diff --git a/plans/0000-roadmap.md b/plans/0000-roadmap.md
index 2ba692e..8ddd0d4 100644
--- a/plans/0000-roadmap.md
+++ b/plans/0000-roadmap.md
@@ -169,7 +169,17 @@ the real design happens. The blurbs here stay deliberately loose.
   pools, and positioning arithmetic tight instead of holding them in
   its head. Deliberately loose; the design starts when we get here.
   *You can now: fight six goblins and the DM never loses count.*
-- [ ] **Phase 16 and beyond: ideas that have to earn it.** Character
+- [ ] **Phase 16: The real character sheet.** Phase 10's sheet is a
+  flat set of frontmatter keys, enough to persist a character and
+  nowhere near enough to represent one. 5e characters carry structure:
+  inventory and equipment, prepared and known spells, slots by level,
+  features, proficiencies, conditions. This phase standardizes how all
+  of it lives in the entry, which parts are frontmatter and which are
+  headed sections of the body, and grows the sheet tool and the
+  injected stat block to match. Deliberately loose; the shape should
+  come from what real play breaks first. *You can now: cast from a
+  spell list the sheet actually tracks.*
+- [ ] **Phase 17 and beyond: ideas that have to earn it.** Character
   creation, background world motion, advancement, name generation,
   colors and theming (the styles all live in `markdown::style` waiting
   for it). Each one starts as a conversation, not a commitment.