opus

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name: smart-model-switching description: >- Auto-route tasks to the cheapest Claude model that works correctly. Three-tier progression: Haiku → Sonnet → Opus. Classify before responding. HAIKU (default): factual Q&A, greetings, reminders, status checks, lookups, simple file ops, heartbeats, casual chat, 1-2 sentence tasks. ESCALATE TO SONNET: code >10 lines, analysis, comparisons, planning, reports, multi-step reasoning, tables, long writing >3 paragraphs, summarization, research synthesis, most user conversations. ESCALATE TO OPUS: architecture decisions, complex debugging, multi-file refactoring, strategic planning, nuanced judgment, deep research, critical production decisions. Rule: If a human needs >30 seconds of focused thinking, escalate. If Sonnet struggles with complexity, go to Opus. Save 50-90% on API costs by starting cheap and escalating only when needed. author: "OpenClaw Community" version: 1.0.0 homepage: https://clawhub.com metadata: openclaw: emoji: "💰"

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Smart Model Switching

Three-tier Claude routing: Haiku → Sonnet → Opus

Start with the cheapest model. Escalate only when needed. Save 50-90% on API costs.

The Golden Rule

> If a human would need more than 30 seconds of focused thinking, escalate from Haiku to Sonnet. > If the task involves architecture, complex tradeoffs, or deep reasoning, escalate to Opus.

Cost Reality

| Model | Input | Output | Relative Cost | |-------|-------|--------|---------------| | Haiku | \$0.25/M | \$1.25/M | 1x (baseline) | | Sonnet | \$3.00/M | \$15.00/M | 12x | | Opus | \$15.00/M | \$75.00/M | 60x |

Bottom line: Wrong model selection wastes money OR time. Haiku for simple, Sonnet for standard, Opus for complex.

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💚 HAIKU — Default for Simple Tasks

Stay on Haiku for:

Factual Q&A — "what is X", "who is Y", "when did Z"

Quick lookups — definitions, unit conversions, short translations

Status checks — calendar, file reads, session monitoring

Heartbeats — periodic checks, HEARTBEAT_OK responses

Memory & reminders — "remember this", "remind me to..."

Casual conversation — greetings, small talk, acknowledgments

Simple file ops — read, list, basic writes

One-liner tasks — anything answerable in 1-2 sentences

NEVER do these on Haiku

❌ Write code longer than 10 lines

❌ Create comparison tables

❌ Write more than 3 paragraphs

❌ Do multi-step analysis

❌ Write reports or proposals

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💛 SONNET — Standard Work (The Workhorse)

Escalate to Sonnet for:

Code & Technical

Code generation — write functions, build features, scripts

Code review — PR reviews, quality checks

Debugging — standard bug investigation

Documentation — README, comments, user guides

Analysis & Planning

Analysis & evaluation — compare options, assess trade-offs

Planning — project plans, roadmaps, task breakdowns

Research synthesis — combining multiple sources

Multi-step reasoning — "first... then... finally"

Writing & Content

Long-form writing — reports, proposals, articles (>3 paragraphs)

Creative writing — blog posts, descriptions, copy

Summarization — long documents, transcripts

Structured output — tables, outlines, formatted docs

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❤️ OPUS — Complex Reasoning Only

Escalate to Opus for:

Architecture & Design

System architecture decisions

Major codebase refactoring

Design pattern selection with tradeoffs

Database schema design

Deep Analysis

Complex debugging (multi-file, race conditions)

Security reviews

Performance optimization strategy

Root cause analysis of subtle bugs

Strategic & Creative

Strategic planning — business decisions, roadmaps

Nuanced judgment — ethics, ambiguity, competing values

Deep research — comprehensive multi-source analysis

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🔄 Implementation

For Subagents

\\\javascript // Routine monitoring sessions_spawn(task="Check backup status", model="haiku")

// Standard code work sessions_spawn(task="Build the REST API endpoint", model="sonnet")

// Architecture decisions sessions_spawn(task="Design the database schema for multi-tenancy", model="opus") \\\

For Cron Jobs

\\\json { "payload": { "kind": "agentTurn", "model": "haiku" } } \\\ Always use Haiku for cron unless the task genuinely needs reasoning.

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📊 Quick Decision Tree

\\\ Is it a greeting, lookup, status check, or 1-2 sentence answer? YES → HAIKU NO ↓

Is it code, analysis, planning, writing, or multi-step? YES → SONNET NO ↓

Is it architecture, deep reasoning, or critical decision? YES → OPUS NO → Default to SONNET, escalate if struggling \\\

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📋 Quick Reference Card

\\\ ┌─────────────────────────────────────────────────────────────┐ │ SMART MODEL SWITCHING │ │ Haiku → Sonnet → Opus │ ├─────────────────────────────────────────────────────────────┤ │ 💚 HAIKU (cheapest) │ │ • Greetings, status checks, quick lookups │ │ • Factual Q&A, definitions, reminders │ │ • Simple file ops, 1-2 sentence answers │ ├─────────────────────────────────────────────────────────────┤ │ 💛 SONNET (standard) │ │ • Code > 10 lines, debugging │ │ • Analysis, comparisons, planning │ │ • Reports, proposals, long writing │ ├─────────────────────────────────────────────────────────────┤ │ ❤️ OPUS (complex) │ │ • Architecture decisions │ │ • Complex debugging, multi-file refactoring │ │ • Strategic planning, deep research │ ├─────────────────────────────────────────────────────────────┤ │ 💡 RULE: If a human needs > 30 sec thinking → escalate │ │ 💰 COST: Haiku 1x → Sonnet 12x → Opus 60x │ └─────────────────────────────────────────────────────────────┘ \\\

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*Built for Claude-only setups with Haiku, Sonnet, and Opus.* *Inspired by save-money skill, extended with three-tier progression.*