feat(dms-mcp-server): add AWS DMS MCP server

[wchemz]

New MCP Server: AWS Database Migration Service (DMS)

Summary

Changes

Created a new MCP server providing comprehensive natural language access to AWS Database Migration Service (DMS) operations. The server includes 103 MCP tools covering the complete database migration lifecycle from discovery and planning through execution and monitoring.

Project Components:

• 103 MCP Tools organized into 18 functional categories
• Type-safe implementation using Pydantic models and FastMCP framework
• 10 specialized manager utilities for modular architecture
• Comprehensive documentation including README, CHANGELOG, and inline documentation
• Production-ready features: read-only mode, structured logging, error handling
• Docker support with multi-stage builds
• Complete test suite with pytest and moto mocking

User Experience

Before

Users managing AWS DMS database migrations had to:

• Use AWS Console for all DMS operations
• Write custom boto3 scripts for automation
• Manually coordinate multi-step migration workflows
• Switch between multiple AWS service consoles
• Maintain separate documentation for procedures
• Use CLI commands with complex parameter syntax

After

Users can now interact with AWS DMS entirely through natural language:

Example Use Cases:

• "Show me my DMS replication instances"
• "Create a MySQL to PostgreSQL migration task"
• "Test connection between my instance and endpoints"
• "Get table statistics for my running migration"
• "Start a Fleet Advisor database discovery"
• "Generate migration recommendations for my databases"

Comprehensive Coverage:

1. Traditional DMS Operations (59 tools) - Full CRUD for instances, endpoints, tasks, connections, assessments, certificates, subnet groups, events, maintenance
2. DMS Serverless (25 tools) - Complete serverless workflow including projects, providers, profiles, configurations, and migrations
3. Schema Conversion (15 tools) - Metadata model operations for database schema transformation
4. Database Discovery (9 tools) - Fleet Advisor automated database discovery and analysis
5. Smart Recommendations (4 tools) - AI-powered migration optimization suggestions

Users accomplish complex multi-step migrations through conversational commands without switching contexts or writing code.

Checklist

• I have reviewed the contributing guidelines
• I have performed a self-review of this change
• Changes have been tested
• Changes are documented

Is this a breaking change? No (N)

Acknowledgment

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of the project license.

[codecov]

Codecov Report

❌ Patch coverage is 28.93792% with 1385 lines in your changes missing coverage. Please review.
✅ Project coverage is 84.10%. Comparing base (9e37ce0) to head (5f8dd81).

Files with missing lines	Patch %	Lines
...erver/awslabs/aws_dms_mcp_server/tools_advanced.py	0.00%	204 Missing ⚠️
...abs/aws_dms_mcp_server/utils/serverless_manager.py	11.52%	192 Missing ⚠️
...slabs/aws_dms_mcp_server/utils/endpoint_manager.py	14.00%	129 Missing ⚠️
...r/awslabs/aws_dms_mcp_server/utils/task_manager.py	13.95%	111 Missing ⚠️
...aws_dms_mcp_server/utils/metadata_model_manager.py	18.80%	95 Missing ⚠️
.../awslabs/aws_dms_mcp_server/utils/event_manager.py	13.72%	88 Missing ⚠️
...abs/aws_dms_mcp_server/utils/assessment_manager.py	15.68%	86 Missing ⚠️
...mcp_server/utils/serverless_replication_manager.py	15.05%	79 Missing ⚠️
...slabs/aws_dms_mcp_server/utils/table_operations.py	15.05%	79 Missing ⚠️
...s_mcp_server/utils/replication_instance_manager.py	21.68%	65 Missing ⚠️
... and 8 more

❗ There is a different number of reports uploaded between BASE (9e37ce0) and HEAD (5f8dd81). Click for more details.

HEAD has 83 uploads less than BASE

Flag	BASE (9e37ce0)	HEAD (5f8dd81)
	124	41

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1473      +/-   ##
==========================================
- Coverage   89.50%   84.10%   -5.40%     
==========================================
  Files         730      558     -172     
  Lines       51334    43336    -7998     
  Branches     8167     6972    -1195     
==========================================
- Hits        45945    36447    -9498     
- Misses       3474     5366    +1892     
+ Partials     1915     1523     -392     

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