Claude Code Plugins and Skills

A collection of 17 plugins and 80+ skills for Claude Code.
Quickstart
# 1. Add the marketplace
claude plugin marketplace add florianbuetow/claude-code
# 2. Install plugins (pick what you need)
claude plugin install agent-guardrails
claude plugin install appsec
claude plugin install archibald
claude plugin install beyond-solid-principles
claude plugin install cache-money
claude plugin install changelog
claude plugin install explain-system-tradeoffs
claude plugin install fixclaude
claude plugin install iso27001-sdlc
claude plugin install kiss
claude plugin install logbook
claude plugin install onboarding
claude plugin install retrospective
claude plugin install solid-principles
claude plugin install spec-dd
claude plugin install sessionlog
claude plugin install spec-writer
# 3. Restart Claude Code
# Update all installed plugins to latest versions
claude plugin marketplace update florianbuetow-plugins
Skills
| Skill | Description |
|---|
| agent-guardrails | Agent behavioral guardrails - 11 rules across Stop, PreToolUse, and PostToolUse hooks |
| appsec | Comprehensive application security toolbox - 62 skills, 8 frameworks, red team simulation |
| archibald | Software architecture quality assessment - smells, metrics, antipatterns, dependencies, risks, debt |
| beyond-solid-principles | System-level architecture principles analysis |
| cache-money | Keep the Anthropic prompt cache warm during peak hours - adapts ping interval to your cache TTL (5-min or 1-hour) |
| changelog | Generate and maintain CHANGELOG.md from git history - Keep a Changelog format with Semantic Versioning |
| explain-system-tradeoffs | Distributed system tradeoff analysis |
| fixclaude | Production-grade CLAUDE.md directives that override Claude Code's built-in limitations |
| iso27001-sdlc | ISO 27001:2022 software development compliance scanner - Annex A controls 8.4, 8.25–8.33 |
| K.I.S.S. | Code and architecture simplicity analysis - complexity, abstraction, redundancy, architecture |
| logbook | Session log analytics - time spent and messages exchanged per project/branch, with monthly + yearly reports |
| onboarding | Project onboarding - status briefing from git, issues, and build system |
| retrospective | Developer-AI workflow analysis - session log retros with feedback loops |
| sessionlog | Export session logs as standard LLM conversation JSON and TXT transcripts |
| solid-principles | Automated SOLID principles analysis for OO code |
| spec-dd | Specification-driven development workflow |
| spec-writer | Expert-guided software specification documents |
Installation
All plugins are installed from the same marketplace.
# Add the marketplace (one time)
claude plugin marketplace add florianbuetow/claude-code
# Install any plugin by name
claude plugin install <plugin-name>
Restart Claude Code after installing. Available plugins: solid-principles, beyond-solid-principles, archibald, kiss, appsec, spec-writer, spec-dd, explain-system-tradeoffs, retrospective, onboarding, iso27001-sdlc, cache-money, logbook, changelog, agent-guardrails, fixclaude, sessionlog.
Updating
# Update all installed plugins to latest versions
claude plugin marketplace update florianbuetow-plugins
# Verify a plugin version
find ~/.claude/plugins -name "plugin.json" -path "*<plugin-name>*" -exec grep version {} \;
Manual / Development Installation
git clone https://github.com/florianbuetow/claude-code.git
cd claude-code
# Load a plugin directory for this session only
claude --plugin-dir ./plugins/<plugin-name>
Using the Justfile
If you have just installed, you can manage the marketplace and plugins with:
just install # Add marketplace and install all plugins
just update # Update marketplace and all installed plugins
just status # Show installed vs repo plugin versions
just validate # Validate plugin and marketplace manifests
Using with Codex (OpenAI)