ai-native-cli

ai-native-cli is a skill for Claude Code, Codex from pinkpixel-dev/skills-collection-1. It costs 44 tokens per session (3,489 once invoked), scanned A, a copy of ai-native-cli, Apache-2.0.

A 98-rule design specification for command-line tools that AI agents can use safely and reliably. A command-line tool is a program operated through a terminal rather than a graphical interface.

In plain words
What is it for?
Use it to build a new agent-facing command-line tool, adapt an existing one for automation, define input validation and safety rules, or check whether a CLI meets the specification.
Why use it?
It addresses common automation problems such as unclear inputs, inconsistent output, weak error handling, unsafe actions, and ambiguous exit codes. It also defines ways for a tool to describe itself and return structured JSON data.

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/pinkpixel-dev/skills-collection-1/ai-native-cli
Any agent
npx skills add pinkpixel-dev/skills-collection-1 --skill ai-native-cli
Clone the repo
git clone --depth 1 https://github.com/pinkpixel-dev/skills-collection-1

Made for: Claude Code, Codex.

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 ai-native-cli

README.md
[![agentmods](https://agentmods.dev/badge/skills/pinkpixel-dev/skills-collection-1/ai-native-cli.svg)](https://agentmods.dev/skills/pinkpixel-dev/skills-collection-1/ai-native-cli)
Your own site
<a href="https://agentmods.dev/skills/pinkpixel-dev/skills-collection-1/ai-native-cli"><img src="https://agentmods.dev/badge/skills/pinkpixel-dev/skills-collection-1/ai-native-cli.svg" alt="Measured on agentmods" height="20"></a>
Per session 44 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,489 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 95% copy Near-identical to another mod 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 $0.00044 $0.03489
Opus 5 $0.00022 $0.01744
Sonnet 5 $0.00009 $0.00698
Haiku 4.5 $0.00004 $0.00349

Measured 5d ago against content hash 0aab4f3107d4, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

ai-native-cli 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 5d 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.

Origin

This is a copy

95% identical to ai-native-cli — 5 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

SKILLS/ai-native-cli/SKILL.md · 311 lines

How it starts

The opening of the file, as written. The whole thing — 311 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Agent-Friendly CLI Spec v0.1

When building or modifying CLI tools, follow these rules to make them safe and reliable for AI agents to use.

Overview

A comprehensive design specification for building AI-native CLI tools. It defines 98 rules across three certification levels (Agent-Friendly, Agent-Ready, Agent-Native) with prioritized requirements (P0/P1/P2). The spec covers structured JSON output, error handling, input contracts, safety guardrails, exit codes, self-description, and a feedback loop via a built-in issue system.

When to Use This Skill

  • Use when building a new CLI tool that AI agents will invoke
  • Use when retrofitting an existing CLI to be agent-friendly
  • Use when designing command-line interfaces for automation pipelines
  • Use when auditing a CLI tool's compliance with agent-safety standards

Core Philosophy

  1. Agent-first -- default output is JSON; human-friendly is opt-in via --human
  2. Agent is untrusted -- validate all input at the same level as a public API
  3. Fail-Closed -- when validation logic itself errors, deny by default
  4. Verifiable -- every rule is written so it can be automatically checked

Layer Model

This spec uses two orthogonal axes:

  • Layer answers rollout scope: core, recommended, ecosystem
  • Priority answers severity: P0, P1, P2

Use layers for migration and certification:

  • core -- execution contract: JSON, errors, exit codes, stdout/stderr, safety
  • recommended -- better machine UX: self-description, explicit modes, richer schemas
  • ecosystem -- agent-native integration: agent/, skills, issue, inline context

Certification maps to layers:

  • Agent-Friendly -- all core rules pass
  • Agent-Ready -- all core + recommended rules pass
  • Agent-Native -- all layers pass

How It Works

Step 1: Output Mode

Default is agent mode (JSON). Explicit flags to switch:

$ mycli list              # default = JSON output (agent mode)
$ mycli list --human      # human-friendly: colored, tables, formatted
$ mycli list --agent      # explicit agent mode (override config if needed)

Read the full file on GitHub · 311 lines

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. 5d ago First seen · 311 lines · 44 tokens per session scan A 0aab4f3107d4

Subscribe to this mod's changes

ai-native-cli is a skill published in the GitHub repository pinkpixel-dev/skills-collection-1 (7 stars, last pushed 26d ago), licensed Apache-2.0. It adds 44 tokens to every session and 3,489 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 95% identical to ai-native-cli, differing in 5 lines, and is treated as a copy.

Related

Other skills, from other repositories

agent-memory-mcp

A hybrid memory system that provides persistent, searchable knowledge management for AI agents (Architecture, Patterns, Decisions).

lingxling/awesome-skills-cn · 26 tokens

find-awesome-tools

Discovers curated tools, libraries, frameworks, and resources across thousands of awesome-lists. Use this skill whenever the user is shopping for options in a technology space — "what are good Rust CLI argument parsers", "recommend React state management libraries", "popular Python web frameworks", "tools for building…

bh-rat/context-awesome · 195 tokens

claude-api

Reference for the Claude API / Anthropic SDK — model ids, pricing, params, streaming, tool use, MCP, agents, caching, token counting, model migration. TRIGGER — read BEFORE opening the target file; don't skip because it "looks like a one-liner" — whenever: the prompt names Claude/Anthropic in any form (Claude…

lingxling/awesome-skills-cn · 294 tokens

docx

Use this skill whenever the user wants to create, read, edit, or manipulate Word documents (.docx files). Triggers include: any mention of 'Word doc', 'word document', '.docx', or requests to produce professional documents with formatting like tables of contents, headings, page numbers, or letterheads. Also use when…

lingxling/awesome-skills-cn · 168 tokens

algorithmic-art

Creating algorithmic art using p5.js with seeded randomness and interactive parameter exploration. Use this when users request creating art using code, generative art, algorithmic art, flow fields, or particle systems. Create original algorithmic art rather than copying existing artists' work to avoid copyright…

lingxling/awesome-skills-cn · 62 tokens

add-app-clip

Add an iOS App Clip target to an Expo app. Use when the user mentions App Clip, AASA, apple-app-site-association, appclips, smart app banner, or wants to ship a lightweight iOS Clip invoked from a URL alongside their parent app.

lingxling/awesome-skills-cn · 59 tokens