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Metadata Envelope

Category: Dev Tools  ·  Sub-category: tools-misc  ·  Last updated:
Use when authoring or debugging any Kodexa resource YAML — the shared slug / name / orgSlug / type envelope twelve org-scoped resource types embed, the flatten rule that makes authored YAML flat, what a slug is actually checked against, the changeSequence optimistic lock, the computed ref and uri, extends + overlay (a plan, task template, data form or project template written as a delta over a base), and where each file lives in a metadata repo.
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From the source SKILL.md

Twelve org-scoped resource types share one envelope: the same identity keys, the same lifecycle columns, the same serialization rules. Sibling skills describe a type's own fields; this one covers the frame they sit in, and the four parts of it that silently break authored YAML — the flatten rule, the slug rules, type, and changeSequence.

What this skill does

Metadata Envelope is a community-contributed Claude Code skill in the tools-misc sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/metadata-envelope/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when authoring or debugging any Kodexa resource YAML — the shared slug / name / orgSlug / type envelope twelve org-scoped resource types embed, the flatten rule that makes authored YAML flat, what a slug is actually checked against, the changeSequence optimistic lock, the computed ref and uri, extends + overlay (a plan, task template, data form or project template written as a delta over a base), and where each file lives in a metadata repo.

Who uses this skill

The Metadata Envelope Claude Code skill is built for developers, power users, and teams automating repetitive workflows and improving developer experience. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 211,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/metadata-envelope
curl -L https://claudskills.com/skills/metadata-envelope/SKILL.md \
  -o ~/.claude/skills/metadata-envelope/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/metadata-envelope/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/metadata-envelope/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\metadata-envelope\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Telegram

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

Frequently asked questions

How do I install the Metadata Envelope Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/metadata-envelope/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.
What does the Metadata Envelope skill do?
Use when authoring or debugging any Kodexa resource YAML — the shared slug / name / orgSlug / type envelope twelve org-scoped resource types embed, the flatten rule that makes authored YAML flat, what a slug is actually checked against, the changeSequence optimistic lock, the computed ref and uri, extends + overlay (a plan, task template, data form or project template written as a delta over a base), and where each file lives in a metadata repo.
Is this skill free to install?
Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.
When should I use the Metadata Envelope skill?
Use Metadata Envelope when your Claude Code task falls under the Dev Tools category — specifically in the tools misc area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Metadata Envelope" or describe the task and let Claude pick). Browse related skills at /category/tools/.
What is a Claude Code skill and how does the Metadata Envelope skill fit in?
A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Metadata Envelope is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Dev Tools category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA
kodexa-ai. (2026). Metadata Envelope [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/metadata-envelope/
BibTeX
@misc{metadata-envelope-2026,
  author    = {kodexa-ai},
  title     = {Metadata Envelope [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/metadata-envelope/}
}

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