DAA Claude Plugin

A Claude Code skills plugin that teaches the Declarative Action Architecture (DAA) — a strict three-layer separation pattern for E2E automation testing.

What is DAA?

Declarative Action Architecture (DAA) is a scalable design pattern for E2E automation testing framework that ensures reliability and clarity. For a deep dive into its philosophy and design, check out the original article:

👉 Declarative Action Architecture: A Scalable Pattern for E2E Automation

DAA enforces that tests are declarative, actions are self-verifying, and physical interactions are pure execution. This eliminates false positives and maximizes test maintainability.

Test Layer        →  "What" the user does (100% declarative, zero logic)
Action Layer      →  "How" it's done + verification (every action self-verifies its success)
Physical Layer    →  The mechanism (thin wrapper around HTTP client, Playwright, etc.)

Dependencies flow strictly downward: Test → Action → Physical. Layer skipping is never allowed.

Included Skills

Skill	Description
daa-core	Foundational principles, naming conventions (verb_object_and_verify_outcome), and anti-pattern catalog (AP-1 through AP-8)
daa-generate	Code generation rules per layer with a pre-output checklist to enforce DAA compliance
daa-review	38-item code review checklist with severity classification (CRITICAL / WARNING / SUGGESTION) and structured report format
daa-architect	Project scaffolding templates, scaling patterns (Builder, Adapter, Strategy, Chain), and POM-to-DAA migration guide
daa-install	Installs DAA knowledge base (docs/daa_rules/) into a project and updates CLAUDE.md, AGENTS.md, README.md with DAA rule pointers

Installation

/plugin marketplace add https://github.com/gigayaya/DAA-Master
/plugin install DAA-Master@DAA_Master

Usage

Once installed, the skills activate automatically based on context. You can also invoke them directly:

• Install DAA into a project: Use daa:daa-install to add DAA rules and knowledge base to your project
• Generate test code: Ask Claude to write E2E tests and it will follow DAA layer rules
• Review existing tests: Ask Claude to review your test code for DAA compliance
• Scaffold a project: Ask Claude to design a test automation framework structure
• Learn DAA: Ask Claude about DAA principles, naming conventions, or anti-patterns

Project Structure

skills/
├── daa-core/
│   ├── SKILL.md                # Core DAA principles
│   ├── naming-conventions.md   # verb_object_and_verify_outcome pattern
│   └── anti-patterns.md        # AP-1 through AP-8 violation catalog
├── daa-generate/
│   ├── SKILL.md                # Code generation overview + checklist
│   ├── test-layer.md           # Test Layer generation rules
│   ├── action-layer.md         # Action Layer generation rules
│   └── physical-layer.md       # Physical Layer generation rules
├── daa-review/
│   ├── SKILL.md                # Review process overview
│   ├── checklist.md            # 38-item review checklist (TL/AL/PL/CL codes)
│   ├── scoring.md              # DAA Score (1-10) rubric and report template
│   └── severity-guide.md       # CRITICAL/WARNING/SUGGESTION classification
├── daa-architect/
│   ├── SKILL.md                # Framework design overview
│   ├── project-scaffold.md     # Directory structure templates
│   └── scaling-patterns.md     # Builder, Adapter, Strategy, Chain patterns
└── daa-install/
    ├── SKILL.md                # Installation procedure
    └── templates/              # Content templates for target project
        ├── claude-md-section.md
        ├── agents-md-section.md
        ├── readme-md-section.md
        └── docs-daa-rules/     # Knowledge base files (7 files)

License

Apache License 2.0