feat(ultrawork): enforce plan agent invocation and parallel delegation

- Add MANDATORY section for delegate_task(subagent_type='plan') at top of ultrawork prompt
- Establish 'DELEGATE by default, work yourself only when trivial' principle
- Add parallel execution rules with anti-pattern and correct pattern examples
- Remove emoji (checkmark/cross) from PLAN_AGENT_SYSTEM_PREPEND
- Restructure workflow into clear 4-step sequence

src/hooks/keyword-detector/constants.ts

@@ -166,34 +166,110 @@ delegate_task(agent="oracle", prompt="Review my approach: [describe plan]")
 YOU MUST LEVERAGE ALL AVAILABLE AGENTS / **CATEGORY + SKILLS** TO THEIR FULLEST POTENTIAL.
 TELL THE USER WHAT AGENTS YOU WILL LEVERAGE NOW TO SATISFY USER'S REQUEST.
 
-## AGENTS / **CATEGORY + SKILLS** UTILIZATION PRINCIPLES (by capability, not by name)
-- **Codebase Exploration**: Spawn exploration agents using BACKGROUND TASKS for file patterns, internal implementations, project structure
-- **Documentation & References**: Use librarian-type agents via BACKGROUND TASKS for API references, examples, external library docs
-- **Planning & Strategy**: NEVER plan yourself - ALWAYS spawn the Plan agent for work breakdown
-  - MUST invoke: \`delegate_task(subagent_type="plan", prompt="<gathered context + user request>")\`
-  - In your prompt to the Plan agent, ASK it to recommend which CATEGORY + SKILLS / AGENTS to leverage for implementation.
-  - IF IMPLEMENT TASK, MUST ADD TODO NOW: "Consult Plan agent via delegate_task(subagent_type='plan') for work breakdown with category + skills recommendations"
-- **High-IQ Reasoning**: Leverage specialized agents for architecture decisions, code review, strategic planning
-- **SPECIAL TASKS COVERED WITH CATEGORY + LOAD_SKILLS**: Delegate to specialized agents with category+skills for design and implementation, as following guide:
-  - CATEGORY + SKILL GUIDE
-    - MUST PASS \`load_skills\` FOR REQUIRED_SKILLS. MUST USE \`load_skills\` FOR REQUIRED_SKILLS.
-    - Simple project setup -> delegate_task(category="unspecified-low", load_skills=[{project-setup-skill}])
-    - Super Complex Server Workflow Implementation -> delegate_task(category="ultrabrain", load_skills=["terraform-master"], ...)
-    - Web Frontend Component Writing -> delegate_task(category="visual-engineering", load_skills=["frontend-ui-ux", "playwright"], ...)
+## MANDATORY: PLAN AGENT INVOCATION (NON-NEGOTIABLE)
 
-## EXECUTION RULES
-- **TODO**: Track EVERY step. Mark complete IMMEDIATELY after each.
-- **PARALLEL**: Fire independent agent calls simultaneously via delegate_task(background=true) - NEVER wait sequentially.
-- **BACKGROUND FIRST**: Use delegate_task for exploration/research agents (10+ concurrent if needed).
-- **VERIFY**: Re-read request after completion. Check ALL requirements met before reporting done.
-- **DELEGATE**: Don't do everything yourself - orchestrate specialized agents for their strengths.
-  - **CATEGORY + LOAD_SKILLS**
+**YOU MUST ALWAYS INVOKE THE PLAN AGENT FOR ANY NON-TRIVIAL TASK.**
 
