15 KiB
BMAD Workflow Creation Guide
Create structured, repeatable workflows for human-AI collaboration in BMAD v6.
Table of Contents
- Quick Start
- Core Concepts
- Workflow Structure
- Writing Instructions
- Templates and Variables
- Flow Control
- Validation
- Examples
- Best Practices
- Troubleshooting
Quick Start
Minimal Workflow (3 minutes)
Create a folder with these files:
# workflow.yaml (REQUIRED)
name: 'my-workflow'
description: 'What this workflow does'
installed_path: '{project-root}/bmad/module/workflows/my-workflow'
template: '{installed_path}/template.md'
instructions: '{installed_path}/instructions.md'
default_output_file: '{output_folder}/output.md'
# template.md
# {{project_name}} Output
{{main_content}}
# instructions.md
<critical>The workflow execution engine is governed by: {project_root}/bmad/core/tasks/workflow.xml</critical>
<critical>You MUST have already loaded and processed: workflow.yaml</critical>
<workflow>
<step n="1" goal="Generate content">
Create the main content for this document.
<template-output>main_content</template-output>
</step>
</workflow>
That's it! To execute, tell the BMAD agent: workflow my-workflow
Core Concepts
Tasks vs Workflows
| Aspect | Task | Workflow |
|---|---|---|
| Purpose | Single operation | Multi-step process |
| Format | XML in .md file |
Folder with YAML config |
| Location | /src/core/tasks/ |
/bmad/*/workflows/ |
| User Input | Minimal | Extensive |
| Output | Variable | Usually documents |
Workflow Types
- Document Workflows - Generate PRDs, specs, architectures
- Action Workflows - Refactor code, run tools, orchestrate tasks
- Interactive Workflows - Brainstorming, meditations, guided sessions
- Autonomous Workflows - Run without human input (story generation)
- Meta-Workflows - Coordinate other workflows
Workflow Structure
Required Files
my-workflow/
└── workflow.yaml # REQUIRED - Configuration
Optional Files
my-workflow/
├── template.md # Document structure
├── instructions.md # Step-by-step guide
├── checklist.md # Validation criteria
└── [data files] # Supporting resources
workflow.yaml Configuration
# Basic metadata
name: 'workflow-name'
description: 'Clear purpose statement'
# Paths
installed_path: '{project-root}/bmad/module/workflows/name'
template: '{installed_path}/template.md' # or false
instructions: '{installed_path}/instructions.md' # or false
validation: '{installed_path}/checklist.md' # optional
# Output
default_output_file: '{output_folder}/document.md'
# Advanced options
autonomous: true # Skip user checkpoints
recommended_inputs: # Expected input docs
- input_doc: 'path/to/doc.md'
Common Patterns
Full Document Workflow (most common)
- Has: All 4 files
- Use for: PRDs, architectures, specs
Action Workflow (no template)
- Has: workflow.yaml + instructions.md
- Use for: Refactoring, tool orchestration
Autonomous Workflow (no interaction)
- Has: workflow.yaml + template + instructions
- Use for: Automated generation
Writing Instructions
Basic Structure
# instructions.md
<critical>The workflow execution engine is governed by: {project_root}/bmad/core/tasks/workflow.xml</critical>
<critical>You MUST have already loaded and processed: workflow.yaml</critical>
<workflow>
<step n="1" goal="Clear goal statement">
Instructions for this step.
<template-output>variable_name</template-output>
</step>
<step n="2" goal="Next goal" optional="true">
Optional step instructions.
<template-output>another_variable</template-output>
</step>
</workflow>
Step Attributes
n="X"- Step number (required)goal="..."- What the step accomplishes (required)optional="true"- User can skiprepeat="3"- Repeat N timesif="condition"- Conditional execution
Content Formats
Markdown Format (human-friendly):
<step n="1" goal="Define goals">
Write 1-3 bullet points about project success:
- User outcomes
- Business value
- Measurable results
<template-output>goals</template-output>
</step>
XML Format (precise control):
<step n="2" goal="Validate input">
<action>Load validation criteria</action>
<check if="validation fails">
<goto step="1">Return to previous step</goto>
</check>
<template-output>validated_data</template-output>
</step>
Templates and Variables
Variable Syntax
# template.md
# {{project_name}} Document
## Section
{{section_content}}
_Generated on {{date}}_
Variable Sources
- workflow.yaml - Config values
- User input - Runtime values
- Step outputs -
<template-output>tags - System - Date, paths, etc.
