Duplicate Log Message (ARCH3162)

Key typescript.logging.duplicate-log-message · Severity info · Category logging

Identical log message literals repeated within the same class or module make log lines ambiguous about their source. It becomes impossible to tell which code path emitted them.

Incorrect

function transfer(from: string, to: string) {
  if (!accounts.has(from)) logger.warn("invalid account");
  if (!accounts.has(to)) logger.warn("invalid account");
}

Correct

function transfer(from: string, to: string) {
  if (!accounts.has(from)) logger.warn("invalid source account", { account: from });
  if (!accounts.has(to)) logger.warn("invalid target account", { account: to });
}

Fix

Make each log call unique with a distinguishing message and context.