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Interface Layer

This layer owns Rust protocol or host-facing entrypoints that expose assembled product behavior. UI apps and delivery hosts remain under src/apps, src/web-ui, src/mobile-web, and BitFun-Installer with their nearest local AGENTS.md.

Modules

Crate	Responsibility	Local doc
acp	Agent Client Protocol interface over the assembled product runtime	AGENTS.md

Placement Rules

• Put protocol entrypoints here when they depend on assembly/core or an assembled product profile.
• Keep transport/protocol adapters in adapters.
• Keep reusable OS, filesystem, terminal, MCP, remote, and git implementations in services.

Dependency Boundaries

• Interface crates may depend on assembly/core to expose a selected delivery profile.
• Interface crates must not own product policy, reusable services, protocol transport internals, or execution primitives.