@kbn/agent-builder-visualizations-plugin

Registers Agent Builder's visualization capabilities with the agentBuilder plugin. It wires the server-side pieces that let an agent create, persist, and render both standard Lens charts and custom Vega-Lite specifications, and the browser-side attachment UI that renders them inline in a conversation.

What it registers

On setup the plugin registers four things with agentBuilder (and agentContextLayer):

visualization attachment type (server/attachment_types) — validation of the unified attachment payload, by-reference resolution from Lens saved objects, and the agent-facing text representation.
create_visualization tool (server/tools/create_visualization) — creates or updates a visualization from a natural-language query. The caller (agent) picks the renderer via the renderer parameter (lens by default, vega for Vega-Lite); edits to an existing attachment keep its renderer.
visualization-creation skill (server/skills) — guidance the agent follows when calling the tool, including when to prefer Vega over Lens.
visualization SML type (server/sml_types) — the screen/context layer representation used when an existing visualization is passed back into a turn.

On the browser side, public/attachment_types builds the attachment UI definition that bridges the render components from @kbn/agent-builder-visualizations into the Agent Builder attachment registry, passing Kibana services explicitly via VisualizationServices.

@kbn/agent-builder-visualizations-common — attachment schema and shared types (the renderer discriminator, VisualizationAttachmentData, etc.).
@kbn/agent-builder-visualizations-server — the Lens and Vega-Lite generation engines (buildLensConfig, buildVegaConfig).
@kbn/agent-builder-visualizations — the browser render components (InlineVisualization, Lens and Vega renderers).