MARKLESS_CALLBACK_PROP_ARITY_UNSUPPORTED

Callback props accept at most one parameter: a Markless compiler error.

Error from the compiler, while it builds your .tsrx files.

What happened

Markless prints the message, the reason, and a suggestion:

MARKLESS_CALLBACK_PROP_ARITY_UNSUPPORTED: Callback prop `<propName>` is unsupported because <value>. Lazy callback symbols accept zero parameters or one simple identifier, object pattern, or array pattern without top-level defaults or rest.
The callback transport carries one callback value across the lazy-symbol boundary. Multiple parameters, defaults, and rest bindings do not have supported parameter semantics when the symbol runs.
Pass a single object instead — change `(kind, payload) => ...` to `({ kind, payload }) => ...` and invoke the callback with one object value; remove parameter defaults and rest bindings.
https://markless.dev/errors/MARKLESS_CALLBACK_PROP_ARITY_UNSUPPORTED

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How to fix it

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Where it comes from

@markless/compiler raises this code. Source:

• packages/compiler/src/passes/semantic-graph/diagnostics.ts

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