Module shell_hook 

Shell-command hook adapter.

Wraps an external process as a PreHook or PostHook. The process receives HookContext as JSON on stdin and signals its decision via exit code + stdout JSON.

Exit-code contract (PreHook)

exit	stdout	result
0	{} or {"action":"noop"}	HookAction::Noop
0	{"action":"mutate", ...}	HookAction::Mutate(patch)
2	{"message":"..."} or plain text	HookAction::Block(reason)
any other	—	Err(HookIssue { class: Execution })

Exit-code contract (PostHook)

exit	result
0	Ok(())
any other	Err(HookIssue { class: Execution })

Structs

ShellCommandHook

An external shell command registered as a PreHook or PostHook.