Naming Convention
- Use snake_case:
{{user_requirements}} - Be descriptive:
{{primary_user_journey}}not{{puj}}
Flow Control
Sub-Steps
<step n="3" goal="Process items">
<step n="3a" title="Gather data">
<action>Collect information</action>
</step>
<step n="3b" title="Analyze">
<action>Process collected data</action>
<template-output>analysis</template-output>
</step>
</step>
Repetition
<!-- Fixed repetitions -->
<step n="4" repeat="3">
<action>Generate example {{iteration}}</action>
</step>
<!-- Conditional repetition -->
<step n="5" repeat="until-approved">
<action>Generate content</action>
<ask>Satisfactory? (y/n)</ask>
</step>
<!-- For-each repetition -->
<step n="6" repeat="for-each-epic">
<action>Define epic {{epic_name}}</action>
</step>
Conditional Execution
Single Action (use action if=""):
<step n="6" goal="Load context">
<action if="file exists">Load existing document</action>
<action if="new project">Initialize from template</action>
</step>
Multiple Actions (use <check if="">...</check>):
<step n="7" goal="Validate">
<action>Check requirements</action>
<check if="incomplete">
<action>Log validation errors</action>
<goto step="2">Return to gathering</goto>
</check>
<check if="complete">
<action>Mark as validated</action>
<continue>Proceed</continue>
</check>
</step>
When to use which:
<action if="">- Single conditional action (cleaner, more concise)<check if="">...</check>- Multiple items under same condition (explicit scope)
Loops
<step n="8" goal="Refine">
<loop max="5">
<action>Generate solution</action>
<check if="criteria met">
<break>Exit loop</break>
</check>
</loop>
</step>
Common XML Tags
Execution:
<action>- Required action<action if="condition">- Single conditional action (inline)<check if="condition">...</check>- Conditional block for multiple items (requires closing tag)<ask>- User prompt<goto>- Jump to step<invoke-workflow>- Call another workflow
Output:
<template-output>- Save checkpoint<invoke-task halt="true">{project-root}/bmad/core/tasks/adv-elicit.xml</invoke-task>- Trigger AI enhancement<critical>- Important info<example>- Show example
Validation
checklist.md Structure
# Validation Checklist
## Structure
- [ ] All sections present
- [ ] No placeholders remain
- [ ] Proper formatting
## Content Quality
- [ ] Clear and specific
- [ ] Technically accurate
- [ ] Consistent terminology
## Completeness
- [ ] Ready for next phase
- [ ] Dependencies documented
- [ ] Action items defined
Making Criteria Measurable
❌ - [ ] Good documentation
✅ - [ ] Each function has JSDoc comments with parameters and return types
Examples
Document Generation
<workflow>
<step n="1" goal="Gather context">
Load existing documents and understand project scope.
<template-output>context</template-output>
</step>
<step n="2" goal="Define requirements">
Create functional and non-functional requirements.
<template-output>requirements</template-output>
<invoke-task halt="true">{project-root}/bmad/core/tasks/adv-elicit.xml</invoke-task>
</step>
<step n="3" goal="Validate">
Check requirements against goals.
<template-output>validated_requirements</template-output>
</step>
</workflow>
Action Workflow
<workflow>
<step n="1" goal="Analyze codebase">
<action>Find all API endpoints</action>
<action>Identify patterns</action>
</step>
<step n="2" goal="Refactor">
<repeat for-each="endpoint">
<action>Update to new pattern</action>
</repeat>
</step>
<step n="3" goal="Verify">
<action>Run tests</action>
<check if="tests fail">
<goto step="2">Fix issues</goto>
</check>
</step>
</workflow>
Meta-Workflow
<workflow name="greenfield-app">
<step n="1" goal="Discovery">
<invoke-workflow>product-brief</invoke-workflow>
<template-output>brief</template-output>
</step>
<step n="2" goal="Requirements">
<invoke-workflow input="{{brief}}">prd</invoke-workflow>
<template-output>prd</template-output>
</step>
<step n="3" goal="Architecture">
<invoke-workflow input="{{prd}}">architecture</invoke-workflow>
<template-output>architecture</template-output>
</step>
</workflow>
Best Practices
Design Principles
- Keep steps focused - Single goal per step
- Limit scope - 5-10 steps maximum
- Build progressively - Start simple, add detail
- Checkpoint often - Save after major sections
- Make sections optional - Let users skip when appropriate
Instruction Guidelines
- Be specific - "Write 1-2 paragraphs" not "Write about"
- Provide examples - Show expected output format
- Set limits - "3-5 items maximum"
- Explain why - Context helps AI make better decisions
Conditional Execution Best Practices
✅ DO:
- Use
<action if="">for single conditional actions - Use
<check if="">...</check>for blocks with multiple items - Always close
<check>tags explicitly - Keep conditions simple and readable
❌ DON'T:
- Wrap single actions in
<check>blocks (unnecessarily verbose) - Forget to close
<check>tags - Nest too many levels (makes logic hard to follow)
Examples:
<!-- ✅ Good: Single action -->
<action if="file exists">Load configuration</action>
<!-- ❌ Avoid: Unnecessary wrapper for single action -->
<check if="file exists">
<action>Load configuration</action>
</check>
<!-- ✅ Good: Multiple actions in block -->
<check if="validation fails">
<action>Log error details</action>
<action>Notify user</action>
<goto step="1">Retry input</goto>
</check>
Common Pitfalls
- Missing critical headers - Always include workflow engine references
- Variables not replaced - Ensure names match exactly
- Too many steps - Combine related actions
- No checkpoints - Add
<template-output>tags - Vague instructions - Be explicit about expectations
- Unclosed check tags - Always close
<check if="">...</check>blocks - Wrong conditional pattern - Use
<action if="">for single items,<check if="">for blocks
Web Bundles
Web bundles allow workflows to be deployed as self-contained packages for web environments.
