Why this exists

Organisational theory has a recurring weakness: it cannot be run. Claims arrive in prose, illustrated by anecdote and defended by seniority. Debates about structure become narrative contests in which the most senior voice wins and a reorg gets tested on real people because there is nowhere else to test it first.

Fulcrum is the Decision Architecture model made executable. It models an organisation the way the books describe one (teams, domains, dependencies with propagation delays, authority placement, incentive skew), scores its structural health deterministically from 0 to 100 and valuates every legal move from blunder to great. There is no randomness in scoring: two people with the same model get the same number, which converts an argument about structure into an examinable model.

The numbers behave the way the books predict. Scale exposes structure: typical organisation archetypes collapse from 75.6 to 14.8 as they grow while well-designed ones degrade gently from 98.7 to 66.4. Moves are asymmetric: on the enterprise archetype the one available approval-layer move scores -9.40 while the best good move is worth +6.85, so a single blunder outweighs the best repair. And structural value lives at the leaves: in a generated organisation of 1,732 teams the best whole-organisation move is worth +0.024 while the median best local move is worth +9.7 in its own frame, which is why the app lets you drill into a leaf and see its move space.

It runs entirely on your machine: generate a level, model your own organisation or import one as JSON, then ask the guide for a move-by-move line to a stronger score. No account, no server, no telemetry. The claims are falsifiable by design: model a realistic organisation in which adding an approval layer improves structural health and the framework is wrong in a way anyone can inspect.

Full reasoning at crankthecode.com: Decision Architecture (how organisations fail and recover) and Decision Architecture Patterns (the Gang of Four design patterns applied to organisations) laid the foundations without which the later volumes would not have been viable; The Move Space builds on them to give Fulcrum its move classifications (blunder to great) and Relativistic Decision Architecture completes the theory.