gmc

Use the `gmc` CLI for explicit gmc requests: generate commit messages, create or remove worktrees, prune merged worktrees, discover or sync shared resources, or run other `gmc wt` subcommands. Triggers mainly when the user invokes `/gmc` or mentions `gmc wt add`, `gmc wt prune`, `gmc wt share`, `gmc wt sync`, `gmc tag`, or asks to use gmc for commit or worktree automation. Do not use for generic git or generic worktree requests unless the user specifically wants `gmc`.