HELIX Docs
CLI & AI toolsCommand reference

helix publish

Publish a world to HELIX Instant

CLI version 0.1.27-helix3.551. Run helix publish --help for the text your installed build prints.

helix publish

Publish a world to HELIX Instant

helix publish [options] [directory]
ArgumentRequiredDescription
directorynobundle directory
OptionDescription
--placement-bindings <file>JSON worldId/placements mapping from normal reservation receipts
--thumbnail <file>cover image (png, jpg/jpeg, webp, avif, or gif); otherwise preserve a custom cover, use thumbnail.<ext>, or automatically capture the ready world
--skip-subpath-checkskip the pre-publish sub-path load check (not recommended: it is the only gate that serves the bundle the way production does)
--skip-realizability-checkskip the pre-publish server-realizability gate (not recommended: it is what stops you publishing a module world whose banks the server cannot resolve)
--description <text>catalog description, max 1000 chars (pass "" to clear). helix.json cannot carry this — the manifest schema forbids unknown fields
--description-file <path>read the catalog description from a file
--allow-exact-engine-pin <reason>publish a World whose engine systems are pinned to an exact version. Engine systems are ranges ("^0.3"); an exact pin never receives engine fixes. The reason is required and the override is logged to ~/.helix/engine-pin-overrides.jsonl. To ship an engine fix, promote it instead of pinning
--upload-sourceAlso upload this project's source so you can edit this world from the HELIX website later. Off by default — your source is not sent unless you pass this.
--source-dir <path>project directory to archive for --upload-source (default: the bundle directory's parent, since [directory] points at the BUILT bundle). node_modules, .git, dist and .vite are always excluded, as is anything your .gitignore excludes

On this page