# mcp.exec.RunOutcome.NoShell

- **Module:** mcp.exec.RunOutcome
- **Package:** tmux-mcp
- **Language:** Rust
- **Kind:** constant
- **Source:** https://github.com/libtmux/libtmux-rs/blob/f0e37052c232636b61d095817046e6bfc8f2ca40/crates/tmux-mcp/src/exec.rs#L82
- **Page:** https://libtmux.org/en/rs/latest/mcp/reference/mcp-exec-runoutcome-noshell/

The pane never acknowledged the command.

The keys were sent but the opening sentinel never came back. That is
what a pane looks like when it is not at a shell prompt: sitting in an
editor or a REPL, or still running something an earlier call left
behind. The text was typed into whatever is there.

The evidence is absence, so a deadline too short for the pane's shell
to have echoed anything yet looks the same. Read it as "nothing came
back in the time allowed" and check the pane with `snapshot_pane`
before concluding it is stuck.