Vibe CodingWindsurf Arena Mode: 40K Blind Votes, Speed Matters MostWindsurf Blog·high signalXBlueskyLinkedInCopy linkFirst real-world in-IDE benchmark. Opus 4.6 tops overall. Speed matters as much as quality. No model exceeds 80% win rate.SourceSource pageWindsurf Blog↳ Follow the threadPolicy dependency / Stack layermcp-shell Ships Security Off in One Deploy Path and Bypassable in the Other (CVE-2026-55580/55581/55582)GitHub Security AdvisoriesPolicy dependency / Stack layerMCP-Universe RL trains tool-use agents by using MCP servers as the RL environment interfacearXivStack layer / ContrastOrnith-1.5 Ships 9B Dense, 35B MoE and 397B MoE Under MIT, With the 397B Claiming 86.0 SWE-bench Verified Against Claude Opus 4.8's 85.8Hugging FaceStack layer / ContrastNIS-Agent isolates context at two decision points to fix agents grading their own prior search stepsarXivStack layer / ContrastMicrosoft's Agent Lightning v1.0.1 ships an agent skill whose job is optimizing other agents, installed through gh skillGitHubStack layer / Threat patternSkillPreflight Publishes a 100-Point Scorecard for Agent Skills and a Benchmark of 40 Public OnesGitHub (via Show HN, 2026-08-25)Stack layer / Threat patternSkillBloat turns a poisoned agent skill into a 5.4x to 10.1x token bill, with no data exfiltration involvedarXivPolicy dependency / Stack layerExpanding a RAG Index Flipped 10.25% of Answers While Accuracy Moved Only 1.5 PointsarXiv 2608.22856