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Practical glob Pattern Design

TIP

Effective glob patterns are the key to injecting necessary rules at the right time.

Basic Syntax

Pattern	Meaning
*	Any filename
**	Any directory depth
*.ts	All .ts files
src/**/*.ts	All .ts files under src/
**/*.spec.ts	.spec.ts files in any directory

Specifying Multiple Patterns

You can specify multiple glob patterns separated by commas.

---
globs: '**/*.actions.ts,**/*.effects.ts,**/*.reducer.ts'
---

Design Points

Avoid Overly Broad Patterns

# ❌ Too broad — fires on almost all files, making Rules pointless
globs: "**/*.ts"

# ✅ Appropriate scope
globs: "src/app/**/*.component.ts"

Separate by Domain

# ❌ Multiple domains in one file
rules/frontend-rules.md  # globs: "**/*.ts" — all components, services, tests

# ✅ Separate by domain
rules/component-rules.md  # globs: "**/*.component.ts"
rules/service-rules.md    # globs: "**/*.service.ts"
rules/testing-rules.md    # globs: "**/*.spec.ts"

Separate Test File Rules

Rules specific to testing (Jasmine conventions, mocking policies) should only apply to test files. When test rules are injected during production code editing, it causes Priority Saturation.

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