Stack layer / Threat pattern
CROSS-CATEGORY: Four Products Shipped Pre-Execution Assurance for Agent Tools in 48 Hours
TDQS, Apify, Product Hunt and StartupCorners digest
Contrast
Anthropic's new consumer system prompt bans lyrics, SVG logos and ASCII-art copyright workarounds
Simon Willison's Blog
Policy dependency / Stack layer
Distilling 1,000 ML repos into 5,000 verified skills lifted an agent 134% on MLE-bench with the model and budget held fixed
arXiv 2609.02749
Policy dependency / Stack layer
Agentic Settlement Protocol Adds Escrow and Three Deadlines Because x402's Atomic Payment Fails Real Commerce
arXiv 2609.02208
Stack layer / Threat pattern
CrewAI 1.15.19 downgrades its own telemetry from core count to a coarse machine-size band
GitHub
Stack layer / Update thread
Nathan Sobo argues Ted Nelson's Xanadu was always a spec for agents, not humans
Zed Blog (Nathan Sobo)
Same source domain / Semantic neighbor
Simon Willison flags the Astra harness gap and a possible long-context breakthrough before he has even tested it
simonwillison.net
Stack layer / Contrast
The Post-Training Method, Not the Data, Decides How Refusal Is Computed Inside a Model
arXiv 2609.03887