Specification

Spec

The public XCON spec defines one viewer-only Object Model and four syntax forms. SKETCH is first for Markdown and LLM authoring; JSON is canonical for APIs and schema validation. XML and TAGLESS remain compatibility formats.

Object Model

Ordered name/value dictionaries, arrays, primitives, and components.

XCON/SKETCH

Compact Markdown authoring syntax for examples and LLM drafts.

XCON/JSON

Canonical syntax for APIs, interchange, and schema validation.

XCON/XML

Compatibility syntax for metadata, tools, and round-trip rules.

XCON/TAGLESS

Compatibility symbolic serialization syntax.

Marker Rules

Custom marker selection and escaping guidance.

Security Model

Viewer-only public boundary.

Schema

The JSON Schema is published at /xcon.schema.json and uses the canonical id https://xconviewer.dev/xcon.schema.json.