Spec Driven Development
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Beschreibung vom Entwickler (englisches Original)
AI testing harness with Jay: risk-based checks, bug investigation, and local evidence reports.
Diese drei werden nie zu einer Punktzahl zusammengefasst: Meinungen, Messungen und Beliebtheit sind verschiedene Dinge.
Für diesen Server haben wir noch keine Zusammenfassung in einfacher Sprache geschrieben. Unten stehen die Fakten, die wir aus der Registry gelesen haben.
Wähle die KI-App, die du nutzt, und kopiere die Einstellungen.
CARBON_ANALYTICS, DO_NOT_TRACKDu brauchst
Welche App nutzt du?
Wähle oben deine App. Wir merken sie uns, damit der Button beim nächsten Mal „In … installieren“ anzeigt.
Öffne Claude Desktop → Settings → Developer → Edit Config und füge dies in claude_desktop_config.json ein
{
"mcpServers": {
"carbon": {
"command": "npx",
"args": [
"-y",
"@testers-ai/carbon-mcp"
],
"env": {
"CARBON_ANALYTICS": "your-value",
"DO_NOT_TRACK": "your-value"
}
}
}
}Führe das in deinem Terminal aus
claude mcp add carbon --env CARBON_ANALYTICS=your-value --env DO_NOT_TRACK=your-value -- npx -y @testers-ai/carbon-mcpTrag die leeren Werte ein, bevor du ihn startest.
In .cursor/mcp.json in deinem Projekt oder in ~/.cursor/mcp.json einfügen
{
"mcpServers": {
"carbon": {
"command": "npx",
"args": [
"-y",
"@testers-ai/carbon-mcp"
],
"env": {
"CARBON_ANALYTICS": "your-value",
"DO_NOT_TRACK": "your-value"
}
}
}
}Dein Browser fragt, ob er die App öffnen darf, dann zeigt die App die Einstellungen und bittet dich um Bestätigung. Schlüsselwerte bleiben leer, damit du sie selbst einträgst.
In .vscode/mcp.json in deinem Projekt einfügen
{
"servers": {
"carbon": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@testers-ai/carbon-mcp"
],
"env": {
"CARBON_ANALYTICS": "your-value",
"DO_NOT_TRACK": "your-value"
}
}
}
}Dein Browser fragt, ob er die App öffnen darf, dann zeigt die App die Einstellungen und bittet dich um Bestätigung. Schlüsselwerte bleiben leer, damit du sie selbst einträgst.
Dieser Server läuft auf deinem Computer, und ChatGPT kann sich nur mit Servern im Internet verbinden. Wähle eine andere App.
Deine Auswahl bleibt in einem Cookie auf diesem Gerät; kein Konto nötig.
CARBON_ANALYTICS envDO_NOT_TRACK envDiese Einstellungen werden aus dem Registry-Eintrag des Entwicklers erzeugt. Wenn in der README etwas anderes steht, folge der README.
Läuft auf deinem Computer; die Tool-Liste erscheint nach der Installation in deiner KI-App.
Wir prüfen Informationen, die jeder sehen kann; den Code haben wir nicht gelesen. Checks, die nicht zutreffen, werden nicht mitgezählt. · Geprüft am 7. Nov. 2026
Der Registry-Name wurde mit dem GitHub-Konto jarbon bestätigt, dem das Repo gehört
Dieses Repo haben wir noch nicht von GitHub gelesen
Dieses Repo haben wir noch nicht von GitHub gelesen
Dieser Server läuft auf deinem Computer; es gibt keinen Endpunkt im Internet
Läuft auf deinem Computer und nutzt stattdessen lokale Einstellungen
Läuft auf deinem Computer; Tool-Listen können wir nur von Endpunkten im Internet lesen
Verglichen mit allen aktiven Servern dieser Kategorie in der Registry. Sterne zählen nur, wenn dem Herausgeber das Repo gehört.
Er hat 1 von 1 zutreffenden Basischecks bestanden. Den Code haben wir nicht gelesen. Bevor du einen Schlüssel oder Token hinzufügst, sieh nach, welche Zugriffe der Server verlangt, und nutze einen Schlüssel, der nur die Berechtigungen hat, die du brauchst.
Die Registry nennt keinen erforderlichen Schlüssel, manche Server bitten dich aber bei der ersten Nutzung, dich anzumelden.
Er läuft auf deinem Computer. Deine KI-App startet ihn bei Bedarf, und die Daten laufen nicht über die Server des Entwicklers (außer der Server ruft selbst einen Onlinedienst auf).
