Deep dive into antirez's Linux vulnerability discovery, OpenAI's RFT guide, Gumloop's AI automation, Google's Gemini launch, Claude 4's system prompts, and Mistral AI's Document AI breakthrough.

Sources:
[1] https://threadreaderapp.com/thread/1926580457048588321.html
[2] https://cookbook.openai.com/examples/reinforcement_fine_tuning
[3] https://www.gumloop.com/blog/introducing-mcp-workflows
[4] https://www.wired.com/story/anthropic-first-developer-conference/
[5] https://arxiv.org/abs/2505.16953v1
[6] https://links.tldrnewsletter.com/RXxEO3
[7] https://simonwillison.net/2025/May/25/claude-4-system-prompt/
[8] https://mistral.ai/solutions/document-ai