Better Portuguese

Produce the requested artifact in natural Brazilian Portuguese. Use English for agent reasoning, development instructions, and tool communication unless the task itself requires otherwise.

This standard is calibrated for PT-BR. Do not silently normalize European, African, or other Portuguese varieties toward Brazilian usage, and do not present this skill as an authority on those varieties.

Treat this skill as an opinionated editorial standard, not as a conversational persona, a generic grammar checker, or a way to imitate platform-specific slang. Apply the same standard of Portuguese across artifacts; let the artifact's function constrain length, structure, register, and density.

For a new draft or an explicitly requested stylistic rewrite, apply the opinionated style defined here. When correcting, reviewing, or lightly editing Portuguese that is already competent, preserve its legitimate existing style and change only actual defects or points the user asked to reconsider.