Das GitHub-Repo wurde zuletzt – geändert, und die neueste Version (1.32.22-free.17) kam vor 15 Tagen in die Registry.
Apps, die MCP unterstützen, etwa Claude Desktop, Claude Code, Cursor und VS Code. Außerdem brauchst du Node.js auf deinem Computer.
In derselben Kategorie: Spec Driven Development, Remote Desktop Commander, FlyDocs
Server derselben Kategorie von anderen Entwicklern, sortiert nach Sternen.
So liest du eine Karte:★ GitHub-SterneiDrei Säulen: Bewertungen · Checks · NutzungiAktualisiert = neueste Version in der Registry veröffentlichti
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.
Spec-driven development workflow: your agent works issues, sessions and the status lifecycle.
Unverändert aus dem Repo des Entwicklers übernommen. PopNx MCP hat den Inhalt weder geprüft noch empfiehlt es ihn. HTML, Bilder und Skripte wurden entfernt. Links führen von dieser Website weg.
Your AI test manager agent. Jay examines your project and changes, prioritizes risk, coordinates software testing and turns findings into visual evidence. Use CARBON Core for QA, bug finding, accessibility testing, regression-test planning and evidence-backed quality reports. Free under the MIT license.
Start with `/carbon:carbon` in Claude or `/carbon` in Codex. Watch a compact execution plan, the current check and recorded screenshots as the investigation progresses. Reports distinguish executed tests, proposed work and untested gaps.
Website and guide · Command reference · Download releases · Codex edition · Report an issue
The product name is CARBON Core. The repository and technical plugin name remain carbon-free and carbon so existing installations keep receiving updates.
The free, MIT-licensed runtime with Jay is also packaged as @testers-ai/carbon-mcp. Requires Node.js 22+; demo and full-workflow helpers also require Python 3.10+.
Use the npm setup guide and verified release artifacts for MCP installation. The source distribution version is not a claim of npm publication.
See the npm setup guide for the 13 MCP workflow prompts, eight tools, host requirements, and privacy boundaries. npm analytics defaults off; npm installation alone does not register native agent hooks or supply model access. The npm release procedure documents source and package checks.
Cursor source candidate: CARBON Core 1.32.23-cursor.5 · Cursor-specific privacy. Bounded native HTTP smoke passed; marketplace review remains pending.
Grok Bot source prerelease: CARBON Core 1.0.2 · Grok-specific privacy. Local protocol tests passed; native Grok testing and marketplace review remain pending.
Use the model access you already have. In Claude Code, Codex, and other coding agents, CARBON's default testing workflows use the host's configured model access. When the host uses an eligible subscription, CARBON uses that allowance—no separate CARBON model API key is required. If the host uses API credentials or a company LLM proxy, that billing and data policy apply instead. Plan limits and extra-usage charges still apply; CARBON Pro licensing is separate.
Local execution and local reports—not a promise that no data leaves your machine. For local runs, project files, test evidence, and reports are stored in your local workspace. Your coding agent can send selected code, screenshots, prompts, and other context to its configured model provider. Local CARBON is not automatically offline or air-gapped. Cloud runs, external integrations, and optional direct-model checks have separate data flows and may have separate costs. Command-usage analytics vary by edition; review that edition's privacy policy and settings.
To confirm your billing route, check /status in Claude Code or codex login status in Codex. A configured API key can select API billing instead of subscription usage. Standalone MCP clients must supply their own model access and execution tools; installing an MCP server does not include a model subscription.
Free and open source. AI software testing and quality assurance inside Claude.
AI testing inside your coding agent. Built by testers.ai.
CARBON gives your coding agent risk-based testing instructions and a local evidence runtime. The agent inspects your authorized project, runs checks using its available browser, terminal or API tools, and records findings in a live report. CARBON's MCP server does not independently run the investigation or manufacture results.
Four compact report views help you move from a decision to its evidence:
Zoom screenshots, keep the full record one click away, and export portable HTML/JSON. Live reports retain their last good snapshot and quietly reconnect after interruption. Unknown and deferred checks remain distinct from passing checks.
