bash-linux

A collection of Bash and Linux terminal patterns for macOS and Linux. Bash is a command-line shell used to run commands and scripts.

In plain words
What is it for?
Working with terminal commands, piping output, handling errors, and writing Bash scripts.
Why use it?
It helps an agent choose suitable commands, pipelines, error handling, and scripting patterns on Unix-like systems.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/trinhhaox/ag-kit/bash-linux
Any agent
npx skills add trinhhaox/ag-kit --skill bash-linux
Clone the repo
git clone --depth 1 https://github.com/trinhhaox/ag-kit

Made for: Claude Code, Codex.

Per session 29 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,296 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 2 findings. Scan, not verified.
Origin unknown 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 $0.00029 $0.01296
Opus 5 $0.00015 $0.00648
Sonnet 5 $0.00006 $0.00259
Haiku 4.5 $0.00003 $0.00130

Measured yesterday against content hash 17c0a0d75bf2, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade B, and why

bash-linux scanned grade B 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 yesterday.

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.

Sends data to an external URLmediumData exfiltration

A POST to an outside endpoint may be telemetry or may be exfiltration; either way the mod talks to somewhere, and you should know where.

| POST JSON | `curl -X POST -H "Content-Type: application/json" -d '{"key":"value"}' URL` |

Makes network callslowCapability

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

| Download | `curl -O https://example.com/file` |
skills/bash-linux/SKILL.md · 200 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. yesterday First seen · 200 lines · 29 tokens per session scan B 17c0a0d75bf2

Subscribe to this mod's changes

bash-linux is a skill published in the GitHub repository trinhhaox/ag-kit (1 stars, last pushed 26d ago), with no licence file. It adds 29 tokens to every session and 1,296 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it B with 2 findings (sends data to an external url, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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