What is powerbi-custom-visuals?

A guide to building Power BI custom visuals, which are user-made chart components packaged as .pbiviz files. It covers the TypeScript project and the steps needed to load the visual into a report.

Use it to scaffold a visual project, develop its code, create a .pbiviz package, and add or remove it from a PBIR report.

It gives a defined process for creating, checking, packaging, and registering visuals that Power BI does not include by default.

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

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 santoshkanthety/powerbi-agent --skill powerbi-custom-visuals

Clone the repo

git clone --depth 1 https://github.com/santoshkanthety/powerbi-agent

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/santoshkanthety/powerbi-agent/powerbi-custom-visuals/github.svg)](https://agentmods.dev/skills/santoshkanthety/powerbi-agent/powerbi-custom-visuals)

Your own site

<a href="https://agentmods.dev/skills/santoshkanthety/powerbi-agent/powerbi-custom-visuals"><img src="https://agentmods.dev/badge/skills/santoshkanthety/powerbi-agent/powerbi-custom-visuals/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/santoshkanthety/powerbi-agent/powerbi-custom-visuals"><img src="https://agentmods.dev/badge/skills/santoshkanthety/powerbi-agent/powerbi-custom-visuals.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 113 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,418 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	$0.00113	$0.01418
Opus 5	$0.00056	$0.00709
Sonnet 5	$0.00023	$0.00284
Haiku 4.5	$0.00011	$0.00142

Measured 11d ago against content hash 50f08200625d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, 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 11d 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/powerbi-custom-visuals/SKILL.md · 126 lines

How it starts

The opening of the file, as written. The whole thing — 126 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Authoring Power BI custom visuals end-to-end

Author a TypeScript Power BI custom visual, package it as .pbiviz, and embed it in a PBIR report so Power BI Desktop loads it on open. Three CLI commands plus the powerbi-visuals-tools SDK do the work; this skill drives Claude through the iteration loop.

Toolchain

Tool	Role
`pbiviz` (`powerbi-visuals-tools`)	Scaffolds, type-checks, packages
`pbi-agent visual import-custom`	Copies `.pbiviz` into `RegisteredResources/`, registers in `report.json`
`pbi-agent visual list-custom`	Shows what's currently registered (embedded + public)
`pbi-agent visual remove-custom`	Removes registration + on-disk `.pbiviz`

Confirm the user is on a machine that can run Node before installing anything.

node --version          # need 18+ ; if missing, ask before installing
npm --version
npm install -g powerbi-visuals-tools
pbiviz --version

Pin SDK packages to known-good versions inside the visual project:

powerbi-visuals-tools matching the global pbiviz
powerbi-visuals-api matching the apiVersion in pbiviz.json

Scaffold

Always create the visual project as a sibling of the .pbip, never inside the .Report or .SemanticModel folders — Power BI Desktop will reject contaminated PBIR folders.

MyProject.pbip
MyProject.Report/
MyProject.SemanticModel/
mygaugevisual/         ← scaffolded here

pbiviz new mygaugevisual
cd mygaugevisual
npm install

Naming constraint: pbiviz new rejects names with anything other than letters and digits. Strip hyphens and underscores from any user-provided name before running it (my-gauge-v1 → mygaugev1).

Fill required pbiviz.json metadata

pbiviz package strict-validates author.name, author.email, visual.description, and visual.supportUrl. The fresh scaffold leaves them blank, so the first package call will fail on metadata before any code runs. Populate them up-front:

Read the full file on GitHub · 126 lines

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.

11d ago First seen · 126 lines · 113 tokens per session scan A 50f08200625d

Subscribe to this mod's changes

powerbi-custom-visuals is a skill published in the GitHub repository santoshkanthety/powerbi-agent (2 stars, last pushed 12d ago), licensed MIT. It adds 113 tokens to every session and 1,418 once invoked, about $0.0006 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 2026-08-31.

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