# CallerIdentity.isOn(_:)

- **Module:** CallerIdentity
- **Package:** LibTmuxMCP
- **Language:** Swift
- **Kind:** method
- **Source:** https://github.com/libtmux/libtmux-swift/blob/254f8b2be7eb60cacc3ffcb3ea8e456784f582df/Sources/LibTmuxMCP/Caller.swift#L54
- **Page:** https://libtmux.org/en/swift/latest/mcp/reference/calleridentity-ison(_-)/

```
CallerIdentity.isOn(_:)(server: ServerIncarnation) -> Bool
```

Whether `server` is the tmux this process is running inside, including when caller and server reached its socket through different links.