◇ Could this help me?
Yes for the explanation, discounting the sales half. The first part is genuinely useful: most people using third-party harnesses have no idea they are routing programmatic invocations through a flat-rate plan, and understanding that distinction is what makes a surprise bill or a sudden limit comprehensible rather than arbitrary. The point that separate metering is not the same as a ban is also a fair corrective to how this kind of change usually gets reported. General practice, with two honest limits: the specific date and terms are secondhand and should be read from the official policy before anyone plans around them, and the repeated claim that the creator's own systems make all of this irrelevant is promotion rather than evidence, so take the mechanism and leave the conclusion.
Explain how my usage is actually metered, working from the current official policy rather than from memory or from a video. Specifically: what counts against my plan's limits, what is charged per token instead, and where programmatic invocation through the agent SDK or the command-line print mode falls. Then look at how I actually work, described below, and tell me which parts of it are flat-rate and which are metered, and what would change my bill the most. If I am relying on any third-party tooling, tell me honestly what it would cost if that usage were priced per token, so I know whether what I am building survives a pricing change.