conductor-rewrite-performance

• SKILL.mdcore · 9,145 bytes
• SKILL.mdcore · 9,145 bytes

## When to use this skill

- You're building a local-first desktop application with React and experiencing performance bottlenecks
- Navigation or route changes trigger cascading re-renders across multiple mounted components
- You have a chat interface or long list that streams content and re-renders become sluggish
- You're using Tauri and need to profile React performance but can't access Chrome DevTools
- Multiple heavy views are mounted simultaneously (sidebar, nav, chat, terminal, editor) and all re-render on state changes
- You need to manage multiple heavyweight child processes without exhausting system memory

## Core principles

1. **Local-first eliminates an entire category of performance problems.** When SQLite is your source of truth and the UI never waits on the network, the bottleneck moves up into the rendering layer—every unnecessary re-render becomes the slowest thing users feel.

2. **Unstable references cascade re-renders through the entire component tree.** When router hooks return fresh objects on every render, every component reading them re-renders even when values haven't changed, and those re-renders propagate to all children.