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Agent skill

Skill Add

by clacky-ai in clacky-ai/openclacky

Install skills from a zip URL or local zip file path. An agent skill from clacky-ai/openclacky.

MITAuto-check passedAgent Workflows

Install Skill Add

skills CLI
$ npx skills add clacky-ai/openclacky --skill skill-add -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install clacky-ai/openclacky skill-add --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/clacky-ai/openclacky.git skills-src && mkdir -p .claude/skills && cp -r skills-src/lib/clacky/default_skills/skill-add .claude/skills/skill-add && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
skill-add
GitHub stars
1.2k
Token cost
~560 tokens
SKILL.md length
176 words
Files
2 (incl. scripts)
Skills in repo
20
Repo updated
First seen
Licence
MIT

At a glance

Install skills from a zip URL or local zip file path. An agent skill from clacky-ai/openclacky.

  • The user wants to install a skill from a zip link
  • SKILL.md covers How to Install, Examples and Notes
  • Runs Ruby scripts from its folder; calls ruby; reaches store.clacky.ai
  • Uses commands like /skill-add with a URL

What it does

Skill Add is an agent skill from clacky-ai/openclacky. Install skills from a zip URL or local zip file path. Use this skill whenever the user wants to install a skill from a zip link or a local file, or uses commands like /skill-add with a URL or file path. Trigger on phrases like: install skill, install from zip, skill from zip, skill from url, add skill from zip, 安装skill, 从zip安装skill, 从本地安装skill.

Its SKILL.md is about 560 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including scripts.

It sits in Agent Workflows, covering Skill management. The repository describes itself as: The most Token-efficient open-source AI Agent. The licence is MIT.

When your agent uses it

  • The user wants to install a skill from a zip link
  • Uses commands like /skill-add with a URL
  • Phrases like: install skill
  • Install from zip

Example prompts

  • “/skill-add”

What it can do on your machine

Read from SKILL.md and the folder at commit e16b639. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Ships 1 file in scripts/ (Ruby), which the agent can run.

    Shell commands in SKILL.md call:

    • ruby

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    Hosts in commands or code, which the agent is likely to contact:

    • store.clacky.ai

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Skill Add loads about 560 tokens when it runs. Until then it costs about 89 tokens; SKILL.md has 176 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~89
When it runs · the whole SKILL.md, loaded when a task matches
~560

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); the scripts in this folder are not scanned.

SKILL.md

The full file from clacky-ai/openclacky at commit e16b639, republished under its MIT licence (© clacky-ai). 176 words, ~560 tokens.

Download SKILL.mdSave it as .claude/skills/skill-add/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
skill-add
description
Install skills from a zip URL or local zip file path. Use this skill whenever the user wants to install a skill from a zip link or a local file, or uses commands like /skill-add with a URL or file path. Trigger on phrases like: install skill, install from zip, skill from zip, skill from url, add skill from zip, 安装skill, 从zip安装skill, 从本地安装skill.
name_zh
安装技能
description_zh
通过 zip 链接或本地 zip 文件安装技能。
disable-model-invocation
false
user-invocable
true

Skill Add — Zip Installer

Installs a skill from a zip URL or a local zip file path using the bundled install_from_zip.rb script.

How to Install

The script path is listed in the Supporting Files above (scripts/install_from_zip.rb) — use the full path directly, no find needed.

The script accepts either a remote URL or a local file path:

bash
ruby "SKILL_DIR/scripts/install_from_zip.rb" <zip_url_or_path> [slug]
  • <zip_url_or_path> — a remote https:// URL or an absolute/relative local path to a .zip file
  • [slug] — optional; the skill's directory name. If omitted, inferred from the filename (e.g. canvas-design-1.2.0.zip → canvas-design)

The script handles everything automatically:

  • For URLs: downloads the zip (follows HTTP redirects)
  • For local paths: reads the file directly (no download needed)
  • Extracts and locates all SKILL.md files inside
  • Copies skill directories to ~/.clacky/skills/
  • Reports installed skills with their descriptions

Do NOT manually download or unzip — the script handles everything.

