Slop Patterns

Measured conclusion: Alive, not deep-tested. L2 outcome: not_attempted.

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

Add to your agent

Copy this into your MCP client config:

{
  "mcpServers": {
    "Slop Patterns": {
      "url": "https://sloppatterns.com/mcp",
      "transport": "streamable-http"
    }
  }
}

Measured tools (7)

• check_design read-only

  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.

  Parameters:

  • code (required) — string — The CSS, HTML or JSX to check. Paste it whole; partial snippets work but full files are more accurate.
  • shareStats — boolean — Optional, defaults to false. If true, contribute an anonymous count of WHICH rule codes fired to the public monthly figures at https://sloppatterns.com/#stats. Never sends your code, your URL, or any identifier.

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• list_patterns read-only

  List the whole Slop Patterns taxonomy: code, id, name and one-liner for every documented AI design anti-pattern.

  Parameters:

  • track — string — Optional filter.

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• get_pattern read-only

  Get 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.

  Parameters:

  • id (required) — string

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• changelog read-only

  The library version, what each release added or changed, and how patterns are versioned. Use it to cite a specific version of Slop Patterns.

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• search_patterns read-only

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

  Parameters:

  • query (required) — string

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• report_pattern

  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.

  Parameters:

  • name (required) — string — A short memorable name for the pattern, e.g. "Skeleton That Never Resolves".
  • description (required) — string — What it looks like and why it is a failure. Two or three sentences.
  • credit — string — Name or handle to credit if this is published. Optional.
  • example — string — A short code or copy snippet showing it. Optional. Do not include anything proprietary.
  • whereSeen — string — Product name or URL where you saw it. Optional but makes the report far more useful.

  Hints: read-only no · destructive no · idempotent no · open-world yes

• why read-only

  Return only the causal explanation for one pattern — which model, tool or template default produces it.

  Parameters:

  • id (required) — string

  Hints: read-only yes · destructive no · idempotent yes · open-world no

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