$InitializationContexts

is a symbol whose value, if any, specifies a list of packages to read with Needs at the start of a Wolfram Language session.

Details

Persistent values of $InitializationContexts are typically set with InitializationValue[$InitializationContexts]={"context₁`",…}.
Values defined in different persistence locations on $PersistencePath are joined with Flatten.

Examples

Set a package to be read every time the kernel starts:

Wolfram Language code: InitializationValue[$InitializationContexts] = {"MyPackage`"}

Set a value that persists only during a front end session:

Wolfram Language code: InitializationValue[$InitializationContexts, "FrontEndSession"] = {"TestPackage`"}

View the current initialization value:

Wolfram Language code: InitializationValue[$InitializationContexts]

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