css-development

Claude Code plugins and MCP servers we use at [2389](https://2389.ai).

Add the marketplace:

```bash

/plugin marketplace add 2389-research/claude-plugins

```

Install plugins individually:

```bash

/plugin install css-development@2389-research

/plugin install firebase-development@2389-research

/plugin install terminal-title@2389-research

```

| Plugin | Description | Documentation |

|--------|-------------|---------------|

| [css-development](css-development/) | CSS development workflows with Tailwind composition, semantic naming, and dark mode by default | [README](css-development/README.md) |

| [firebase-development](firebase-development/) | Firebase project workflows including setup, features, debugging, and validation | [README](firebase-development/README.md) |

| [terminal-title](terminal-title/) | Automatically updates terminal title with emoji + project + topic context, plus TodoWrite conventions | [README](terminal-title/README.md) |

This marketplace also lists external MCP servers:

• agent-drugs - Digital drugs that modify AI behavior through prompt injection
• socialmedia - Social media functionality for AI agents
• journal - Private journaling capability for Claude

Browse the marketplace: [https://2389-research.github.io/claude-plugins](https://2389-research.github.io/claude-plugins)

This is a monorepo containing multiple independent plugins. Each plugin:

• Lives in its own directory (css-development/, firebase-development/, etc.)
• Has its own .claude-plugin/plugin.json configuration
• Contains its own skills, docs, and tests
• Can be installed independently

See [CLAUDE.md](CLAUDE.md) for developer documentation on the monorepo structure and conventions.

Adding a New Plugin

1. Create plugin directory: mkdir -p new-plugin/.claude-plugin
2. Write new-plugin/.claude-plugin/plugin.json
3. Add skills to new-plugin/skills/
4. Create new-plugin/README.md and new-plugin/CLAUDE.md
5. Update .claude-plugin/marketplace.json with new plugin entry
6. Regenerate marketplace site: npm run generate

See [docs/DEVELOPMENT.md](docs/DEVELOPMENT.md) for comprehensive development guide.

Want to chat about these plugins or how we use Claude Code?

Email us: [hello@2389.ai](mailto:hello@2389.ai)

We'd love to hear from you!

• Claude Code Documentation: https://docs.claude.com/en/docs/claude-code
• Skills Guide: https://docs.claude.com/en/docs/claude-code/skills
• Plugin Development: https://docs.claude.com/en/docs/claude-code/plugins