agent-skills: Instructions file for Codex

AGENTS.md

This file provides guidance to AI coding agents (Claude Code, Cursor, Copilot, Antigravity, etc.) when working with code in this repository.

Repository Overview

A collection of skills for Claude.ai and Claude Code for senior software engineers. Skills are packaged instructions and scripts that extend Claude and your coding agents capabilities.

Creating a New Skill

Directory Structure

skills/
  {skill-name}/           # kebab-case directory name
    SKILL.md              # Required: skill definition
    scripts/              # Required: executable scripts
      {script-name}.sh    # Bash scripts (preferred)
  {skill-name}.zip        # Required: packaged for distribution

Naming Conventions

• Skill directory: kebab-case (e.g. web-quality)
• SKILL.md: Always uppercase, always this exact filename
• Scripts: kebab-case.sh (e.g., deploy.sh, fetch-logs.sh)
• Zip file: Must match directory name exactly: {skill-name}.zip

SKILL.md Format

---
name: {skill-name}
description: {One sentence describing when to use this skill. Include trigger phrases like "Deploy my app", "Check logs", etc.}
---

# {Skill Title}

{Brief description of what the skill does.}

## How It Works

{Numbered list explaining the skill's workflow}

## Usage

```bash
bash /mnt/skills/user/{skill-name}/scripts/{script}.sh [args]

Arguments:

• arg1 - Description (defaults to X)

Examples: {Show 2-3 common usage patterns}

Output

{Show example output users will see}

Present Results to User

{Template for how Claude should format results when presenting to users}

Troubleshooting

{Common issues and solutions, especially network/permissions errors}

### Best Practices for Context Efficiency

Skills are loaded on-demand — only the skill name and description are loaded at startup. The full `SKILL.md` loads into context only when the agent decides the skill is relevant. To minimize context usage:

- **Keep SKILL.md under 500 lines** — put detailed reference material in separate files
- **Write specific descriptions** — helps the agent know exactly when to activate the skill
- **Use progressive disclosure** — reference supporting files that get read only when needed
- **Prefer scripts over inline code** — script execution doesn't consume context (only output does)
- **File references work one level deep** — link directly from SKILL.md to supporting files