Technically, you could say she didn't break any of them.
- The wind is the culprit, and we did not follow the wind's thoughts, and we saw different positions of clouds in the sky on page one, which is basically the same thing as seeing the wind.
- There was clearly nothing supernatural going on here. Her smelling thing is obviously just a totally normal detective skill.
- I personally didn't see any secret passageways.
- Kusuri didn't do anything particularly odd this chapter.
- They're Japanese, not Chinese. (Also, the rule is specifically referring to the racist character archetype of "strange mystic without morals," which also doesn't show up here.)
- Finding them previously isn't really an accident, and thinking they smelled like Rentarou isn't really "intuition."
- Again, it was the wind, not Hasuha.
- As soon as she remembered she had them, Hasuha made the fact that she had found the trunks being blown in the wind known.
- There is no Watson in this chapter.
- We were duly prepared for Kusuri and Yaku.
She does break several of
Van Dine's Commandments, though:
- (3) There must be no love interest. The business in hand is to bring a criminal to the bar of justice, not to bring a lovelorn couple to the hymeneal altar. (Rentarou is clearly a love interest.)
- (7) There simply must be a corpse in a detective novel, and the deader the corpse the better. No lesser crime than murder will suffice. Three hundred pages is far too much pother for a crime other than murder. After all, the reader's trouble and expenditure of energy must be rewarded. (There was no corpse.)
- (10) The culprit must turn out to be a person who has played a more or less prominent part in the story— that is, a person with whom the reader is familiar and in whom he takes an interest. (I couldn't care less about the wind.)
- (16) A detective novel should contain no long descriptive passages, no literary dallying with side-issues, no subtly worked-out character analyses, no "atmospheric" preoccupations. Such matters have no vital place in a record of crime and deduction. They hold up the action, and introduce issues irrelevant to the main purpose, which is to state a problem, analyze it, and bring it to a successful conclusion. To be sure, there must be a sufficient descriptiveness and character delineation to give the novel verisimilitude. (This chapter built Hasuha's + more minorly, the rest of Rentarou's Family's characterizations.)
Mr. Willard Huntington Wright is kinda silly, though, so she is clearly a perfect detective. Also, imagine Suu and Hasuha bonding over the numbered rules of Knox's Decalogue.