Engineering review
How d20 checks work in an AI RPG
Why uncertain actions need visible difficulty, bounded modifiers, and consequences that agree with committed state.
What this article examines
Why uncertain actions need visible difficulty, bounded modifiers, and consequences that agree with committed state. The current release keeps creative model output separate from authoritative state, validates public contracts on the server, and treats retries and recovery as product behavior rather than hidden implementation detail.
Practical takeaway
Use the article as a technical case study, not as a promise that every provider, platform, or older campaign has identical behavior. Current feature availability is described on the feature hub, and exact prices come from the live catalog.
Limits
- Historical measurements belong to the release profile and date that produced them.
- No narration, embedding match, or client cache is authoritative game state.