Module errors 

Structured error types (thiserror) and sysexits-style exit codes. Structured error types for ssh-cli.

Defines crate::errors::SshCliError with domain error categories used by the CLI. Display strings are technical English (lowercase, no trailing period — G-ERR-01). Localized UI copy belongs in i18n.

Errors contract (G-ERR)

• Prefer typed variants over [SshCliError::Generic].
• Preserve std::error::Error::source via helpers [SshCliError::tls_src] / [SshCliError::channel_src] instead of embedding {e} in a flat string.
• Agents must read [SshCliError::error_code] + [ErrorClass], not parse Display.

Modules

exit_codes

Process exit codes aligned with sysexits.h and Unix signal conventions.

Enums

ErrorClass

High-level error class for agent retry policy (Rules Rust — retry/backoff).

ErrorLayer

Stack layer where the failure was observed (diagnostic only).

RetryKind

Detailed retry kind returned by SshCliError::retry_kind.

SshCliError

Domain errors produced by ssh-cli operations.

Functions

anyhow_is_broken_pipe

Walks anyhow / nested sources looking for a broken-pipe I/O error.

io_error_is_transient_network

Classifies std::io::Error kinds that are typically transient on the network path.

is_broken_pipe

Returns true when err is a broken-pipe condition (EPIPE / SIGPIPE path).

Type Aliases

ErrorSource

Shared source box for layered errors (Send + Sync for fan-out tasks).

SshCliResult

Result alias using SshCliError.