The source of authorization, or authorship, may be misrepresented. A case would be unsolicited ghost-writing. The protocol of a genre may assign sharply distinct and counterposed roles to participants. An instigator may allow participants to presuppose these distinctions of roles, but instruct them to act in ways which in fact collapse these role differences. There is no such thing as pure syntax.
All syntax involves descriptive syntax.
Before making a stipulative definition, you must check that the definiendum is unencumbered by a prior social contract. In fact, the addressee supplies the personalistic intent by imputation, in appropriating the symbol or declaration in a way which has been learned. In the conventional reality, the personalistic intent is necessary but unprovable. A. Suppose the only contribution of the instigator of a performance is to tell the performers how to use a found schedule as a script. The concrete content of the script is never known to the instigator.