A Haystack pipeline can be perfectly wired and still unsafe. The retriever returns documents. Every component did its job. But if untrusted text moved through the pipeline as ordinary context, the trust boundary was lost. That is the problem this post is about. Not bad Python. A valid component connection only says: this value fits the next component It does not say: this value is safe to influen
TL;DR TestMu wins on price, faster setup, and community support. Use it if you're testing typical apps on phones and web browsers. Pcloudy costs more but tracks 60+ device performance metrics (battery, memory, thermal), supports IoT and smartwatches, is faster to connect, and handles script migration so you don't rewrite tests when switching. Both run parallel tests fine and work with Selenium,
Comparison: Haystack 2.0 vs. RAGatouille 0.3 for Building High-Accuracy RAG Pipelines for Developer Docs Retrieval-Augmented Generation (RAG) has become the standard for building LLM-powered tools that answer questions using private or domain-specific data. For developer documentation (dev docs) — which includes technical jargon, versioned APIs, code snippets, and structured reference material —