Enforce six behavioral guardrails on Claude Code agents via bash stop hooks to block anti-patterns like stalling, speculation, skipping, and false completions. Analyze session logs for violations, rank issues, measure hook effectiveness, detect false positives, and refine regex patterns. Test hooks with trigger phrases to verify blocking of unsafe responses.
Scan Claude Code chat session logs for recurring agent anti-patterns (hedging, stalling, skipping, false completions, preference-asking, dismissing) and produce a ranked report with frequency counts, example excerpts, and suggested guardrail rules. Use when user asks to "analyze sessions for anti-patterns", "find bad patterns in logs", "what anti-patterns am I seeing", "agent-guardrails analyze", or wants data-driven guardrail recommendations.
Install agent behavioral guardrail rules into a project's .claude/ directory. Generates a Stop hook bash script and configures settings.local.json. Includes six battle-tested rules (no-speculative-language, no-stalling, no-preference-asking, no-false-completion, no-skipping, no-dismissing). Use when user asks to "install guardrails", "set up agent guardrails", "add behavioral hooks", "agent-guardrails install", or wants to enforce assistant discipline.
Test installed agent guardrail hooks by sending trigger phrases through the stop hook script. Checks hook installation first, then runs two test phrases per rule. Use when user asks to "test guardrails", "verify hooks", "check guardrail patterns", "agent-guardrails test", or wants to confirm hooks are working.
Re-analyze Claude Code session logs against existing agent guardrail rules to measure effectiveness, catch false positives, identify missed anti-patterns, and refine regex patterns. Use when user asks to "update guardrails", "refine guardrail rules", "check guardrail effectiveness", "agent-guardrails update", "tune guardrails", or wants to improve existing behavioral rules based on real usage data.
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A collection of 17 plugins and 80+ skills for Claude Code.
# 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
| 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 |
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.
# 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 {} \;
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>
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
npx claudepluginhub florianbuetow/claude-code --plugin agent-guardrailsAnalyze Claude Code session logs to identify what went well, what didn't, and how to improve developer-AI collaboration. Suggests new skills, subagents, slash commands, hooks, and workflow optimizations based on actual usage patterns.
Scan a software repository for ISO 27001:2022 compliance of its software development controls (Annex A 8.4, 8.25–8.33). Produces a per-control compliance gap report covering source code access, secure SDLC, application security requirements, secure architecture, secure coding, security testing, outsourced development, environment separation, change management, and test data.
Keep the Anthropic prompt cache warm during Claude Code sessions — especially during peak hours when usage limits are tighter. Detects your cache TTL (5-min default or 1-hour extended) and schedules pings accordingly, reducing token costs by up to 90% on cached context.
Generate and maintain CHANGELOG.md files from git commit history using Keep a Changelog format with semantic versioning. Creates new changelogs or appends updates to existing ones.
Project onboarding skill that orients AI agents by gathering context from project instructions, git state, issue trackers, and build systems to produce a concise status briefing with suggested next steps.
Comprehensive skill pack with 66 specialized skills for full-stack developers: 12 language experts (Python, TypeScript, Go, Rust, C++, Swift, Kotlin, C#, PHP, Java, SQL, JavaScript), 10 backend frameworks, 6 frontend/mobile, plus infrastructure, DevOps, security, and testing. Features progressive disclosure architecture for 50% faster loading.
A growing collection of Claude-compatible academic workflow bundles. Covers scientific figures, manuscript writing and polishing, reviewer assessment, citation retrieval, data availability, paper reading, literature search, response letters, paper-to-PPTX conversion, and evidence-grounded Chinese invention patent drafting. Rules are organized as reusable skill folders with explicit workflows and quality checks.
Develop, test, build, and deploy Godot 4.x games with Claude Code. Includes GdUnit4 testing, web/desktop exports, CI/CD pipelines, and deployment to Vercel/GitHub Pages/itch.io.
Comprehensive PR review agents specializing in comments, tests, error handling, type design, code quality, and code simplification
Comprehensive feature development workflow with specialized agents for codebase exploration, architecture design, and quality review
UI/UX design intelligence. 67 styles, 161 palettes, 57 font pairings, 25 charts, 15 stacks (React, Next.js, Vue, Svelte, Astro, SwiftUI, React Native, Flutter, Tailwind, shadcn/ui, Nuxt, Jetpack Compose). Actions: plan, build, create, design, implement, review, fix, improve, optimize, enhance, refactor, check UI/UX code. Projects: website, landing page, dashboard, admin panel, e-commerce, SaaS, portfolio, blog, mobile app. Elements: button, modal, navbar, sidebar, card, table, form, chart. Styles: glassmorphism, claymorphism, minimalism, brutalism, neumorphism, bento grid, dark mode, responsive, skeuomorphism, flat design. Topics: color palette, accessibility, animation, layout, typography, font pairing, spacing, hover, shadow, gradient.