dataproduct-builder-skills (Python)

Agent skills for designing and building Vulcan/DataOS data products — the Python port of the dataproduct-builder-skills npm scaffolder. Run it via uvx/pipx instead of npx.

Scaffolds agent skills for Cursor, Claude Code, Codex, or VS Code (Copilot) — plus the full Vulcan reference docs — into any project.

Usage

Installs the skills and the Vulcan reference docs your project needs:

# Installs examples for all engines by default
uvx dataproduct-builder-skills

# Or pass an engine to install examples for just that one
uvx dataproduct-builder-skills snowflake
uvx dataproduct-builder-skills postgres
uvx dataproduct-builder-skills databricks

Or with pipx:

pipx run dataproduct-builder-skills snowflake

This launches an interactive prompt for which IDE(s) to install into:

dataproduct-builder-skills — scaffolding skills + docs

Which IDE(s) are you using? (comma-separated for multiple, e.g. 1,2)

  1  Cursor
  2  Claude Code
  3  Codex
  4  VS Code (Copilot)
  5  All

Enter number(s) (1–5):

Engine selection is not interactive — it's all by default, or whichever engine you passed as a CLI argument.

What gets installed

.cursor/skills/              ← Cursor (created if you chose Cursor or All)
  design-data-product/
    SKILL.md
  build-data-product/
    SKILL.md
.claude/skills/               ← Claude Code (created if you chose Claude Code or All)
  design-data-product/
    SKILL.md
  build-data-product/
    SKILL.md
.codex/skills/               ← Codex (created if you chose Codex or All)
  design-data-product/
    SKILL.md
  build-data-product/
    SKILL.md
.github/skills/               ← VS Code / GitHub Copilot (created if you chose VS Code or All)
  design-data-product/
    SKILL.md
  build-data-product/
    SKILL.md
dpbs-docs/
  dataos-philosophy/  ← DataOS core concepts
  vulcan-docs/        ← Vulcan CLI & framework reference
  vulcan-examples/
    <engine>/         ← real working data product examples for your chosen engine
  vulcan-*.whl        ← Vulcan CLI wheel — install with: pip install dpbs-docs/vulcan-*.whl

What the skills do

design-data-product

Guides you from a vague idea to a validated data-product-plan.md spec through:

• Structured question batches (business context, data sources, grain, measures, metrics)
• Entity inference and table discovery via the Data Product MCP
• Model-kind classification, join recommendations
• Quality rules, AI context, and semantic behavior drafting

Trigger: ask the agent to "design a data product", "start a Vulcan design session", or "help me with data-product-plan.md".

Requires: Data Product MCP (dataproduct-mcp/api/v1) connected in Cursor Settings → MCP.

build-data-product

Turns the validated design spec into a working, deployed Vulcan data product — scaffolding models, generating SQL/YAML, running vulcan plan/evaluate, enriching metadata, applying quality checks, and deploying to dev and prod.

Trigger: ask the agent to "build the data product", "scaffold the Vulcan project", or "run vulcan plan".

Requirements

• Python ≥ 3.9
• Data Product MCP connected in Cursor (for the design skill)
• Vulcan CLI (pip install vulcan-data-tool) for the build skill

Re-running

Running uvx dataproduct-builder-skills again safely updates existing files with the latest skill and docs content.

Vendoring shared content (maintainers)

Before building/testing, vendor the shared skills/ and dpbs-docs/ content from the repo root into the package's data/ directory (mirrors what bin/create.js/npm pack ships for the npm package):

python3 scripts/vendor_data.py

Building the package (maintainers)

python3 scripts/vendor_data.py
uv build   # or: python3 -m build

This produces an sdist and wheel in python/dist/.

Testing locally without publishing (maintainers)

uv build
uvx --from dist/dataproduct_builder_skills-<version>-py3-none-any.whl dataproduct-builder-skills snowflake
# or
pipx run --spec dist/dataproduct_builder_skills-<version>-py3-none-any.whl dataproduct-builder-skills snowflake

Inspect .claude/skills/, .cursor/skills/, and dpbs-docs/ in a scratch project to verify the output.

Publishing a new version (maintainers)

Follow these steps every time you want to ship an update to PyPI.

1. Make your changes

Edit skill files, docs, or the CLI as needed.

2. Bump the version

Update version in python/pyproject.toml to match the npm package's version in package.json (patch/minor/major, same semver rules as npm).

3. Vendor and build

python3 scripts/vendor_data.py
uv build

4. Publish to PyPI

uv publish   # or: python3 -m twine upload dist/*

First time only: configure your PyPI credentials (uv publish --token <token>, or ~/.pypirc for twine).

One-liner (steps 3–4 combined)

python3 scripts/vendor_data.py && uv build && uv publish

5. Verify

# confirm the new version is live on PyPI
pip index versions dataproduct-builder-skills

# test the published package end-to-end
uvx dataproduct-builder-skills@latest

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License

MIT