Checkpoint Eibenreith ink architecture

README.md

@@ -140,6 +140,8 @@ Tag format:
 
 For Ink choices, put choice-local tags under the choice they belong to. Explicit keyboard letters are supported with `# letter[x]`, `#letter[x]`, or the colon form `#key:x`; the client reserves those keys first, then assigns the remaining visible choices from `1` through `0`, then `A` through `Z` in visible order. `#optional` renders the choice in italic. `# action[name]` or `#action:name` assigns an invisible action group: group order follows the first appearance of each action tag in the authored list, entries inside each group are randomized, and choices without an action tag are grouped last.
 
+`#auto` marks an Ink choice that the browser should choose automatically instead of rendering as a visible button. The choice should usually omit visible `[...]` text. `#auto(2)` waits two UI choice turns since the last global auto trigger. `#auto[keyword](2)` waits two UI choice turns only since the last auto trigger with the same keyword.
+
 Chapter:
 
 ```text