Dvt Plugin MCP Server

dvt-plugin

The dvt Claude Code plugin — a thin client for dvt (data viz tool).

dvt is an AI-native approach to data visualization: data teams design, generate, and deploy dashboards through a spec-driven workflow, where a dashboard is a versioned JSON spec that humans and agents author the same way. This plugin brings that workflow into Claude Code. It is a thin client — it carries no data and no compute. It bundles two things:

• the dvt dashboard-spec authoring skill, so an agent knows how to read, write, and validate a dvt dashboard spec; and
• an MCP client pointed at a dvt endpoint, so the agent can design, validate, render, and apply specs against a live dvt instance.

The plugin is open and ungated. It contains no secret and no entitlement logic — your access is governed entirely by the dvt endpoint and the key you connect with.

Install

In any Claude Code session:

/plugin marketplace add getdvt/dvt-plugin
/plugin install dvt@dvt-plugin

Then restart Claude Code (plugins don't hot-load).

Connect

After installing, run /dvt:connect and follow the prompts. The plugin talks to a dvt endpoint over MCP; point it at one of two targets:

• dvt Gallery (hosted) — connect to https://mcp.dvt.dev/mcp with a Gallery API key. Mint a key in your dvt workspace at https://app.dvt.dev/app/api-keys, then paste the dvt_live_… value when /dvt:connect prompts for it. The key is stored by Claude Code at user scope, never committed here.
• Direct engine URL — point the client at a dvt engine URL you already have (e.g. http://localhost:8001/mcp).

/dvt:connect registers a user-scoped dvt MCP server with your endpoint and (for Gallery) your key, then verifies the connection by listing your dashboards. Once connected, just ask the agent to build a dashboard.

The plugin bundles the authoring skill so it works offline, but a connected engine also serves its own copy — matched to the spec version that engine speaks — at the MCP Resource dvt://skill/spec-authoring. When that revision is at least as new as the bundled one, /dvt:connect prefers it for the session (and tells you), so authoring stays correct as the schema evolves without a re-install. If the engine doesn't serve it, the bundled copy is always a valid fallback (ADR-0047).

The plugin never embeds a key or any entitlement check. What you can do is decided by your dvt endpoint and the scopes on the key you provide.

What's inside

.claude-plugin/
  marketplace.json              single-plugin marketplace so /plugin marketplace add resolves this repo
plugins/dvt/
  .claude-plugin/plugin.json    plugin manifest (name "dvt", semver)
  commands/connect.md           /dvt:connect — first-run setup + verify (registers the MCP server)
  commands/dvt-review.md        /dvt:dvt-review — critique a spec or a built dashboard, GO / REVISE
  agents/dvt-layout-critic.md   layout, visual design, readability — PASS / NEEDS ATTENTION / SIGNIFICANT ISSUES
  agents/dvt-narrative-critic.md  analytical story coherence — COHERENT / PARTIALLY COHERENT / INCOHERENT
  skills/dvt-spec-author/       dvt dashboard-spec authoring skill (generated at publish time)
  icon.svg
  README.md
  SETUP.md                      connecting from Cowork (GUI-only environments)
.github/workflows/
  plugin-release.yml            tags each published version v<semver>
RELEASING.md                    version + tag convention (semver in plugin.json)
LICENSE                         Apache-2.0

This repo is publish-only — do not send pull requests here. Every file above is rendered from plugins/** in the private getdvt/dvt repo and pushed by the dvt-publisher GitHub App, so a commit made directly to this repo is overwritten by the next publish. Issues and discussions are closed for the same reason. To propose a change, talk to us at dvt.dev. Security reports go to security@dvt.dev (also dvt.dev/.well-known/security.txt), or via GitHub private vulnerability reporting on this repo.

The bundled spec-authoring skill has a single canonical source in getdvt/dvt (web/public/dvt-spec-authoring-skill.md) and is generated into the tree at publish time, so the published copy cannot drift from it.

Maintainers: see RELEASING.md for the version + tag flow.

License

Apache-2.0. dvt is an open funnel artifact — this plugin matches the spec and SDK licensing.