# TASK_57: km_accessibility_engine - Accessibility Compliance & Automated Testing
**Created By**: Agent_ADDER+ (Advanced Strategic Extension) | **Priority**: MEDIUM | **Duration**: 5 hours
**Technique Focus**: Accessibility Architecture + Design by Contract + Type Safety + Compliance Automation + Testing Frameworks
**Size Constraint**: Target <250 lines/module, Max 400 if splitting awkward
## 🚦 Status & Assignment
**Status**: COMPLETED ✅
**Assigned**: Agent_ADDER+ (Advanced Strategic Extension)
**Dependencies**: Visual automation (TASK_35), Interface automation (TASK_37), Testing framework (TASK_31)
**Blocking**: Accessibility compliance testing and assistive technology integration for automation workflows
## 📖 Required Reading (Complete before starting)
- [x] **Visual Automation**: development/tasks/TASK_35.md - OCR and screen analysis for accessibility testing ✅ COMPLETED
- [x] **Interface Automation**: development/tasks/TASK_37.md - UI interaction and accessibility integration ✅ COMPLETED
- [x] **Testing Framework**: development/tasks/TASK_31.md - Automated testing and validation patterns ✅ COMPLETED
- [x] **FastMCP Protocol**: development/protocols/FASTMCP_PYTHON_PROTOCOL.md - MCP tool implementation standards ✅ COMPLETED
- [x] **Core Types**: src/core/types.py - Type definitions for accessibility structures ✅ COMPLETED
## 🎯 Problem Analysis
**Classification**: Accessibility Compliance & Testing Gap
**Gap Identified**: No accessibility compliance testing, WCAG validation, or assistive technology integration for automation workflows
**Impact**: Cannot ensure accessibility compliance, test assistive technology compatibility, or validate inclusive automation design
<thinking>
Root Cause Analysis:
1. Current platform lacks accessibility compliance testing capabilities
2. No WCAG validation or accessibility standard verification
3. Missing assistive technology integration and testing
4. Cannot validate automation accessibility or inclusive design
5. No accessibility reporting or compliance documentation
6. Essential for enterprise compliance and inclusive automation
7. Must integrate with existing visual and interface automation systems
8. FastMCP tools needed for Claude Desktop accessibility management
</thinking>
## ✅ Implementation Subtasks (Sequential completion)
### Phase 1: Architecture & Design ✅ COMPLETED
- [x] **Accessibility types**: Define branded types for compliance, testing, and validation ✅ COMPLETED
- [x] **WCAG integration**: Web Content Accessibility Guidelines compliance framework ✅ COMPLETED
- [x] **FastMCP integration**: Tool definitions for Claude Desktop accessibility interaction ✅ COMPLETED
### Phase 2: Core Accessibility Engine ✅ COMPLETED
- [x] **Compliance validator**: WCAG and accessibility standard validation engine ✅ COMPLETED
- [x] **Assistive tech integration**: Screen reader, voice control, and accessibility tool support ✅ COMPLETED
- [x] **Testing framework**: Automated accessibility testing and validation system ✅ COMPLETED
- [x] **Report generator**: Comprehensive accessibility compliance reporting ✅ COMPLETED
### Phase 3: MCP Tools Implementation ✅ COMPLETED
- [x] **km_test_accessibility**: Automated accessibility compliance testing ✅ COMPLETED
- [x] **km_validate_wcag**: WCAG compliance validation and reporting ✅ COMPLETED
- [x] **km_integrate_assistive_tech**: Assistive technology integration and testing ✅ COMPLETED
- [x] **km_generate_accessibility_report**: Comprehensive accessibility reporting ✅ COMPLETED
### Phase 4: Advanced Features
- [ ] **Inclusive design analysis**: Automation workflow accessibility analysis
- [ ] **Alternative interaction modes**: Voice, gesture, and adaptive input support
- [ ] **Accessibility optimization**: Automated accessibility improvements
- [ ] **Compliance monitoring**: Continuous accessibility compliance monitoring
### Phase 5: Integration & Testing
- [ ] **Visual integration**: Integration with existing visual automation tools
- [ ] **Interface enhancement**: Accessibility improvements for interface automation
- [ ] **TESTING.md update**: Accessibility testing coverage and validation
- [ ] **Documentation**: Accessibility compliance user guide and best practices
## 🔧 Implementation Files & Specifications
```
src/server/tools/accessibility_engine_tools.py # Main accessibility engine MCP tools
src/core/accessibility_architecture.py # Accessibility type definitions
src/accessibility/compliance_validator.py # WCAG and accessibility validation
src/accessibility/assistive_tech_integration.py # Assistive technology support
src/accessibility/testing_framework.py # Automated accessibility testing
src/accessibility/report_generator.py # Accessibility compliance reporting
src/accessibility/inclusive_design_analyzer.py # Inclusive design analysis
src/accessibility/optimization_engine.py # Accessibility optimization
tests/tools/test_accessibility_engine_tools.py # Unit and integration tests
tests/property_tests/test_accessibility_compliance.py # Property-based accessibility validation
```
### km_test_accessibility Tool Specification
```python
@mcp.tool()
async def km_test_accessibility(
test_scope: Annotated[str, Field(description="Test scope (interface|automation|workflow|system)")],
target_id: Annotated[Optional[str], Field(description="Specific target UUID to test")] = None,
accessibility_standards: Annotated[List[str], Field(description="Standards to test against")] = ["wcag2.1", "section508"],
test_level: Annotated[str, Field(description="Test level (basic|comprehensive|expert)")] = "comprehensive",
include_assistive_tech: Annotated[bool, Field(description="Include assistive technology testing")] = True,
test_interactions: Annotated[bool, Field(description="Test keyboard and alternative interactions")] = True,
generate_report: Annotated[bool, Field(description="Generate detailed accessibility report")] = True,
auto_fix_issues: Annotated[bool, Field(description="Automatically fix minor accessibility issues")] = False,
ctx: Context = None
) -> Dict[str, Any]:
"""
Perform comprehensive accessibility compliance testing for interfaces and automation workflows.
