Codifies the session-review process: read open issues for carry-over,
scan transcripts, rank by how often the same correction repeated, check
the current model docs before recommending, then apply or file.
scripts/scan-sessions.py enumerates top-level sessions in a window,
drops subagent transcripts, and flags swarm runs so a single 577-session
security scan does not read as 40% of the week's work.