
guide
Prompt Caching for Agentic Loops: Stop Paying Full Price for the Same Tokens
Cut 60-85% of your agentic loop costs with Anthropic's prompt caching. Especially after Opus 4.7 made everything 35% pricier.

guide
Claude Extended Thinking: The 3-Line Config Between Shallow Answers and $50 Bills
Set up Claude's adaptive thinking API correctly on Opus 4.7 — effort levels, streaming, cost traps, and the silent billing gotcha.