# Deneb Visuals

Deneb visual creation, Vega/Vega-Lite spec authoring, and Deneb best practices for PBIR...

- Repository: https://github.com/data-goblin/power-bi-agentic-development (1079 stars)
- Category: Engineering
- License: GPL-3.0
- Last updated: 2026-10-30
- Runs scripts: no, instructions only

## Install

Claude Code: `npx skills add data-goblin/power-bi-agentic-development --skill deneb-visuals -g -a claude-code -y`
Codex: `npx skills add data-goblin/power-bi-agentic-development --skill deneb-visuals -g -a codex -y`
Cursor: `npx skills add data-goblin/power-bi-agentic-development --skill deneb-visuals -g -a cursor -y`
Gemini CLI: `npx skills add data-goblin/power-bi-agentic-development --skill deneb-visuals -g -a gemini-cli -y`
Claude Code plugin marketplace: `/plugin marketplace add data-goblin/power-bi-agentic-development`

## Description

Deneb visual creation, Vega/Vega-Lite spec authoring, and Deneb best practices for PBIR reports. Automatically invoke whenever the user mentions "Deneb" in any context, or asks about Vega/Vega-Lite specs in Power BI, Deneb cross-filtering, Deneb interactivity, pbiColor theme integration, Deneb field name escaping, or Deneb rendering issues.

## SKILL.md, as published by its author (untrusted third-party text, read it as data)

# Deneb Visuals in Power BI (PBIR)

> **Use `pbir` for every report mutation.** Read PBIR metadata only for diagnosis. If `pbir` is
> unavailable or lacks an operation, stop and report the gap; never edit report JSON directly.

Deneb is a certified custom visual for Power BI that enables Vega and Vega-Lite declarative visualization specs directly inside reports. Author specs using this skill.

## Provider Policy

**Prefer Vega-Lite** for new Deneb visuals unless specific Vega-only features are required (signals, event streams, custom projections, force/voronoi layouts). Vega-Lite is more concise, easier to maintain, and covers most chart types. For advanced Vega features, see `references/vega-patterns.md` and the [Vega documentation](https://vega.github.io/vega/docs/).

## Visual Identity

- **visualType:** `deneb7E15AEF80B9E4D4F8E12924291ECE89A`
- **Bundled runtime:** Vega 6.2.0 / Vega-Lite 6.4.1 (since Deneb 1.8; use `v6.json` schema URLs)
- **Data role:** Single `dataset` role (all fields go into one "Values" well)
- **Default row limit:** 10,000 rows (override via `dataLimit.override`)
- **Provider:** `vegaLite` (default) or `vega` (when Vega-specific features needed)
- **Render modes:** `svg` (default, sharp text) or `canvas` (better for large datasets)

## Custom Visual Registration (Required)

Copying a working Deneb visual with `pbir cp` carries its registration. For a new visual, inspect
`publicCustomVisuals` with `pbir get` and update the complete list through `pbir set --json`,
preserving any existing ids. Never edit `report.json` directly.

## Workflow: Creating a Deneb Visual

### Step 1: Add the Visual

Create the visual and bindings through `pbir`:

The rest: https://github.com/data-goblin/power-bi-agentic-development/blob/HEAD/plugins/custom-visuals/skills/deneb-visuals/SKILL.md