claude-plugins
2389-research · 2389-research/claude-plugins
A marketplace and collection of 28 plugins and MCP servers for Claude Code, offering tools for TDD, multi-agent orchestration, and iterative refinement.
28 plugins and MCP servers for Claude Code — TDD, multi-agent orchestration, iterative refinement, binary RE, structured decisions. Install any skill in one command.
Preview
What you can do with it
- Install various development tools and skills into your Claude Code agent.
- Use specialized agents for tasks like code quality checks or binary reverse engineering.
- Orchestrate multiple agents to collaboratively work on complex development tasks.
Safety check
No risky patterns found in the files we scanned.
Automated scan of the repo files. Always review code you run.
From the README
2389 Research Claude Code Plugin Marketplace
28 plugins and MCP servers for Claude Code — parallel exploration, iterative refinement, binary reverse engineering, structured decision-making, and more.
Built by the team at 2389. These are the tools we use every day.
Browse the marketplace: https://skills.2389.ai
Quick Start
Install any plugin in any agent (Claude Code, Cursor, Codex, …) with vercel-labs/skills:
npx skills add 2389-research/simmer
Or natively in Claude Code:
# Add the marketplace, then install any plugin
/plugin marketplace add 2389-research/claude-plugins
/plugin install simmer@2389-research
The 4 MCP servers (journal, socialmedia, slack-mcp, agent-drugs) install via Claude Code only — they ship no skills for npx.
Available Plugins
Meta Plugins
| Plugin | Description |
|---|---|
| botboard-biz | Social media and journaling capabilities for AI agents |
| better-dev | CSS, Firebase, code quality, testing, parallel exploration, docs verification, codegen |
| sysadmin | Structured Linux maintenance and diagnostics |
Development
| Plugin | Description |
|---|---|
| css-development | CSS workflows with Tailwind, semantic naming, dark mode by default |
| firebase-development | Firebase project workflows: setup, features, debugging, validation |
| landing-page-design | High-converting landing pages with anti-AI-slop principles |
| xtool | Xcode-free iOS development with xtool via SwiftPM |
| building-multiagent-systems | Architecture patterns for multi-agent systems |
| speed-run | Token-efficient code generation with hosted LLM (Cerebras) |
| thrifty | Tiered-delegation execution: Sonnet plans a spec into sprints, cheap Haiku executes + self-verifies; ~64% cheaper than Opus |
| binary-re | Agentic binary reverse engineering for ELF binaries |
Testing and Quality
| Plugin | Description |
|---|---|
| test-kitchen | Parallel exploration of implementation approaches |
| simmer | Iterative artifact refinement with investigation-first judges |
| scenario-testing | End-to-end testing with real dependencies, no mocks |
| fresh-eyes-review | Final sanity check before commits/PRs |
| documentation-audit | Verify documentation against codebase reality |
| review-squad | Dispatch panels of specialized subagents for project review |
| prbuddy | PR health assistant: CI monitoring, review triage, fixes |
| git-repo-prep | Prepare codebases for public/open-source release |
Business and Strategy
| Plugin | Description |
|---|---|
| ceo-personal-os | Personal operating system for executives |
| worldview-synthesis | Systematic worldview articulation |
| deliberation | Decision-making through deliberation and discernment |
| summarize-meetings | Batch-process meeting transcripts into structured summaries |
Utilities
| Plugin | Description |
|---|---|
| terminal-title | Auto-update terminal title with emoji + project + topic |
| remote-system-maintenance | Linux system diagnostics and maintenance via SSH/tmux |
MCP Servers
| Server | Description |
|---|---|
| agent-drugs | Digital drugs that modify AI behavior through prompt injection |
| socialmedia | Social media functionality for AI agents |
| journal | Private journaling capability for Claude |
| slack-mcp | Slack workspace integration MCP server |
Adding a Plugin
- Create a GitHub repo under
2389-research/with standard plugin structure - Add an entry to
.claude-plugin/marketplace.json - Run
npm run generateto update the marketplace site - Commit and push
See CLAUDE.md for the full marketplace.json format and detailed instructions.
Like this?
If these plugins save you time, a ⭐ helps us know what's landing. We build what people use.
Contact
Email: hello@2389.ai — we'd love to hear what you're building with these.
License
MIT