cheat

Cheat — cht.sh cheatsheet lookup

A self-contained reimplementation of the tmux + cht.sh + fzf cheatsheet tool. The cht script (next to this file) is the whole tool; this document is how to use it and how to wire the optional tmux popup keybind.

When the user asks for a cheatsheet

Run cht in direct mode and show the result — do not guess the syntax from recall when a ground-truth lookup is one call away (machine law: ground truth over recall).

• Language idiom: cht <lang> <query...> → cht python reverse a list
• Command usage: cht <command> <query...> → cht tar extract gz
• Bare topic: cht awk (returns the tool's top cheatsheet)

The script picks the right cht.sh route automatically: known programming languages use host/<lang>/<query>, everything else is treated as a command and uses host/<command>~<query>. Output is fetched with ?qT (quiet, no color codes) so it captures cleanly into context.

Quote the returned snippet back to the user; add a one-line note only if the result needs caveats (deprecated flag, version-specific, platform difference).

Interactive mode (the user's terminal)

With no arguments, cht runs the video's flow: an fzf picker over a curated list of languages and CLI tools, then a query: prompt, then the paged result.

cht

Optional: the tmux popup keybind

For the one-keystroke experience from the video, add a binding to ~/.tmux.conf that opens cht in a tmux popup (modern tmux) or a new window (older tmux). Point it at wherever the user installs the script — e.g. a symlink on PATH:

ln -s "$PWD/.claude/skills/cheat/cht" ~/.local/bin/cht

~/.tmux.conf (popup, tmux >= 3.2):

bind-key -r i display-popup -E -w 80% -h 80% "cht"

~/.tmux.conf (new window, older tmux):

bind-key -r i run-shell "tmux neww cht"

Reload with tmux source-file ~/.tmux.conf. Then prefix + i opens the picker.

Dependencies

• curl — required (the lookup)
• fzf — required only for interactive mode
• tmux — only for the keybind
• A pager (less) — interactive output; override with CHT_PAGER=cat

Configuration

• CHT_HOST — alternate cht.sh host or a self-hosted instance (default cht.sh)
• CHT_PAGER — pager for interactive results (default less -R)

Notes

• cht.sh is a shared free service and occasionally returns 500s under load — retry, or self-host and set CHT_HOST.
• Add or trim the languages / utils lists in cht to match the stack the user actually works in.