---
source_url: https://mp.weixin.qq.com/s/VHLC8m75AE1WaCZOQdvajg
ingested: 2026-06-04
sha256: TBD
type: raw-source
tags: [article, grep-vs-vector, retrieval, agentic-rag, harness, inline-delivery, longmemeval, context-engineering, pwc, arxiv-2605-15184, harness-engineering]
---

# Is Grep All You Need? — 检索 × Harness × 交付方式耦合

[正文见 entity 页面：[[entities/is-grep-all-you-need-pwc-retrieval-harness-coupling]]]