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name: router description: Intelligent model selection for cost optimization. Routes tasks to Haiku (cheap/fast), Sonnet (balanced), or Opus (powerful) based on complexity. USE WHEN starting a session to enable automatic cost-optimized routing for all Task calls.

Router Skill - Intelligent Model Selection

Version: 1.0.0 Purpose: Automatically route tasks to optimal Claude model tier (Haiku/Sonnet/Opus) Activation: Type /router to activate

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Core Directive

When this skill is active, you MUST apply these routing rules for ALL Task tool calls.

Always specify the model parameter based on task classification below.

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Routing Rules

→ HAIKU (model="haiku")

Cost: $0.25/MTok input | Speed: ⚡⚡⚡ Fastest

Use for: Simple, deterministic tasks requiring minimal reasoning

Route to Haiku:

• ✓ File operations (search, list, read)
• ✓ Code/document search (grep, glob)
• ✓ Simple Q&A, status checks
• ✓ Git commands
• ✓ Citation formatting
• ✓ Basic bash operations

Examples:

• "Find all contract templates"
• "Search for cases citing Brown v. Board"
• "List files modified this week"
• "Format this citation in Bluebook"

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→ SONNET (model="sonnet")

Cost: $3/MTok input | Speed: ⚡⚡ Moderate

Use for: Standard legal work requiring analysis and drafting

Route to Sonnet:

• ✓ Legal drafting (motions, contracts, briefs)
• ✓ Case law analysis and research
• ✓ Document review
• ✓ Discovery responses
• ✓ Client correspondence
• ✓ Risk assessment (routine)

Examples:

• "Draft motion to compel discovery"
• "Analyze this contract for liability"
• "Research summary judgment standards"
• "Prepare interrogatory responses"

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→ OPUS (model="opus")

Cost: $15/MTok input | Speed: ⚡ Powerful

Use for: Complex reasoning, novel issues, strategic planning

Route to Opus:

• ✓ Strategic litigation planning
• ✓ Novel legal issues (first impression)
• ✓ Multi-party negotiations
• ✓ Conflicting precedents
• ✓ High-stakes decisions
• ✓ Blades Overseer coordination

Examples:

• "Develop settlement strategy for 12-party case"
• "Analyze novel First Amendment question"
• "Synthesize conflicting circuit precedents"
• "Strategic analysis: remove to federal court?"

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Special Rules

Multi-Step Tasks

Break into sub-tasks when possible:

Task: "Research FRCP 26 and draft discovery plan"
→ Step 1: Search FRCP 26 (Haiku)
→ Step 2: Draft plan (Sonnet)

User Override

Users can force specific models:

• [HAIKU] your request - Force Haiku
• [SONNET] your request - Force Sonnet
• [OPUS] your request - Force Opus

Uncertainty Default

If uncertain: Default to SONNET (balanced)

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Decision Tree

Is it a simple lookup/search?
├─ YES → HAIKU
└─ NO → ↓

Is it routine legal work (drafting/analysis)?
├─ YES → SONNET
└─ NO → ↓

Is it complex/novel/high-stakes?
├─ YES → OPUS
└─ UNCERTAIN → SONNET

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Skills Integration

When Blades Active:

• Overseer: OPUS
• Workers: SONNET
• Searches: HAIKU

When Research Active:

• Initial search: HAIKU
• Analysis: SONNET
• Complex synthesis: OPUS

When Fabric Active:

• Simple patterns: HAIKU
• Moderate patterns: SONNET
• Complex patterns: OPUS

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Transparency

When routing, briefly state your decision:

User: "Find discovery deadlines"
You: "I'll use Haiku for this file search."
[Execute with model="haiku"]

User: "Research and draft motion"
You: "I'll use Haiku for research, Sonnet for drafting."
[Execute both]

Do NOT ask permission - just route intelligently.

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Cost Impact

Before Router:

• 50 tasks/day on Sonnet
• Daily cost: ~$1.20

With Router:

• 40 tasks on Haiku: $0.008
• 8 tasks on Sonnet: $0.192
• 2 tasks on Opus: $0.240
• Daily cost: ~$0.44 (63% savings)

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Status Confirmation

When activated, confirm:

✓ Router v1.0.0 active
✓ All Task calls will be routed to optimal models
✓ Using Haiku/Sonnet/Opus based on complexity

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Deactivation

To deactivate:

• User says: "Deactivate router"
• Or: Start new session (skills don't persist)

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Router v1.0.0 | Optimized for legal practice | 60-80% cost reduction