mojo-build-package

Development

Build Mojo packages (.mojopkg files) for distribution. Use when creating distributable libraries or during packaging phase.

QUICK START

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Source SKILL.md: https://github.com/majiayu000/claude-skill-registry/blob/HEAD/skills/data/mojo-build-package/SKILL.md

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Mojo Build Package Skill

Build compiled Mojo packages for distribution and reuse.

When to Use

Creating distributable libraries
Packaging phase of development
Preparing for package installation
Building modular components

Quick Reference

# Build single package
mojo package src/tensor -o packages/tensor.mojopkg

# Build and test
./scripts/build_package.sh tensor --test

# Build all packages
./scripts/build_all_packages.sh

Workflow

Verify structure - Check __init__.mojo exists
Build package - Run mojo package or script
Test imports - Verify package can be imported
Verify exports - Check __all__ in __init__.mojo

Mojo-Specific Notes

Every package needs __init__.mojo entry point
Export public API in __all__ list
Packages compile to .mojopkg binary format
No circular dependencies allowed

Error Handling

Error	Cause	Solution
`Missing __init__.mojo`	No package entry point	Add `__init__.mojo` to package dir
`Circular dependency`	Modules depend on each other	Refactor to break cycle
`Export not found`	Missing from `__all__`	Add name to `__all__` list
`Build failed`	Syntax errors in module	Fix syntax before building

References

.claude/shared/mojo-guidelines.md - Function definition patterns
Package metadata template: templates/package_toml.toml