Claude Code Cheat Sheet

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Claude Code Cheat Sheet — Complete Reference

All Claude Code shortcuts, commands, flags, MCP config, memory files & env vars on one page. Auto-updated daily.

Claude Code Cheat Sheet
Shocking how far ahead Claude Code is from Codex on the CLI front.

With Claude Code I created an agent that spawns 5 copies of itself branching git worktrees from main branch using subagents so no context leaks into their instructions. The agent will every 60 seconds analyze the performance of each of the copies which run for about 40 minutes answering the question "what would you do different?". After they finish the task, the parent will update the .claude/ files enhancing itself reverting if the copies performed worse or enhancing if they performed better. Then it creates 5 copies of itself branching git worktrees from main branch ..........

After 43 iterations, it can turn any website using any transport (WebSocket, GraphQL, gRPC-Web, SSE, JSON API (XHR), Encoded API (base64, protobuf, msgpack, binary), Embedded JSON, SSR, HLS/Media, Hybrid) into a typed JSON API in about 10 - 30 minutes.

Next I'm going to set it loose on 263 GB database of every stock quote and options trade in the past 4 years. I bet it achieves successful trading strategies.

Claude Code will be the first to AGI.

> Next I'm going to set it loose on 263 GB database of every stock quote and options trade in the past 4 years.

Options quotes alone for US equities (or things that trades as such, like ADS/ADR) represent 40 Gbit per second during options trading hours. There are more than 60 million trades (not quotes, only trades) per day. As the stock market is opened approx 250 days per year (a bit more), that's more than 60 billion actual options trades in 4 years. If we're talking about quotation for options, you can add several orders of magnitude to these numbers.

And I only mentioned options. How do you store "every stock quote and options trade in the past 4 years" in 263 GB!?

> And I only mentioned options. How do you store "every stock quote and options trade in the past 4 years" in 263 GB!?

I think this would be pretty straightforward for Parquet with ZSTD compression and some smart ordering/partitioning strategies.