state-management

State Management Skill

Optimizing token efficiency and state management in xc-plugin

Overview

The xc-plugin implements sophisticated state management through caching, progressive disclosure, and configuration management. This Skill teaches how to leverage these patterns to minimize token usage, improve performance, and maintain clean state across operations.

Key Benefits:

• 85-90% token reduction through progressive disclosure
• Cache-friendly operations avoid redundant work
• Deterministic state ensures reliable test results
• Configuration consistency across development workflows

When to Use This Skill

Use this Skill when you need to:

1. Optimize Token Usage

   • Working with large device lists or build logs
   • Reducing context window consumption
   • Implementing efficient query patterns

2. Manage Cache State

   • Understanding when responses are cached
   • Invalidating stale cache entries
   • Querying cached data efficiently

3. Handle Configuration

   • Setting up consistent build environments
   • Managing simulator preferences
   • Configuring test execution parameters

4. Design Efficient Workflows

   • Implementing progressive disclosure patterns
   • Avoiding expensive repeated operations
   • Building cache-aware automation

Key Concepts

Progressive Disclosure Pattern

Principle: Show essentials first, provide details on-demand.

Instead of returning massive datasets that consume tokens, xc-plugin returns:

1. Summary - Key metrics and booted devices (~100 tokens)
2. cache_id - Reference to full dataset
3. Follow-up query - Retrieve complete details only if needed

Token Efficiency:

Traditional approach: 2000 tokens (full device list)
Progressive disclosure: 100 tokens (summary) + optional 2000 tokens (details)
Average savings: 95% (most queries don't need full details)

Cache Architecture

The plugin uses deterministic caching for expensive operations:

Cache Key Generation:

• SHA-256 hash of operation + parameters
• First 16 characters used as cache_id
• Deterministic: Same input → Same cache_id