Individual skill
github-codespaces-efficiency
Audit and improve GitHub Codespaces efficiency. Use this skill when a user wants faster Codespaces startup, lower Codespaces spend, slim devcontainers, right-size machines, tune idle timeout, or scope prebuilds to branches with sustained usage.
skills/github-codespaces-efficiency/SKILL.md
Source commit edbecfa9099c4addae1f500cca1ac067204b30fd
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- Matches the observed repository HEAD
- Yes
- Scanner rules are current
- Yes
- Repository scan complete
- No
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- Observed behavior
- Network or broad shell
- Last checked
- Nov 4, 2026
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Repository context
- Repository stars (not skill ratings)
- 40,891
- Repository last updated
- Nov 6, 2026
- License
- MIT
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SKILL.mdcore · 4,688 bytesSKILL.mdcore · 4,688 bytesreferences/codespaces.mddoc · 2,122 bytesreferences/review-rubric.mddoc · 467 bytes
Read excerpt
# GitHub Codespaces Efficiency
Use this skill as a lean entrypoint for GitHub Codespaces efficiency work. Inspect the repo, identify waste, and load only needed references.
If no `.devcontainer/` exists yet, load [`references/codespaces.md`](./references/codespaces.md) and define a baseline before proceeding with the steps below.
## Use This Skill When
- The user wants faster Codespaces startup or lower Codespaces spend.
- The repo has a `.devcontainer/` or explicit Codespaces configuration questions.
- The user asks for devcontainer optimization, machine sizing, prebuild strategy, or idle-timeout guidance.
- The user is setting up Codespaces for the first time or needs help creating a new `.devcontainer/` from scratch.
## Load Only What You Need