The request asks for a tool for UX principles. RavenMCP is the direct match: it exposes get_principles, which returns usability heuristics, laws of UX, Gestalt principles and accessibility requirements, plus evaluate_design for checking a design against those principles 212. GitHub's indexed skills are general development helpers, and the other listed products cover UX only as a side topic, such as Sentry's UX research skill or Mapbox's cartography guidance 313818.
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RavenMCPravenmcp.aiverified and signed
A Design Intelligence MCP server whose get_principles action returns usability heuristics, laws of UX, Gestalt principles and accessibility requirements for a UI context 12.
official:MCP server · Ravenpackage · Raven
for agents: get_principles · evaluate_design · search_knowledge
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GitHubgithub.comverified and signed
A developer platform whose indexed skills include penpot-uiux-design, a guide for creating UI/UX designs in Penpot through MCP tools 11.
official:CLI · github-mcp-serverskill · add-community-extensionskill · git-commitskill · acquire-codebase-knowledge+2,563 community tools built for it
for agents: penpot-uiux-design · csharp-xunit · vscode-ext-localization
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Sentrysentry.ioverified and signed
An error-tracking and performance platform whose replay-ux-research skill analyzes session replays to surface UX patterns and pain points 13.
official:MCP server · @sentry/mcp-serverSDK · @sentry/nodeCLI · sentry-clirepository · sentry-pythonskill · sentry-cli+49 community tools built for it
for agents: brand-guidelines · replay-ux-research · blog-writing-guide
- 4
Mapboxmapbox.comverified and signed
Mapping APIs and SDKs whose mapbox-cartography skill gives guidance on map design principles, visual hierarchy and typography 18.
+5 community tools built for it
for agents: mapbox-cartography · mapbox-data-visualization-patterns · mapbox-style-patterns
Sources
- 1GitHub · Change is constant. GitHub keeps you ahead. · GitHub · GitHubgithub.com · read 2026-10-29
- 2RavenMCP — Design Intelligence MCP for Claude · Open Sourceravenmcp.ai · read 2026-10-29
- 3Sentry Docs | Application Performance Monitoring & Error Tracking Softwaredocs.sentry.io · read 2026-10-29
- 8Mapbox | Maps, Navigation, Search, and Datamapbox.com · read 2026-10-29
- 11penpot-uiux-design: declares "penpot-uiux-design" (the record we read and signed)unfragile.ai · read 2026-10-24
- 12Raven: declares "get_principles" (the record we read and signed)unfragile.ai ·
- 13brand-guidelines: declares "brand-guidelines" (the record we read and signed)unfragile.ai · read 2026-10-24
- 18mapbox-cartography: declares "mapbox-cartography" (the record we read and signed)unfragile.ai · read 2026-10-24
For agents: the 10 actions behind this answer
penpot-uiux-design · penpot-uiux-design verified and signed
Comprehensive guide for creating professional UI/UX designs in Penpot using MCP tools. Use this skill when: (1) Creating new UI/UX designs for web, mobile, or desktop applications, (2) Building design systems with components and tokens, (3) Designing dashboards, forms, navigation, or landing pages,
get_principles · Raven verified and signed
Get design principles relevant to a UI context. Returns usability heuristics, laws of UX, Gestalt principles, accessibility requirements, typography rules, and color theory — matched to what you're designing.
brand-guidelines · brand-guidelines verified and signed
Write copy following Sentry brand guidelines. Use when writing UI text, error messages, empty states, onboarding flows, 404 pages, documentation, marketing copy, or any user-facing content. Covers both Plain Speech (default) and Sentry Voice tones.
PostIssuingPersonalizationDesigns · Stripe API verified and signed
Create a personalization design
upsert_row · Snowflake (Activepieces) verified and signed
Upsert Row — Insert a new row or update an existing one if a row with the same match column value already exists (MERGE INTO).
docker-destructive-guardrails · docker-destructive-guardrails verified and signed
Use this skill before running, or recommending, any Docker command that deletes, wipes, resets, or otherwise irreversibly changes state — even if the user just says to "clean up", "clear the cache", "start fresh", "wipe everything", "nuke it", "reset", "force remove", or "tear down" Docker resources
create-design-system-rules · create-design-system-rules verified and signed
Generates custom design system rules for the user's codebase. Use when user says "create design system rules", "generate rules for my project", "set up design rules", "customize design system guidelines", or wants to establish project-specific conventions for Figma-to-code workflows. Requires Figma
mapbox-cartography · mapbox-cartography verified and signed
Expert guidance on map design principles, color theory, visual hierarchy, typography, and cartographic best practices for creating effective and beautiful maps with Mapbox. Use when designing map styles, choosing colors, or making cartographic decisions.
expo-design-system · expo-design-system verified and signed
Build and maintain a design system inside an Expo app - a reusable theme of design tokens (color, spacing, typography, radius, shadow, motion), reusable component structure with variant/size/state prop conventions, and rules for when to extract a repeated view into a shared component. Use when creat
fastapi · fastapi verified and signed
FastAPI best practices and conventions. Use when working with FastAPI APIs, Pydantic models, dependencies, streaming responses including Server-Sent Events (SSE), and serving frontend apps. Keeps FastAPI code clean and up to date with the latest features and patterns.
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