XML Toolkit for Go (XML/SAX2/XPath 3.1/XSLT 3.0/XInclude/XSD/RelaxNG/Schematron/C14N)
Latest release v0.11.0 · 6 Oct 2026
2 files for Codex, OpenCode and Claude Code: helium AGENTS.md, helium CLAUDE.md — 5,391 tokens loaded in every session.
AGENTS.md A 4 tok CLAUDE.md A 5,387 tok These files are lestrrat-go/helium's own configuration — they tell Codex, OpenCode and Claude Code how to work on this repository, so they are not mods to install elsewhere. Copy one as a starting point and replace the parts that are about this project.