install

install is a skill for Claude Code from Chemaclass/agnostic-ai. It costs 55 tokens per session (529 once invoked), scanned C, original, MIT.

An installation guide for the agnostic-ai command-line program, a tool operated by typing commands in a terminal. It chooses an installation method based on the computer and available software.

In plain words
What is it for?
Use it to install agnostic-ai on macOS, Linux, or Windows, or to prepare it before using other agnostic-ai skills.
Why use it?
It avoids manually finding the right download or installation route. It also checks whether agnostic-ai is already installed before doing anything.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the agnostic-ai plugin — 4 skills shipped together

Good fit Use it to install agnostic-ai on macOS, Linux, or Windows, or to…

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Install with agentmods
npx agentmods add skills/chemaclass/agnostic-ai/install
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 Chemaclass/agnostic-ai --skill install
Clone the repo
git clone --depth 1 https://github.com/Chemaclass/agnostic-ai

Made for: Claude Code.

Or install agnostic-ai, the plugin that ships this one along with the rest of its 4 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 install

README.md
[![agentmods](https://agentmods.dev/badge/skills/chemaclass/agnostic-ai/install.svg)](https://agentmods.dev/skills/chemaclass/agnostic-ai/install)
Your own site
<a href="https://agentmods.dev/skills/chemaclass/agnostic-ai/install"><img src="https://agentmods.dev/badge/skills/chemaclass/agnostic-ai/install.svg" alt="Measured on agentmods" height="20"></a>
Per session 55 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 529 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 2 findings. 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 $0.00055 $0.00529
Opus 5 $0.00028 $0.00264
Sonnet 5 $0.00011 $0.00106
Haiku 4.5 $0.00006 $0.00053

Measured 7d ago against content hash 94792406941d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade C, and why

install scanned grade C 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 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.

Downloads and executes remote codehighSupply chain

curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.

| macOS / Linux, no Homebrew | install script | `curl -fsSL https://raw.githubusercontent.com/Chemaclass/agnostic-ai/main/scripts/install.sh \| bash` |

Makes network callslowCapability

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

| macOS / Linux, no Homebrew | install script | `curl -fsSL https://raw.githubusercontent.com/Chemaclass/agnostic-ai/main/scripts/install.sh \| bash` |
plugins/agnostic-ai/skills/install/SKILL.md · 33 lines

What it actually says

install

Puts the agnostic-ai binary on PATH without asking the user to hunt for a release archive.

Steps

  1. Run agnostic-ai --version. If it prints a version, stop: it is installed. Report the version and offer agnostic-ai upgrade if the user asked for the newest.

  2. Detect the platform and pick the first route that applies:

    Platform Route Command
    macOS / Linux with Homebrew Homebrew brew install --cask Chemaclass/tap/agnostic-ai
    macOS / Linux, no Homebrew install script curl -fsSL https://raw.githubusercontent.com/Chemaclass/agnostic-ai/main/scripts/install.sh | bash
    Windows install script irm https://raw.githubusercontent.com/Chemaclass/agnostic-ai/main/scripts/install.ps1 | iex
    Any platform with Go Go go install github.com/chemaclass/agnostic-ai/cmd/agnostic-ai@latest

    Check for a tool with command -v brew / command -v go.

    winget, Scoop, and npm are wired into the release pipeline but not published yet, so winget install Chemaclass.agnostic-ai, scoop install agnostic-ai, and npx agnostic-ai all fail today. Do not offer them.

  3. Run the chosen command. Do not run more than one route. If it reports that no package matches, fall back to the install script for that platform, which reads straight from the repo.

  4. Verify with agnostic-ai --version.

  5. If the shell reports "command not found" right after a successful install, PATH has not been reloaded yet. Tell the user to open a new terminal. The install scripts print the directory they used.

Notes

  • The install scripts verify the download against the release checksums.txt. Do not replace them with a bare curl of the binary.
  • Already installed but out of date: agnostic-ai upgrade detects the original install method and prints the matching command. agnostic-ai upgrade --run executes it.
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 · 33 lines · 55 tokens per session scan C 94792406941d

Subscribe to this mod's changes

install is a skill published in the GitHub repository Chemaclass/agnostic-ai (11 stars, last pushed 2d ago), licensed MIT. It adds 55 tokens to every session and 529 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it C with 2 findings (downloads and executes remote code, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Related

Other skills, from other repositories