Claude Plugins

Plugins by Londeren for Claude Code, claude.ai and any other agent that reads skills. The repository is a plugin marketplace: add it once and install whatever you need from it.

Plugins

Plugin	What it does	Docs
prompt-writer	Turns "write me a prompt" into an engineered prompt: routes the request into one of five prompt types, applies 24 master rules derived from the Claude system prompts, then audits the draft against a self-check list	plugins/prompt-writer

Installation

Every route below installs from this repository. Swap prompt-writer for any plugin from the table.

Claude Code: plugin marketplace

/plugin marketplace add Londeren/claude-plugins
/plugin install prompt-writer@Londeren

The marketplace registers under the repository owner, Londeren, which is why the plugin id ends in @Londeren. If the install summary says Run /reload-plugins to activate., run that command.

The same thing without the interactive panel, for scripts and dotfiles:

claude plugin marketplace add Londeren/claude-plugins
claude plugin install prompt-writer@Londeren

Add --scope project to the install to share it with everyone working on the current repository.

Any agent: npx skills

The skills.sh CLI installs into whatever agents it finds (Cursor, Copilot, Codex, Gemini, Cline, Amp, Antigravity and a dozen more):

npx skills add Londeren/claude-plugins --skill prompt-writer

Without --skill the CLI lists everything in the repository and asks which skills to install; -l lists them without installing. Files land in .agents/skills/<name> for the current project, symlinked into each agent's own skills directory. Add -g to install for your user instead of the project, and --copy if you would rather have real files than symlinks.

Claude Code: manual copy

Each plugin directory carries its own plugin.json, so Claude Code loads it as a skills-directory plugin:

git clone https://github.com/Londeren/claude-plugins.git /tmp/claude-plugins
cp -r /tmp/claude-plugins/plugins/prompt-writer ~/.claude/skills/prompt-writer

Use .claude/skills/ inside a repository instead of ~/.claude/skills/ to scope it to that project.

A team on one repository

Commit this to the repository's .claude/settings.json. Claude Code offers the marketplace and the plugin to everyone who trusts the folder:

{
  "extraKnownMarketplaces": {
    "Londeren": {
      "source": {
        "source": "github",
        "repo": "Londeren/claude-plugins"
      }
    }
  },
  "enabledPlugins": {
    "prompt-writer@Londeren": true
  }
}

claude.ai

1. Open Settings → Customize → Plugins.

2. Switch to the Added tab and press Add Marketplace.

3. Choose Add from a Repository and paste the repository URL:

   https://github.com/Londeren/claude-plugins
   

4. Press Sync. The marketplace appears in the list; install the plugin from it and its skill triggers on its own in any chat.

Enable "Code execution and file creation" in Settings → Capabilities if it is off.

Repository layout

.claude-plugin/
  marketplace.json              - marketplace manifest, one entry per plugin
plugins/<name>/                 - a plugin, this is what ships to users
  .claude-plugin/plugin.json    - plugin manifest
  SKILL.md                      - entry point, the only file loaded on activation
  README.md                     - the plugin's own documentation
docs/                           - specs, plans and development notes, not shipped
CLAUDE.md                       - instructions for Claude Code working on this repository

License

MIT