Worked on the Arize-ai/phoenix repository to enhance developer-facing documentation, focusing on clarifying the distinction between GraphQL Global IDs and REST hex span IDs for span annotations. The update introduced a targeted warning to guide users on correct API usage, aiming to reduce integration errors and support requests. Collaborated cross-team to ensure the documentation aligned with Phoenix API usage patterns, supporting faster onboarding for developers. The work leveraged skills in API design, GraphQL, and REST, with documentation authored in Markdown. No bug fixes were reported during this period, as the primary emphasis was on improving documentation quality and technical accuracy.