태그(tag)를 사용해 규칙과 이슈들을 분류할 수 있습니다. 일부 태그들은 특정한 언어에서만 사용할 수 있지만, 대부분의 태그는 언어에 관계 없이 사용할 수 있습니다. 주로 상용하는 태그 목록 및 각 태그의 의미는 다음과 같습니다:

brain-overload - 한 순간에 고려해야할 사항이 너무 많음(즉, 너무 복잡함)
bad-practice - 해당 코드는 의도한 바와 비슷한 방식으로 동작하나, 일반적으로 해당 코드의 설계가 잘못된 방식으로 인식됨.
bug - 무언가가 잘못되어 프로덕션 이휴 영향을 미칠 가능성이 있음.
cert - relates to a rule in a CERT standard. There are currently three CERT standards: C, C++, and Java. Many of these rules are not language-specific, but are good programming practices. That's why you'll see this tag on non-C/C++, Java rules.
clumsy - extra steps are used to accomplish something that could be done more clearly and concisely. (E.G. calling .toString() on a String).
confusing - will take maintainers longer to understand than is really justified by what the code actually does
convention - coding convention - typically formatting, naming, whitespace...
cwe - relates to a rule in the Common Weakness Enumeration. For more on CWE in SonarQube language plugins, and on security-related rules in general, see Security-related rules.
design - there is something questionable about the design of the code
lock-in - environment-specific features are used
misra - relates to a rule in one of the MISRA standards. While the MISRA rules are primarily about C and C++, many of them are not language-specific (E.G. don't use a float as a loop counter) but are simply good programming practices. That's why you'll see these tags on non-C/C++ rules.
owasp-.* - relates to a rule in the OWASP Top Ten security standards. Note, that the OWASP Top Ten is a list of high-level vulnerabilities which translates to many, many potential rules.
pitfall - nothing is wrong yet, but something could go wrong in the future; a trap has been set for the next guy, & he'll probably fall into it and screw up the code.
sans-top25-.* - relates to the SANS Top 25 Coding Errors, which are security-related. Note that the SANS Top 25 list is pulled directly from the CWE.
security - relates to the security of an application.
suspicious - it's not guaranteed that this is a bug, but it looks suspiciously like one. At the very least, the code should be re-examined & likely refactored for clarity.
unpredictable - the code may work fine under current conditions, but may fail erratically if conditions change.
unused - unused code, E.G. a private variable that is never used.
user-experience - there's nothing technically wrong with your code, but it may make some or all of your users hate you.