Tailscale

Inspect the project's policy file, deployment manifests, CI workflows, and relevant runtime code before choosing changes, then check what the local client and the tailnet actually run. A feature's availability depends on the client version, the plan, and its release stage.

Ground commands, flags, limits, and availability in local help and current official docs. Do not install tools, join a tailnet, or create keys, nodes, or policy merely to inspect them.

command -v tailscale && tailscale version   # client version
tailscale version --daemon                  # tailscaled version, when it differs
tailscale --help; tailscale <subcommand> --help
tailscale status --json                     # peers, versions, routes, health