During their work on the zed-industries/zed repository, asistentedeprincipios2 developed targeted improvements to the Agent Tool Guidance flow using Rust for backend development. They implemented conditional logic in the system prompt to ensure tool guidance appears only when the agent profile has tools enabled, reducing unnecessary context and preventing failed tool usage attempts. This approach improved reliability and user experience by aligning tool availability with the selected agent profile. Additionally, they resolved a release-time issue where the Minimal profile incorrectly surfaced all tools, enhancing prompt clarity and reducing invocation errors. Their contributions demonstrated thoughtful engineering and effective cross-team collaboration.