Worked on the web-platform-tests/wpt-metadata repository to deliver new metadata documenting WebRTC H.264 constraints test results for Chrome. Focused on expanding test metadata coverage by adding detailed entries to the webrtc/protocol/META.yml file, enabling more deterministic validation of video constraints and improved traceability of test outcomes. Utilized YAML for metadata management and applied web platform testing skills to ensure accurate documentation of H.264 profiles and levels. Linked changes to a specific commit for full traceability and documented the metadata workflow to support future extensions and cross-repository governance, contributing to more robust CI verification and streamlined metadata-driven testing processes.