---
title: Concepts
type: page
order: 20
date: 2026-03-25
summary: Core concepts behind indexbind artifacts, runtimes, and API boundaries.
---

# Concepts

Use this section for the model behind the library, not just the commands.

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- [Canonical Bundles](./canonical-bundles.md)
  2026-03-25 · The portable file-bundle artifact shared by web and worker runtimes.
  <!-- mdorigin:index kind=article -->

- [Runtime Model](./runtime-model.md)
  2026-03-25 · The retrieval-only runtime boundary across Node, browsers, and Cloudflare Workers.
  <!-- mdorigin:index kind=article -->

- [Canonical Artifact and WASM](./canonical-artifact-and-wasm.md)
  2026-03-25 · The current architecture direction for retrieval-only contracts, canonical bundles, and wasm runtimes.
  <!-- mdorigin:index kind=article -->

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