TYPO3 conventions
Generic agents don't know PSR-12 quirks, TCA, FlexForms, or how DDEV expects extensions to be wired.
You ship code. Your agent should know your stack.
40 curated Agent Skills for TYPO3, PHP, Go, Docker, Jira, security, and documentation — portable across Claude Code, Cursor, Copilot, Codex, Gemini CLI, and 30+ other agents.
/plugin marketplace add netresearch/claude-code-marketplaceGeneric AI misses the conventions you ship against every day
Hardening expectations
Supply-chain security, SBOMs, OpenSSF Scorecard, signed releases — not the defaults out of the box.
Operational shape
Concourse pipelines, Matrix notifications, Jira workflows, Netresearch CI — generic suggestions need rework.
One install. Forty skills. Every supported agent.
40
curated skills
7
categories
8+
supported agents
The improvement loop
Three skills keep every other skill honest
Most marketplaces ship a list. This one ships a loop. Harness onboards your repo, Assessment audits the work against the same checkpoints we publish, and Retro feeds every friction back into rules, checkpoints, and skill PRs — including the harness itself.
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Harness
Makes a repo agent-ready
AGENTS.md as index, docs/ structure, CI verification, enforcement mechanisms — the scaffolding every other skill assumes.
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Assessment
Audits the work
Runs checkpoint-enabled skills against the codebase — coverage, mutation score, release readiness, mechanical and LLM-assisted reviews.
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Retro
Feeds learnings back
Detects friction across a session and materialises it into user memory, project rules, skill PRs, checkpoints, or harness artefacts.
Retro feeds learnings back into Harness, Assessment checkpoints, and every other skill in this catalog.
Pick by what you ship
Skills grouped by the surfaces they touch. Categories are the AGENTS.md canonical enum; thematic groupings are surface for discovery.
Install via
Universal Agent Skills CLI from skills.sh — works across Claude Code, Cursor, GitHub Copilot, Codex, Gemini CLI and 30+ more agents.
Requires netresearch/composer-agent-skill-plugin — resolves Agent Skills as Composer dependencies in PHP projects, auto-discovers skills, generates AGENTS.md.
Provided by netresearch/composer-agent-skill-plugin — pins skill repos directly without going through Packagist, locks them in composer.skills.lock.
The improvement loop
Three meta-skills that keep every other skill in this catalog honest — onboard a repo, audit the work, feed learnings back.
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.
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 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
WCAG 2.1 AA accessibility patterns for TYPO3 projects. Document structure, landmarks, links, buttons, color contrast, focus management, ARIA, and automated testing. 7 implementation patterns: skip links, accessible navigation, forms, filters, disclosure widgets, clickable cards, responsive tables.
TYPO3 Frontend Patterns
Reusable frontend patterns for TYPO3 v13+ sitepackages with Fluid, TypeScript, and SCSS. Includes sticky header, lazy loading, breadcrumb with JSON-LD, language switcher, scroll animations, scroll-to-anchor, skeleton loading, toast notifications, and back-to-top.
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.
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.
Productivity & Integration
Daily-driver tooling for engineers and teams.
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.
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. 74+ 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.
PageRangers SEO
PageRangers SEO API integration for AI assistants. Query keyword rankings, SERP analysis, project KPIs, and keyword opportunities via the PageRangers Monitoring API. Includes credential detection hook for guided setup.
Coach
Self-improving learning system that detects friction signals (corrections, tool failures, repetition) and proposes rule updates. Includes /coach slash commands for reviewing, approving, and managing learning candidates. Auto-configures hooks for signal detection.
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).
Built by Netresearch
Netresearch DTT GmbH is a TYPO3 agency in Leipzig that ships production LMS, e-commerce, and enterprise CMS workloads daily. These skills aren't experiments — they are the patterns our engineers reach for on real client work.
We open-source the patterns we trust ourselves with. Every skill in this marketplace runs on at least one Netresearch 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 -
3. Or use it from any agent
npx skills add https://github.com/netresearch/typo3-conformance-skill --skill typo3-conformance
Open standard
Built on the Agent Skills spec — portable across Claude Code, Cursor, GitHub Copilot, OpenAI Codex, Gemini CLI, Amp, Goose, Roo Code, OpenCode, and 30+ more agents.