TYPO3 conventions
TCA, FlexForms, extension testing and DDEV follow their own conventions. Stack-specific skills collect the relevant guidance.
Netresearch Agent Skills
Skills that fit your stack.
Browse skill packages for your stack. Compare prerequisites and install only what you need.
/plugin marketplace add netresearch/claude-code-marketplaceYour project needs more than generic code suggestions
Security and releases
Supply-chain checks, SBOMs and signed releases need deliberate setup. The catalog links to the skills and source documentation for these tasks.
Team workflows
Concourse pipelines, Matrix communication and Jira work each have their own tools, access requirements and review steps.
Find a package. Install the skills you need.
41
catalog entries
7
categories
30+
agents supported by the skills CLI
Skill-skills
Skills that work on skills
These packages help maintain other skills. Harness checks repository instructions and enforcement, Assessment evaluates published checkpoints, and Retro proposes changes from observed friction. Companion skills cover authoring and installation.
The loop at the center
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Harness
Checks repository guidance
Verifies AGENTS.md, linked documentation and enforcement, then identifies or creates missing infrastructure.
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Assessment
Evaluates applicable checkpoints
Combines mechanical checks with LLM-assisted reviews for skills whose checkpoints match the project.
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Retro
Proposes improvements
Examines session friction and proposes concrete changes to memory, project rules, skills or checkpoints. Applying a proposal requires approval.
Approved Retro proposals can improve Harness rules, Assessment checkpoints and other skills.
Around the loop
Authoring skills prepare instructions and checkpoints; host tools make skills available in PHP and Node projects.
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agent-rules
Repository instructions
Extracts project commands, architecture and conventions into AGENTS.md and related rule files.
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add-checkpoints
Assessment companion skill
A separate skill shipped with automated-assessment. Adds checkpoints that Assessment can evaluate; select it separately with a skill-only installer.
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skill-repo
Skill repository structure
Provides templates and validation for manifests, split licensing and release workflows.
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composer-agent-skill-plugin
PHP project integration
Discovers trusted skill packages or direct sources and registers their instructions in AGENTS.md.
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node-agent-skill-coordinator
Node project integration
Discovers skills from npm dependencies and registers them in the project's AGENTS.md.
Choose by task or technology
Browse skills for extensions, deployed projects, pipelines, reviews and documentation. Open a package to check its scope and installation requirements.
Installation route
First add the marketplace once in Claude Code: /plugin marketplace add netresearch/claude-code-marketplace.
Then install the selected plugin. For setup and installation scopes, see Claude Code plugin setup A plugin can include several skills and additional components.
Requires Node.js 22.20+. Run from the target project, then choose the source skills and agents in the installer.
Uses the skills CLI from skills.sh Installs skill instructions. Extra plugin hooks, commands and external runtime tools are not installed by this route.
Allow the Composer skill installer to activate and approve skill registration when prompted.
Requires netresearch/composer-agent-skill-plugin Discovers trusted skill packages and registers their instructions in AGENTS.md. Runtime tools may need separate setup.
Install and activate netresearch/composer-agent-skill-plugin first; approve the selected source's skill registration.
Provided by netresearch/composer-agent-skill-plugin Pins source repositories without a Packagist package and records them in composer.skills.lock. Runtime dependencies remain separate.
Skill-skills
A small family of skills whose subject matter is other skills. At the center runs a loop — Harness, Assessment, Retro — and around it sit authoring and host-side tools that feed the loop.
Agent Harness
Use when making a repo agent-ready, verifying harness consistency, checking for documentation drift, bootstrapping harness infrastructure (AGENTS.md as index, docs/ structure, CI verification, enforcement mechanisms), or auditing repo agent-readiness maturity level.
Automated Assessment
Systematic project assessment against checkpoint-enabled skills with scripted verification + LLM review. Supports any project type via skill-level preconditions. CLI: /assess [--autofix] [--review] [--autoimprove]. Includes /assess:add-checkpoints to onboard new skills. By Netresearch.
Retro
LLM-driven session retrospection. Detects friction in agent sessions (mechanical pre-pass + LLM inference + cross-session) and materializes approved learnings into user memory, project rules, skill PRs, checkpoints, or harness artifacts. Commands: /retro, /retro outcome, /retro audit.
Agent Rules
Generate and maintain AGENTS.md, copilot-instructions.md, and other agent rule files. Extracts CI rules, architecture boundaries, ADRs, and GitHub rulesets. Supports Go, PHP, TYPO3, Symfony, Python, TypeScript, and skill repos.
Skill Repository
Guide for structuring Netresearch skill repositories with multi-channel distribution. Covers repository standards, composer.json configuration, release workflows, and validation scripts.
TYPO3 Development
Stack-aware skills for TYPO3 extensions and projects.
TYPO3 Conformance
Evaluate TYPO3 extensions for conformance to official coding standards, architecture patterns, and best practices. Automated validation scripts for file structure, PSR-12 compliance, dependency injection, testing infrastructure, and priority-based conformance scoring.
