Straitjacket
A secret scanner, but for slop.
Straitjacket is a fast, deterministic scanner that flags the weird code and text LLMs produce. It sweeps your files against a set of snobby-but-configurable rules and flags anything it finds — one static Rust binary, no runtime, so it drops into any repo's CI regardless of language or stack.
curl -fsSL https://raw.githubusercontent.com/PowderworksCode/straitjacket/main/install.sh | shOr build from source with cargo install straitjacket.
What it catches
Everything is on by default — Straitjacket runs at its max, and you ratchet down with --skip. Each rule only looks at the file types where it makes sense. The one exception is no-comments, a mode you opt into.
Emoji & AI tells
Emoji glyphs in code, comments, strings, and Markdown — one of the most reliable giveaways that a machine wrote it.
Hardcoded colors
Raw hex and CSS color functions (rgb, hsl, oklch, …) that should be a theme token, not sprinkled inline.
Oversized files
The 1,500-line monsters that pass review one screen at a time and sneak up on you. Tunable, off with a flag.
Deep nesting
Logic indented past the depth budget, read straight off the indentation — so it works in any language without a parser.
Stray TODOs
TODO, TBD, FIXME and WIP markers left behind in comments. Do the work, or track it somewhere the repository can see.
Design drift
Inline SVG, literal font stacks, and ad-hoc transitions and keyframes — the details that quietly escape a design system.
One command. Every rule.
Run straitjacket at the root of any project. It honors your .gitignore, prints one line per finding as path:line:col [rule] matched, and exits non-zero on any error — so CI fails the moment slop lands.
No config to write, no toolchain to install. Suppress a false positive on one line with straitjacket-allow, or a whole file with straitjacket-allow-file.
$ straitjacket
src/theme.ts:42:7 [color] #1e1e1e
src/icons/Logo.tsx:12:5 [inline-svg] <svg
docs/setup.md:3:1 [emoji] 🚀
src/api/handlers.ts:1:1 [file-size] 2214 lines
src/worker.ts:88:31 [deep-nesting] nesting depth 9
straitjacket: 5 error(s), 0 warning(s) across 128 file(s); 0 suppressedPut your slop in a Straitjacket.
Encode your taste as deterministic checks and run them across everything an LLM writes — so you never have to go "Yuck!" by hand again.