What is powerbi-custom-visuals?

A development workflow for building custom Power BI visuals as distributable .pbiviz files, using TypeScript and the Power BI visual tools.

Creating reusable Power BI charts and other interactive report visuals with their own formatting controls.

It explains how to choose the right visual approach and take an interactive visual from setup through packaging and publishing.

powerbi-custom-visuals — Skill for Claude Code and Codex by Bilal14020

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent

npx skills add Bilal140202/the-lord-of-the-skills --skill data-goblin__power-bi-agentic-development

Clone the repo

git clone --depth 1 https://github.com/Bilal140202/the-lord-of-the-skills

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/skills/bilal140202/the-lord-of-the-skills/data-goblin__power-bi-agentic-development/github.svg)](https://agentmods.dev/skills/bilal140202/the-lord-of-the-skills/data-goblin__power-bi-agentic-development)

Your own site

<a href="https://agentmods.dev/skills/bilal140202/the-lord-of-the-skills/data-goblin__power-bi-agentic-development"><img src="https://agentmods.dev/badge/skills/bilal140202/the-lord-of-the-skills/data-goblin__power-bi-agentic-development/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/bilal140202/the-lord-of-the-skills/data-goblin__power-bi-agentic-development"><img src="https://agentmods.dev/badge/skills/bilal140202/the-lord-of-the-skills/data-goblin__power-bi-agentic-development.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 108 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,419 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00108	$0.01419
Opus 5	$0.00054	$0.00709
Sonnet 5	$0.00022	$0.00284
Haiku 4.5	$0.00011	$0.00142

Measured 8d ago against content hash bc81cf0d5b04, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

powerbi-custom-visuals scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/gondor/claude-code/data-goblin__power-bi-agentic-development/SKILL.md · 104 lines

How it starts

The opening of the file, as written. The whole thing — 104 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Power BI Custom Visuals (pbiviz)

Build distributable Power BI developer visuals: TypeScript/D3 visuals packaged as a .pbiviz file, written against the powerbi-visuals-api and built with the pbiviz CLI (powerbi-visuals-tools). This skill covers the full loop: scaffold, develop, live-preview, package, certify, and publish.

Pick the right tool first

This plugin holds five visual approaches. Choose before building:

deneb-visuals:    no-code Vega / Vega-Lite specs inside a report; no packaging, no TypeScript
python-visuals:   matplotlib / seaborn script visuals (static image, computes at render)
r-visuals:        ggplot2 script visuals (static image); R's stats ecosystem
svg-visuals:      SVG drawn by a DAX measure (ImageUrl); inline in tables/cards, no visual sandbox
powerbi-custom-visuals (this skill): a real .pbiviz developer visual, reusable across
                  reports and shareable on AppSource; full interactivity, formatting pane, certification

Reach for this skill when the need is a reusable, interactive, distributable visual with its own formatting pane. For a one-off chart in a single report, a sibling skill is usually faster and lighter.

Prerequisites

Node.js 20.19 or later (the powerbi-visuals-tools engine minimum)
pbiviz CLI: run via npx -y powerbi-visuals-tools <command>, or install it globally
Developer mode for live preview: enable the developer visual in Power BI Desktop, or turn on developer mode in the Power BI service

Core workflow

Scaffold: pbiviz new <VisualName> creates the project (src/visual.ts, capabilities.json, pbiviz.json, tsconfig.json, package.json, style/, assets/)
Implement the visual class in src/visual.ts. Implement the IVisual interface; the class name must equal visualClassName in pbiviz.json. Core methods: constructor (set up DOM and services), update (render on data/size/settings change), getFormattingModel (populate the format pane), destroy (cleanup)
Declare data and formatting in capabilities.json: dataRoles (the field wells), dataViewMappings (how roles map to the dataView), and objects (format-pane properties)
Build the formatting model with powerbi-visuals-utils-formattingmodel (FormattingSettingsService, cards, slices). A card name matches a capabilities.json object; a slice name matches a property
Live-preview: pbiviz start, then add the developer visual to a report and iterate against real data
Package: pbiviz package produces the .pbiviz under dist/; import it into a report

Read the full file on GitHub · 104 lines

Files

What ships with it

20 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

8d ago First seen · 104 lines · 108 tokens per session scan A bc81cf0d5b04

Subscribe to this mod's changes

powerbi-custom-visuals is a skill published in the GitHub repository Bilal140202/the-lord-of-the-skills (4 stars, last pushed 6d ago), licensed MIT. It adds 108 tokens to every session and 1,419 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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