---
title: Reference
description: 'The Dashies contract: the spec schema, every tile type, runtime attributes, theme tokens, limits, SQL dialects, errors and the URL rules.'
updated: 2026-08-05
---

Reference answers "what are the exact parameters". It states the contract and
nothing else: no walkthroughs, no rationale. When a page here needs to explain
*why*, it links to [Core concepts](/concepts); when it needs to show you how,
it links to [Guides](/guides/install).

Most of this section is checked against the code it documents. A build guard
reads the live MCP tool list, the exported size constants, and the published spec
schema, and fails this site when a page disagrees with any of them.

## The authoring contract

| Page | What it holds |
|---|---|
| [Dashboard spec (v1)](/reference/spec) | Every field of the YAML document you publish, with its type and bounds. |
| [Tile types](/reference/tiles) | All eighteen tiles, their required bindings, and what each one does rather than draw a wrong picture. |
| [Limits](/reference/limits) | Every size ceiling, by name, including the per-engine caps. |
| [SQL dialect notes](/reference/sql-dialects) | What changes about your cube SQL per warehouse engine. |

## The published artifact

| Page | What it holds |
|---|---|
| [Runtime attributes](/reference/runtime-attributes) | The `data-dash` roles and every `data-*` attribute the runtime reads. |
| [Theme tokens](/reference/theme-tokens) | The `--drt-*` custom properties, their default values, and the colours that are not tokenized. |
| [URLs, slugs and reserved names](/reference/urls-and-slugs) | Where a dashboard lives, what a slug may be, and which names are taken. |

## When something goes wrong

| Page | What it holds |
|---|---|
| [Errors](/reference/errors) | The publish finding envelope, the refresh failure classes, and the named refusals. |

## The MCP surface

[MCP tools](/reference/mcp-tools) is its own subsection: eighteen tool pages plus
[the protocol](/reference/mcp-tools/protocol) and
[the shared rules](/reference/mcp-tools/conventions) they all inherit.