Examples

From a remote URL:

/skill-add https://store.clacky.ai/skills/canvas-design-1.2.0.zip
bash
ruby "SKILL_DIR/scripts/install_from_zip.rb" \
  "https://store.clacky.ai/skills/canvas-design-1.2.0.zip" \
  "canvas-design"

From a local file:

/skill-add /Users/alice/Downloads/my-skill-1.0.0.zip
bash
ruby "SKILL_DIR/scripts/install_from_zip.rb" \
  "/Users/alice/Downloads/my-skill-1.0.0.zip"

Notes

  • Skills install to ~/.clacky/skills/ by default
  • Local paths may be absolute (/path/to/skill.zip) or use ~ (~/Downloads/skill.zip)
  • If the user doesn't provide a URL or path, ask them for the zip source

© clacky-ai, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 1 other file (scripts) in lib/clacky/default_skills/skill-add of clacky-ai/openclacky.

  • SKILL.md
  • scripts/install_from_zip.rb

Open the folder on GitHubat commit e16b639

Compare with similar skills

Skill Add next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Skill Add compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Skill Add this skillclacky-ai/openclacky1.2k—~560Automated safety check: PassMIT
Darwin Skill Optimizeralchaincyf/darwin-skill6.2k1 repos~4.7kAutomated safety check: PassMIT
Using Agent Skillsaddyosmani/agent-skills104k4 repos~2.4kAutomated safety check: PassMIT
Ponytail Help CardDietrichGebert/ponytail160k—~726Automated safety check: PassMIT
Skill Creatorzhayujie/CowAgent47k—~4.7kAutomated safety check: NotesMIT
Task Observerrebelytics/one-skill-to-rule-them-all3.2k1 repos~11kAutomated safety check: PassCC-BY-4.0

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Categories

Questions about Skill Add

What does Skill Add do?

Install skills from a zip URL or local zip file path. An agent skill from clacky-ai/openclacky. Skill Add is an agent skill from clacky-ai/openclacky. Install skills from a zip URL or local zip file path.

When should I use Skill Add?

Skill Add fits situations like: the user wants to install a skill from a zip link; uses commands like /skill-add with a URL; phrases like: install skill; install from zip.

How do I install Skill Add in Claude Code?

Run `npx skills add clacky-ai/openclacky --skill skill-add -a claude-code`. Or copy the skill folder (lib/clacky/default_skills/skill-add in clacky-ai/openclacky) into .claude/skills/skill-add in your project. Claude Code loads it when a task matches its description.

How do I install Skill Add in Codex?

Run `npx skills add clacky-ai/openclacky --skill skill-add -a codex`. Or copy the skill folder (lib/clacky/default_skills/skill-add in clacky-ai/openclacky) into .agents/skills/skill-add in your project. Codex loads it when a task matches its description.

Can I use Skill Add in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add clacky-ai/openclacky --skill skill-add -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/skill-add, .gemini/skills/skill-add, .github/skills/skill-add and .opencode/skills/skill-add in your project.

What does Skill Add need to run?

Going by SKILL.md and its folder, Skill Add needs Ruby for the scripts in its folder and the command-line tools its instructions call (ruby).

Does Skill Add access the network?

SKILL.md names 1 domain. In commands or code: store.clacky.ai; the agent is likely to contact it when it follows the instructions. This is read from the text; nothing was executed.

Is Skill Add safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.

What licence does Skill Add use?

Skill Add is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Skill Add use?

About 560 tokens (SKILL.md is roughly 2.2k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Skill Add?

Skills that share tags, products or a category with Skill Add: Darwin Skill Optimizer (alchaincyf/darwin-skill, 6.2k stars), Using Agent Skills (addyosmani/agent-skills, 104k stars), Ponytail Help Card (DietrichGebert/ponytail, 160k stars) and Skill Creator (zhayujie/CowAgent, 47k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Skill Add?

clacky-ai (a GitHub organization) maintains it in clacky-ai/openclacky, which has 1,204 GitHub stars. The repository holds 20 skills in this directory. The repository was last updated on October 10, 2026.

Source: clacky-ai/openclacky on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.