cursor-rules-config

# Cursor Rules Config Configure project-specific AI behavior through Cursor's rules system. The modern approach uses `.cursor/rules/*.mdc` files; the legacy `.cursorrules` file is still supported but deprecated. ## Rules System Architecture ### Modern Project Rules (.cursor/rules/*.mdc) Each `.mdc` file contains YAML frontmatter followed by markdown content: ```yaml --- description: "Enforce TypeScript strict mode and functional patterns" globs: "src/**/*.ts,src/**/*.tsx" alwaysApply: false --- # TypeScript Standards - Use `const` over `let`, never `var` - Prefer pure functions over classes - All functions must have explicit return types - Use discriminated unions over enums ``` **Frontmatter fields:** | Field | Type | Purpose | |-------|------|---------| | `description` | string | Concise rule purpose (shown in Cursor UI) | | `globs` | string | Gitignore-style patterns for auto-attachment | | `alwaysApply` | boolean | `true` = always active; `false` = only when matching files referenced | ### Rule Types by `alwaysApply` + `globs` Combination | alwaysApply | globs | Behavior | |-------------|-------|----------| | `true` | empty | Always injected into every prompt | | `false` | set | Auto-attached when matching files are in context | | `false` | empty | Manual only -- reference with `@Cursor Rules` in chat | ### File Naming Convention Use kebab-case with `.mdc` extension. Names should describe the rule's scope: ``` .cursor/rules/ typescript-standards.mdc react-...