What it does:
- `t new "fix vault sync"` creates a git worktree and a branch and cds into it.
- `t claude`, `t codex`, `t grok`, `t gemini` launch an agent there and record that session against the worktree and branch.
- One task holds many conversations, from different agents, running at the same time in different panes. All of them reference the same worktree/branch.
- `t sessions` lists every conversation attached to the task and resumes the one you pick. `t find` greps across all of them.