When to Use Web Bundles
- Deploying workflows to web-based AI platforms
- Creating shareable workflow packages
- Ensuring workflow portability without dependencies
- Publishing workflows for public use
Web Bundle Requirements
- Self-Contained: No external dependencies
- No Config Variables: Cannot use
{config_source}references - Complete File List: Every referenced file must be listed
- Relative Paths: Use
bmad/root paths (no{project-root})
Creating a Web Bundle
Add this section to your workflow.yaml:
web_bundle:
name: 'workflow-name'
description: 'Workflow description'
author: 'Your Name'
# Core files (bmad/-relative paths)
instructions: 'bmad/module/workflows/workflow/instructions.md'
validation: 'bmad/module/workflows/workflow/checklist.md'
template: 'bmad/module/workflows/workflow/template.md'
# Data files (no config_source allowed)
data_file: 'bmad/module/workflows/workflow/data.csv'
# Complete file list - CRITICAL!
web_bundle_files:
- 'bmad/module/workflows/workflow/instructions.md'
- 'bmad/module/workflows/workflow/checklist.md'
- 'bmad/module/workflows/workflow/template.md'
- 'bmad/module/workflows/workflow/data.csv'
# Include ALL referenced files
Converting Existing Workflows
-
Remove Config Dependencies:
- Replace
{config_source}:variablewith hardcoded values - Convert
{project-root}/bmad/tobmad/
- Replace
-
Inventory All Files:
- Scan instructions.md for file references
- Check template.md for includes
- List all data files
-
Test Completeness:
- Ensure no missing file references
- Verify all paths are relative to bmad/
Example: Complete Web Bundle
web_bundle:
name: 'analyze-requirements'
description: 'Requirements analysis workflow'
author: 'BMad Team'
instructions: 'bmad/bmm/workflows/analyze-requirements/instructions.md'
validation: 'bmad/bmm/workflows/analyze-requirements/checklist.md'
template: 'bmad/bmm/workflows/analyze-requirements/template.md'
# Data files
techniques_data: 'bmad/bmm/workflows/analyze-requirements/techniques.csv'
patterns_data: 'bmad/bmm/workflows/analyze-requirements/patterns.json'
# Sub-workflow reference
validation_workflow: 'bmad/bmm/workflows/validate-requirements/workflow.yaml'
web_bundle_files:
# Core workflow files
- 'bmad/bmm/workflows/analyze-requirements/instructions.md'
- 'bmad/bmm/workflows/analyze-requirements/checklist.md'
- 'bmad/bmm/workflows/analyze-requirements/template.md'
# Data files
- 'bmad/bmm/workflows/analyze-requirements/techniques.csv'
- 'bmad/bmm/workflows/analyze-requirements/patterns.json'
# Sub-workflow and its files
- 'bmad/bmm/workflows/validate-requirements/workflow.yaml'
- 'bmad/bmm/workflows/validate-requirements/instructions.md'
- 'bmad/bmm/workflows/validate-requirements/checklist.md'
# Shared templates referenced in instructions
- 'bmad/bmm/templates/requirement-item.md'
- 'bmad/bmm/templates/validation-criteria.md'
Troubleshooting
Variables Not Replaced
- Check exact name match
- Verify
<template-output>tag present - Ensure step generates the variable
Validation Fails
- Review checklist specificity
- Check for impossible requirements
- Verify checklist matches template
Workflow Too Long
- Combine related steps
- Make sections optional
- Reduce elicitation points
User Confusion
- Add clearer step goals
- Provide more examples
- Explain section purpose
For implementation details, see:
/src/core/tasks/workflow.xml- Execution engine/bmad/bmm/workflows/- Production examples