MCP-powered design enforcement

Design judgement,
not design guesswork.

DesignAgent encodes what senior designers know into enforceable rules. It plugs into your AI IDE and stops bad design decisions before code is written.

Install Now How It Works

design_intercept response

{
  "intercepted": true,
  "issue_detected": "Destructive action detected using primary button. Destructive actions MUST use the error color palette, not primary.",
  "enforced_change": "Replace primary button color with color.error.500. Use variant 'destructive'.",
  "rationale": "DesignAgent identified [rule-001] as the most critical violation. This correction is mandatory and non-negotiable.",
  "stopped": true,
  "next_step": "Upgrade to continue enforcement."
}

The problem

AI writes code fast.
It cannot make design decisions.

Builders face four painful realities every day:

Design systems break

AI generates UI that looks fine but violates your design tokens, spacing, and color rules.

Components get recreated

Instead of reusing registered components, AI builds new ones from scratch every time.

UX rules are violated

Subtle but constant violations: wrong button hierarchy, missing mobile viewports, bad density.

Designers become cleanup crew

Instead of designing, your team spends cycles fixing what AI got wrong.

What is DesignAgent

Not a generator. An interceptor.

DesignAgent is a design-specific MCP agent that reads your design system, understands UX patterns, and applies judgment before code is written. Think of it as the senior product designer sitting next to your AI IDE, enforcing standards in real time.

Reads design systems and Figma files correctlyApplies platform-specific UX rulesEnforces consistency and determinismPrevents AI from guessing design intent

Intent

What you want to build

→

Intercept

DesignAgent inspects

→

Enforce

Apply correction

→

Block / Pass

Deterministic output

Premium features

Opinionated by design.

Design Judgment Engine

—Button hierarchy enforcement
—Destructive vs primary action rules
—Spacing and density rules
—Accessibility baselines
—Platform conventions (iOS, Android, Web)

Deterministic Outputs

—No hallucinated components
—No inconsistent variants
—No token drift
—No visual guesswork
—If unresolvable, agent stops and asks

MCP-First Architecture

—Works by calling tools, not generating vibes
—Stable, repeatable, auditable outputs
—Figma MCP for real components
—Design system MCPs
—Documentation and pattern MCPs

Taste Is Part of the Product

—Curated typography pairing
—Layout system defaults
—UI density guidelines
—Visual hierarchy rules
—Not everyone agrees on taste. That's why it's paid.

Get started

Install in 30 seconds.

Add the MCP server URL to your IDE config. No npm install. No build step. Just connect.

Opens Cursor and adds DesignAgent to the current project's MCP config.

.cursor/mcp.json

{
  "mcpServers": {
    "designagent": {
      "url": "https://designagent.dev/mcp"
    }
  }
}

Free tier: 1 design intercept per project. Paid: unlimited tools.

Design systems

"What exists?"

Design systems describe components. They are a catalog. They answer what is available but not when or how to use it.

DesignAgent

"What should be used here, and why?"

DesignAgent decides when and how to use components. It enforces correctness, not just availability. It governs decisions, not outputs.

Pricing

Design judgment compounds.

Free tools optimize for volume and speed. DesignAgent optimizes for fewer mistakes, fewer rewrites, and fewer "why does this feel off?" moments.

Free

—1 design intercept per project
—Identifies most critical violation
—Enforces one correction
—Demonstrates authority, then stops

Try Free

Pro

Coming soon

+Unlimited design intercepts
+Full design system audits
+Screen AI-readiness scoring
+Token extraction & validation
+Component rule enforcement
+Deterministic fix suggestions
+Priority support

Built for

+Solo builders using Cursor or Claude Code
+Designers vibecoding real products
+Startups without full-time design teams
+Teams tired of fixing AI-generated UI

Not for

—People looking for free UI templates
—Prompt collectors
—One-off experiments

Stop AI from pretending
it can design.

Design is a decision system. Taste matters. Consistency is leverage. DesignAgent encodes what good designers already know so AI can stop guessing.

Get Started

Design judgement,not design guesswork.

AI writes code fast.It cannot make design decisions.