Agent skills updates

[gowthamrajj]

Changes

Agent skills

• New dj-govern-model skill. Runs a read-only governance audit across a model, folder, dependency tree, or the whole workspace — ownership, PII / classification / compliance tagging, registered-group conformance, and prod-write posture — and points you to the skill that fixes each gap. Try "Which models in the finance group have no owner?"
• New dj-create-source skill. Registers a raw Trino table as a DJ source by reading its exact column types from the warehouse, so a model that reads a not-yet-defined catalog.schema.table builds instead of failing. Authoring skills detect the missing source and offer to create it, or run the DJ: Create Source command yourself.
• New dj-run-dbt, dj-run-trino, and dj-git-workflow skills. Compile and test models, run read-only Trino queries, and commit your .model.json sources together with their generated SQL/YAML — activating the right Python environment and keeping warehouse writes behind explicit confirmation.
• Skills confirm the target and stay read-only by default. Creating or converting a model asks which dbt project to use, requires the group to be registered in models/groups.yml, and offers optional owner / pii / classification / compliance tags (skip them and nothing is written). Anything that writes to the warehouse or production always needs your explicit confirmation.
• Model creation builds missing upstreams and defaults BI work to marts. A dashboard or metrics request scaffolds a mart and offers to build any missing staging / intermediate / source layers upstream-first, then reminds you to re-sync so the new columns resolve.
• Leaner agent context. The generated .agents/dj/AGENTS.md is now a slim hub, with deep reference material split into on-demand files under .agents/dj/reference/ that skills open only when needed.

Documentation

• New Agent Skills guide — catalogs every DJ agent skill and when to reach for it.

[arunxdev]

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