Developed and delivered a new feature for the babylonlabs-io/vigilante repository, focusing on enhancing cross-chain security within the BTC Slasher program. Implemented support for slashing event handling from OP stack consumer chains by introducing new subscription channels and processing logic to detect and act on equivocating finality providers. This work expanded the event-driven architecture to accommodate targeted evidence processing, aligning with goals for robust slashing across OP stack integrations. Leveraged backend development skills and expertise in blockchain technologies, utilizing Go to ensure maintainable and scalable code changes that improve operator confidence in finality governance and cross-chain slashing robustness.