SANJIESAN LORE / PRACTICAL GUIDE
A world rule needs a consequence
“Magic is rare” sounds like a rule, but it leaves the writer with several unanswered questions. Rare for whom? Hard to learn, hard to find or hard to afford? Start with one statement and follow it into an ordinary scene. The details you need will become much easier to see.
Put the rule in a character’s way
Choose a small action that somebody wants to complete. In an invented setting, this might be getting a message across a city before evening. Ask what your rule changes about that action. If unusual communication is scarce, who can use it, who cannot and what ordinary alternative remains? Keep the example in your own draft rather than presenting it as established lore.
Write one visible consequence into the scene. A character might wait, make a trade or choose a slower route. The rule now affects a decision instead of sitting in a separate encyclopedia paragraph that the story never needs.
Specify the limit before the exception
Write down the normal limit in terms that a scene can check. Identify what the rule applies to and what it does not cover. “Nobody can cross the boundary” needs a different note from “the gate stays closed after dusk.” One describes a universal prohibition; the other leaves questions about other routes and times.
When an exception is necessary, give it a reason and a consequence. Record who knows about it. An exception that solves the current problem without changing anything else can make the earlier limitation feel arbitrary. It is worth testing the ordinary rule again before adding another escape.
Follow the ordinary knock-on effects
Look at the people who live with the rule every day. What work, routine or expectation follows from it? You do not need to invent an entire economy. A brief note about how someone schedules a journey or stores a valued object can make the setting more tangible than another list of powers.
Ask a second character the same question from a different position. A rule may feel convenient to one person and restrictive to another. Keep those responses separate from the objective rule itself. A belief about the world can be mistaken without requiring the world to change underneath the story.
Keep a small continuity record
Give the rule an identifier and a short statement. Add the scenes that rely on it, the known exceptions and the current draft version. When you revise the rule, review those scenes before changing more details. A note that can be traced back to a passage is easier to maintain than a large detached glossary.
Distinguish draft proposals from accepted setting notes. If you are working within somebody else's established universe, keep the official source reference beside the relevant fact and put your additions in a separate area. A useful notebook makes uncertainty visible rather than silently turning every interesting idea into canon.