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://2389-research.github.io/claude-plugins
# Add the marketplace
/plugin marketplace add 2389-research/claude-plugins
# Install any plugin
/plugin install simmer@2389-research| 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 |
| 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) |
| binary-re | Agentic binary reverse engineering for ELF binaries |
| 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 |
| 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 |
| Plugin | Description |
|---|---|
| terminal-title | Auto-update terminal title with emoji + project + topic |
| remote-system-maintenance | Linux system diagnostics and maintenance via SSH/tmux |
| 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 |
- 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.
If these plugins save you time, a ⭐ helps us know what's landing. We build what people use.
Email: hello@2389.ai — we'd love to hear what you're building with these.
MIT