Function normalizeSubreddit

apps/sim/tools/reddit/utils.ts:12–19

(subreddit: string)

 * @throws Error if the subreddit name contains invalid characters
 */
export function normalizeSubreddit(subreddit: string): string {
  const normalized = subreddit.trim().replace(SUBREDDIT_PREFIX, '')
  const validation = validatePathSegment(normalized, { paramName: 'subreddit' })
  if (!validation.isValid) {
    throw new Error(validation.error)
  }
  return normalized
}