Module proxy 

ProxyCommand and ProxyJump consumers (PRD §5.8.2, M13).

M12 captured proxy_command and proxy_jump losslessly into super::ssh_config::ResolvedSshConfig so gitway config show mirrors ssh -G. This module is what M13 uses to actually consume those values when establishing the underlying SSH transport:

• tokens::expand_proxy_tokens expands %h %p %r %n %% in a ProxyCommand template.
• [stdio::ChildStdio] wraps a tokio::process::Child’s stdio in the [AsyncRead + AsyncWrite + Unpin + Send] surface that russh::client::connect_stream expects.
• [command::spawn_proxy_command] glues the two together: token- expand the template, spawn through the platform shell (sh -c on Unix, cmd /C on Windows), capture stdio.

Higher-level wiring — super::session::AnvilSession::connect_via_proxy_command and connect_via_jump_hosts — lands in M13.2 and M13.4. The jump-string parser and chain manager (jump.rs) land alongside M13.3 and M13.4.

Re-exports

pub use jump::parse_jump_chain;

pub use jump::JumpHost;

pub use jump::MAX_JUMP_HOPS;

pub use tokens::expand_proxy_tokens;

Modules

jump

ProxyJump chain parser + per-hop type.

tokens

Percent-token expansion for ProxyCommand templates.