Agile Manifesto was published in 2001. He defined the values ββand principles on the basis of which all the many practices used in software development, both new and pre-existing, were divided into two parts - Agile practices and non-Agile practices.
For example, unit testing, poker planning, daily stand-ups have become considered Agile practices.
On the other hand, staff fines, preparation and signing of a full technical task, separation of teams according to their functional characteristics (departments of architecture, development, quality) were not included in the Agile list.
The reasons why a particular practice is considered by Agile or vice versa are not always obvious.
This article is an attempt to rethink the practices I know of Agile, to formulate simple and clear criteria for which practice can be considered Agile and which not.

I will build the article as follows. First, I will propose the criteria, then I will test them with examples.
Criteria
Practice (as well as an idea, value, principle, or even the whole framework) will be considered Agile if it meets at least one criterion (and does not contradict all the others). Conversely, if a practice contradicts at least one criterion, it will not be considered Agile.
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Conclusion
The above criteria are not a substitute for the manifesto. But they help me a lot in my daily work. With their help (in the pictures) I explain what it means to be Agile. With their help, I evaluate what I encounter. I would like to know what you think about it.
Please write in the comments, is it always obvious to you that this or that Agile practice is? How do you resolve this issue?
Write down which Agile or non-Agile practices do not meet, in your opinion, the proposed criteria. Suggest your criteria.