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Host

The host layer is what the two hosts, the TUI and headless, share about running the wizard as a process: how a run ends. It owns:

  • The exit. A host starts its exit with startHostExit and resolves an exit code; only the CLI and bin.ts call process.exit. wizardAbort ends a decided failure with the presenter its caller passes, and registerShutdown adds a hook the end runs first.

Entry and imports

The TUI and headless import it through @host/*: @host/wizard-abort for the exit. The CLI and the e2e harness may import it too.

The host layer may import @env, @shared/* and @utils/*, and nothing else: the programs, the agent, the TUI, headless and the CLI are out of its reach, and the programs and the agent never import it. See layer boundaries.

Where things live

What Where
The exit, aborts and shutdown hooks wizard-abort.ts