# libtmux_mcp.models.PaneContentMatch.is_caller

- **Module:** libtmux_mcp.models
- **Package:** libtmux-mcp
- **Language:** Python
- **Kind:** attribute
- **Source:** https://github.com/tmux-python/libtmux-mcp/blob/4daddc0dfca96c43bf521d818bf91564e1434760/src/libtmux_mcp/models.py#L181
- **Page:** https://libtmux.org/en/py/stable/mcp/reference/libtmux_mcp-models-panecontentmatch-is_caller/

```py
libtmux_mcp.models.PaneContentMatch.is_caller: bool | None = Field(
        default=None,
        description=(
            "MCP caller identity for this pane. ``True`` when the pane "
            "matches the caller's ``TMUX_PANE`` *and* lives on the same "
            "tmux socket as the caller's ``TMUX`` (verified via socket "
            "realpath); ``False`` otherwise, including the case where "
            "the pane id matches but the socket does not or cannot be "
            "proven to; ``None`` when the MCP process is not running "
            "inside tmux at all."
        ),
    )
```