The development in Business Central is evolving towards a model in which the programmer stops focusing on writing code line by line and moves on to defining goals and overseeing automated execution through AI agents. This approach, known as Agent-First Development, allows delegating complete tasks such as code generation, refactorings, build execution, and error correction.
In this article we will see how to apply this paradigm professionally in AL environments on Business Central SaaS, including reusable prompts and best practices aimed at real project environments.

Work model in Agent-First Development for AL
The workflow changes from:
- Manual development → execution → correction
a:
- Definition of objective → agent plans → executes → corrects → iteration
The senior developer becomes a solutions designer and technical supervisor.
Key principles for working with AI agents in Business Central SaaS
An agent works correctly if three factors are controlled:
- Correct context
- Precise prompt
- Precise prompt
Without these three elements, the result is inconsistent.
How to create professional prompts for AI developers

Every prompt in AI must contain:
- Clear functional objective
- Restrictions (do not touch standard, SaaS, events)
- Project context
- Acceptance criteria
- Validation step
Base example:
«Act as a senior Business Central developer…
Do not modify standard.
Use events.
Compile and correct errors.
Real use cases of Agent-First Development in Business Central

Creation of AL extensions in Business Central SaaS
Allows generating:
- tableextension
- pageextension
Good practices:
- Define field with DataClassification
- Avoid logic in triggers
Validations through events in AL
Always use EventSubscriber instead of modifying standard.
Example:
- Sales validation
- Business rules
Automatic refactoring of AL code
The agent can:
- remove duplication
- move logic to codeunits
- simplify triggers
Technical automation in Business Central SaaS
Typical use:
- compile
- download symbols
- publish
The agent executes commands and corrects errors automatically.
Debugging and error correction with AI
It allows you to:
- analyze errors
- locate cause
- apply fix
Reusable prompts for Business Central and AL

Example field creation:
«Add field to Customer…
Do not modify standard.
Compile»
Refactor example:
«Remove duplicate logic
Maintain behavior
Compile»
Advanced example (XLF):
Automate translations by reading ESP= notes from the generated file.
Good practices in Business Central SaaS
- Always use plan mode before executing
- Do not make massive changes
- Check diffs
- Work by functional blocks
Common mistakes when using AI in AL development
- vague prompts
- lack of context
- trust the result without validating
Conclusion on Agent-First Development in Business Central SaaS
Agent-First Development does not replace the developer, but rather amplifies their capability.
In Business Central SaaS it allows accelerating technical development, as long as functional and architectural control remains the responsibility of the senior consultant. In the next blog, we will see examples of professional prompt templates for AL (Business Central SaaS).
ABD, your Business Central partner

At ABD Consulting and IT Solutions We help companies get the most out of Microsoft Dynamics 365 Business Central through implementation projects, AL development, automation, and modernization of SaaS environments.
Our technical team works with advanced development methodologies focused on efficiency, scalability, and best practices, incorporating technologies such as artificial intelligence, process automation, and Agent-First development to accelerate projects without compromising quality or solution architecture.
As a technology partner specialized in Business Central, we support organizations in:
- Development of custom AL extensions
- Migrations to Business Central SaaS
- Business process automation
- Integrations with Microsoft 365 and Power Platform
- Performance optimization and evolutionary maintenance
- Government and good development practices in cloud environments
If you want to know how to apply new development methodologies on Business Central or need technical support in your AL projects, at ABD we can help you define a strategy adapted to your environment and business objectives.