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Slop Patterns

R0· no sign-in

Checks UI code for AI-default design patterns and gives the fix. By Precious Studio.

v1.2.1 · active · repository · website · descriptor JSON · versions

An agent can connect right now, no human step.Remote endpoint, no authentication, reachable on the last probe.
Quality80good
Trust96of 100
Uptime, 30 days100%
Latency p50221 ms

Connect

8 clients · secrets stay placeholders
{
  "mcpServers": {
    "slop-patterns": {
      "type": "http",
      "url": "https://sloppatterns.com/mcp"
    }
  }
}
claude mcp add --transport http slop-patterns https://sloppatterns.com/mcp
[mcp_servers.slop-patterns]
url = "https://sloppatterns.com/mcp"
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "slop-patterns": {
      "type": "remote",
      "url": "https://sloppatterns.com/mcp",
      "enabled": true
    }
  }
}
{
  "mcpServers": {
    "slop-patterns": {
      "type": "http",
      "url": "https://sloppatterns.com/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=slop-patterns&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vc2xvcHBhdHRlcm5zLmNvbS9tY3AifQ%3D%3D"
}
{
  "servers": {
    "slop-patterns": {
      "type": "http",
      "url": "https://sloppatterns.com/mcp"
    }
  }
}
{
  "mcpServers": {
    "slop-patterns": {
      "httpUrl": "https://sloppatterns.com/mcp"
    }
  }
}
extensions:
  "slop-patterns":
    enabled: true
    name: "slop-patterns"
    type: streamable_http
    uri: "https://sloppatterns.com/mcp"
    timeout: 300

Quality 80 / 100good

protocol75 · weight 25
  • warn
    protocol.modernnewest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
  • n/a
    protocol.statelessonly applies to 2026-07-28 servers
  • pass
    protocol.transportstreamable HTTP
  • n/a
    protocol.list_ttlonly applies to 2026-07-28 servers
authorizationn/a · weight 15
  • n/a
    auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
  • n/a
    auth.secret_in_urlno templated URL
tool hygiene100 · weight 30
  • pass
    tools.descriptionsevery tool has a description
  • pass
    tools.description_lengthdescriptions are concise
  • pass
    tools.schemasevery tool has an object input schema
  • pass
    tools.annotations7 of 7 tools declare readOnlyHint or destructiveHint
  • pass
    tools.directory_hintsevery tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
  • pass
    tools.token_costabout 883 tokens to load every tool
  • pass
    tools.api_dumptools are not a one-to-one API dump
stability50 · weight 15
  • pass
    stability.changes3 tool changes in 30 days
  • fail
    stability.rug_pull1 tools kept their name but changed most of their description in 30 days; review before trusting them
dependenciesn/a · weight 15
  • n/a
    deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

7 tools, about 883 tokens to load them all · tool set e98fffd4e20b · tools last changed 2026-10-13 · checked 2026-10-19 22:14 UTC

Tool changes

  • report_patternchangeddescription
    before

    Report an AI design anti-pattern that is NOT yet in the library. Use this when you notice the same design failure repeatedly and a search of the library turns up nothing. Reports are reviewed by a human before anything is published, and published entries credit the reporter.

    after · 70% of words in common

    Report an AI design anti-pattern that is NOT yet in the library, for a design failure seen repeatedly that a search of the library does not find. Reports are reviewed by a human before anything is published, and published entries credit the reporter.

  • search_patternschangeddescriptionmeaning changed
    before

    Plain-language search across the library. "dark mode with no light option" returns A7 Permanent Midnight.

    after · 35% of words in common

    Plain-language search across the library. "gradient headline" returns A10 Gradient Text Headline.

  • check_designchangeddescription
    before

    Check a snippet of CSS, HTML or JSX against the Slop Patterns library and return every AI design anti-pattern it matches, with the fix for each. Covers the 104 patterns that have a mechanical tell. Call this on generated UI code before presenting it to the user.

    after · 74% of words in common

    Check a snippet of CSS, HTML or JSX against the Slop Patterns library and return every AI design anti-pattern it matches, with the fix for each. Covers the 101 documented patterns that have a mechanical tell. Useful for reviewing generated UI code.

Full history: list_changes · trend: quality JSON.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 96 / 100

provenance85
liveness100
freshness100
hygiene100

+repository +dns-namespace +website +reachable +uptime-100% +updated-7d-ago

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Endpoints

remoteauthreachableuptime 30dp50protocollast ok
https://sloppatterns.com/mcp streamable-httpnoneyes100%221 ms2025-11-252026-10-19

Tools (7)

changelogread-onlyThe library version, what each release added or changed, and how patterns are versioned. Use it to cite a specific version of Slop Patterns.
check_designread-onlyCheck a snippet of CSS, HTML or JSX against the Slop Patterns library and return every AI design anti-pattern it matches, with the fix for each. Covers the 101 documented patterns that have a mechanical tell. Useful for reviewing generated UI code.
get_patternread-onlyGet one full pattern entry by id or code (e.g. "a1" or "the-unchosen-gradient"): what it looks like, why the tools produce it, who it hurts, the fix, sources.
list_patternsread-onlyList the whole Slop Patterns taxonomy: code, id, name and one-liner for every documented AI design anti-pattern.
report_patternReport an AI design anti-pattern that is NOT yet in the library, for a design failure seen repeatedly that a search of the library does not find. Reports are reviewed by a human before anything is published, and published entries credit the reporter.
search_patternsread-onlyPlain-language search across the library. "gradient headline" returns A10 Gradient Text Headline.
whyread-onlyReturn only the causal explanation for one pattern — which model, tool or template default produces it.

Schemas: list_tools.

Similar MCP servers

Official server.json
{
  "name": "com.sloppatterns/slop-patterns",
  "title": "Slop Patterns",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://sloppatterns.com/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "1.2.1",
  "repository": {
    "url": "https://github.com/pavithralamahewa/slop-patterns",
    "source": "github"
  },
  "websiteUrl": "https://sloppatterns.com",
  "description": "Checks UI code for AI-default design patterns and gives the fix. By Precious Studio."
}