@ctxlyr/typecheck

Token-efficient TypeScript error reporter for AI agents.

Runs the tsc already available to the current project and compresses verbose error output into symbolic shorthand. Designed to minimize tokens when feeding diagnostics to AI coding agents.

Usage

bunx @ctxlyr/typecheck

All arguments are passed directly to tsc; the wrapper appends --noEmit --pretty false.

bunx @ctxlyr/typecheck -p tsconfig.json
bunx @ctxlyr/typecheck src/index.ts

By default, the command exits with the same status as tsc. Use --exit-zero when you want compressed diagnostics without failing the shell step.

Output

Passing:

Errors:

src/foo.ts(15,22):TS2339:'foo'@'Bar'
src/foo.ts(16,28):TS2339:'foo'@'Bar'
src/baz.ts(8,15):TS2339:'baz'@'Qux'

Before/After

Raw tsc output:

src/foo.ts(15,22): error TS2339: Property 'foo' does not exist on type 'Bar'.
src/foo.ts(16,28): error TS2339: Property 'foo' does not exist on type 'Bar'.
src/baz.ts(8,15): error TS2339: Property 'baz' does not exist on type 'Qux'.

Compressed output:

src/foo.ts(15,22):TS2339:'foo'@'Bar'
src/foo.ts(16,28):TS2339:'foo'@'Bar'
src/baz.ts(8,15):TS2339:'baz'@'Qux'

License

MIT