The phrase I've found useful is Yegge's "Crystalized Cognition" https://steve-yegge.medium.com/software-survival-3-0-97a2a62...

Claude can 100% build you your own basecamp quickly, but there is a lot of good thinking that has gone into a product. Edge cases. Integrations. Clarity of thinking and ways to extend it. Agents love standing on the shoulders of good crystalized cognition (grep, curl etc), but I think that extends even beyond base CLI tools.

Which is not to say that "cheapest alternative" won't be much more important than it is now, but the tools that will succeed are the ones that solve clear problems with accessible CLI/tool-call like interfaces and take significant load off the agent running, while doing it efficiently and cost effectively so they are clearly better than building it yourself.

To be fair, there will be a ton of margin collapse and that will be unachievable by a lot of current orgs / structures.