Comparison

spec vs SonarQube MCP Server

spec is no longer listed on any marketplace we read: these are its last known data, as of 2026‑10‑24.

spec is a plugin bundle for AI coding tools published by elct9620. No marketplace we read lists it any more. SonarQube MCP Server is an MCP server published by SonarSource. Marketplaces we read that list it: 2 (Official MCP Registry, Docker MCP Catalog). As of our marketplace pass on 2026-10-29. A plugin in this pair is no longer listed on any marketplace we read, so search engines are asked not to index the page.

Where each is published

Where each is published
Marketplace	spec	SonarQube MCP Server
Community marketplace elct9620/claudekit	Removed on 2026-10-24 Version: 0.10.0 Forks (GitHub): 0 Stars (GitHub): 2 Not marked · First seen 2026-10-16	Not listed
Official MCP Registry	Not listed	Listed Version: 1.30.0 Forks (GitHub): 102 Stars (GitHub): 675 Not marked · First seen 2026-10-11
Docker MCP Catalog	Not listed	Listed Version: sha256:925c88bc7cab Forks (GitHub): 102 Pulls (Docker Hub): 1 619 764 Stars (Docker Hub): 23 Stars (GitHub): 675 Not marked · First seen 2026-10-11

Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.

The facts side by side

spec vs SonarQube MCP Server
Fact	specno longer listed · 2026-10-24	SonarQube MCP Server
Marketplaces that list it (differs)	0	2
Stars (GitHub) (differs)	2	675
Pulls (Docker Hub) (differs)	No figure on Docker Hub	1 619 764
Forks (GitHub) (differs)	0	102
Last release (differs)	Not published	2026-10-23
Where it runs (differs)	Installs as a plugin bundle	On your machine (docker.io/sonarsource/sonarqube-mcp)
Transport (differs)	Not stated	stdio
Tools it declares (differs)	Not published	25
Environment variables it asks for (differs)	Not published	3, secrets among them: 3
Parts of the bundle (differs)	6	Not a bundle
Licence (differs)	Apache-2.0	NOASSERTION
Repository (differs)	github.com/elct9620/ai-spec-skills	github.com/sonarsource/sonarqube-mcp-server
Changes in the last 7 days (differs)	2	1
First seen (differs)	2026-10-16	2026-10-11

Lines where the two differ have a tinted background and bold values. No value is marked better or worse: a plugin no marketplace lists any more is shown with its last known data, which we do not rank against current figures.

What to use instead of spec

Plugins still listed whose own names, descriptions, tools and skills are closest in meaning to it. Comparable, not endorsed.

spec-reviewer

Specification review: analyze specs for gaps, inconsistencies, and scope estimation

by Danil Pismenny · Plugin bundle

Listed on: Community GitHub marketplaces · Describes nearly the same job
spec-dd

Specification-driven development workflow skill. Orchestrates a spec-first discipline with advisory quality gates: a one-page Product Spec (problem, falsifiable bet, success…

by Florian Buetow · Plugin bundle

Listed on: Community GitHub marketplaces · Describes nearly the same job
spec-engine

Spec-driven development engine: turns feature specs into working code through structured requirements, wave-based parallel agent execution, and automated quality gates.

by farshidghyasi · Plugin bundle

Listed on: Claude Code: claude-plugins-community · Describes nearly the same job
specops

Spec-driven development workflow - transforms ideas into structured specifications (requirements, design, tasks) before implementation.

by sanmak · Plugin bundle

Listed on: Claude Code: claude-plugins-community · Describes nearly the same job
spec-driven-dev

Explore directions through research-led brainstorming, write comprehensive specs, and implement them with risk-first subagent workflows and live verification

by Daan Ferdinandusse · Plugin bundle

Listed on: Community GitHub marketplaces · Describes nearly the same job
openspec

OpenSpec workflow management: init, plan, design, develop, review, test, sync, reflect, replan

by dstoic · Plugin bundle

Listed on: Community GitHub marketplaces · Describes nearly the same job

Its card, with similar plugins by marketplace

What each says it does

spec

In its own words, on Community GitHub marketplaces:

A plugin for maintaining project specifications

SonarQube MCP Server

In its own words, on Official MCP Registry:

Analyze code quality and security with SonarQube Server or Cloud directly in AI assistants.

How to run each

spec

No data for an automatic command: what its marketplaces declare does not say unambiguously how to connect it.

SonarQube MCP Server As a local MCP server: Docker image

Claude Code

claude mcp add --env "SONARQUBE_ORG=<YOUR_SONARQUBE_ORG>" --env "SONARQUBE_TOKEN=<YOUR_SONARQUBE_TOKEN>" --env "SONARQUBE_URL=<YOUR_SONARQUBE_URL>" --transport stdio sonarqube-mcp-server -- docker run -i --rm -e SONARQUBE_ORG -e SONARQUBE_TOKEN -e SONARQUBE_URL docker.io/sonarsource/sonarqube-mcp

Requires: SONARQUBE_ORG (secret), SONARQUBE_TOKEN (secret), SONARQUBE_URL (secret)

Commands built only from what the marketplaces declare; the full set for every client is on each card.

Tools each declares

The marketplaces of spec publish no list of tools, so we do not compare tools.

Settings each asks for

The marketplaces of spec publish no settings it asks for, so we do not compare settings.

What it can do: spec · What it can do: SonarQube MCP Server · Compare two other plugins

Data comes from public marketplace files in GitHub repositories of their authors. Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Data comes from the Docker MCP Catalog (desktop.docker.com/mcp/catalog) and Docker Hub. Figures come from our own regular passes over the marketplaces, last read on 2026-10-29. We publish no contact details for plugin publishers.