Let me analyze this task step by step to determine the optimal configuration:

1. **Task Type Identification**
   "What type of work is being requested?"
   - Code implementation / feature development
   - Research / investigation / comparison
   - Documentation / technical writing
   - Code review / quality analysis
   - Architecture / system design
   - Testing / validation
   - Simple transformation / lookup

2. **Complexity Assessment**
   "How complex is the reasoning required?"
   - High: Architecture decisions, novel problem-solving, multi-faceted analysis
   - Medium: Standard implementation following patterns, moderate research
   - Low: Simple transformations, lookups, well-defined single-step tasks

3. **Output Size Estimation**
   "How extensive is the expected output?"
   - Large: Multiple files, comprehensive documentation, extensive analysis
   - Medium: Single feature, focused deliverable
   - Small: Quick answer, minor change, brief output

4. **Domain Expertise Check**
   "Does this task match a specialized agent profile?"
   - Development: code, implement, feature, endpoint, TDD, tests
   - Research: investigate, compare, evaluate, options, library
   - Documentation: document, README, guide, explain, tutorial
   - Architecture: design, system, structure, scalability
   - Exploration: understand, navigate, find, codebase patterns

Is task COMPLEX (architecture, design, novel problem, critical decision)?
|
+-- YES --> Use Opus (highest capability)
|           |
|           +-- Does it match a specialized domain?
|               +-- YES --> Include specialized agent prompt
|               +-- NO --> Use Opus alone
|
+-- NO --> Is task SIMPLE and SHORT?
           |
           +-- YES --> Use Haiku (fast, cheap)
           |
           +-- NO --> Is output LONG but task not complex?
                      |
                      +-- YES --> Use Sonnet (balanced)
                      |
                      +-- NO --> Use Opus (default)

## Reasoning Approach

Before taking any action, you MUST think through the problem systematically.

Let's approach this step by step:

1. "Let me first understand what is being asked..."
   - What is the core objective?
   - What are the explicit requirements?
   - What constraints must I respect?

2. "Let me break this down into concrete steps..."
   - What are the major components of this task?
   - What order should I tackle them?
   - What dependencies exist between steps?

3. "Let me consider what could go wrong..."
   - What assumptions am I making?
   - What edge cases might exist?
   - What could cause this to fail?

4. "Let me verify my approach before proceeding..."
   - Does my plan address all requirements?
   - Is there a simpler approach?
   - Am I following existing patterns?

Work through each step explicitly before implementing.

<task>
{Task description from $ARGUMENTS}
</task>

<constraints>
{Any constraints inferred from the task or conversation context}
</constraints>

<context>
{Relevant context: files, patterns, requirements, codebase information}
</context>

<output>
{Expected deliverable: format, location, structure}
</output>

## Self-Critique Loop (MANDATORY)

Before completing, you MUST verify your work. Submitting unverified work is UNACCEPTABLE.

### 1. Generate 5 Verification Questions

Create 5 questions specific to this task that test correctness and completeness. There example questions:

| # | Verification Question | Why This Matters |
|---|----------------------|------------------|
| 1 | Does my solution fully address ALL stated requirements? | Partial solutions = failed task |
| 2 | Have I verified every assumption against available evidence? | Unverified assumptions = potential failures |
| 3 | Are there edge cases or error scenarios I haven't handled? | Edge cases cause production issues |
| 4 | Does my solution follow existing patterns in the codebase? | Pattern violations create maintenance debt |
| 5 | Is my solution clear enough for someone else to understand and use? | Unclear output reduces value |

### 2. Answer Each Question with Evidence

For each question, examine your solution and provide specific evidence:

[Q1] Requirements Coverage:
- Requirement 1: [COVERED/MISSING] - [specific evidence from solution]
- Requirement 2: [COVERED/MISSING] - [specific evidence from solution]
- Gap analysis: [any gaps identified]

[Q2] Assumption Verification:
- Assumption 1: [assumption made] - [VERIFIED/UNVERIFIED] - [evidence]
- Assumption 2: [assumption made] - [VERIFIED/UNVERIFIED] - [evidence]

[Q3] Edge Case Analysis:
- Edge case 1: [scenario] - [HANDLED/UNHANDLED] - [how]
- Edge case 2: [scenario] - [HANDLED/UNHANDLED] - [how]

[Q4] Pattern Adherence:
- Pattern 1: [pattern name] - [FOLLOWED/DEVIATED] - [evidence]
- Pattern 2: [pattern name] - [FOLLOWED/DEVIATED] - [evidence]

[Q5] Clarity Assessment:
- Is the solution well-organized? [YES/NO]
- Are complex parts explained? [YES/NO]
- Could someone else use this immediately? [YES/NO]

### 3. Revise If Needed

If ANY verification question reveals a gap:
1. **STOP** - Do not submit incomplete work
2. **FIX** - Address the specific gap identified
3. **RE-VERIFY** - Confirm the fix resolves the issue
4. **DOCUMENT** - Note what was changed and why

CRITICAL: Do not submit until ALL verification questions have satisfactory answers with evidence.

Use Task tool:
- description: "Sub-agent: {brief task summary}"
- prompt: {constructed prompt with CoT prefix + task + critique suffix}
- model: {selected model - opus/sonnet/haiku}