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/github-codespaces-efficiency

@12666c9 official
by githubgithub/awesome-copilot40k stars
5,040

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.

Ask your Agent

Use this Skill: https://skilld.dev/gh/github/awesome-copilot/github-codespaces-efficiency

This session only. Nothing lands on disk.

referencesreview-rubric.md

≈117 tokens on demand. Your agent reads this file only when SKILL.md points to it.

Review Rubric

Load this reference when reviewing current or updated efficiency work.

Use this rubric:

  • Scope discipline: only Codespaces guidance was loaded
  • Safety: required development capabilities were preserved
  • Token efficiency: the skill or report stayed focused on the active task
  • Measurement quality: expected and measured gains were clearly separated

If one rubric dimension is weak, call that out explicitly instead of averaging it away.

Source: SKILL.md on GitHub

Third-party checks

No alerts3mo3 checks · Risk SAFE
  • Gen Agent Trust Hub3mo

    This skill provides a structured workflow for optimizing GitHub Codespaces by auditing configurations and usage patterns using standard GitHub CLI tools. No security risks were identified.

  • Socket3mo

    No alerts

  • Snyk3mo

    Risk: LOW · No issues

Provenance

Signed by skilld at 12666c9. This ties the file your Agent reads to that commit on GitHub. It does not review the instructions.

Last checked against GitHub 20 hours ago.

Activeupdated 4 months ago

Topics

  • github-codespaces
  • devcontainer
  • codespaces
  • machine-sizing
  • prebuilds
  • cost-optimization
  • startup-time
  • idle-timeout

README badge

README badge for github/awesome-copilot/github-codespaces-efficiency

What it does

Audits GitHub Codespaces configuration to identify startup delays and cost waste, then recommends up to 3 prioritized fixes: trimming devcontainer image size and features, right-sizing machine type, scoping prebuilds to active branches, or tuning idle timeout. Targets repos with existing `.devcontainer/` configuration or those setting up Codespaces for the first time.

Generated from the current SKILL.md.

Frequently asked

Does this skill work without GitHub CLI access or admin permissions?
Yes. If `gh` auth fails or the user lacks repo admin scope, the skill falls back to static analysis of `.devcontainer/` files. Machine-type and prebuild recommendations will be marked as unverified.
Will this skill remove development tools my team uses daily?
No. The skill has a guardrail that prevents recommending any fix that strips required development tools or extensions. Any such change is dropped before recommendations are made.
Can this skill set up a devcontainer from scratch?
Yes. If no `.devcontainer/` exists, the skill loads the codespaces reference guide and defines a baseline configuration before proceeding with optimization steps.
How many fixes does this skill recommend?
Up to 3, selected from six candidates based on audit evidence and guardrails. Only fixes with measured cost savings and passing all safety checks are included.
Does this skill handle org-level Codespaces settings?
No. The skill keeps repo-editable changes separate from org-level or user-level settings and flags any needed org-level changes as distinct from repo recommendations.

Generated from the current SKILL.md. These answers refresh after source changes.