HighFile-scopeRuby Plug & play

Re-raise exceptions to preserve error context

Do not swallow errors; log with context and re-raise using `raise` (no args) or `raise new_error, cause: e`.

Why this matters

Preserves backtrace and supports failure propagation/retries.

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

Avoid

rescue => e
  Rails.logger.error(e)
  nil

Prefer

rescue => e
  Rails.logger.error("op failed", error: e)
  raise

Bad

rescue => e; nil

Good

rescue => e; raise

From the same buckets as this rule.

Critical
Avoid equality operators in loop termination conditions
Check if loops use equality operators (== or !=) in termination conditions. These can lead to infinite loops if the condition is never met exactly. Instead, use relational operators like < or > for safer loop termination.
error-handlingreadability-refactor
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
Avoid Using Boolean Expressions in `except` Statements
Detect `except` clauses that use `or` or `and` to catch multiple exceptions. This does not work as intended. Recommend using a tuple of exceptions instead.
error-handlingstack-python