Sylius Ai Dev Skills

Sylius AI Dev Skills

Claude Code skills marketplace for building Sylius 2.x features idiomatically.

About

Sylius AI Dev Skills is a Claude Code plugin marketplace for Sylius. It bootstraps the AI-assisted Sylius developer experience with opinionated skills that teach the agent how to register resources, place TwigHooks, build admin grids, send transactional email, react to domain events, and refuse the anti-patterns that plague generated Sylius code.

Skills are the control plane - when and why to apply a Sylius idiom and which anti-patterns to refuse. They pair with the Sylius Mate Extension MCP server, which is the data plane: live introspection of the host project's booted Symfony kernel (resources, hooks, routes, grids, mailer config, installed plugins).

The skills work without the Mate Extension, but expect a degraded experience - the agent marks unverifiable claims as ⚠ unverified and falls back to memory-only rules.

> Looking for one-shot setup? Use sylius/sylius-ai-dev-tools - a dev-only Composer pack that bootstraps the full AI experience in a Sylius project: installs the Mate Extension MCP server, registers this skills marketplace, and installs the sylius-dev skill in Claude Code, all from vendor/bin/sylius-ai init.

Documentation

The sylius-dev skill ships its full prompt under [sylius-dev/skills/sylius-dev/](sylius-dev/skills/sylius-dev/):

• [SKILL.md](sylius-dev/skills/sylius-dev/SKILL.md) - mental model, MCP protocol, hard rules.
• [workflow.md](sylius-dev/skills/sylius-dev/workflow.md) - 13-step build checklist with MCP calls and verify commands.
• [anti-patterns.md](sylius-dev/skills/sylius-dev/anti-patterns.md) - ❌/✅ pairs per hard rule, with rationale.
• [reference/](sylius-dev/skills/sylius-dev/reference/) - deep dives on resource, twig-hooks, mailer, events.

General Sylius documentation is available at docs.sylius.com.

Installation

Quick bootstrap (recommended)

Use the sylius/sylius-ai-dev-tools pack inside your Sylius 2.x project:

composer require --dev sylius/sylius-ai-dev-tools
vendor/bin/sylius-ai init

That single command installs the Mate Extension MCP server, registers this marketplace, and installs the sylius-dev skill in Claude Code. Restart Claude Code afterwards.

Manual install

Add the marketplace and install the plugin from inside Claude Code:

/plugin marketplace add Sylius/sylius-ai-dev-skills
/plugin install sylius-dev@sylius-ai-dev-skills

Or point Claude Code at a local clone:

/plugin marketplace add /path/to/sylius-ai-dev-skills
/plugin install sylius-dev@sylius-ai-dev-skills

Then ask Claude Code something like:

> Add a back-in-stock notification resource with admin grid, frontend subscribe form, Doctrine listener on variant restock, async email handler.

The skill auto-activates on Sylius feature phrases (Sylius resource, add to product page, admin grid, Sylius email, etc.).

Available Skills

• sylius-dev - Build Sylius 2.x features idiomatically: resources, TwigHooks, admin grids, mailers, Doctrine listeners, async handlers, fixtures, migrations. Enforces ~40 refuse-rules covering form types, repository bindings, listener registration, email template layout, locale handling, route prefixes, and more.

Related Packages

For the full AI dev experience in Sylius, install only sylius/sylius-ai-dev-tools. It is the single entry point - a dev-only Composer pack that wires up everything end-to-end in one command:

• the Sylius Mate Extension MCP server (exposes the running Sylius kernel - resources, hooks, grids, routes, Twig helpers, mailer config, installed plugins - to AI assistants);
• this skills marketplace, with the sylius-dev skill registered in Claude Code.

You do not need to install Mate Extension separately. sylius-ai-dev-tools pulls it in transitively and runs its init/discover for you.

Contributing

Would like to help us build a more capable Sylius developer experience? Start from reading our Contribution Guide, then see [CONTRIBUTING.md](CONTRIBUTING.md) for skill-specific guidance.

Bug Tracking

If you want to report a bug or suggest an idea, please use GitHub issues.

Community Support

Get Sylius support on Slack, Forum or Stack Overflow.

MIT License

Sylius AI Dev Skills is released under the terms of the [MIT License](LICENSE).

Source & license

This open-source MCP server is cataloged on AgentStack and links to its original source — we do not rehost the code.

• Author: Sylius
• Source: Sylius/sylius-ai-dev-skills
• License: MIT
• Homepage: https://sylius.com

Install and usage instructions live in the source repository linked above.