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Agent skill

Create Cowork Plugin

by minicoohei in minicoohei/ai-agent-camp

Cowork セッションでプラグインをゼロから作成するスキル. An agent skill from minicoohei/ai-agent-camp.

No licenceAuto-check passedAgent Workflows

Install Create Cowork Plugin

skills CLI
$ npx skills add minicoohei/ai-agent-camp --skill create-cowork-plugin -a claude-code

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

GitHub CLI
$ gh skill install minicoohei/ai-agent-camp create-cowork-plugin --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/minicoohei/ai-agent-camp.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/create-cowork-plugin .claude/skills/create-cowork-plugin && 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
create-cowork-plugin
GitHub stars
347
Token cost
~3k tokens
SKILL.md length
1,275 words
Files
6 (incl. references)
Skills in repo
37
Repo updated
First seen
Licence
None found

At a glance

Cowork セッションでプラグインをゼロから作成するスキル. An agent skill from minicoohei/ai-agent-camp.

  • Works in 5 steps: Discovery → Component Planning → Design & Clarifying Questions → …
  • Agent Workflows work in your project
  • SKILL.md covers Overview, Plugin Architecture, Guided Workflow and Best Practices, plus 1 more section
  • Calls claude

What it does

Create Cowork Plugin is an agent skill from minicoohei/ai-agent-camp. Cowork セッションでプラグインをゼロから作成するスキル。 「プラグインを作って」「プラグイン開発」「plugin作成」等のリクエストで発動。 Cowork モードで .plugin ファイルを生成。

Its SKILL.md is about 3k tokens, which your agent loads only when the skill is triggered. The skill folder holds 7 other files, including reference files (for example `SKILL.en.md`, `SKILL.es.md` and `agents/openai.yaml`). Compatibility notes: Requires Cowork desktop app environment with access to the outputs directory for delivering .plugin files.

It sits in Agent Workflows. The repository describes itself as: AI Agent Camp — non-engineer-friendly AI agent training curriculum. Lessons, skills, commands, and hooks for Claude Code, Cursor, and Codex.

When your agent uses it

  • Agent Workflows work in your project

Example prompts

  • “/create-cowork-plugin”

Requirements

  • Compatibility (from SKILL.md): Requires Cowork desktop app environment with access to the outputs directory for delivering .plugin files.

Workflow steps

5 steps, taken from the step headings in SKILL.md.

  1. Discovery
  2. Component Planning
  3. Design & Clarifying Questions
  4. Implementation
  5. Review & Package

What it can do on your machine

Read from SKILL.md and the folder at commit 048ba4c. 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

    Shell commands in SKILL.md call:

    • claude

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

  • Network

    No URLs in SKILL.md.

    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.

  • Compatibility

    Requires Cowork desktop app environment with access to the outputs directory for delivering .plugin files.

    From compatibility in the SKILL.md frontmatter.

Context cost

Create Cowork Plugin loads about 3k tokens when it runs, and up to ~7.5k if it reads all its reference files. Until then it costs about 31 tokens; SKILL.md has 1,275 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~31
When it runs · the whole SKILL.md, loaded when a task matches
~3k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~7.5k

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); files beside SKILL.md are not scanned.

SKILL.md

Without a licence we can't republish the file, so here is its outline and opening line. It has 1,275 words (~2,957 tokens).

“Build a new plugin from scratch through guided conversation. Walk the user through discovery, planning, design, implementation, and packaging — delivering a ready-to-install .plugin file at the end.”

— opening of SKILL.md by minicoohei
name
create-cowork-plugin
compatibility
Requires Cowork desktop app environment with access to the outputs directory for delivering .plugin files.
source
github.com/anthropics/knowledge-work-plugins@main
triggers
create-cowork-plugin, プラグインを作って, プラグイン開発, plugin作成, プラグイン設計, cowork plugin

Read the full SKILL.md on GitHub

Files

SKILL.md and 5 other files (references) in skills/create-cowork-plugin of minicoohei/ai-agent-camp.

  • SKILL.md
  • SKILL.en.md
  • SKILL.es.md
  • agents/openai.yaml
  • references/component-schemas.md
  • references/example-plugins.md

Open the folder on GitHubat commit 048ba4c

Compare with similar skills

Create Cowork Plugin 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.

Create Cowork Plugin compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Create Cowork Plugin this skillminicoohei/ai-agent-camp347—~3kAutomated safety check: PassNone
MCP Server Builderanthropics/skills180k63 repos~2.3kAutomated safety check: PassApache-2.0
Hook Development for Claude Code Pluginsanthropics/claude-plugins-official38k10 repos~4.1kAutomated safety check: NotesApache-2.0
Using Superpowersfarm-fe/farm5.6k35 repos~1.4kAutomated safety check: PassMIT
Executing Plans Inlineobra/superpowers297k2 repos~5.1kAutomated safety check: PassMIT
Skill CreatorAzure/azqr79589 repos~8.2kAutomated safety check: PassApache-2.0

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Categories

Questions about Create Cowork Plugin

What does Create Cowork Plugin do?

Cowork セッションでプラグインをゼロから作成するスキル. An agent skill from minicoohei/ai-agent-camp. Create Cowork Plugin is an agent skill from minicoohei/ai-agent-camp.

When should I use Create Cowork Plugin?

Create Cowork Plugin fits situations like: agent Workflows work in your project.

How do I install Create Cowork Plugin in Claude Code?

Run `npx skills add minicoohei/ai-agent-camp --skill create-cowork-plugin -a claude-code`. Or copy the skill folder (skills/create-cowork-plugin in minicoohei/ai-agent-camp) into .claude/skills/create-cowork-plugin in your project. Claude Code loads it when a task matches its description.

How do I install Create Cowork Plugin in Codex?

Run `npx skills add minicoohei/ai-agent-camp --skill create-cowork-plugin -a codex`. Or copy the skill folder (skills/create-cowork-plugin in minicoohei/ai-agent-camp) into .agents/skills/create-cowork-plugin in your project. Codex loads it when a task matches its description.

Can I use Create Cowork Plugin 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 minicoohei/ai-agent-camp --skill create-cowork-plugin -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/create-cowork-plugin, .gemini/skills/create-cowork-plugin, .github/skills/create-cowork-plugin and .opencode/skills/create-cowork-plugin in your project.

What does Create Cowork Plugin need to run?

Going by SKILL.md and its folder, Create Cowork Plugin needs the command-line tools its instructions call (claude). Compatibility (from SKILL.md): Requires Cowork desktop app environment with access to the outputs directory for delivering .plugin files..

Does Create Cowork Plugin access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Create Cowork Plugin 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. Review the folder before installing.

What licence does Create Cowork Plugin use?

No licence was found for Create Cowork Plugin or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.

How many tokens does Create Cowork Plugin use?

About 3k tokens (SKILL.md is roughly 12k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 4.5k tokens, read only when the agent opens those files.

What are the alternatives to Create Cowork Plugin?

Skills that share tags, products or a category with Create Cowork Plugin: MCP Server Builder (anthropics/skills, 180k stars), Hook Development for Claude Code Plugins (anthropics/claude-plugins-official, 38k stars), Using Superpowers (farm-fe/farm, 5.6k stars) and Executing Plans Inline (obra/superpowers, 297k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Create Cowork Plugin?

minicoohei (a GitHub user) maintains it in minicoohei/ai-agent-camp, which has 347 GitHub stars. The repository holds 37 skills in this directory. The repository was last updated on October 7, 2026.

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