Built-in rule tags
Tags are a way to categorize rules and issues. Some built-in tags are language-specific, but many more appear across languages.
Most rules have some tags out of the box. Issues inherit the tags of the rules that raised them. Sonar provides a list of built-in tags and custom tags can be used. The Quality Standards administrator can add tags to rules and end-users can manage the tags assigned to their project's issues.
Here is a non-comprehensive list of what some of those built-in tags mean:
architecture: there is something questionable about the architecture of the code.
brain-overload: there is too much to keep in your head at one time.
bad-practice: the code likely works as designed, but the way it was designed is widely recognized as being a bad idea.
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, etc.
CWE: relates to a rule in the Common Weakness Enumeration. For more on CWE and on security-related rules in general, see Security-related rules.
lock-in: environment-specific features are used.
pitfall: nothing is wrong yet, but something could go wrong in the future; a trap has been set for the next person, and they’ll probably fall into it and screw up the code.
suspicious: it’s not guaranteed that this is a bug, but it suspiciously looks like a bug. At the very least, the code should be re-examined and likely refactored for clarity.
unpredictable: the code may work fine under current conditions, but may fail erratically if conditions change.
unused: unused code; for example, 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.
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