MCP HeartbeatTHE MCP OBSERVATORY
Public workspace

Explore

Evidence for your next connection.

Independent measurements of remote MCP servers. Every observation has a timestamp.

Read-only probes

MCP server · Code & DevOps

io.github.KarstenKreh/standby-design-mcp

Generate design systems: OKLCH colors, fluid type scales, spacing, shape, icon and motion tokens.

Checks passed
14 / 22

0 failed · 8 not measured

Median response
120 ms

Median of successful probes over 7 days

30-day uptime
Not measured

Share of countable probes over 30 days, including daily rollups. Auth challenges are excluded.

Discovered tools
11

Tool definitions returned by this server

Independent monitoring

Health & checks

Status history

Responded

The server completed its last measured handshake. This is an observation, not a guarantee.

Last checked
Check summary by test group
Test areaPassedFailedUnmeasured
ConnectionCan a client connect and discover tools?
500
Reliability & speedDoes it respond consistently and quickly?
004
Access & authenticationWhat is required to use this server?
102
Tool qualityAre the tool definitions usable by an agent?
400
Publisher identityCan the publisher be traced to its source?
402

Unmeasured means there is not enough evidence to decide. How these checks work

Inspect individual checks 22 recorded

Core

  • Pass
    Reachable

    Latest probe returned HTTP 200 in 120 ms.

  • Pass
    Valid handshake

    protocolVersion 2025-11-25, serverInfo.name standby-design.

  • Pass
    Lists tools

    tools/list returned 11 tools.

  • Pass
    Current protocol

    Negotiated 2025-11-25. The bar is 2025-06-18 or newer.

  • Pass
    HTTPS

    The endpoint URL is https.

Performance

  • Not measured
    Fast (p50)

    Median latency 120 ms over 1 samples in 7 days. The bar is 1000 ms. Need at least 5 samples.

  • Not measured
    Consistent (p95)

    95th percentile 120 ms over 1 samples in 7 days. The bar is 3000 ms. Need at least 20 samples.

  • Not measured
    Reliable (uptime)

    1 of 1 attempts returned a tool list in 30 days (100%). The bar is 99%. Need at least 30 samples.

  • Not measured
    Stable tool list

    Fewer than two successful probes in 30 days, so tool-list stability is not measured.

Access

  • Pass
    Open access

    tools/list succeeded with no credential, and the record declares none.

  • Not measured
    Standard auth

    Auth is not required, so the OAuth metadata check does not apply.

  • Not measured
    Free tier cited

    No publisher quote has been checked.

Tools

  • Pass
    Tools described

    Every tool description is at least 20 characters.

  • Pass
    Valid input schemas

    Every inputSchema is a JSON Schema object.

  • Pass
    Parameters documented

    80 of 85 parameters have a description (94%). The bar is 80%.

  • Pass
    Safety hints

    Every tool sets readOnlyHint or destructiveHint.

Publisher

  • Pass
    Verified namespace

    Listed in the Official MCP Registry.

  • Not measured
    Website matches publisher

    This namespace is not a reverse domain, so the website comparison does not apply.

  • Pass
    Source repo linked

    A repository URL is on file.

  • Pass
    Repo owner matches

    The GitHub repository owner matches the namespace login.

  • Pass
    Recently updated

    Updated 2026-11-06T20:21:58.914252Z, within 180 days.

  • Not measured
    Open-source licence

    The GitHub licence lookup has not returned an OSI result yet.

Start using io.github.KarstenKreh/standby-design-mcp

Connect to this server

Choose your client, copy the configuration, then enable the server in your client’s MCP settings.

Run this command in your terminal, then restart Claude Code.

Claude Code

claude mcp add --transport http io-github-karstenkreh-standby-design-mcp https://mcp.standby.design/mcp

Capabilities

Tools 11

export_design_system

Generate the full token code for a design system URL in one format: "css" (CSS custom properties incl. semantic shadcn/ui-compatible tokens), "tailwind" (Tailwind v4 @theme), "design-tokens" (W3C DTCG JSON — typography, spacing & layout, shape, icons and motion; color is not part of it), "llm-briefing" (Markdown brief for AI code generation), or "font-embed" (Fontshare <link> snippet). Optionally restrict to specific sections. Every format carries the standby.design/system share link. Always give that URL to the user alongside the code and keep it as a comment in the theme file of the target project — the link is the deliverable.

