finding-data-metacat

Query Mu2e datasets and files with metacat, Rucio, and mdh tools.

4|Updated Feb 11, 2026
One-click install
npx skills add https://github.com/Mu2e/aitools --skill finding-data-metacat
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: finding-data-metacat
Source: https://github.com/Mu2e/aitools/tree/main/skills/finding-data-metacat
Command: npx skills add https://github.com/Mu2e/aitools --skill finding-data-metacat

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) and references (resource) components.

What problem does it solve?

This Skill provides a comprehensive guide and set of tools for efficiently finding, querying, and managing data within the Mu2e experiment's modern data handling stack, replacing legacy systems.

Core Features & Use Cases

  • Data Discovery: Query datasets and files using the metacat command-line tool.
  • Metadata Management: Understand and work with file naming conventions, namespaces, and Data Identifiers (DIDs).
  • Data Location & Access: Find file locations on dCache (tape, disk, scratch) and generate URLs for access.
  • Data Movement: Prestage files from tape to disk and upload personal files to dCache.
  • Use Case: A researcher needs to find all simulation files for a specific run, check their storage location, and if they are on tape, request them to be prestaged for analysis.

Quick Start

Use the finding-data-metacat skill to list all production datasets.

Frequently Asked Questions about finding-data-metacat

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I find Mu2e simulation datasets using metacat?

You can find Mu2e simulation datasets by using the metacat command-line tool to query datasets and files based on namespaces and Data Identifiers. The skill guides you through dataset discovery and metadata inspection.

How do I check if my Mu2e files are stored on tape or disk?

To check Mu2e file locations, use the skill to query dCache storage tiers including tape, disk, and scratch. It helps you determine where your files reside and generate URLs for direct access.

How do I prestage Mu2e data from tape to disk for analysis?

Prestage Mu2e data from tape to disk by following the skill's data movement instructions. It provides the necessary steps to request file prestaging from tape so your datasets are ready for analysis.

What setup is required to query Mu2e data with Rucio and metacat?

Querying Mu2e data with Rucio and metacat requires setting up your environment using mu2einit and muse. The skill relies on this initial setup to access the modern data handling stack for dataset and file management.

Can I upload personal files to dCache for the Mu2e experiment?

Yes, you can upload personal files to dCache using the skill's data management features. It provides guidance on uploading your own files into the Mu2e data handling stack alongside production datasets.

What is the best way to manage Mu2e file naming conventions and metadata?

The best way to manage Mu2e file naming conventions and metadata is by using metacat to understand namespaces and Data Identifiers. The skill helps you inspect metadata to properly handle file catalog information.