Context

The context window is finite. Everything the AI knows about your conversation has to fit inside it.

What’s in the Context Window?

• System prompt
• Tools (file ops, terminal, LSP, search)
• MCP servers you’ve connected
• Skills loaded on startup
• Conversation history (messages, tool calls, results)

Why This Matters

As context fills up, signal competes with noise. Important details get buried. See context collapse.

Context from one domain can also contaminate another. See context contamination.