Canvas Reference Overview

Canvas is the admin-only, versioned authoring surface for a Space. This section documents its snapshot format, its operations, and its access rules.

Canvas is available only to Space admins, and only in Spaces where Ligantic has enabled it. Elsewhere, Canvas pages and operations return a 404, and Canvas does not appear to exist.

Scope

This section covers:

The Canvas resource, its lifecycle states, and its version history
The canonical Canvas snapshot format, including node kinds and backing references
Ingestion of uploaded files into artifacts
Tabular preview, table extraction, and Schema literal derivation
The candidate review and provenance model
Conversion of literal nodes into first-class Schemas, Experiences, and Flows
Flow literal runs and run compatibility
Enablement, authorisation, and route access
Space export and import of Canvas data

Entry Points

Object Model

Object	Description
Canvas	Named, Space-scoped authoring surface with a current version
Canvas version	Immutable snapshot with a parent version and a change summary
Canvas audit record	Lifecycle change record, kept outside version history
Candidate	Generated or derived content attached to a Canvas node
Candidate decision	Immutable accept, reject, or supersede record
Provenance record	Link from a source artifact to a derived artifact
Conversion record	Record that a literal node became a resource
Artifact	Immutable stored content that Canvas nodes refer to

Limitations

Candidates cannot be reviewed, edited, or re-run in Studio or through the API. Table extraction and Schema derivation accept their output automatically.
Convert to resource is not offered for flow:literal nodes. See Canvas Conversion.
Canvas does not create flow:literal nodes. See Canvas Flow Literal Runs.
Stored content is not metered, billed, or quota-limited.

How to Check Whether Canvas Is Available in a Space

This guide shows you how to tell whether Canvas is available in a Space, and what to do when it is not.

How to Convert a Canvas Literal Into a Resource

This guide shows you how to promote a literal node on a Canvas into a first-class Schema or Experience.

How to Get Content Onto a Canvas

This guide shows you how to bring a file onto a Canvas and turn it into structured content.

How to Use Generated Content on a Canvas

This guide shows you how generated content on a Canvas is accepted, and what you can and cannot do with it.

Canvas Reference Overview

Scope

Entry Points

Object Model

Limitations

Related pages