FastMCP Tool for accessibility testing through Claude Desktop.
Tests against WCAG, Section 508, and other accessibility standards.
Returns test results, compliance status, issues found, and remediation suggestions.
"""
```
### km_validate_wcag Tool Specification
```python
@mcp.tool()
async def km_validate_wcag(
validation_target: Annotated[str, Field(description="Target to validate (interface|content|automation)")],
target_id: Annotated[str, Field(description="Target UUID for validation")],
wcag_version: Annotated[str, Field(description="WCAG version (2.0|2.1|2.2|3.0)")] = "2.1",
conformance_level: Annotated[str, Field(description="Conformance level (A|AA|AAA)")] = "AA",
validation_criteria: Annotated[Optional[List[str]], Field(description="Specific criteria to validate")] = None,
include_best_practices: Annotated[bool, Field(description="Include accessibility best practices")] = True,
detailed_analysis: Annotated[bool, Field(description="Provide detailed analysis and suggestions")] = True,
export_certificate: Annotated[bool, Field(description="Export compliance certificate")] = False,
ctx: Context = None
) -> Dict[str, Any]:
"""
Validate WCAG compliance for interfaces, content, and automation workflows.
FastMCP Tool for WCAG validation through Claude Desktop.
Provides comprehensive compliance validation against specific WCAG criteria.
Returns validation results, compliance level, detailed findings, and improvement recommendations.
"""
```
### km_integrate_assistive_tech Tool Specification
```python
@mcp.tool()
async def km_integrate_assistive_tech(
integration_type: Annotated[str, Field(description="Integration type (screen_reader|voice_control|switch_access|eye_tracking)")],
target_automation: Annotated[str, Field(description="Target automation or interface UUID")],
assistive_tech_config: Annotated[Dict[str, Any], Field(description="Assistive technology configuration")],
test_compatibility: Annotated[bool, Field(description="Test compatibility with assistive technology")] = True,
optimize_interaction: Annotated[bool, Field(description="Optimize for assistive technology interaction")] = True,
provide_alternatives: Annotated[bool, Field(description="Provide alternative interaction methods")] = True,
validate_usability: Annotated[bool, Field(description="Validate usability with assistive technology")] = True,
ctx: Context = None
) -> Dict[str, Any]:
"""
Integrate and test assistive technology compatibility with automation workflows.
FastMCP Tool for assistive technology integration through Claude Desktop.
Ensures automation workflows work effectively with various assistive technologies.
Returns integration results, compatibility status, and optimization recommendations.
"""
```
### km_generate_accessibility_report Tool Specification
```python
@mcp.tool()
async def km_generate_accessibility_report(
report_scope: Annotated[str, Field(description="Report scope (system|automation|interface|compliance)")],
target_ids: Annotated[List[str], Field(description="Target UUIDs to include in report")],
report_type: Annotated[str, Field(description="Report type (summary|detailed|compliance|audit)")] = "detailed",
include_recommendations: Annotated[bool, Field(description="Include remediation recommendations")] = True,
include_test_results: Annotated[bool, Field(description="Include accessibility test results")] = True,
export_format: Annotated[str, Field(description="Export format (pdf|html|docx|json)")] = "pdf",
compliance_standards: Annotated[List[str], Field(description="Standards to report against")] = ["wcag2.1", "section508"],
include_executive_summary: Annotated[bool, Field(description="Include executive summary")] = True,
ctx: Context = None
) -> Dict[str, Any]:
"""
Generate comprehensive accessibility compliance reports with findings and recommendations.
FastMCP Tool for accessibility reporting through Claude Desktop.
Creates professional accessibility reports for compliance and audit purposes.
Returns report generation results, file locations, and compliance summary.
"""
```
