@article{probedontpromptahiddenstateprobeformetad,
  title = {Probe, Don't Prompt: A Hidden-State Probe for Metadata Filtering in Multi-Meta-RAG},
  author = {Mykhailo Poliakov and Nadiya Shvai},
  year = {2026},
  eprint = {2607.03929},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2607.03929},
}