CUR-005: Unknown Frontmatter Keys - Cursor

Summary

• Rule ID: CUR-005
• Severity: MEDIUM
• Category: Cursor
• Normative Level: SHOULD
• Auto-Fix: Yes (safe)
• Verified On: 2026-02-04

Applicability

• Tool: cursor
• Version Range: unspecified
• Spec Revision: unspecified

Evidence Sources

• https://docs.cursor.com/en/context

Test Coverage Metadata

• Unit tests: true
• Fixture tests: true
• E2E tests: false

Examples

The following examples demonstrate what triggers this rule and how to fix it.

Invalid

---
description: TypeScript rules
unknownKey: some-value
---
# Rules

Use strict mode.

Valid

---
description: TypeScript rules
globs: "**/*.ts"
alwaysApply: false
---
# Rules

Use strict mode.