Systems Before Features
Why strong systems determine whether product teams can scale, adapt, and keep shipping over time.
product-managementsystems-thinkingproduct-philosophy
Writing
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Issuer-Sovereign Agentic Payments: Spending Rules at the Authentication Step
A design that puts agent spending rules inside the issuer authentication step.
agent-paymentsissuerauthenticationspending-rules
APort Vault: 225,964 Evaluations of a Check at the Point of Execution
A benchmark of a deterministic authorization check for tool-using AI agents.
agent-paymentsauthorizationbenchmarkai-agents
Compliance Question Answering: Retrieval for Answers That Trace to a Source
A study of retrieval-augmented answering over financial rulebooks with compact models.
complianceretrievalquestion-answeringrag