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← VS Code Extension

Code Lens

Travsr adds a blast radius code lens above every function, method, and class definition. The lens shows the number of files that would be affected if that symbol's signature changed.

Travsr code lens and hover card

Lens format​

🩻 blast: 12 files
async charge(amount: number): Promise<Receipt> {
  • 🩻 blast: is the prefix (always present)
  • The count is the number of files in the blast radius
  • Counts above 99 display as 99+

Supported file types​

Code lenses appear in .ts, .tsx, .rs, .py, and .go files.

Clicking the lens​

Clicking 🩻 blast: N files opens the Blast Radius panel, which lists every affected file with the dependency path that creates the coupling.

Command​

You can also trigger the panel from the command palette:

Travsr: Show Blast Radius

This uses the symbol under the cursor (or prompts you to type one).