diff --git a/CLAUDE.md b/CLAUDE.md
index 1062cd6..1af4e45 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -92,14 +92,15 @@ Do NOT modify web-base files — they are shared across all projects.
 
 ## Critical Rules
 
-1. Only edit `index-base.tpl` in modules — `index.tpl`, `index-twig.tpl`, and `builder.json` are auto-generated
-2. Use Twig **filters** (with `|`), never Twig functions
-3. Table names without `cms_` prefix everywhere
-4. Primary key is `num`, never `id`
-5. Upload fields are arrays — access with `[0].urlPath`
-6. Tailwind CSS as primary styling, custom CSS scoped with BEM when needed
-7. Twig concatenation uses `~` operator: `'value=' ~ variable`
-8. `enlace` (link) fields already include slashes
+1. **Before working with any area (hooks, modules, templates, CSS/JS, etc.), read the corresponding documentation in `docs/` first.** Do not guess or assume — always consult the docs before taking action.
+2. Only edit `index-base.tpl` in modules — `index.tpl`, `index-twig.tpl`, and `builder.json` are auto-generated
+3. Use Twig **filters** (with `|`), never Twig functions
+4. Table names without `cms_` prefix everywhere
+5. Primary key is `num`, never `id`
+6. Upload fields are arrays — access with `[0].urlPath`
+7. Tailwind CSS as primary styling, custom CSS scoped with BEM when needed
+8. Twig concatenation uses `~` operator: `'value=' ~ variable`
+9. `enlace` (link) fields already include slashes
 
 ## Documentation