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Rubric
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About Rubric
Rubric supplies a curated UX corpus to coding agents through the MCP protocol. The tool delivers prescriptive UX guidance before development begins and performs live site audits afterward, using the same rule set. Each unit in the corpus is a single rule with assigned severity, implementation details, and remediation steps. Agents can query the corpus for design advice during development or run automated audits against production sites to generate findings ranked by severity. The findings include the issue description, impact assessment, and actionable fixes. Reports can be exported for review by development teams. Rubric operates as a standard MCP server over streamable HTTP, requiring only authentication via a header. It integrates with MCP-compatible clients such as Claude Code, Codex, Cursor, and Zed.
Key features
- Prescriptive UX guidelines for development
- Live site auditing against the same rules
- Severity-ranked findings with evidence
- Actionable remediation steps per finding
- MCP server over streamable HTTP
- Integration with MCP-compatible clients
- Free tier for evaluation
- API key authentication option
Use cases
- Guiding UX decisions during development
- Auditing live websites for UX compliance
- Generating severity-ranked UX reports for teams
Pros
- Prescriptive UX guidance with severity ratings
- Single corpus used for both design and audit phases
- Supports MCP-compatible clients without proprietary installation
- Provides actionable fixes alongside findings
- Free tier available for evaluation
Cons
- Paid features limited beyond free tier
- Requires MCP-compatible client or API key setup
- No explicit support for non-HTTP transports
Frequently asked questions about Rubric
What does Rubric do?
Rubric provides a curated UX corpus to coding agents via the MCP protocol, delivering prescriptive UX guidance before development and performing live site audits afterward using the same rule set.
Who is Rubric designed for?
Rubric is designed for development teams and coding agents that need consistent UX guidance during design and automated audits after deployment.
How does Rubric integrate with existing tools?
Rubric operates as a standard MCP server over streamable HTTP and works with MCP-compatible clients such as Claude Code, Codex, Cursor, and Zed.
What is included in a Rubric audit report?
A Rubric audit report includes findings ranked by severity, with the issue description, impact assessment, and actionable fixes for each finding.
Does Rubric require any setup beyond installation?
Rubric requires minimal setup; authentication is handled via a header or a browser-based approval process, depending on the environment.
Can Rubric be used in CI or automated workflows?
Yes, Rubric can be used in CI or automated workflows by creating an API key and sending it as an Authorization header instead of using browser-based authentication.
