context-budgeting
Installation
SKILL.md
Context Budget Mastery
Master the art of managing Claude Code's context window for maximum productivity.
Goal
Help users understand exactly where context is consumed, plan sessions that avoid hitting limits, and recover gracefully when context gets tight.
Context Window Sizes
| Model | Context Window | Practical Limit |
|---|---|---|
| Opus 4.6 | 200,000 tokens | ~180,000 usable |
| Sonnet 4.6 | 200,000 tokens | ~180,000 usable |
| Haiku 4.5 | 200,000 tokens | ~180,000 usable |
The ~20k overhead comes from system prompt, tool definitions, and framework messages that are always present.