bpmn-workflow

BPMN Workflow Skill

Generate BPMN 2.0 process diagrams from feature specifications, link them to Gherkin scenarios, and compose a system-wide workflow diagram.

When to Use

• After completing Ask mode (feature exploration) to visualize the flow
• When documenting system processes for stakeholders
• Before Plan mode to ensure all scenarios are captured
• When updating existing features with new scenarios

Prerequisites

• Feature has been explored in Ask mode with wireframes
• User flows have been identified
• API endpoints (if any) have been specified

Instructions

Phase 1: Gather Feature Context

Step 1.1: Check for existing .feature files

Glob docs/bpmn/features/**/*.feature

If found, parse existing scenarios:

CallMcpTool:
  server: "bpmn-mcp"
  toolName: "read-feature"
  arguments: { "featurePath": "docs/bpmn/features/{feature-id}/{feature-id}.feature" }

Step 1.2: If no .feature file exists, generate scenarios from:

• Ask mode wireframes (each screen = potential scenario)
• User flow descriptions
• API endpoints defined (CRUD operations = scenarios)
• Edge cases identified (error states, empty states)

Phase 2: Generate Gherkin (if needed)

If generating new scenarios, structure them as:

Feature: [Feature Name]
  As a [user type]
  I want to [action]
  So that [benefit]

  Scenario: [Happy path name]
    Given [precondition]
    When [action]
    Then [expected result]

  Scenario: [Error case name]
    Given [precondition]
    When [invalid action]
    Then [error handling]

Scenario naming conventions:

• Happy path: Successful [action], [Action] completes
• Validation: [Action] with invalid [field]
• Error: [Action] when [error condition]
• Edge: [Action] with [edge case]

Phase 3: Generate BPMN

Call the generate-bpmn MCP tool:

CallMcpTool:
  server: "bpmn-mcp"
  toolName: "generate-bpmn"
  arguments: {
    "featureId": "{feature-id}",
    "featureName": "{Feature Name}",
    "scenarios": [
      {
        "id": "{scenario-id}",
        "name": "{Scenario Name}",
        "steps": [
          { "keyword": "Given", "text": "{step text}" },
          { "keyword": "When", "text": "{step text}" },
          { "keyword": "Then", "text": "{step text}" }
        ]
      }
    ],
    "outputPath": "docs/bpmn/features/{feature-id}/{feature-id}.bpmn"
  }