powerbi-mcp: Skill for Claude Code

.claude/skills/powerbi-mcp-server-tester/SKILL.md

powerbi-mcp-server-tester is a skill for Claude Code from gurvinder-dhillon/powerbi-mcp. It costs 102 tokens per session (1,514 once invoked), scanned A, original, MIT.

An automated test setup for a Power BI MCP server, using MCP Inspector and Playwright to check its tools and Azure AD sign-in. Power BI is Microsoft's service for analysing and reporting on business data.

In plain words
What is it for?
Testing Power BI workspaces, datasets, and queries, confirming Azure AD credentials work, and producing test reports.
Why use it?
It helps catch broken server functions or authentication problems before they affect users, without checking every operation manually.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

This is gurvinder-dhillon/powerbi-mcp's own configuration. It tells Claude Code how to work on powerbi-mcp itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything powerbi-mcp configures →

Reuse

Borrowing it

Nothing to install: this file belongs to gurvinder-dhillon/powerbi-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/gurvinder-dhillon/powerbi-mcp/main/.claude/skills/powerbi-mcp-server-tester/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/gurvinder-dhillon/powerbi-mcp

Made for: Claude Code.

Wrote this? Show the measurements

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README.md
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Your own site · 80×15
<a href="https://agentmods.dev/skills/gurvinder-dhillon/powerbi-mcp/powerbi-mcp-server-tester"><img src="https://agentmods.dev/badge/skills/gurvinder-dhillon/powerbi-mcp/powerbi-mcp-server-tester.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 102 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,514 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00102 $0.01514
Opus 5 $0.00051 $0.00757
Sonnet 5 $0.00020 $0.00303
Haiku 4.5 $0.00010 $0.00151

Measured 12d ago against content hash 6c5d097fec41, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

powerbi-mcp-server-tester 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 12d 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.

.claude/skills/powerbi-mcp-server-tester/SKILL.md · 206 lines

How it starts

The opening of the file, as written. The whole thing — 206 lines — stays where its author put it; the contents beside it link to each section on GitHub.

PowerBI MCP Server Tester

Automated testing framework for the PowerBI MCP server that validates functionality, Azure AD authentication, and PowerBI tool implementations using MCP Inspector and Playwright automation.

Prerequisites

Before testing, ensure:

  1. Environment Variables: PowerBI credentials must be set in .env file

    • POWERBI_TENANT_ID - Azure AD tenant ID
    • POWERBI_CLIENT_ID - Application (client) ID
    • POWERBI_CLIENT_SECRET - Client secret value
  2. MCP Inspector: Installed globally via npx (no manual installation needed)

  3. Playwright MCP: Must be enabled as an MCP server

  4. PowerBI MCP Server: Must be in the powerbi-mcp project directory with server code in src/

Testing Workflow

Step 1: Verify Prerequisites

Ask the user to confirm:

  • "Please confirm your PowerBI environment variables (POWERBI_TENANT_ID, POWERBI_CLIENT_ID, POWERBI_CLIENT_SECRET) are set in your .env file"
  • "Should I test all PowerBI tools or focus on specific ones (workspaces, datasets, queries)?"

Step 2: Launch MCP Inspector

Start the MCP Inspector with the PowerBI MCP server (assumes you're in the powerbi-mcp directory):

# Background task - don't block on this
npx @modelcontextprotocol/inspector uv run run-server

Wait 5-10 seconds for Inspector to start, then read the output to get the Inspector URL.

Step 3: Automated Testing with Playwright

Use Playwright MCP to:

  1. Navigate to Inspector

    • Open the Inspector URL from the background task output
  2. Verify Connection

    • Click "Connect" button
    • Wait for "Connected" status
    • Verify server name and version appear
  3. List Available Tools

    • Click "List Tools" button
    • Count and record all available tools
    • Identify which tools are read-only (GET/list/read operations)
  4. Test Each Read-Only Tool For each read-only tool:

    • Click on the tool to view its details
    • Review parameters and their types
    • If the tool has optional parameters, test with defaults first
    • If the tool has required parameters, use sample values or ask user for test values
    • Click "Run Tool" button
    • Wait for result (success or error)
    • Record the outcome

Read the full file on GitHub · 206 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.

  1. 12d ago First seen · 206 lines · 102 tokens per session scan A 6c5d097fec41

Subscribe to this mod's changes

powerbi-mcp-server-tester is a skill published in the GitHub repository gurvinder-dhillon/powerbi-mcp (0 stars, last pushed 7mo ago), licensed MIT. It adds 102 tokens to every session and 1,514 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 2026-08-31.

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