CLI Builder

by magnus919

CLI Builder is an AI Engineering skill for Claude Code, published by magnus919 in agent-skills.

10 stars0 forkson magnus919/agent-skillsAdded 2026/07/18+67% in starsRepository updated 2026/07/18

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Install in seconds

Install CLI Builder

Copy CLI Builder into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.

terminal

npx degit https://github.com/magnus919/agent-skills/tree/main/cli-builder ~/.claude/skills/cli-builder

Requires Node.js. Downloads this skill only — not the rest of the repository — into your Claude Code skills folder.

Without Node.js

git clone https://github.com/magnus919/agent-skills.git

Clones the whole repository, then copy the skill’s own directory into your skills folder yourself.

In this catalog

Source file: cli-builder/SKILL.md in magnus919/agent-skills
Installs to: ~/.claude/skills/cli-builder
Collection: One of 33 skills cataloged from this repository
Category: AI Engineering — 3670 skills

What CLI Builder does

Design or refactor CLI tools for AI agent consumption with patterns for non-interactive execution, machine-readable output, idempotent operations, and progressive help discovery.

CLI Builder is cataloged under AI Engineering on DirSkills. CLI Builder comes from a repository tagged agent-skills, agentskills, ai-agents, automation and llm.

Documentation

README

Excerpt

CLI Builder — Agent-Friendly Tool Design

Overview

A CLI tool is a contract between your code and the agent that calls it. Every design decision is part of that contract:

CLI Element	Contract Purpose
`--help` output	Schema — what the tool offers, what flags it accepts
Subcommand structure	API surface — the operations the agent can perform
`--json` output fields	Data contract — guaranteed keys and their types
Exit codes	Status signals — success, usage error, runtime failure
Stderr messages	Error contract — what went wrong and how to fix it
`--dry-run` output	Preview contract — what would happen

This is the opening of the README. Read the full README on GitHub.

Frequently asked about CLI Builder

What else does magnus919 publish alongside CLI Builder?
CLI Builder is one of 33 skills that DirSkills catalogs from magnus919/agent-skills, the repository it ships in. Its siblings there include ADR Authoring, API Design and Evolution and ARR CLI. Each one is a separate skill with its own page in this directory, installs the same way CLI Builder does, and is maintained by magnus919 in that same repository. The rest of the collection is listed on the magnus919/agent-skills page.
How does CLI Builder compare to other AI Engineering skills?
CLI Builder ranks #3661 by stars among the 3670 AI Engineering skills in this catalog. The most-starred ones next to it are Architecture Decision Records, AI-First Engineering and Agentic OS. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of CLI Builder against them. Open each page to compare what they document and how they install.