TYPO3 Site Conformance
Conformance and hardening for deployable TYPO3 v14 site/project repos (type:project + Docker/Compose): layout, Compose topology, Concourse CI, supply-chain gating (Trivy/SBOM/cosign), secret-free config, Valkey/ofelia runtime. Site/project counterpart to typo3-conformance.
TYPO3 Testing
Create and manage TYPO3 extension tests with comprehensive testing infrastructure. Includes unit, functional, and acceptance testing support, PHPUnit configurations, Docker setup, CI/CD templates, and automated test generation following TYPO3 best practices.
TYPO3 Docs
Create and maintain TYPO3 extension documentation following official TYPO3 documentation standards. Automated extraction with priority-weighted gap analysis, RST syntax reference, TYPO3-specific directives, local rendering, validation, and Intercept deployment setup.
TYPO3 DDEV
Set up and manage TYPO3 development environments using DDEV. Includes DDEV configuration, local development workflows, container management, database handling, and integration with TYPO3-specific tooling.
TYPO3 Extension Upgrade
Systematic TYPO3 extension upgrades to newer LTS versions with modern PHP compatibility. Extension Scanner assessment, Rector for PHP migrations, Fractor for FlexForms/TypoScript/YAML/Fluid, PHPStan, and testing setup. Version-specific guidance for v11→v12, v12→v13, and dual-compatibility.
TYPO3 Project Upgrade
Systematic TYPO3 project instance upgrades across major LTS versions. sys_template→Site Sets migration, Bootstrap 4→5 patterns, Bootstrap Package v12–v16 breaking changes, SCSS variable injection, Docker infrastructure, database cleanup, visual review methodology with assessment checkpoints.
TYPO3 CKEditor 5
CKEditor 5 development patterns for TYPO3 v12+. Covers custom plugin development, schema and conversion system, TYPO3 YAML configuration, and CKEditor 4 to 5 migration guides. By Netresearch.
TYPO3 Core Contributions
Guide contributions to TYPO3 core following official contribution guidelines. Includes patch creation, Gerrit workflow, coding guidelines, testing requirements, and review processes for contributing to the TYPO3 core.
TYPO3 TypoScript Reference
Version-aware TypoScript, TSconfig and Fluid reference lookup with always-on best practices. Keyword search across cached documentation, 14 ready-to-use recipes, code review checklists, deprecation checks, migration guides, debugging reference. Supports TYPO3 v12, v13, and v14.
TYPO3 Accessibility
Build accessible TYPO3 interfaces using WCAG 2.2 AA patterns for skip links, navigation, forms, filters, disclosures, cards, tables, language switching, reduced motion and notifications.
TYPO3 Vite
Vite 7 build setup for TYPO3 v13+ with vite-asset-collector, SCSS architecture with selective Bootstrap 5 imports, custom SVG optimization plugin, entrypoint-per-CE code splitting, and CSP compliance.
TYPO3 Upgrade Effort Model
Generic effort model for TYPO3 LTS upgrades: per-version risk multipliers (v14 Fluid 5 strict VHs, HashService removal, TSFE removal, asset-pipeline removal), breaking-change baselines, compatibility matrix, Rector coverage adjustments, 7-phase assessment workflow. Pair with team history.
OroCommerce
Entities, datagrids, REST API, workflows, frontend, security.
OroCommerce
OroCommerce development guidance covering entities, datagrids, REST API, workflows, frontend, security, integration, and bundle scaffolding. By Netresearch.
Code Quality & Security
Modernization, audits, supply-chain hardening.
PHP Modernization
PHP 8.x modernization patterns for upgrading legacy PHP applications. Covers constructor property promotion, readonly classes, enums, attributes, generics via PHPDoc, PHPStan level 9+ compliance, and Symfony best practices. By Netresearch.
PHP Structured Edit
Edit PHP methods, parameters and expressions with named selectors, typed operations and SHA-256 guards. Supports multi-file batches, format-preserving output and optional canonical printing. Review diffs and run lint/project tests; syntax checks do not prove behavior.
Formal Model Checking
Concurrency, retries and crashes can break invariants that ordinary tests miss. Check small finite-state models, retain counterexamples and bounds, and connect useful traces to implementation tests without claiming a whole-program proof.
Security Audit
Security audit patterns for PHP applications following OWASP guidelines. Covers XXE, SQL injection, XSS, CSRF detection, CVSS v3.1 scoring, and secure coding practices. By Netresearch.
Enterprise Readiness
Assess and enhance software projects for enterprise-grade security, quality, and automation. Includes supply chain security (SLSA, signing, SBOMs), quality gates, and platform-specific hardening with dynamic scoring.
DevOps & Infrastructure
Build, ship, automate.
Docker Development
Docker image development patterns for Dockerfile, docker-compose, docker-bake.hcl, and .dockerignore. Multi-stage builds, layer optimization, CI testing patterns (entrypoint bypass, DNS mocking, compose validation), Docker Bake multi-platform, Trivy scanning, network isolation. By Netresearch.
