How do I set up the local mirror?

You can run the included PowerShell setup script which clones the bc-w1 repository to a specific local folder and configures git ignores to prevent search noise in your main project.

Why use this instead of browsing GitHub?

Local searching via tools like ripgrep is significantly faster and allows AI agents to synthesize information across multiple modules instantly without network latency or UI constraints.

What is the Business Central W1 Reference skill?

It is a specialized capability for Claude Code that allows it to search a local mirror of the Microsoft Business Central W1 source code to find events, logic patterns, and table definitions.

Does this include the latest Business Central version?

Yes, the skill includes an update script designed to fast-forward the local mirror to keep pace with the monthly cadence of the standard W1 source.

Can I use this to find AL test examples?

Absolutely. It covers over 30 test apps and the full test framework, making it easy to find examples of Library-Sales, Library-Inventory, and other helper library usage.

Business Central W1 Reference

Name: Business Central W1 Reference
Author: FBakkensen

byFBakkensen

0•

Developer Tools

Enables high-speed local searching and exploration of standard Microsoft Business Central (W1) source code to accelerate AL development.

This skill provides a comprehensive local mirror of the standard Business Central W1 source code, allowing AI agents and developers to instantly reference core application modules, system utilities, and API implementations. It is specifically designed to help AL developers find event subscribers, understand complex implementation patterns like document posting or discounts, and leverage standard test libraries without needing to browse remote repositories. By using local search tools like ripgrep and structural search with ast-grep, it streamlines the discovery of internal BC logic and best practices directly within the AI development workflow.

Key Features

01Advanced structural search for EventSubscribers, APIs, and table/field definitions

02Comprehensive reference for standard BC test patterns and helper libraries

03Automated setup and update scripts for maintaining the source mirror locally

040 GitHub stars

05Local mirror of ~165 core BaseApp modules and ~80 system application modules

06Integration with AI subagents for open-ended code exploration and pattern discovery

Use Cases

01Analyzing how standard Business Central implements specific business logic like pricing or VAT

02Finding specific events to subscribe to during posting or validation processes

03Referencing APIV2 pages and codeunits for building robust external integrations

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add fbakkensen/bc-agentic-dev-tools bc-w1-reference

For use in Claude.ai and ChatGPT

Download Skill