5 guides
Claude Fable 5.2 costs $8/$40 per million tokens and is now Claude Code's default Fable model. What Anthropic measured, and when Opus 5.5 still fits better.
Internal OpenAI and Anthropic models each claim a Lean-formalized subexponential 3-SAT algorithm that refutes ETH. What was claimed and what is unverified.
Claude Skills, Claude Code, and Projects get confused constantly. What each one is, where they overlap, and which to use for repeatable work versus coding.
A plain-English guide to the Model Context Protocol (MCP): the client/server model, tools vs resources vs prompts, transports, and why it matters for Claude Code.
Add MCP servers to Claude Code on Windows and WSL: claude mcp add, scopes, .mcp.json, verifying with /mcp, and the Windows cmd /c npx wrapper gotcha explained.