A set of design guidelines for command-line tools that coding agents run from a shell. It focuses on making those tools easier for agents to understand and use.

Use it when building, modifying, or reviewing a command-line tool intended to be called by coding agents.

It helps avoid command-line interfaces that are unclear or difficult for an agent to operate reliably. It provides conventions to follow when reviewing or changing an agent-facing CLI.

axi — Plugin for Claude Code by pleaseai/claude-code-plugins

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.

Clone the repo

git clone --depth 1 https://github.com/pleaseai/claude-code-plugins

Made for: Claude Code.

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.

README.md

[![agentmods](https://agentmods.dev/badge/plugins/pleaseai/claude-code-plugins/axi/github.svg)](https://agentmods.dev/plugins/pleaseai/claude-code-plugins/axi)

Your own site

<a href="https://agentmods.dev/plugins/pleaseai/claude-code-plugins/axi"><img src="https://agentmods.dev/badge/plugins/pleaseai/claude-code-plugins/axi/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/plugins/pleaseai/claude-code-plugins/axi"><img src="https://agentmods.dev/badge/plugins/pleaseai/claude-code-plugins/axi.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session not measured What this adds to a session before it is invoked.

When invoked not measured The manifest loads nothing itself; its 1 skill cost 38 tokens a session between them.

Security scan A 0 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.

Security

Grade A, and why

axi 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 1mo 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.

plugins/axi/.claude-plugin/plugin.json · 11 lines

What it actually says

{
  "name": "axi",
  "version": "1.2.2",
  "description": "Agent eXperience Interface (AXI) — ergonomic standards for building CLI tools that agents use via shell execution. Use when building, modifying, or reviewing any agent-facing CLI.",
  "license": "MIT",
  "keywords": [
    "axi"
  ],
  "skills": "./.agents/skills/"
}

Contents

What it installs

The manifest is a name and a version. 1 skill travel with it, and installing the plugin installs all of them — 38 tokens a session between them. Each is measured on its own page, and each can be installed alone.

Skill axi B 38 tokens

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.

1mo ago Changed 0b79c31d0a07
1mo ago First seen · 11 lines scan A 42f5ec46bfc5

Subscribe to this mod's changes

axi is a plugin published in the GitHub repository pleaseai/claude-code-plugins (16 stars, last pushed 5d ago), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. 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 2026-08-30.

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