framework-migration-legacy-modernize - Legacy system modernization using strangler fig pattern
Orchestrate legacy system modernization using strangler fig pattern to replace outdated components gradually while maintaining continuous business operations.
Tags
Updated: 2026-09-23Capabilities
Typical Inputs
Typical Outputs
What this skill does
- Analyze legacy codebase
- Map dependencies and integrations
- Assess business impact and risks
- Establish characterization test coverage
- Implement contract testing
- Configure strangler fig infrastructure
- Modernize components incrementally
- Audit and harden security
- Optimize system performance
- Execute progressive traffic rollout
- Decommission replaced legacy components
- Generate system modernization documentation
Inputs
- Legacy codebase
- System constraints and goals
- Implementation playbook
Outputs
- Modernization readiness and risk report
- Dependency map and integration catalog
- Characterization and contract test suites
- API gateway configuration and feature flags
- Modernized application components
- Security audit and performance reports
- Decommissioning checklist and migration documentation
Requirements
- Task tool with subagent support
- Access to legacy codebase
