Bundle format

Bundle layout.

The historical .axint bundle spec is still useful as the conceptual package contract, even though the current production publish API stores JSON payloads in R2 rather than accepting tarball uploads.

01 · section

What the package version carries today

Every published version still has the same conceptual pieces: source, Swift output, plist fragment, IR, README, tags, and compiler version.

Source: TypeScript and optionally Python
Generated Swift output
Plist fragment when relevant
IR for downstream tooling and previews
README and searchable metadata

02 · section

Current production reality

Today the live publish API accepts JSON and stores the large payload in R2. The bundle spec remains the right mental model for what a package version contains.

related guides

Keep going

Manifest schema Trust model Publish flow

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