Jay, the AI test manager, now introduces the assessment and appears in reports. Specialist profiles use role-based names and new light/dark icon identities rather than human names and photographs. They remain AI perspectives, not human reviewers. See the AI testing team, visual profile gallery, command guide, and MCP tool reference. Role names describe AI testing perspectives, not independent human review.
| Skill | Purpose |
|---|---|
carbon | Bounded risk-based assessment, including business value and persona journeys |
carbon-demo | Create a disposable sample project, then assess it |
carbon-test | Test one named behavior, feature or change |
carbon-issues | Bug hunt with at least half the budget for stateful and persona exploration |
carbon-accessibility | Focused accessibility investigation with evidence and limitations |
carbon-map | Explore screenshots, checks and findings from the current assessment |
carbon-help | Choose an appropriate Free workflow |
carbon-settings | Change local planning defaults and analytics preference |
jay | Talk to your AI test manager; j is an alias |
full | Run a comprehensive, resumable campaign using Core capabilities |
carbon-background | Control bounded local quick checks in supported hosts |
carbon-pro | Explore the separate Pro edition without starting checkout |
Twelve distinct commands, with thirteen skill entrypoints including the j alias. Host prefixes differ; Claude normally uses /carbon:command.
All recorded findings, persona journeys, HTML/JSON exports and current-run maps are included. No CARBON account, payment or finding unlock is required. Your coding-agent subscription or API usage is separate. The usual 20-minute/20-check planning default is adjustable, not a coverage guarantee or hard run quota.
Requirements: Node.js 22 or later; Python 3.10 or later for the optional demo creator. No npm install is needed for the MCP runtime. Browser automation depends on the tools your coding agent has available. Optional demo tests have their own documented dependencies.
git clone https://github.com/jarbon/carbon-free.git
claude --plugin-dir /absolute/path/to/carbon-free
Replace the path with your checkout. Claude Code normally prefixes plugin skills with the plugin name. Try these three examples:
/carbon:carbon — assess the current project. If the folder is empty or the target is unclear, Jay asks what to test: a URL, folder/repository, API, app/feature, or requirements. With a clear target, he runs a broad assessment and reports findings, evidence-qualified confidence, gaps, and next steps./carbon:carbon-issues ./my-app — investigate bugs, including state transitions and multi-step journeys, in an authorized project./carbon:carbon-accessibility http://localhost:3000 — test an app you control; report actual evidence and untested criteria separately.Use /carbon:carbon-map for the latest assessment or /carbon:carbon-settings to adjust defaults. Names and embedded-browser support can vary by host/version; use the host's skill picker. Install one CARBON edition at a time because editions share the carbon namespace. This repository is not a claim of Anthropic approval or listing.
The bundle also contains a Codex manifest. Other MCP hosts may launch node /absolute/path/to/carbon-free/server/index.mjs, then expose the bundled skills through their supported mechanism. A chat host without local process/browser access cannot provide the same runtime behavior. Test the surface you intend to use.
server/index.mjs, using Node standard libraries.runtime/carbon/scripts/carbon_demo.py via Python. Fixtures are synthetic examples, some intentionally imperfect; never deploy them as production apps..carbon/free/. Existing reports are retained. Uninstalling does not erase evidence.127.0.0.1 and use random access tokens. The agent opens them with its own browser/panel tool where supported. Saved HTML remains usable after the runtime stops. Review exports before sharing.https://cdn.usefathom.com/. It does not send prompts, source, target URLs, screenshots, findings, credentials or a stable user identifier. Network metadata is visible to that service. Set CARBON_ANALYTICS=off before startup or disable analytics in settings. No telemetry is sent merely by importing the module..config/carbon/ in your user home. Project evidence has no automatic expiration; you control retention.See the privacy policy for data handling, retention and contact details. There is no private benchmark fetch, reviewer service, remote MCP backend or Pro unlock code in this bundle.
Only recorded evidence is displayed. Unexecuted tests remain blocked or deferred; suspected issues are distinguished from demonstrated failures. Confidence is scoped engineering judgment, not a calibrated probability that the whole product is correct. AI persona feedback is simulated, not human research. Accessibility results are not a certification or legal opinion. This Free runtime does not generate formal DOCX conformance documents or run continuous automatic repair.
node --version, reload the plugin and inspect the host's MCP connection status. Run claude plugin validate . from the checkout.carbon_report or open its saved HTML.python3 --version and the selected fixture's README.Product/security support: jason@testers.ai. Reproducible non-sensitive problems: GitHub issues.
From the repository root, run node tests/smoke.mjs .. The checks use temporary synthetic projects and disable analytics. They exercise the MCP interface, demo copying, report lifecycle, evidence exports, settings persistence, authentication, cross-origin rejection and symlink protection. They do not certify accessibility, security, or performance of an application under test.
Open source under the MIT Licens
Nur der Anfang wird gezeigt; den Rest findest du im Repo