If Yin.VM is the continuation engine, the Yang compiler is its expression engine. Together they form a dual system—Yin for execution, reception, and introspection; Yang for generation, expression, and emission.
Yang transforms high-level intents into continuations that Yin.VM can execute. It shapes the Universal AST (U-AST), seeds migrations, and ensures every emitted agent carries context for the runtime to honor.
| Axis | Yin.VM | Yang compiler |
|---|---|---|
| Modality | Passive — receives and executes continuations | Active — generates and emits continuations |
| Lifecycle | Runtime | Compile-time |
| Focus | Continuation execution | Continuation construction |
| U-AST role | Consumes the Universal AST (U-AST) | Produces the Universal AST (U-AST) |
| Metaphor | Represents potential realized | Represents potential becoming |