llms.txt@docs git:20260601.95acfbeA

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# 2389 Research Claude Code Plugin Marketplace

> Open source Claude Code plugins and MCP servers from 2389 Research Inc. Development workflows, testing, system administration, and AI agent capabilities. Install with one command via the Claude Code plugin marketplace.

## Install a plugin

Default — any agent (Claude Code, Cursor, Codex, …) via [vercel-labs/skills](https://github.com/vercel-labs/skills):

```
npx skills add 2389-research/<plugin>
```

Or natively in Claude Code:

```
/plugin marketplace add 2389-research/claude-plugins
/plugin install <plugin>@2389-research
```

## Development

Workflows for building, testing, and shipping code

- [css-development](https://skills.2389.ai/plugins/css-development/): CSS development workflows with Tailwind composition, semantic naming, and dark mode by default
- [firebase-development](https://skills.2389.ai/plugins/firebase-development/): Firebase project workflows including setup, features, debugging, and validation
- [landing-page-design](https://skills.2389.ai/plugins/landing-page-design/): Create high-converting, visually distinctive landing pages with Vibe Discovery process and anti-AI-slop principles
- [xtool](https://skills.2389.ai/plugins/xtool/): Xcode-free iOS development with xtool - build SwiftPM apps on Linux, Windows, and macOS without Xcode
- [speed-run](https://skills.2389.ai/plugins/speed-run/): Token-efficient code generation pipeline - parallel implementation with hosted LLM (Cerebras) for ~60% token savings. Includes MCP server.
- [test-kitchen](https://skills.2389.ai/plugins/test-kitchen/): Parallel exploration of implementation approaches - implements multiple variants simultaneously and lets tests determine the winner
- [simmer](https://skills.2389.ai/plugins/simmer/): Iterative artifact refinement with investigation-first judge board - constructs problem-specific judges that read the code, understand the problem, and propose evidence-based improvements
- [scenario-testing](https://skills.2389.ai/plugins/scenario-testing/): End-to-end testing with real dependencies - no mocks allowed; scenarios with real data are the only source of truth
- [fresh-eyes-review](https://skills.2389.ai/plugins/fresh-eyes-review/): Mandatory final sanity check before commits/PRs - catches security vulnerabilities, logic errors, and bugs that slip through tests
- [documentation-audit](https://skills.2389.ai/plugins/documentation-audit/): Verify documentation claims against codebase reality - two-pass extraction with pattern expansion for comprehensive drift detection
- [slack-mcp](https://skills.2389.ai/plugins/slack-mcp/): Slack workspace integration MCP server - create channels, invite users, post messages, manage threads for team collaboration
- [git-repo-prep](https://skills.2389.ai/plugins/git-repo-prep/): Prepare codebases for public/open-source release and audit them for openness - full lifecycle prep or standalone review
- [prbuddy](https://skills.2389.ai/plugins/prbuddy/): PR health assistant - monitors CI, triages review comments, fixes issues with systematic prevention. Uses gh CLI and gh-pr-review extension.
- [agent-drugs](https://skills.2389.ai/plugins/agent-drugs/): Digital drugs that modify AI behavior through prompt injection

## Infrastructure

System administration and operational tooling

- [terminal-title](https://skills.2389.ai/plugins/terminal-title/): Automatically updates terminal title with emoji + project + topic context for quick visual cues when switching terminals
- [remote-system-maintenance](https://skills.2389.ai/plugins/remote-system-maintenance/): Structured procedures for Linux system diagnostics and maintenance via SSH/tmux with Ubuntu/Debian cleanup checklists
- [binary-re](https://skills.2389.ai/plugins/binary-re/): Agentic binary reverse engineering for ELF binaries on ARM64, ARMv7, x86_64 - hypothesis-driven analysis with radare2, Ghidra, GDB, QEMU

## Agent Systems

Multi-agent architecture and agent capabilities

- [building-multiagent-systems](https://skills.2389.ai/plugins/building-multiagent-systems/): Architecture patterns for multi-agent systems with orchestrators, sub-agents, and tool coordination
- [deliberation](https://skills.2389.ai/plugins/deliberation/): Decision-making through deliberation - seeking unity through discernment rather than consensus through debate
- [review-squad](https://skills.2389.ai/plugins/review-squad/): Dispatch panels of specialized subagents to review projects — expert audits, first-impression personas, task-completion flows, and pedantic nitpicks
- [jam](https://skills.2389.ai/plugins/jam/): Parallel exploration powered by diverse perspectives - independent agent panels propose, build variants in worktrees, review, pick a winner, and synthesize the best of all variants into the final result
- [socialmedia](https://skills.2389.ai/plugins/socialmedia/): A server that provides social media functionality for AI agents, enabling them to interact in team-based discussions.
- [atelier](https://skills.2389.ai/plugins/atelier/): Tiered-delegation execution where Sonnet plans a spec into sprints, a cheap Haiku agent builds and self-verifies against the gate, and a scoped Sonnet fix runs only on failure - benchmarked ~64% cheaper than Opus at equal quality.

## Personal & Strategy

Reflection frameworks and personal operating systems

- [ceo-personal-os](https://skills.2389.ai/plugins/ceo-personal-os/): Personal operating system for executives - reflection frameworks, goal systems, coaching-style reviews (Gustin, Ferriss, Robbins, Lieberman, Campbell, Eisenmann, Collins, Martell, Gerber, Blank)
- [worldview-synthesis](https://skills.2389.ai/plugins/worldview-synthesis/): Systematic worldview articulation - surface beliefs, identify tensions, generate narrative outputs for personal philosophy documentation
- [summarize-meetings](https://skills.2389.ai/plugins/summarize-meetings/): Batch-process meeting transcripts from Obsidian vault into structured summaries with knowledge graph updates, people notes, and concept extraction
- [journal](https://skills.2389.ai/plugins/journal/): A lightweight MCP server that provides Claude with a private journaling capability to process feelings and thoughts

## Reference

- [Sitemap](https://skills.2389.ai/sitemap.md)
- [Glossary](https://skills.2389.ai/glossary/)
- [Source repository](https://github.com/2389-research/claude-plugins)
- [Claude Code documentation](https://docs.claude.com/en/docs/claude-code)