Keywords or vector search on their own don't get good results for high entropy queries. MCP type approach is good for low entropy things like fact-based single

Keywords or vector search on their own don't get good results for high entropy queries. MCP type approach is good for low entropy things like fact-based single source answers. [1] [1]: https://arxiv.org/abs/2504.07106 https://arxiv.org/abs/2504.07106