host_bash

A read-only shell skill for examining files and running diagnostic commands in a restricted environment. A shell is a text interface for operating-system commands.

In plain words
What is it for?
Use it to inspect directories, search files, check command output and diagnose problems while respecting read-only limits.
Why use it?
It helps investigate files and system behaviour without making changes to the machine.

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/ongridio/ongrid/bash
Any agent
npx skills add ongridio/ongrid --skill bash
Clone the repo
git clone --depth 1 https://github.com/ongridio/ongrid

Made for: Claude Code, Codex.

Per session 26 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,121 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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 $0.00026 $0.02121
Opus 5 $0.00013 $0.01060
Sonnet 5 $0.00005 $0.00424
Haiku 4.5 $0.00003 $0.00212

Measured 2d ago against content hash f0dcca83f9b6, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

host_bash 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.

• 网络探测 nc -z / curl --head / dig / ping(host 在 operator allowlist 内)
skills/bash/SKILL.md · 188 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

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. 2d ago First seen · 188 lines · 26 tokens per session scan A f0dcca83f9b6

Subscribe to this mod's changes

host_bash is a skill published in the GitHub repository ongridio/ongrid (933 stars, last pushed 4d ago), licensed AGPL-3.0. It adds 26 tokens to every session and 2,121 once invoked, about $0.0001 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 2026-08-30.