Concourse CI
Expert guidance for Concourse CI pipeline development, optimization, and troubleshooting. Pipeline creation, git/registry-image resources, job lifecycle hooks, YAML anchors, multi-branch pipelines with set_pipeline, oci-build-task, and gotchas like tag detection after force-push. Concourse v8.0+.
Go Development
Go (Golang) development patterns following best practices for cloud-native applications. Covers project structure, error handling, concurrency patterns, testing strategies, Docker containerization, LDAP integration, and resilience patterns. By Netresearch.
Git Workflow
Git workflow best practices for teams and CI/CD pipelines. Covers Git Flow, GitHub Flow, Trunk-based development, Conventional Commits, pull request workflows, and GitHub Actions integration. By Netresearch.
GitHub Project
GitHub repository setup and platform-specific features. Branch protection, CODEOWNERS, Issues/Discussions/Projects, PR review workflows with conversation resolution, Dependabot/Renovate auto-merge, and GitHub Releases. Platform-only — CI/CD and security live in sibling skills. By Netresearch.
GitHub Release
Safe, automated GitHub releases with supply chain security. Prevents dangerous gh release commands, orchestrates version bumps, signed tags, and CI-driven releases across ecosystems.
Jujutsu Workflow
Stop coding agents losing work and corrupting branch state in git: use Jujutsu (jj) as the local change layer — reversible op-log undo, conflicts-as-data, non-interactive history surgery — while Git stays the canonical remote/PR/CI interface. Proven with evals to beat pure git for agents.
Productivity & Integration
Daily-driver tooling for engineers and teams.
Jira Integration
Comprehensive Jira integration with auto-detection of issue keys. Two specialized skills: jira-communication for API operations and jira-syntax for wiki markup validation and templates.
Matrix Communication
Agentic Skill for Matrix chat communication. Send messages to Matrix rooms on behalf of users via access token authentication. Works with any Matrix homeserver.
CLI Tools
Automatic CLI tool management for coding agents. Detects missing tools from 'command not found' errors and installs via optimal package managers. 100+ tool catalog (ripgrep, fd, jq, docker, terraform, etc.), project environment auditing, batch updates across Python, Node, Rust, Go, PHP, Ruby.
Context7
Fetch up-to-date library documentation via Context7 REST API. Lightweight alternative to Context7 MCP with no persistent context overhead. Covers 50+ libraries including React, Next.js, Vue, Express, Prisma, and more.
Data Tools
Structured data manipulation with jq, yq, dasel, and qsv. Teaches agents to use proper tools instead of grep/sed/awk on JSON, YAML, TOML, XML, and CSV files. Includes cookbook patterns for API responses, CI configs, and data pipelines.
File Search
Efficient code and file search using ripgrep, ast-grep, fd, rga, tokei, and scc. Provides tool selection guidance, targeting strategies, and progressive search refinement patterns to minimize token usage and maximize search accuracy.
German Technical Writing
Enforce natural German technical register in Jira tickets, internal docs and team chat. Catches English→German anglicisms (brechen, gefangen, triggern, failen) and substitutes canonical verbs (werfen, abfangen, auslösen, fehlschlagen). Accepts Denglisch loanwords. Skips commit messages.
Peer QA Review
Round-1 IT QA peer-review runbook: lifecycle, checklist, severity vocabulary, structured Jira comment template, edge cases, anti-patterns. Triggers on QA-status tickets, 'ready for QA' comments, and explicit IT QA / peer review / quality gate requests. Generic; defers to team-specific overrides.
Markdown to PDF
Convert Markdown files to styled PDFs using WeasyPrint. Generic, brand-neutral default styling with --css override for branded output (e.g., apply the markdown-pdf.css asset shipped by netresearch-branding-skill for Netresearch-branded PDFs).
Brand & visual identity
Visual conventions for Netresearch artifacts.
Netresearch Branding
Implement Netresearch brand guidelines in web projects with comprehensive color system, typography (Raleway, Open Sans, Calibri), responsive component library, and production-ready templates. WCAG AA accessibility compliance, social media specs, and complete web design patterns.
Built by Netresearch
Netresearch DTT GmbH develops and publishes Agent Skills for TYPO3, software engineering and team workflows. Each entry links to the repository that maintains its instructions and tools.
The source README describes the package. Requirements, executable tools and installer support vary; check them before using a skill in your project.
How to use it
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1. Add the marketplace
/plugin marketplace add netresearch/claude-code-marketplace -
2. Install a skill
/plugin install typo3-conformance@netresearch-claude-code-marketplace -
Alternative: install instructions with npx
npx skills add https://github.com/netresearch/typo3-conformance-skill --skill typo3-conformance
Open standard
The instructions use the Agent Skills format, supported by Claude Code, Cursor, GitHub Copilot, Codex, Gemini CLI and other agents. Hooks, commands and runtime dependencies depend on the package and installer.