Worked on enhancing the developer experience for the hashicorp/vault repository by improving the documentation for the Transit Secrets Engine API. Focused on adding the HMAC type to the API reference, the work aimed to increase clarity and completeness for users integrating with Vault Transit. The approach involved updating transit.mdx using Markdown and MDX, ensuring that the documentation accurately reflected current API capabilities. Collaboration was managed through Git-based workflows, with attention to changelog hygiene and cross-team communication. These updates reduced ambiguity for developers, streamlined onboarding, and aligned the documentation with evolving API design standards, supporting faster and more reliable integrations.