BMAD-METHOD/bmad-core/workflows/brownfield-service.yml

workflow:
  id: brownfield-service
  name: Brownfield Service/API Enhancement
  description: >-
    Agent workflow for enhancing existing backend services and APIs with new features,
    modernization, or performance improvements. Handles existing system analysis and safe integration.
  type: brownfield
  project_types:
    - service-modernization
    - api-enhancement
    - microservice-extraction
    - performance-optimization
    - integration-enhancement

  sequence:
    - step: service_analysis
     agent: architect
      action: analyze existing project and use task document-project
      creates: multiple documents per the document-project template
      notes: "Review existing service documentation, codebase, performance metrics, and identify integration dependencies."

    - agent: pm
      creates: brownfield-prd.md
      uses: brownfield-prd-tmpl
      requires: existing_service_analysis
      notes: "Creates comprehensive brownfield PRD focused on service enhancement with existing system analysis. SAVE OUTPUT: Copy final brownfield-prd.md to your project's docs/ folder."

    - agent: architect
      creates: brownfield-architecture.md
      uses: brownfield-architecture-tmpl
      requires: brownfield-prd.md
      notes: "Creates brownfield architecture with service integration strategy and API evolution planning. SAVE OUTPUT: Copy final brownfield-architecture.md to your project's docs/ folder."

    - agent: po
      validates: all_artifacts
      uses: po-master-checklist
      notes: "Validates all brownfield documents for service integration safety and API compatibility. May require updates to any document."

    - agent: various
      updates: any_flagged_documents
      condition: po_checklist_issues
      notes: "If PO finds issues, return to relevant agent to fix and re-export updated documents to docs/ folder."

    - workflow_end:
      action: move_to_ide
      notes: "All planning artifacts complete. Move to IDE environment to begin development. Explain to the user the IDE Development Workflow next steps: data#bmad-kb:IDE Development Workflow"

  flow_diagram: |
    ```mermaid
    graph TD
        A[Start: Service Enhancement] --> B[analyst: analyze existing service]
        B --> C[pm: brownfield-prd.md]
        C --> D[architect: brownfield-architecture.md]
        D --> E[po: validate with po-master-checklist]
        E --> F{PO finds issues?}
        F -->|Yes| G[Return to relevant agent for fixes]
        F -->|No| H[Move to IDE Environment]
        G --> E

        style H fill:#90EE90
        style C fill:#FFE4B5
        style D fill:#FFE4B5
    ```

  decision_guidance:
    when_to_use:
      - Service enhancement requires coordinated stories
      - API versioning or breaking changes needed
      - Database schema changes required
      - Performance or scalability improvements needed
      - Multiple integration points affected

  handoff_prompts:
    analyst_to_pm: "Service analysis complete. Create comprehensive brownfield PRD with service integration strategy."
    pm_to_architect: "Brownfield PRD ready. Save it as docs/brownfield-prd.md, then create the service architecture."
    architect_to_po: "Architecture complete. Save it as docs/brownfield-architecture.md. Please validate all artifacts for service integration safety."
    po_issues: "PO found issues with [document]. Please return to [agent] to fix and re-save the updated document."
    complete: "All brownfield planning artifacts validated and saved in docs/ folder. Move to IDE environment to begin development."