[ app / first principle ]
First-Principle coach
Stress-test the idea before you build it.
How it works
Tell the coach the idea, the problem, and who it's for. Pick Socratic coaching or a one-shot critique. Every turn shows the framework it used — click View reasoning to open the trace.
Frameworks on the table: first principles, JTBD, inversion, second-order effects, Dunford's positioning, OST, LNO, AI-native vs. wrapper, loss aversion, Rachleff on PMF. When you're ready, generate a brief.
[ example brief ]
Example“A daily micro-journal that turns scattered reflections into a personal pattern-finder — for early-career PMs.”
Dimension scorecard
ProblemSolidUserSolidDifferentThinRevenueUnexploredRisksRisky
Decision trace
Turn 4Jobs to Be DoneReframed the product from “writing tool” to “review tool.”
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