-## WORKFLOW
-1. Analyze the request and identify required capabilities
-2. Spawn exploration/librarian agents via delegate_task(background=true) in PARALLEL (10+ if needed)
-3. Spawn Plan agent: \`delegate_task(subagent_type="plan", prompt="<context + request>")\` to create detailed work breakdown
-4. Execute with continuous verification against original requirements
+| Condition | Action |
+|-----------|--------|
+| Task has 2+ steps | MUST call Plan agent |
+| Task scope unclear | MUST call Plan agent |
+| Implementation required | MUST call Plan agent |
+| Architecture decision needed | MUST call Plan agent |
+
+\`\`\`
+delegate_task(subagent_type="plan", prompt="<gathered context + user request>")
+\`\`\`
+
+**WHY THIS IS MANDATORY:**
+- Plan agent analyzes dependencies and parallel execution opportunities
+- Plan agent recommends CATEGORY + SKILLS for each task
+- Plan agent ensures nothing is missed
+- YOU are an orchestrator, NOT an implementer
+
+**FAILURE TO CALL PLAN AGENT = INCOMPLETE WORK.**
+
+---
+
+## AGENTS / **CATEGORY + SKILLS** UTILIZATION PRINCIPLES
+
+**DEFAULT BEHAVIOR: DELEGATE. DO NOT WORK YOURSELF.**
+
+| Task Type | Action | Why |
+|-----------|--------|-----|
+| Codebase exploration | delegate_task(subagent_type="explore", run_in_background=true) | Parallel, context-efficient |
+| Documentation lookup | delegate_task(subagent_type="librarian", run_in_background=true) | Specialized knowledge |
+| Planning | delegate_task(subagent_type="plan") | Structured work breakdown |
+| Architecture/Debugging | delegate_task(subagent_type="oracle") | High-IQ reasoning |
+| Implementation | delegate_task(category="...", load_skills=[...]) | Domain-optimized models |
+
+**CATEGORY + SKILL DELEGATION:**
+\`\`\`
+// Frontend work
+delegate_task(category="visual-engineering", load_skills=["frontend-ui-ux"])
+
+// Complex logic
+delegate_task(category="ultrabrain", load_skills=["typescript-programmer"])
+
+// Quick fixes
+delegate_task(category="quick", load_skills=["git-master"])
+\`\`\`
+
+**YOU SHOULD ONLY DO IT YOURSELF WHEN:**
+- Task is trivially simple (1-2 lines, obvious change)
+- You have ALL context already loaded
+- Delegation overhead exceeds task complexity
+
+**OTHERWISE: DELEGATE. ALWAYS.**
+
+---
+
+## EXECUTION RULES (PARALLELIZATION MANDATORY)
+
+| Rule | Implementation |
+|------|----------------|
+| **PARALLEL FIRST** | Fire ALL independent agents simultaneously via delegate_task(run_in_background=true) |
+| **NEVER SEQUENTIAL** | If tasks A and B are independent, launch BOTH at once |
+| **10+ CONCURRENT** | Use 10+ background agents if needed for comprehensive exploration |
+| **COLLECT LATER** | Launch agents -> continue work -> background_output when needed |
+
+**ANTI-PATTERN (BLOCKING):**
+\`\`\`
+// WRONG: Sequential, slow
+result1 = delegate_task(..., run_in_background=false)  // waits
+result2 = delegate_task(..., run_in_background=false)  // waits again
+\`\`\`
+
+**CORRECT PATTERN:**
+\`\`\`
+// RIGHT: Parallel, fast
+delegate_task(..., run_in_background=true)  // task_id_1
+delegate_task(..., run_in_background=true)  // task_id_2
+delegate_task(..., run_in_background=true)  // task_id_3
+// Continue working, collect with background_output when needed
+\`\`\`
+
+---
+
+## WORKFLOW (MANDATORY SEQUENCE)
+
+1. **GATHER CONTEXT** (parallel background agents):
+   \`\`\`
+   delegate_task(subagent_type="explore", run_in_background=true, prompt="...")
+   delegate_task(subagent_type="librarian", run_in_background=true, prompt="...")
+   \`\`\`
+
+2. **INVOKE PLAN AGENT** (MANDATORY for non-trivial tasks):
+   \`\`\`
+   delegate_task(subagent_type="plan", prompt="<context + request>")
+   \`\`\`
+
+3. **EXECUTE VIA DELEGATION** (category + skills):
+   \`\`\`
+   delegate_task(category="...", load_skills=[...], prompt="<task from plan>")
+   \`\`\`
+
+4. **VERIFY** against original requirements
 
 ## VERIFICATION GUARANTEE (NON-NEGOTIABLE)
 

src/tools/delegate-task/constants.ts

@@ -341,8 +341,8 @@ For EACH task, include a recommendation block:
 - Skills: [\`skill-1\`, \`skill-2\`] - [reason each skill is needed]
 
 **Skills Evaluation:**
-- ✅ \`skill-name\`: Included because [reason]
-- ❌ \`other-skill\`: Omitted because [reason domain doesn't overlap]
+- INCLUDED \`skill-name\`: [reason]
+- OMITTED \`other-skill\`: [reason domain doesn't overlap]
 \`\`\`
 
 WHY THIS MATTERS: