Topaz treats a program as an executable statement of intent: readable enough to review and precise enough to run. The goal is not to maximize syntax, but to make ordinary programs direct and consistent.
One clear form
Ordinary code should have one preferred form. Domain names can remain in Unicode, effects and failures stay visible, and features that are not ready stay out of examples. This keeps code written by people and code generators equally readable.
Predictable execution
When a selected target supports a program, the same source should preserve its visible behavior whether it is run directly, compiled to a native program, or emitted as Python. The current SPEC defines values, ordering, errors, and cleanup while leaving implementations free to choose their internal representation. A target that cannot preserve required behavior must reject the program explicitly.
Multiple useful outputs
Rust, Python, and Web outputs serve different deployment needs without creating separate Topaz dialects. A program is checked once, then sent to a selected output path that supports it. Unsupported forms are rejected instead of being given a target-specific meaning; differences between paths that accept the same source are treated as compiler bugs rather than language choices.
Small surface, deep policy
A focused grammar and standard library give readers, tools, and implementations the same target. Topaz can grow, but new features should arrive with defined behavior, working implementations, examples, and documentation.
Real programs guide growth
Maintained applications reveal which strings, numbers, collections, files, packages, and diagnostics are actually missing. Bounded LIT and Lispex integration also exercises recursion, portable values, state, printing, and errors. Product evidence sets priorities without adding one-off syntax.
Honest status
The documentation distinguishes features available in the current release from future plans. Limits are stated on the page where they matter, without turning implementation details into part of the public language.