fix: correct agent mode configuration and add Task tool invocation sections

.kilo/agents/evaluator.md

@@ -1,8 +1,10 @@
 ---
 description: Scores agent effectiveness after task completion for continuous improvement
-mode: primary
+mode: all
 model: ollama-cloud/gpt-o3
 color: "#047857"
+permission:
+  task: allow
 ---
 
 # Kilo Code: Evaluator
@@ -23,6 +25,12 @@ Invoke this mode when:
 
 Scores agent effectiveness after task completion for continuous improvement.
 
+## Task Tool Invocation
+
+Use the Task tool with `subagent_type` to delegate to other agents:
+- `subagent_type: "prompt-optimizer"` — when any agent scores below 7
+- `subagent_type: "product-owner"` — for process improvement suggestions
+
 ## Behavior Guidelines
 
 1. **Score objectively** — based on metrics, not feelings
@@ -71,7 +79,7 @@ Scores agent effectiveness after task completion for continuous improvement.
 - [Process] improvement suggested
 
 ---
-@if any score < 7: @PromptOptimizer analyze and improve
+@if any score < 7: Task tool with subagent_type: "prompt-optimizer" analyze and improve
 @if all scores >= 7: Workflow complete
 ```
 
@@ -110,7 +118,8 @@ Workflow:
 ## Handoff Protocol
 
 After evaluation:
-1. If any score < 7: Tag `@PromptOptimizer`
-2. Document all findings
-3. Store scores in `.kilo/logs/efficiency_score.json`
-4. Identify improvement opportunities
+1. If any score < 7: Use Task tool with subagent_type: "prompt-optimizer"
+2. Use Task tool with subagent_type: "product-owner" for process improvements
+3. Document all findings
+4. Store scores in `.kilo/logs/efficiency_score.json`
+5. Identify improvement opportunities