Discovered
generate_color_palette

Generate a perceptually uniform OKLCH color palette from a brand color: 18-step scales for brand/surface/error/accents, semantic tokens (shadcn/ui compatible), light+dark modes. Returns a shareable standby.design/system URL and a compact summary. Always give that URL to the user — the link is the deliverable; it opens the live system in the browser. Use export_design_system for full CSS/Tailwind output.

Discovered
generate_icon_tokens

Pick an icon set and generate icon sizing tokens (xs–2xl + stroke width). Either select a specific set or state style preferences and get a recommendation. Available sets: material-outlined, material-filled, lucide, phosphor-regular, phosphor-bold, phosphor-thin, phosphor-fill, solar-linear, solar-bold, solar-broken, tabler-outline, tabler-filled, radix. Returns a shareable standby.design/system URL and a summary. Always give that URL to the user — the link is the deliverable.

Discovered
generate_motion_tokens

Generate spring-based motion tokens from two brand-character axes: energy (calm → lively, sets the tempo) and material (firm → elastic, sets how much spatial motion overshoots). Returns 6 primitive springs (spatial/effect × fast/default/slow), 11 semantic tokens (press, move, expand, enter, exit, fade, navigate.*, sheet.*, container) and the reduced-motion rule. Start from a preset, then fine-tune with energy/material. Returns a shareable standby.design/system URL and a summary. Always give that URL to the user — the link is the deliverable. Use export_design_system for CSS, design tokens or the LLM briefing; SwiftUI, Compose and Motion (JS) code is exported in the UI at standby.design/motion.

Discovered
generate_shape_tokens

Generate shape tokens — radii, shadows, borders, focus rings — in one of four visual styles: "paper" (classic surfaces with layered shadows), "glass" (liquid glass), "neomorph" (soft neumorphism), "neobrutalism" (hard offset shadows). Returns a shareable standby.design/system URL and a summary. Always give that URL to the user — the link is the deliverable.

Discovered
generate_space_tokens

Generate spacing tokens (3xs–3xl), breakpoints, container widths, prose measure, and aspect ratios. Returns a shareable standby.design/system URL and a summary. Always give that URL to the user — the link is the deliverable.

Discovered
generate_type_scale

Generate a fluid typographic scale (CSS clamp() between 375px and 1920px viewports) with 11 levels (Display, H1–H6, Body L/M/S, Caption), Fontshare fonts, line heights and letter spacing. Returns a shareable standby.design/system URL and a summary table. Always give that URL to the user — the link is the deliverable. Use list_fonts to discover font slugs.

Discovered
get_design_rules

Universal design rules for building UI with design tokens: layout, flow (empty, loading and error states, dialogs), shape, surfaces, interaction and keyboard access, forms, content structure, states, typography, color and stack rules for Tailwind/React Native. The tokens say which values exist; these rules say how to use them. Call this before building or reviewing views. Without arguments it returns every rule as one line (63 rules); pass rules (slugs) or a category with detail "full" for the complete text including how to detect violations in code. Rule texts are in German. Categories: Layout, Fluss, Form, Fläche, Bedienung, Formular, Inhalt, Zustand, Typografie, Farbe, Stack.

Discovered
get_design_system

Decode a standby.design URL (or raw hash) and return an overview of the full design system: color palette, type scale, spacing & layout, shape tokens, motion springs, and icons — plus per-tool edit links. Always give the standby.design/system URL to the user — the link is the deliverable.

Discovered
list_fonts

List Fontshare font slugs usable in generate_type_scale (headingFont/bodyFont/monoFont), grouped by category. This is the bundled seed catalog — any valid Fontshare slug works even if not listed here.

Discovered
update_project

Returns the steps to install or update the standby.design rule enforcement (lint hook, pre-commit, CI, review skill, agent instructions) in the current project. Call this when the user asks to get the latest standby.design rules or update, e.g. "Hol Dir das Update", "update standby", "set up the design rules here".

Discovered

Recent measurements

Probe history

View status
Latest stored probes. Raw probe rows are kept for 14 days.
CheckedResultResponseTools
Connected120 ms11