fix(tool-use): add question tool schema with mandatory description field

.kilo/skills/tool-use/SKILL.md

@@ -39,6 +39,43 @@ Based on Anthropic's "Prompt Engineering your Tools" appendix.
 - `codebase_search`: Semantic search
 - `question`: Ask user for clarification
 
+## Question Tool Schema
+
+When using the `question` tool, each **option** MUST include the required `description` field.
+
+```json
+{
+  "questions": [{
+    "question": "Select the next action",
+    "options": [
+      {
+        "id": "deploy",
+        "label": "Deploy to production",
+        "description": "Run the full CI/CD pipeline and deploy.",
+        "icon": "Rocket",
+        "default": true
+      },
+      {
+        "id": "test",
+        "label": "Run tests first",
+        "description": "Execute the test suite before deploying.",
+        "icon": "TestTube"
+      }
+    ]
+  }]
+}
+```
+
+**Required fields per option:**
+- `id` — unique identifier for the option.
+- `label` — short display text.
+- `description` — **MANDATORY** detailed explanation of what happens when this option is selected.
+- `icon` (optional) — visual icon name.
+- `default` (optional) — pre-select this option.
+
+**Common Error:**
+`SchemaError(Missing key at ["options"][0]["description"])` — ensure every option object contains a non-empty `description`.
+
 ## Tool Documentation
 
 From Anthropic research: Invest as much effort in ACI (Agent-Computer Interface) as HCI: