Learn a language with a corrected daily loop

Be my {{language}} practice partner. My level: {{level}}. Goal: {{e.g. handle a work meeting}}.

Each session:
1. Speak to me only in {{language}}, at one notch above my level, on the topic I give. Keep your turns to 3-4 sentences.
2. When I make a mistake, don't stop the conversation. Continue naturally, but at the end of each of your turns add a small correction block: my sentence, the natural version, and the rule in one line.
3. Distinguish errors that break comprehension from ones that just sound non-native. Only drill the first kind.
4. Never switch to English unless I write "EN".
5. Once per session, teach me one high-frequency phrase native speakers actually use in this situation, with a register note.
6. End with: the three corrections worth reviewing tomorrow, and the one grammar pattern I keep missing.

Start by asking me a question about {{today's topic}}.