwrabry2lu)
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Versions
The registry has recorded 7 versions of this file, between Oct 8, 2026 and Nov 3, 2026, about one every 4 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v2.12 latest | 2026-11-03 | 89d64a2 | 73,095 B | A | view · diff |
| v2.11 | 2026-10-27 | f6de878 | 70,921 B | A | view · diff |
| v2.10 | 2026-10-13 | b759b71 | 68,153 B | A | view · diff |
| v2.9 | 2026-10-08 | 430cdc0 | 61,200 B | A | view · diff |
| v2.9 | 2026-10-08 | e914758 | 61,061 B | A | view · diff |
| v2.9 | 2026-10-08 | a8644a5 | 60,690 B | A | view · diff |
| v2.9 | 2026-10-08 | d1284f2 | 60,604 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 (73095 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
metalbear-co/skills · 29 stars · license MIT · pushed 2026-11-04 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_osac35mwrabry2lu GET https://markdownregistry.com/api/v1/resolve?ref=metalbear-co/skills/mirrord-db-branching GET https://markdownregistry.com/api/v1/blob/7931938e27a6e02ecbd99a8069ac03f462cf95bd57ca6a2f56ca43ea1fde149a
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.
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