Thursday, June 18

TL;DR Google’s Gemini CLI cutoff takes effect today, locking out all free and paid non-enterprise users. OpenAI released its Deployment Simulation methodology for pre-release model behavioral testing.

Tools & dev

• dev-tools Gemini CLI stops serving free, Pro, and Ultra users today with no grace period; the replacement is Antigravity CLI, a closed-source Go rewrite that launched without the original’s source code. Google accepted 6,000+ community PRs over roughly a year, then moved the tool to enterprise-only and shipped a closed replacement. Enterprise Gemini Code Assist licenses are unaffected. Google Developers Blog · The Register · HN discussion

Models & research

• model-releases OpenAI published Deployment Simulation (Jun 16): strips assistant replies from 1.3M de-identified past conversations and replays the prompts through a candidate model before release to catch behavioral drift, novel misalignment, and reward hacking, including agentic tool-call scenarios. openai.com · MarkTechPost

OSS

• agentic-ai Agent-Reach (Panniantong) spiked to 1,161 GitHub stars today, a Python library that gives AI agents live read and search access to Twitter, Reddit, YouTube, GitHub, Bilibili, and more. GitHub
• claude-code anthropics/skills hit 519 stars today, Anthropic’s public repo of reference Agent Skills for Claude Code covering creative, technical, and enterprise workflow tasks. GitHub
• oss DeusData/codebase-memory-mcp hit 371 stars today, a C-based MCP server that indexes a codebase into a persistent knowledge graph for code intelligence queries. GitHub
• oss google-research/timesfm hit 606 stars today, Google’s pretrained time-series foundation model for forecasting. GitHub