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MicrosoftKnown publishermicrosoft/MicroHack/03-Azure/01-01-App Innovation/03_GHCPAppModernization/templates/skills/modernization-skill/SKILL.md

{{skill-name-kebab-case}}

Skill220 starsChanged 7 days agoMITView on GitHub

{{WHAT this skill does in one sentence.}} WHEN: {{trigger phrase 1}}, {{trigger phrase 2}}, {{trigger phrase 3}}, {{e.g. "upgrade .NET Framework to .NET 10", "migrate Struts to Spring MVC", "fix CVE vulnerabilities", "containerize legacy app"}}. NOT for: {{explicit exclusions — prevents false triggering, e.g. "greenfield development, infrastructure-only changes"}}.

The file

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SKILL.md
<!-- SKILL TEMPLATE — App Modernization knowledge package Copy to: <target-repo>/.github/skills/{{skill-name}}/SKILL.md Picked up by GitHub Copilot CLI (/skills list) and auto-matched by the modernize CLI against your prompt during `modernize plan create`. The `description` is the routing contract — invest most effort there. The skill name must be lowercase and hyphenated (no spaces) and match its folder name. Optional supporting files live next to this file (rulebooks, scripts, examples). -->

{{Skill Title — e.g. ".NET Framework → .NET 10 Migration Rules"}}

Purpose

{{1–2 sentences: what knowledge this skill packages and what outcome it enables.}}

Prerequisites

  • {{e.g. "Assessment report (ASSESSMENT.md) exists"}}
  • {{e.g. ".NET 10 SDK installed — verify with dotnet --list-sdks"}}

Procedure

Step 1 — {{e.g. "Detect the migration surface"}}

{{Concrete instructions. Prefer commands and decision tables over prose.}}

{{command or code example}}

Step 2 — {{e.g. "Apply transformation rules"}}

Source patternTarget patternNotes
{{e.g. WebForms .aspx}}{{e.g. Razor Pages}}{{caveat}}
{{e.g. javax.servlet.*}}{{e.g. jakarta.servlet.*}}{{caveat}}

Step 3 — {{e.g. "Verify"}}

  • {{verification item — e.g. "solution builds with zero warnings-as-errors"}}
  • {{verification item — e.g. "all tests in CI suite pass"}}

Common Pitfalls

  • ⚠️ {{pitfall + how to avoid — e.g. "binding redirects are not honored in .NET 10; delete them and use the SDK-style project resolution"}}
  • ⚠️ {{pitfall + how to avoid}}

References

  • {{Link to official migration guide / rulebook file in this folder}}
  • {{e.g. ./rules/breaking-changes.md (supporting file)}}

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