Claude finished @ZanCorDX's task in 58s —— View job

Review of PR #897

• Read the diff and changed files
• Analyze changes and provide review

Changes: Adds an early validation in FlashbotsConfig::new_builder that bails if builder_name is empty.

No issues found. The change is minimal and correct:

• The builder_name field is a String with no serde default, so the only way it can be empty is if it's explicitly set to "" in config — this check catches that case with a clear error message.
• The validation is placed at the top of new_builder, failing fast before any resource allocation, which is the right pattern.
• Consistent with the existing validation style (e.g., the relay_bid_scrapers.is_empty() check on line 170).

LGTM — no concerns.