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MCP server providing access to 135+ animated React components from ReactBits.dev
ReactBits MCP Server provides 5 well-named, verb-prefixed tools with consistent schema structure. All tools have descriptions and parameter types are declared. However, descriptions lack depth and specificity required for LLM optimization, parameter descriptions are minimal, and output schemas are completely undocumented. Error handling is present but generic. The server follows basic patterns but falls short of production-grade quality.
Get the source code for a specific ReactBits component
Get usage example and demo code for a ReactBits component
List all available component categories
List all available ReactBits components with optional filtering
Search for ReactBits components by name or description
Output schemas completely undocumented. Tool descriptions state what is returned (e.g., 'JSON.stringify(components)') but the actual structure, field names, types, and nesting are invisible to LLMs. This forces LLMs to hallucinate field names when chaining tools or extracting data.
Parameter descriptions are minimal or absent. 'query' in search_components has only 'Search query' (12 chars); 'category' is just 'Filter by category' (18 chars). LLMs cannot infer whether 'category' expects 'animations' vs 'animation' vs 'anim', risking API mismatches.
| Scored | Grade | Overall | Spec posture | Rubric |
|---|---|---|---|---|
| 2026-09-22 | D | 59 | 2026-07-28+ | v2 |
| 2026-03-09 | F | 46 | - | v1 |
Tool descriptions are 45-55 characters, well below the 194-char production average and below the recommended 10 - 1024 range. E.g., 'List all available ReactBits components with optional filtering' (62 chars) omits WHEN to use this vs other discovery tools, what the agent should expect, and dependency hints.
No pagination support despite pattern baseline (pattern:paginated-result). Tools like list_components accept a 'limit' parameter but no offset/page or next_cursor. If ReactBits has 135+ components, returning all without pagination risks blowing context windows. No total count or continuation mechanism is visible.
Error handling is generic. Catch block returns 'Error: {message}' with isError: true, but does not categorize errors (retryable vs user-fixable vs fatal) or guide recovery. Should I ask the user? Is this unrecoverable? A 'Component not found' error should suggest search_components() as a next step.
Enum constraint for 'style' parameter ('css', 'tailwind', 'default') is present and well-defined, but the meaning of each option is not explained in parameter descriptions. LLMs may not know whether 'default' means 'CSS + Tailwind', 'vanilla JS', or 'whatever the server decides'.