Declarations¶

Declarations are the primary way to define named entities in AISL. Every declaration follows the same general syntax:

declare NAME as TYPE { ... }

Where NAME is an identifier and TYPE is one of the supported declaration types.

Declaration types¶

AISL supports five declaration types:

Type	Purpose
`model`	Define an LLM with configuration parameters
`dataset`	Load data from a JSON file
`file`	Reference a data file with metadata
`performance`	Group metrics for evaluation
`function`	Define a reusable function

How declarations work¶

Each declaration creates a named variable in the global scope. After a declaration, the name can be used in expressions and passed as an argument to functions.

declare my_model as model { model_name = "chat" }

// my_model is now available as a variable
let response = query_model(my_model, "Hello");

Lineage tracking¶

Declarations participate in AISL's object graph, which tracks data lineage and provenance. When a dataset references a model, or a performance block uses datasets and functions, these relationships are recorded. This allows you to trace which models and data sources contributed to any given metric result.