LowFile-scopeJava Plug & play

Clarify persistence/serialization with annotations

Annotate fields/props to explicitly control persistence and serialization (e.g., transient/ignored fields).

Why this matters

Prevents leaking internal fields and clarifies storage behavior.

Side-by-side examples engineers can pattern-match during review.

Avoid

private String internalCache; // no metadata

Prefer

private transient String internalCache; // not persisted/serialized

Bad

internal fields serialized by default

Good

mark cache fields transient

From the same buckets as this rule.

Critical
Avoid Returning Null in Non-Async Task Methods
Returning null from a Task or Task<T> method causes a NullReferenceException if awaited. Use Task.CompletedTask or Task.FromResult<T>(null) instead.
error-handlingreadability-refactor+1
Critical
Prefer `str.replace()` Over `re.sub()` for Simple Cases
Detect uses of `re.sub()` where regular expressions are not needed. For simple string replacements, `str.replace()` is more efficient and should be used instead.
performance-efficiencystack-python+1
Critical
Use Factory Method Injection in `@Configuration` Classes
Ensure that factory method injection is used in `@Configuration` classes instead of `@Autowired` field injection.
module-architecturestyle-conventions