Aleena tracks decision rationale across Slack, meetings, and PRs.

The paper frames the "why did we build it this way" problem as a continuous alignment lifecycle. A decision starts in a Slack thread, gets refined in a meeting, lands in a PR, and loses its original rationale along the way. Aleena uses an agent to preserve that rationale across the fragments. This speaks directly to solo and small-team knowledge loss, where the reasoning behind a choice evaporates faster than the code that encoded it.