OSSVectifyAI/PageIndex — Vectorless RAG Outperforms Embeddings at 98.7% AccuracyGitHub·high signalXBlueskyLinkedInCopy linkReplaces vector similarity with hierarchical tree indexing + LLM reasoning. 98.7% on FinanceBench. Has MCP server companion. 16K+ stars.SourceSource pageGitHub↳ Follow the threadShared entity / Actor rolePageIndex v0.2.11 adds a Flash engine that builds the document tree from layout statistics with no LLM in the structure stepGitHubStack layer / ContrastMicrosoft's Agent Lightning v1.0.1 ships an agent skill whose job is optimizing other agents, installed through gh skillGitHubPolicy dependency / Stack layerHalofy ships an open governance layer for agents with identity, policy, provenance, audit and signed erasureGitHubStack layer / ContrastCline v4.1.16 fixes hooks resolving from global state, and starts redacting credentials embedded in git remote URLs before they reach the modelGitHub (cline/cline)Stack layer / Contrastarchify Gained 1,002 Stars Today at 16,788 by Making Agent-Generated Diagrams Fail a Schema Check Before They RenderGitHub TrendingPolicy dependency / Threat patternmcp-shell Ships Security Off in One Deploy Path and Bypassable in the Other (CVE-2026-55580/55581/55582)GitHub Security AdvisoriesStack layer / ContrastKern Ships a 1.52 MB Container Runtime That Starts in 3.5ms and Serves Agents Over MCPGitHub (via Hacker News, 2026-08-24)Policy dependency / Update threadAgno 3.0.1 caches tool schemas across runs and loads session history incrementally, so response time stops scaling with conversation lengthGitHub (agno-agi/agno)