---
title: "GitHub Codespaces Efficiency - Air Market"
description: "Your Codespace takes too long to start, or the monthly spend is higher than it should be. This goes through the setup and finds what to change: a slimmer container, a machine size that fits, an idle…"
canonical: "https://airmarket.ai/app/github-codespaces-efficiency"
---

[Air Market](/) / [Developer Tools](/category/devtools) / GitHub Codespaces Efficiency

Skill by [GitHub](/@github)

# GitHub Codespaces Efficiency

Waiting less and paying less for the machine you code in

## What this does

Your Codespace takes too long to start, or the monthly spend is higher than it should be. This goes through the setup and finds what to change: a slimmer container, a machine size that fits, an idle timeout that isn't wasteful, prebuilds only where they earn their keep.

### Top 3 things it does for you

- Speed up how long Codespaces takes to start
- Cut what we're spending on Codespaces
- Trim a devcontainer that's grown heavy

## Information

**GitHub Codespaces Efficiency at a glance**

|  |  |
| --- | --- |
| Kind | Skill |
| Publisher | [GitHub](/@github) |
| Category | [Developer Tools](/category/devtools) |
| Works with | Agent Skills - an open standard supported by 40+ agents |
| Size | 7 KB |
| Licence | MIT |
| Repository | [github/awesome-copilot](https://github.com/github/awesome-copilot/tree/8b1792d493d9f8f0a88d594eb23bb9196639ec3d/skills/github-codespaces-efficiency) |
| GitHub stars | 38,187 (as of Nov 2026) |
| Installs | 104, counted by skills.sh (Nov 2026) |

## Security report

**Verified.** AIR scanned this exact version of GitHub Codespaces Efficiency and flagged nothing. AIR's verdict: **safe**.

**What GitHub Codespaces Efficiency's check was run against**

|  |  |
| --- | --- |
| Commit | 8b1792d493d9f8f0a88d594eb23bb9196639ec3d |
| Content hash | 3d9cd032b966654ac144c03824abec68b644098ab8beabec28630aa3a7df9df1 |
| Files read | [Browse the files at this exact commit](https://github.com/github/awesome-copilot/blob/8b1792d493d9f8f0a88d594eb23bb9196639ec3d/skills/github-codespaces-efficiency/SKILL.md) |

A scan is named by the exact content it read, not by a version number. A different version is a different artifact, and nothing here applies to a version AIR has not scanned.

[Read the full security report for GitHub Codespaces Efficiency](/security/github-codespaces-efficiency)

## About GitHub Codespaces Efficiency

Audits GitHub Codespaces setup and suggests improvements to how it runs. It covers startup time, spend, slimming down devcontainers, right-sizing machines, tuning idle timeout, and scoping prebuilds to the branches that see sustained usage.

## What's inside

- SKILL.md - instructions
- references/codespaces.md - reference
- references/review-rubric.md - reference

## Questions

### Is GitHub Codespaces Efficiency safe to install?

AIR scanned this exact version of GitHub Codespaces Efficiency and flagged nothing. AIR's verdict: safe. The verdict is named by the content that was read, at commit 8b1792d493d9, so it cannot drift onto a version nobody scanned. The full report is at https://airmarket.ai/security/github-codespaces-efficiency.

### How do I install GitHub Codespaces Efficiency?

Open https://airmarket.ai/app/github-codespaces-efficiency on Air Market and use the install action: Air Market hands Claude a prompt naming this exact skill, and Claude sets it up. Source, pinned to the exact commit this listing describes: https://github.com/github/awesome-copilot/tree/8b1792d493d9f8f0a88d594eb23bb9196639ec3d/skills/github-codespaces-efficiency. Install from that link, not the branch.

## Related on Air Market

- [More Developer Tools listings](/category/devtools)
- [Everything by GitHub](/@github)

---

Canonical URL: <https://airmarket.ai/app/github-codespaces-efficiency>