Slate

Type: inheritance and proof-substrate reference

Slate matters here because it is both the inheritance pressure and the thing being rewritten.

Why it matters

• legacy Slate shows exactly why decorate became a bad abstraction boundary
• local Slate v2 already proves runtime ids, bookmarks, and projection slices
• the best architecture here is a hard cut from the weakest legacy assumptions

Strongest local evidence

• ../slate/Readme.md
• .tmp/slate-v2/packages/slate/src/interfaces/editor.ts
• .tmp/slate-v2/packages/slate-react/src/projection-store.ts
• docs/slate-v2/decorations-annotations-cluster.md

Limits

• upstream Slate’s README still reflects broad flexibility more than final architecture discipline
• the research value is in inheritance pressure and local v2 proof, not blind preservation