T-Minus-15 Claude Plugins

AI agents implementing 'T-Minus-15: Secrets of an Elite DevOps Team' — the Prep → Design → Engineer → Test → Operate methodology with quality gates, structured work items (Epics, Features, User Stories with AMP criteria), and cross-functional collaboration.

Learn more: T-Minus-15 Book

Meet the Team

Agent	Role	Command	Phase
Poppie	Planner	/plan	Planning & orchestration
Pennie	Prepper	/prep	Requirements & backlog
Dannie	Designer	/design	UX/UI & brand guidelines
Ernie	Engineer	/engineer	Code implementation
Archie	Architect	/vet	Code review & architecture
Teddie	Tester	/test	E2E tests & QA
Ollie	Operator	/operate	Deployment & monitoring
Connie	Copywriter	/copy	Documentation quality

Installation

/plugin marketplace add T-Minus-15/claude-plugins
/plugin install t-minus-15

Skills

Work Items

Skill	Description
/epic	Epics with lean business case
/feature	Features with MoSCoW prioritization
/user-story	User Stories with AMP acceptance criteria
/bug	Bug reports
/enhancement	Enhancement requests
/task	Task work items
/risk	Risk management
/issue	Issue tracking
/question	Questions requiring answers

Development

Skill	Description
/e2e-tests	Playwright E2E test management
/pr-review	Code review workflows
/tech-stack	Default technology stack
/documentation	Standard docs structure
/brand-guidelines	Extract/create brand guidelines
/wireframe	ASCII wireframe components
/lean-business-case	Business case for Epics
/reflect	Continuous improvement

Default Technology Stack

The tech-stack skill defines our default stack for web applications, optimised for AI-assisted development:

Technology	Purpose
Bun	Package manager (5-10x faster than npm)
Next.js 15	App Router with Fast Refresh
TypeScript 5	Strict mode for AI accuracy
React 19	Server Components
Tailwind CSS 4	Utility-first CSS
shadcn/ui	Customisable components
Vitest + Playwright	Fast testing
NextAuth.js v5	Flexible authentication

Note: Agents will confirm technology choices before implementing.

Optional Enhancements

These plugins and MCP servers enhance agent capabilities but are not required:

Plugins

Plugin	Agents	Description
frontend-design	Dannie, Ernie	Production-grade frontend interfaces with high design quality
code-simplifier	Ernie, Archie	Code simplification and quality improvements

Install with:

/plugin install frontend-design
/plugin install code-simplifier

MCP Servers

MCP Server	Agents	Description
Playwright	Teddie	Interactive browser automation for E2E testing

Install Playwright MCP:

npx @anthropic/claude-code mcp add playwright -- npx @anthropic/mcp-server-playwright

Agents will prompt you to install these when relevant functionality is needed.

Repository Structure

/t-minus-15-team/      # Plugin folder
  plugin.json          # Plugin configuration
  agents/*.md          # Agent definitions
  commands/*.md        # Slash commands
  skills/*.md          # Skill definitions
/.claude-plugin/       # Marketplace config

Agents

Agent	Command	Description
Poppie the Planner	/plan	Planning & orchestration
Pennie the Prepper	/prep	Requirements & backlog
Dannie the Designer	/design	UX/UI & brand guidelines
Ernie the Engineer	/engineer	Code implementation
Archie the Architect	/vet	Code review & architecture
Teddie the Tester	/test	E2E tests & QA
Ollie the Operator	/operate	Deployment & monitoring
Connie the Copywriter	/copy	Documentation quality

Platforms

Supports both GitHub and Azure DevOps:

• PRs: gh pr / az repos pr
• Work Items: GitHub Issues / Azure DevOps Work Items
• Pipelines: GitHub Actions / Azure Pipelines

License

MIT