github-airplane-mode

github-airplane-mode is a skill for Codex from vincentkoc/dotskills. It costs 56 tokens per session (902 once invoked), scanned A, original, MIT.

A local Git and GitHub download guard that can be inspected or switched between low-data and normal modes. It requires a compatible guard already installed on the machine and does not install one.

In plain words
What is it for?
Use it to check the guard's status, enable or disable airplane mode, or choose low-data protection automatically based on the connection.
Why use it?
It helps prevent unwanted or high-volume downloads while travelling or using a metered connection. It also avoids removing the reusable guard when returning online.

Skill for Codex

Written for Codex: agents/openai.yaml present.

Good fit Use it to check the guard's status, enable or disable airplane mode, or choose low-data protection automatically based on the connection.

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Install with agentmods
npx agentmods add skills/vincentkoc/dotskills/github-airplane-mode
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add vincentkoc/dotskills --skill github-airplane-mode
Clone the repo
git clone --depth 1 https://github.com/vincentkoc/dotskills

Made for: Codex.

Its marketplace also offers this one on its own, as the plugin github-airplane-mode/plugin install github-airplane-mode after adding the marketplace above.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for github-airplane-mode

README.md
[![agentmods](https://agentmods.dev/badge/skills/vincentkoc/dotskills/github-airplane-mode/github.svg)](https://agentmods.dev/skills/vincentkoc/dotskills/github-airplane-mode)
Your own site
<a href="https://agentmods.dev/skills/vincentkoc/dotskills/github-airplane-mode"><img src="https://agentmods.dev/badge/skills/vincentkoc/dotskills/github-airplane-mode/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for github-airplane-mode

Your own site · 80×15
<a href="https://agentmods.dev/skills/vincentkoc/dotskills/github-airplane-mode"><img src="https://agentmods.dev/badge/skills/vincentkoc/dotskills/github-airplane-mode.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 56 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 902 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00056 $0.00902
Opus 5 $0.00028 $0.00451
Sonnet 5 $0.00011 $0.00180
Haiku 4.5 $0.00006 $0.00090

Measured 2d ago against content hash 7f0fe50237ec, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

github-airplane-mode scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

requests, curl, package installs, and model traffic remain allowed.
skills/github-airplane-mode/SKILL.md · 106 lines

How it starts

The opening of the file, as written. The whole thing — 106 lines — stays where its author put it; the contents beside it link to each section on GitHub.

GitHub Airplane Mode

Purpose

Switch an already-installed local Git and GitHub download guard.

Keep the guard installed and active sessions intact. This skill does not bundle or install low-data, Git/GitHub wrappers, or a native connection-cost detector.

When to use

  • Enable protection before a flight or on a metered connection.
  • Disable protection after returning online.
  • Inspect the current policy or use automatic connection-cost detection.

Workflow

Verify the prerequisite

Operate only on the current machine. Require an already-installed compatible low-data command before running any recipe.

  1. Resolve command -v low-data and inspect its file or symlink target. Verify its trusted local source and the mode, status, and exit semantics below. Stop if it is missing, shadowed, unfamiliar, or incompatible; report the prerequisite instead of downloading or replacing it.
  2. Inspect the current state with env -u LOW_DATA_ALLOW_NETWORK low-data status.
  3. Apply only the requested mode. Interpret "I'm back", "return online", or "remove airplane mode" as off, not removal of the reusable guard.

Switch modes

# Inspect without a per-command override masking the saved policy.
env -u LOW_DATA_ALLOW_NETWORK low-data status

# Force protection for a flight or metered connection.
env -u LOW_DATA_ALLOW_NETWORK low-data on

# Explicitly disable protection after returning online.
env -u LOW_DATA_ALLOW_NETWORK low-data off

# Follow the native connection-cost detector.
env -u LOW_DATA_ALLOW_NETWORK low-data auto

Require these semantics: on forces protection; off explicitly disables it; auto protects constrained or expensive connections and fails closed when native status is unavailable. An unmetered connection is unprotected in auto.

Verify the result

After any change, run both checks with the override unset:

env -u LOW_DATA_ALLOW_NETWORK low-data status
if env -u LOW_DATA_ALLOW_NETWORK low-data active; then
  printf 'active_exit=0 (protected)\n'
else
  active_exit=$?
  printf 'active_exit=%s\n' "$active_exit"
fi

Read the full file on GitHub · 106 lines

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2d ago First seen · 106 lines · 56 tokens per session scan A 7f0fe50237ec

Subscribe to this mod's changes

github-airplane-mode is a skill published in the GitHub repository vincentkoc/dotskills (102 stars, last pushed today), licensed MIT. It adds 56 tokens to every session and 902 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-07.