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ai Oct 19 WhatsApp's help pages hid LLM instructions: dont recommend a regulator WhatsApp's help pages included text invisible to human readers but processed by AI systems. The discovery emerged in October 2026 when researchers reviewing the platform's support documentation found blocks of text embedded in hel... ai Oct 19 PyTorch-native TPU back end for vLLM vLLM TorchTPU enters the scene as a PyTorch-native TPU backend for the popular LLM serving framework. The project, packaged as vllm-torchtpu, lets teams run vLLM's standard PyTorch model definitions on Google Cloud TPUs without re... ai Oct 19 Profiling the Attack Surface of AI Agent Skills The rapid expansion of tool-using AI agents has introduced new security considerations around the "skills" these systems consume at install time. A 2026 arXiv paper by researchers analyzing 6,309 agent-skill listings from two mark... ai Oct 19 Elias in the Lighthouse, Again? Diagnosing Low Diversity in LLM Stories LLM-generated stories show very low variability across current models. A study sampling 20,000 total stories from four current models using five prompts found that 11 words occur in 88.3% of generated stories, with little differen... ai Oct 19 Autonomous agent loops with Gemini 4 Argon and GKE Agent Sandbox: Running untrusted code safely at scale Autonomous AI systems are only as useful as the actions they can verify. With the release of Gemini 4 Argon, multi-step reasoning and native tool calling allow agents to write data transformation scripts, generate infrastructure m... ai Oct 19 Caching in Gemini 4 Argon has some quirks Gemini 4 Argon introduced noticeable shifts in prompt-caching behavior that teams building AI agents should understand. At Induction AI, researchers explored how caching compares to earlier models and identified several quirks tha... ai Oct 19 Microsoft says AI agents are like insider threats as ‘frontier models can’t be trusted’ Microsoft Monday introduced new security features designed to protect enterprises from the growing threat of AI agents. The launch coincides with continued warnings from the company about dangers presented by AI and agents operati... ai Oct 19 FloatDoor: Platform-Triggered Backdoors in LLMs FloatDoor turns hardware floating-point differences into a silent LLM backdoor A paper submitted to arxiv on 17 June 2026 introduces FloatDoor, the first input-independent, platform-triggered backdoor attack against generative lar... ai Oct 19 Show HN: Taco - LLM compression that gives the same bytes on every CPU and GPU Taco: a lossless LLM compressor that produces identical bytes on every platform A new alpha compressor called Taco uses a GPT-2 language model to achieve lossless compression while guaranteeing bit-for-bit identical output across... ai Oct 19 Build a Basic AI Agent from Scratch: Session Management Session Management for AI Agents From Scratch Conversation persistence transforms a stateless model interaction into a resumable workflow. Without session saving, every engagement with an agent begins fresh. Notes capture conventi...