domains/: regulated-domain and security context (HIPAA, fintech, crypto, etc.)
tech-stacks/: stack-specific conventions and quality checks
workflows/: reusable execution workflows

Runtime Split

Runtime-neutral content belongs here under ~/.mosaic/profiles.
Runtime-specific settings belong under ~/.mosaic/runtime/<runtime>/....

Current runtime overlay example:

~/.mosaic/runtime/claude/settings-overlays/jarvis-ralph.json

Claude Compatibility

mosaic-link-runtime-assets prunes legacy preset symlink trees from ~/.claude so Mosaic remains canonical and Claude uses runtime overlays that reference Mosaic paths directly.