Docker Sandboxes (sbx) expertise: run and operate sandboxes, author kits and template images, wire MCP servers through the gateway, govern a fleet, and work out why a sandbox cannot reach, build, or keep something.

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core🔌Plugin

Shared agent defaults for every project: conventions, tools, and always-on behavior.

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slurpyb/skills🏪Marketplace

Marketplace

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design-eng-skills🔌Plugin

State machine design, changeset writing, engineering writing, and component API design skills.

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shopify-plugin🔌Plugin

Search Shopify docs, generate and validate GraphQL, Liquid, and UI extension code.

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mattpocock-skills🔌Plugin

Matt Pocock's agent skills for real engineering — grilling, spec/ticket flows, TDD, code review, domain modelling and more. Plug-and-play, not vibe coding.

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fuse-prompt-engineer🔌Plugin

Expert Prompt Engineer with Context Engineering, Meta-Prompting, Chain-of-Thought, Few-Shot, Agent Design, 50+ Template Library, and A/B Testing

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astro-agent🔌Plugin

Astro expertise for coding agents: current docs via MCP, project conventions, and a specialist subagent for .astro sites, Content Collections, islands, adapters, Starlight, actions, and i18n.

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research🔌Plugin

Research workflows and skills.