## libpanto

- [x] user-provided system prompt
- [x] polish zig API
- [x] C ABI
- [x] Agent compaction with custom compaction prompts
- [x] Agent auto-compaction
- [x] image upload support
- [ ] google gemini native provider
- [x] openai responses API native provider
- [ ] non-streaming
- [ ] one-shot simple API
- [x] message-level error retries
- [x] abort/cancellation
- [ ] user message queueing: steering, follow-up
- [ ] step cap, stop conditions