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Sourced AI briefs in publish order — newest first. Citeable originals live on the homepage under From Signal Desk.

AISep 21, 2026The Verge

Amazon blocks Meta’s Muse AI agent

Amazon just shut Meta’s Muse out of its storefront — less about one agent, more about who owns the checkout when shopping goes agentic.

AISep 20, 2026OpenAI

How V7 gives AI agents institutional memory

V7’s OpenAI case study is really about enterprise memory: graphs, citations, and model tiers so agents stop rediscovering the business on every prompt.