Summary

The archon setup wizard hardcodes only Claude and Codex in the AI assistant multiselect. The Pi community provider (builtIn: false) is never shown, so users cannot select it as their default assistant during setup.

Current behaviour

◆  Which built-in AI assistant(s) will you use? (↑↓ navigate, space select, enter confirm)
│  ◻ Claude (Recommended) (Anthropic Claude Code SDK)
│  ◻ Codex

Pi does not appear.

Root cause

Two places in packages/cli/src/commands/setup.ts are hardcoded:

1. collectAIConfig() — the multiselect options array is a static list of Claude and Codex; it never consults getRegisteredProviders().
2. Auth collection — dedicated flows exist for Claude (collectClaudeAuth) and Codex (collectCodexAuth); there is no equivalent for Pi (nor is one needed — Pi credentials are managed by the pi CLI under ~/.pi/, not by Archon env vars).

Expected behaviour

Pi appears in the list as a selectable option. Because Pi manages its own auth externally, selecting it should skip credential collection and simply write DEFAULT_AI_ASSISTANT=pi to the env file.

Suggested fix

• Append community providers from getRegisteredProviders().filter(p => !p.builtIn) to the multiselect options, labelled with their displayName and a community hint.
• In the post-selection logic, skip auth collection for any provider that is not Claude or Codex.
• Set defaultAssistant correctly when Pi is the only or preferred selection.