Rules for editing dbt models under models/datamart/01_core/ so the auto-generated ERD (erd/output.d2 + .svg) stays valid. Use this whenever you add, rename, modify, or touch any model (sql or yml) under models/datamart/01_core/, or when the user mentions ERD, relationships, group tags, generate_erd.py, or a failing generate-erd / dbt-docs-generate pre-commit hook. The script hard-fails the commit if a 01_core model is missing a group tag or has more than one — so assume this skill applies by default for any 01_core edit, even if the user doesn't mention the ERD.
How to install dimensional-erd?
astrafy/astrafy-agent-tools/dimensional-erd
$npx -y skills add astrafy/astrafy-agent-tools --skill dimensional-erdInstalls into the current project.
›Prefer a prompt? Paste this to your agent
Run `npx skills use "https://github.com/astrafy/astrafy-agent-tools" --skill "astrafy/astrafy-agent-tools/dimensional-erd"` and follow the generated skill instructions now. Read its complete output, redirecting it to a temporary file first if necessary. Resolve relative paths from the supporting-files directory it provides.
Use the skills in "https://github.com/astrafy/astrafy-agent-tools" that are relevant to the current task. Run `npx skills add "https://github.com/astrafy/astrafy-agent-tools"` and select the relevant skills, then follow their instructions.
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