Tooling

The language is one half of Turf. The other half is the tool you run: how it builds a project, how you call it, and how it talks to you when something is wrong.

CLI and Diagnostics: the turf commands and flags, the diagnostic format and every error code, static analysis, runtime failures, --smart.
Projects and Packages: turf.toml, path and git dependencies, turf.lock, how imports resolve across packages.

For the full list of error codes, see Error codes.

In this section

CLI and DiagnosticsThe turf commands and flags, the diagnostic format and error codes, static analysis, and what a compiled program does when it fails.
Projects and Packagesturf.toml, path and git dependencies, turf.lock, how imports resolve across packages, and the cache.

Last updated: Oct 15, 2026Edit this page on GitHub