fix(skills): trim 22 descriptions back under the listing budget

The skill listing stood at 1498 of 1500 words; the trimmed descriptions bring it to 1420, so the new kvb-check-ansible description fits without pushing others out.

🎯 Fix: 95 %
💥 Break: 1 %
💸 Cost: 99 %
⏱️ Time: 100 %
🛡️ Security: 100 %
🏆 Score: 95
🚦 Gate: ✅ 90/5, cost and time <= 100, security 100 %

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

skills/kvb-think-explain/SKILL.md

@@ -1,8 +1,8 @@
 ---
 name: kvb-think-explain
 description: >
-  Explain code and its interactions. Trigger when the operator asks what code
-  does, how a mechanism works or why components interact.
+  Explain on request what code does, how a mechanism works or why
+  components interact.
 ---
 
 Explain the named code so an engineer who has never seen it can follow it: