# Patterns

Reusable canon patterns live here.

## PracticePattern language

PracticePatterns give recurring socio-technical practices stable, speakable
names. They follow the Alexander-inspired, Markdown-first contract in
[PracticePatternScheme](PracticePatternScheme.md). The current scheme is v0.1;
frontmatter is described by
[`practice-pattern.schema.yaml`](../schemas/practice-pattern.schema.yaml).

| PracticePattern | Status | Purpose |
| --- | --- | --- |
| [InterfaceDeprecationStrangler](InterfaceDeprecationStrangler.md) | active | Phase out an interface through caller guidance, usage evidence, staged retirement, and an evidence-gated removal. |

The older [Intent Scope Purposes Pattern](intent-scope-purposes.md) predates the
PracticePattern v0.1 contract. It remains a candidate canon pattern and can be
migrated when its next substantive revision is made.