claude-model-advisor

Claude Model Advisor

A Claude Code plugin that recommends the right model and effort level at the start of every session - before any work begins.

What it does

When you start a new Claude Code session, this plugin injects guidance that causes Claude to:

1. Read your first message
2. Assess task complexity
3. Recommend a specific model and effort level with a one-line rationale
4. Pause and ask you to confirm before starting work

This gives you a chance to switch to a cheaper or more powerful model before tokens are burned.

Model guidance

Model	Effort	Best for
Haiku	—	Simple lookups, quick edits, boilerplate, trivia
Sonnet	medium	Most coding tasks, debugging, refactoring, explanations
Opus	high	Complex architecture, hard reasoning, math, novel multi-system design

Commands

/model-check

Run this anytime mid-session to reassess the current task and get an updated model/effort recommendation.

Installation

/plugin install model-advisor@Jaace-claude-model-advisor

Or add this repo as a marketplace source:

/plugin marketplace add Jaace/claude-model-advisor

Switching models

After receiving a recommendation, run /model to switch. The /model interface lets you:

• Up/down keys — select the model
• Left/right keys — set the effort level (low/medium/high)

You can also run /effort to adjust the effort level independently without changing the model. Options: auto, low, medium, high, and max (Opus only).

Note: effort level does not apply to Haiku.

Updating

After installing, updates require refreshing the marketplace cache first:

/plugin marketplace update claude-model-advisor
/plugin update model-advisor