anti-sleep

anti-sleep is a skill for Claude Code from sendralt/agentic-awesome-skills. It costs 22 tokens per session (892 once invoked), scanned A, a copy of anti-sleep, MIT.

A guide to using macOS's built-in caffeinate command to keep a Mac awake during long-running work.

In plain words
What is it for?
It is for keeping the display or system awake for a set time or while a command such as a build is running.
Why use it?
It prevents sleep from interrupting builds, downloads, or supervised automation runs.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: mentions Codex.

Part of the agentic-awesome-skills plugin — 196 skills shipped together

Good fit It is for keeping the display or system awake for a set time or while a command such as a build is running.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/sendralt/agentic-awesome-skills/anti-sleep
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 sendralt/agentic-awesome-skills --skill anti-sleep
Clone the repo
git clone --depth 1 https://github.com/sendralt/agentic-awesome-skills

Made for: Claude Code.

Or install agentic-awesome-skills, the plugin that ships this one along with the rest of its 196 skills.

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 anti-sleep

README.md
[![agentmods](https://agentmods.dev/badge/skills/sendralt/agentic-awesome-skills/anti-sleep/github.svg)](https://agentmods.dev/skills/sendralt/agentic-awesome-skills/anti-sleep)
Your own site
<a href="https://agentmods.dev/skills/sendralt/agentic-awesome-skills/anti-sleep"><img src="https://agentmods.dev/badge/skills/sendralt/agentic-awesome-skills/anti-sleep/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 anti-sleep

Your own site · 80×15
<a href="https://agentmods.dev/skills/sendralt/agentic-awesome-skills/anti-sleep"><img src="https://agentmods.dev/badge/skills/sendralt/agentic-awesome-skills/anti-sleep.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 22 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 892 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 100% copy Near-identical to another mod 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 $0.00022 $0.00892
Opus 5 $0.00011 $0.00446
Sonnet 5 $0.00004 $0.00178
Haiku 4.5 $0.00002 $0.00089

Measured 7d ago against content hash d5331644b4a4, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

anti-sleep scanned grade A with 0 findings 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 7d 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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

100% identical to anti-sleep — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

plugins/agentic-awesome-skills-claude/skills/anti-sleep/SKILL.md · 91 lines

How it starts

The opening of the file, as written. The whole thing — 91 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Anti-Sleep (macOS caffeinate)

When to Use

  • Use when the user wants the Mac to stay awake during a long supervised task.
  • Use when a build, download, or automation run should not be interrupted by sleep.

Keep the Mac awake using the built-in caffeinate command. No install needed.

Quick start — the standard command

caffeinate -d -i -t 7200    # full power: screen stays on + no idle sleep, for 2 hours

Duration is -t <seconds>: 2h = 7200, 7h = 25200, overnight (9h) = 32400.

Aggressiveness levels

Flags Effect
-i prevents idle system sleep only (screen may still dim/lock)
-d prevents display sleep (screen stays on)
-d -i default choice — screen on + system awake
-d -i -s adds -s: prevents sleep even on AC power semantics; -s only works when plugged in
-u -t 1 simulates user activity — wakes the display right now

Default to -d -i -t <seconds> unless the user says otherwise.

Tie to a process instead of a timer

caffeinate -d -i -w <PID>          # stays awake until that process exits (great for builds)
caffeinate -i npm run build       # wraps a command; exits when the command finishes

Run it in a visible terminal (cmux pane)

Prefer running it in the user's own terminal pane so it's visible and easy to Ctrl+C. In cmux (read the cmux skill first if interacting with panes):

cmux send --surface surface:<N> "caffeinate -d -i -t 25200\n"

Otherwise run it as a background Bash task. Never block your own foreground shell with it.

Verify and monitor

pgrep -fl caffeinate                       # is it running? shows exact flags
ps -o etime= -p <PID>                      # how long it's been running
pmset -g assertions | grep -i deny        # confirm sleep assertions are active

Gotcha: caffeinate prints nothing and holds the prompt — it looks "stuck" or like Enter wasn't pressed. It isn't stuck. Verify with pgrep, not by looking at the terminal.

Read the full file on GitHub · 91 lines

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. 7d ago First seen · 91 lines · 22 tokens per session scan A d5331644b4a4

Subscribe to this mod's changes

anti-sleep is a skill published in the GitHub repository sendralt/agentic-awesome-skills (1 stars, last pushed 3d ago), licensed MIT. It adds 22 tokens to every session and 892 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to anti-sleep, differing in 0 lines, and is treated as a copy.