TASKS/AGENTS: record the category package split decision

AGENTS.md

@@ -1,7 +1,8 @@
 # AGENTS.md
 
 MujicaUI: court-gothic components for MyGo native UI. Go library, package `mujica`, module `mujicaui`.
-Progress truth: `TASKS.md`. Requirements: `PRD.md`.
+Progress truth: `TASKS.md`. Requirements: `PRD.md` and `docs/prd/ext-*.md` (101–500).
+Planned: once 001–500 land, the root package splits into category sub-packages (TASKS T22). Until then everything stays in the root package.
 
 ## Stack
 

TASKS.md

@@ -43,4 +43,5 @@ Ordered by PRD sections. Check an item only after its codex review passes. Revie
 - [ ] T19 §8 Docs: install, minimal example, theme, compat; 100 component pages; examples compile
 - [ ] T20 §9 Snapshots, density baselines, large-data and lifecycle tests
 - [ ] T21 §9 CI workflow
-- [ ] T22 §10 Acceptance checklist
+- [ ] T22 §6.3 Split into category sub-packages after 001–500 land (user decision 2026-10-05); update PRD §6.3, docs, Gallery, CI
+- [ ] T23 §10 Acceptance checklist