SkillsSkill 5: Optimize RAG Latency with Multi-Level Caching and Hybrid Searchdasroot.net·medium signal1. **Reduce embedding dimensions**: Apply PCA to compress from 768 to 256 dimensions — 40% search speed improvement with 98% accuracy retained (scikit-learn or HF Transformers)SourceSource pagedasroot.net↳ Follow the threadPolicy dependency / Stack layerHalluSquatting weaponizes LLM hallucinations to push botnet malware into agentsThe Hacker NewsStack layer / ContrastOpenAI launches ChatGPT Work, an agentic workspace on GPT-5.6, with Sol/Luna/Terra model tiersInfoWorldStack layerThorsten Ball: '2026 Is the Year Agents and Codebases Melt' — Judging Code Becomes the Core SkillRegister Spill (Thorsten Ball)Policy dependency / Stack layerKastra Launches Policy Enforcement for Claude Code, Cursor, and CodexHacker NewsStack layer / Threat patternAWS open-sources Loom, an enterprise agent platform built on Strands Agents + Bedrock AgentCore RuntimeAWS Open Source BlogStack layer / Threat patternTRACE Watermarks Agent Trajectories Against Adversaries Who Control the LogsarXivStack layer / Threat patternOpen-Source Multi-Agent Firewall Intercepts Both HTTP(S) and WebSocket LLM TrafficarXivStack layer / Threat patternSnyk's Evo Agentic Development Security Hit GA June 29 — an Enforcement Layer That Polices MCP Servers and Coding Agents at RuntimeSiliconANGLE