Your editor shows you that something is wrong. Squiggle tells you why, in plain language, right next to your code.
Squiggle is for people learning Python, JavaScript or TypeScript. When a red squiggle stays put, the Squiggle panel explains what the error means, why it probably happened, and how to fix it.
Features
Plain-language explanations: every error gets a headline, a cause and a fix, often with code you can copy.
Waits until you stop typing: half-typed words never trigger an explanation.
Save-aware: "You saved auth.py 12 seconds before this error appeared" connects an error to the change that caused it.
Fix it for me: one click applies a safe fix for common beginner mistakes, like typos in names and missing colons. Undo works as usual.
Runs on your computer: explanations come from a built-in library, so nothing is sent anywhere.
Getting started
Open the Squiggle tab in the secondary sidebar, then open a Python, JavaScript or TypeScript file. To see sample explanations, run Squiggle: Play Sample Explanations from the Command Palette.
Settings
Setting
Default
What it does
squiggle.patience
1500
How long to wait after you stop typing before explaining an error, in milliseconds.
squiggle.narration
33
How much detail explanations give, from 0 (short and to the point) to 100 (spells everything out).
squiggle.contextLines
10
How many surrounding lines are used to spot misspelled names. 0 uses just the error line.
