cli-developer
An agent skill by Jeffallan, from Jeffallan/claude-skills. Tags: automation, cli, design, developer-tools, documentation, web.
What it does
Use when building CLI tools, implementing argument parsing, or adding interactive prompts. Invoke for parsing flags and subcommands, displaying progress bars and spinners, generating bash/zsh/fish completion scripts, CLI design, shell completions, and cross-platform terminal applications using commander, click, typer, or cobra.
Install
With the skills CLI, which installs into Claude Code, Codex, Cursor and other agents:
npx skills add Jeffallan/claude-skills --skill cli-developer
Or copy the skill folder into Claude Code's skills directory by hand (~/.claude/skills for every project, or .claude/skills inside one):
git clone --depth 1 https://github.com/Jeffallan/claude-skills
cp -r claude-skills/skills/cli-developer ~/.claude/skills/cli-developer
Safety box score
Not rated yet. A safety box score grades what a skill and its scripts can reach on the machine of whoever installs it, across eight categories from shell execution to secrets access. Anyone can request one from this page; it is saved for everyone. How the score works.
Source
- Repository
- Jeffallan/claude-skills (all skills from this repository)
- Path
- skills/cli-developer/SKILL.md
- Branch
- main
- Updated
- 2026-09-19
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