tutti/.changeset/agent-gui-agents-directory.md

@tutti-os/agent-gui, @tutti-os/desktop

@tutti-os/agent-gui	@tutti-os/desktop
minor	patch

Replace AgentGUI's public provider-target catalog contract with a required, host-ordered agents directory projected from /agents. Agent selection, filtering, composer caches, workbench state, and launches now use exact agentTargetId identity; names, icons, owner badges, and availability come from the corresponding agent entry. Empty directories no longer synthesize local provider entries, one-agent views hide All, and multiple agents may share one runtime provider without being grouped or deduplicated.

Remove the old public providerTargets, providerRailMode, provider-target renderers, and defaultProviderTargetId surface. Desktop now feeds its agents snapshot through the new contract. Workbench hydration retains only a one-time legacy providerTargetId to agentTargetId state repair.