# libtmux::Server::run_chain

- **Module:** libtmux::Server
- **Package:** libtmux-cxx
- **Language:** C++
- **Kind:** method
- **Source:** https://github.com/libtmux/libtmux-cxx/blob/85e8bd603a322dc32bb8b9aeb1a72bcf36945f1d/include/libtmux/server.hpp#L121
- **Page:** https://libtmux.org/reference/cxx/libtmux-server-run_chain/

```
libtmux::Server::run_chain(chain: const Chain &) -> expected< std::string, CommandFailure >
```

Run a chain.

A chain that failed validation never reaches tmux, and says which step was wrong rather than surfacing a tmux message about it.