clustervision 0.9.21

clustervision CLI — search, read, and port AI coding-agent sessions across harnesses.

clustervision-0.9.21 is not a library.

cv — the clustervision CLI.

This file holds only the clap surface (Cli/Cmd) and the dispatch into the per-command modules under cmd/; shared helpers live in util.rs and cv blame in blame.rs.