Engineering papers from Moltera.https://moltera.dev/https://moltera.dev/writing/the-second-mode/https://moltera.dev/writing/the-second-mode/Our long-form writing system has a second output mode that we have left behind on purpose while the architecture settles. What a lagging mode bought us, what it costs, and the rule that stops anyone spending on it too early.Sat, 10 Oct 2026 00:00:00 GMTarchitectureprompt-engineeringabstractionstestinghttps://moltera.dev/writing/which-paragraph-said-that/https://moltera.dev/writing/which-paragraph-said-that/A world model derived from prose instead of typed into a form, where every fact can name the sentence and the paragraph that established it. What per-fact provenance costs, what it makes possible, and when a form is the right answer instead.Tue, 22 Sep 2026 00:00:00 GMTarchitectureknowledge-graphprovenanceextractionhttps://moltera.dev/writing/measured-token-economics/https://moltera.dev/writing/measured-token-economics/In August 2026 a complete generation run made 64 model calls and cost seventeen cents; sending the finished book into one call cost eighteen. What we learned about agentic cost by paying the bills rather than the pricing page.Sat, 19 Sep 2026 00:00:00 GMTcost-modeltoken-economicscontext-windowmeasurementhttps://moltera.dev/writing/mcp-as-a-projection-of-the-tool-registry/https://moltera.dev/writing/mcp-as-a-projection-of-the-tool-registry/A customer wants to drive your product from outside it. Declaring your tools again in the new protocol's vocabulary ships in a week and leaves you with two definitions of what your system can do, drifting apart. What it takes to make the external surface a rendering of the internal one instead.Mon, 14 Sep 2026 00:00:00 GMTarchitecturemcptool-registry