Investigate: composite actions vs. re-usable workflows #10

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1. woutdenolf commented on Mar 25, 2026

   

   woutdenolf

   on Mar 25, 2026

   Last edited by woutdenolf

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   LLM:

   Feature	Composite Action	Reusable Workflow
   Level	Step	Job / Workflow
   Can define jobs	❌	✅
   Matrix support	❌	✅
   Secrets handling	Limited	Full
   Use case	Small reusable logic	Full CI/CD pipelines
   Called via	uses: in steps	uses: in jobs

   • If it fits inside a single job step → use a composite action
   • If it involves multiple jobs or environments → use a reusable workflow

   Keep as reusable workflow if it:

   • Defines jobs (jobs:)
   • Uses runs-on
   • Has multiple jobs or dependencies
   • Uses matrix builds
   • Needs secrets or environments
   • Represents a full pipeline step (CI, release, deploy)

   👉 These cannot be composite actions by design

   👍React with 👍1Reacted by Loïc Huder
2. loichuder commented on Mar 25, 2026

   

   loichuder

   on Mar 25, 2026

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   Nice summary 👍
3. clarka34

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   on Oct 6, 2026
4. clarka34

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