Forgotten Symlinks in AI Config Repo Reveal a Broader Maintenance Gap

Developers working on the ai-assistant-dot-files repository discovered that symlinks for Cursor's native agent and skill support had already been committed in April 2026, but were never formally integrated into the project's maintenance systems. The symlinks pointed correctly to the shared source-of-truth directory, yet they were absent from parity checks, the platform registry, and the install flow, making them invisible to future contributors. When Cursor later shipped native Agent Skills and subagents, the team nearly duplicated work that had already been done. The real fix involved updating architecture docs, the platform registry, install scripts, and parity checks so the symlinks could not silently disappear. The incident highlights a distinct form of configuration drift where a structurally correct decision exists but lacks the surrounding documentation and automated verification to keep it meaningful over time.