App Kit

August 4, 2026 ยท View on GitHub

Developer documentation for building apps that run inside Kiro Crew. For the platform's own contracts (where an app's MCP servers land, how its agent JSON is composed), see ../system-specs/modules/app-kit-platform.md.

DocumentCovers
getting-started.mdBuild your first app: scaffold, run, and iterate.
manifest-reference.mdEvery app.json field.
api-reference.mdThe App SDK surface: hooks, storage, chat embedding, and the event bus.
publishing-guide.mdPublishing to the App Store, including the review guidelines an app must meet.
migration-guide.mdMoving an app across a breaking platform version.

examples/ holds two runnable reference apps: a minimal app and a fuller one with skills and a backend.