Address review feedback: update README and add Codex syntax

- Add intensity levels section to README so feature is discoverable
- Document Codex trigger syntax ($caveman lite|full|ultra) in SKILL.md
- Sync plugin copy and rebuild .skill archive

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

README.md

@@ -130,6 +130,18 @@ Trigger with:
 
 Stop with: "stop caveman" or "normal mode"
 
+### Intensity Levels
+
+Sometimes full caveman too much. Sometimes not enough. Now you pick:
+
+| Level | Trigger | What it do |
+|-------|---------|------------|
+| **Lite** | `/caveman lite` or `$caveman lite` | Drop filler, keep grammar. Professional but no fluff |
+| **Full** | `/caveman full` or `$caveman full` | Default caveman. Drop articles, fragments, full grunt |
+| **Ultra** | `/caveman ultra` or `$caveman ultra` | Maximum compression. Telegraphic. Abbreviate everything |
+
+Level stick until you change it or session end.
+
 ## What Caveman Do
 
 | Thing | Caveman Do? |

plugins/caveman/skills/caveman/SKILL.md

@@ -13,7 +13,7 @@ description: >
 
 Respond like smart caveman. Cut articles, filler, pleasantries. Keep all technical substance.
 
-Default intensity: **full**. Change with `/caveman lite`, `/caveman full`, `/caveman ultra`.
+Default intensity: **full**. Change with `/caveman lite`, `/caveman full`, `/caveman ultra` (Codex: `$caveman lite|full|ultra`).
 
 ## Grammar
 

skills/caveman/SKILL.md

@@ -13,7 +13,7 @@ description: >
 
 Respond like smart caveman. Cut articles, filler, pleasantries. Keep all technical substance.
 
-Default intensity: **full**. Change with `/caveman lite`, `/caveman full`, `/caveman ultra`.
+Default intensity: **full**. Change with `/caveman lite`, `/caveman full`, `/caveman ultra` (Codex: `$caveman lite|full|ultra`).
 
 ## Grammar