# mcp.caller.CallerIdentity.may_be_on

- **Module:** mcp.caller.CallerIdentity
- **Package:** tmux-mcp
- **Language:** Rust
- **Kind:** method
- **Source:** https://github.com/libtmux/libtmux-rs/blob/f0e37052c232636b61d095817046e6bfc8f2ca40/crates/tmux-mcp/src/caller.rs#L219
- **Page:** https://libtmux.org/en/rs/latest/mcp/reference/mcp-caller-calleridentity-may_be_on/

```
mcp.caller.CallerIdentity.may_be_on(self, server_socket: Option<&Path>, _socket_name: Option<&str>) -> bool
```

Whether this process might be running on the given server.

Malformed context and an unreadable target socket remain protected.
Complete identities on a different physical socket are foreign; a
socket basename alone never authenticates a caller.