Methodology
A tool earns its place.
A polished interface is not evidence that a result is useful. These are the minimum standards for anything this domain recommends or publishes.
Source the important inputs
Prices, limits, rules, and product capabilities should point to the organization responsible for them. Every time-sensitive input needs a visible review date. When reliable market benchmarks do not exist, defaults must be labeled as assumptions rather than disguised as facts.
Show enough of the method
Visitors should be able to understand what the tool includes, what it leaves out, and which assumptions change the answer. A model that cannot be challenged cannot earn trust.
Keep ownership visible
Every working surface needs a maintainer and a review loop. If the data becomes stale or the original job disappears, the tool should be updated, archived, or removed.
Separate tools from sales pressure
A useful answer should remain useful even if a visitor never buys anything. Sponsorship, referral, or commercial relationships must never silently determine the result.
The Supply Yard Scenario Planner runs locally in the browser and labels its starting values as illustrative. The HighLevel cost calculator remains in the Get Your Awesome library so it can share one update system with related utilities.