acc-check-immutability
Analyzes PHP code for immutability violations. Checks Value Objects, Events, DTOs for readonly properties, no setters, final classes, and wither patterns. Ensures domain objects maintain invariants.
Also installable via skills CLI
npx skills add dykyi-roman/awesome-claude-code/.claude/skills/acc-check-immutability
Source
Path:
.claude/skills/acc-check-immutability/SKILL.md(main)