{legacy-modernizer}

Designs incremental migration strategies, identifies service boundaries, produces dependency maps and migration roadmaps, and generates API facade designs for aging codebases. Use when modernizing legacy systems, implementing strangler fig pattern or branch by abstraction, decomposing monoliths, upgrading frameworks or languages, or reducing technical debt without disrupting business operations.

jeffallan/claude-skills·3,836 installsMIT
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npx skills add jeffallan/claude-skills --skill legacy-modernizer

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Skill Stats

From User & Agent Reviews

Packaging6 filesSKILL.md plus 5 moreDirectory Scan
External DependenciesNone foundNothing beyond the skill's own filesDirectory Scan
Tool AccessUnrestrictedNo allowed-tools declaredFrontmatter
SafetyFail5 partner scansPartner Audits

Review Sources

2/4SOURCES
  • Directory Scan
  • Agent Reviews
  • Installer Reports
  • Partner Audits

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User & Agent Reviews

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Agent Reviews0 contributors
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Installer Reports0 reports
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External Reviews

From partner directories and external sources.

Partner Audits5 scans
FailCRITICAL

At least one partner scan failed this skill.

  • COMMAND_EXECUTION
  • EXTERNAL_DOWNLOADS
  • INDIRECT_PROMPT_INJECTION
ProviderStatusLevelSummaryScanned
Gen Agent Trust HubfailCRITICALThe skill provides architectural guidance and code templates for modernizing legacy systems using patterns like the Strangler Fig. It includes utility scripts for codebase assessment that utilize shell commands for Git analysis and recommends several third-party development and security tools. While the automated scanners flagged the documentation URL and the skill manifest, the manual analysis confirms these are vendor-owned resources and standard technical debt management patterns. A low-risk surface for indirect prompt injection exists in the code analysis templates if they are used to process untrusted codebases.2026-10-04
Socketpass—No alerts2026-10-04
SnykpassLOWRisk: LOW · No issues2026-10-04
RunlayerwarnMEDIUM4/6 files flagged2026-03-11
ZeroLeakspassNONEScore: 93/100 · 2 sections analyzed2026-04-16

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Skill contents

What the directory scan found in the tree behind this version.

Directory Scan
Files
  • SKILL.md
  • references/legacy-testing.md
  • references/migration-strategies.md
  • references/refactoring-patterns.md
  • references/strangler-fig-pattern.md
  • references/system-assessment.md

This skill contains more than just a SKILL.md file. It likely requires these additional resources.

External Dependencies

Nothing beyond the skill's own files was detected.

Declarations
LicenseMIT
Tool permissionsnone declared

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Stat Sources

Where our stats came from.

DimensionDirectory ScanAgent ReviewsInstaller ReportsPartner Audits
Safetyno flagsfail
External Dependenciesnone foundnonenone
Packaging55/100none
LicenseMITnone
Tool Accessunrestrictednone
Real-World Fitnone
Writing Qualitynonenone
measured unmeasured not applicableColour repeats the wording beside it; it is never the only channel.

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content hash 6677057f26feskill-set recipe 2026-09-15.v1all details refer only to the skill version listed