Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

1.1.1 - 2026-06-20

Updated glance to 6.1.0, which parses string-prefix patterns that discard the rest (e.g. "a" <> _). Modules using that form now annotate instead of failing to parse.

A reusable interface cache. Annotate a module or walk a package while reusing the work done for shared imports across calls, then drop a single module’s cached interface when its source changes.

Faster annotation, most noticeably when typing many modules or re-annotating the same module as it changes.
Now requires Gleam 1.15.0 or newer.

Annotate a single Gleam module or a whole package, reporting the inferred type of every expression — keyed by its source span — and the signature of every top-level function and constant.
Accepts either source text or a glance AST you have already parsed.
Choose the build target (Erlang or JavaScript) and supply your own resolver for imported modules, with a default resolver that reads them from disk.
Best-effort package annotation: definitions that cannot be typed are reported individually, and every other definition in the module is still annotated.
Render any inferred type to Gleam syntax, produce a human-readable report, and describe why a module could not be typed.
A command-line interface that annotates a file or standard input.