Worked on enhancing distributed tracing within the hectorqin/hyperf repository by implementing SPAN_KIND_RPC_CLIENT tagging for database, HTTP client, and Redis operations. This feature improved the clarity and context of tracing data, enabling more effective observability and faster debugging across backend services. The technical approach focused on precise tracer client tagging, ensuring correct SPAN_KIND_RPC_CLIENT labeling throughout the codebase. Leveraged PHP for backend development, with an emphasis on performance optimization and tracing best practices. The work demonstrated a commit-driven workflow, contributing targeted changes that strengthened traceability and provided deeper performance insights for distributed systems using the Hyperf framework.