prerequisites-checker

prerequisites-checker is an agent for coding agents from ksk-incom/MacInventory. It costs 219 tokens per session (847 once invoked), scanned A, original, no licence file.

An agent that checks whether the tools needed for MacInventory are available and reports the result in a simple summary.

In plain words
What is it for?
It is for checking system prerequisites at the beginning of the /inventory command.
Why use it?
It helps identify missing prerequisites before an inventory run starts.

Agent

Part of the macinventory plugin — 1 skill, 1 command, 5 agents shipped together

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 agents/ksk-incom/macinventory/prerequisites-checker
Clone the repo
git clone --depth 1 https://github.com/ksk-incom/MacInventory

Or install macinventory, the plugin that ships this one along with the rest of its 1 skill, 1 command, 5 agents.

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 prerequisites-checker

README.md
[![agentmods](https://agentmods.dev/badge/agents/ksk-incom/macinventory/prerequisites-checker.svg)](https://agentmods.dev/agents/ksk-incom/macinventory/prerequisites-checker)
Your own site
<a href="https://agentmods.dev/agents/ksk-incom/macinventory/prerequisites-checker"><img src="https://agentmods.dev/badge/agents/ksk-incom/macinventory/prerequisites-checker.svg" alt="Measured on agentmods" height="20"></a>
Per session 219 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 847 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 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 $0.00219 $0.00847
Opus 5 $0.00110 $0.00424
Sonnet 5 $0.00044 $0.00169
Haiku 4.5 $0.00022 $0.00085

Measured 4d ago against content hash 70fa78eebded, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

prerequisites-checker 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 4d 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.

macinventory/agents/prerequisites-checker.md · 138 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. 4d ago First seen · 138 lines · 219 tokens per session scan A 70fa78eebded

Subscribe to this mod's changes

prerequisites-checker is an agent published in the GitHub repository ksk-incom/MacInventory (5 stars, last pushed 7mo ago), with no licence file. It adds 219 tokens to every session and 847 once invoked, about $0.0011 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.