extension-building

Create Rust extensions for systemprompt.io with traits, schemas, API routes, and jobs.

2|Updated Feb 24, 2026
One-click install
npx skills add https://github.com/systempromptio/systemprompt-marketplace --skill extension-building
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: extension-building
Source: https://github.com/systempromptio/systemprompt-marketplace/tree/main/plugins/development/skills/extension-building
Command: npx skills add https://github.com/systempromptio/systemprompt-marketplace --skill extension-building

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Design and implement robust Rust-based extensions for systemprompt.io, including architecture, traits, schemas, API routes, and background jobs.

Core Features & Use Cases

  • Architecture & Traits: define extension interfaces, domain models, and trait implementations.
  • Schemas & API: design database schemas and HTTP API surfaces for extensions.
  • Jobs & Migrations: schedule and run background tasks with safe migrations and automated code reviews.

Quick Start

Begin by scaffolding a new Rust extension under extensions/your-extension and implement the required API, schemas, and job hooks following this guide.

Frequently Asked Questions about extension-building

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I build Rust extensions for systemprompt.io?

Build Rust extensions by scaffolding projects under extensions/your-extension, then implement architecture, traits, schemas, API routes, and background jobs. Follow Rust idioms and use the extension trait with the registration macro to wire components into the systemprompt.io platform.

What is the best way to structure an MCP server in Rust?

Structure an MCP server using domain models, trait implementations, and repository-based SQL access. Define extension interfaces, design database schemas, and schedule background jobs to ensure maintainable patterns for production deployments.

How do I design database schemas and API routes for Rust extensions?

Design database schemas and HTTP API surfaces by defining domain models and trait implementations. Use repository-based SQL access for safe migrations, ensuring the extension architecture remains maintainable and fulfills Rust idioms.

Can I schedule background jobs and automated code reviews in Rust extensions?

Yes, Rust extensions support scheduling and running background jobs with safe migrations. You can implement job hooks and integrate automated code reviews to maintain production deployment quality and enforce maintainable patterns.

What are the requirements for wiring Rust extensions via the extension trait?

Wiring Rust extensions requires implementing the extension trait and using the registration macro. You must define extension interfaces, apply repository-based SQL access, and fulfill Rust idioms to properly integrate with the systemprompt.io architecture.

When should I use Rust for building systemprompt.io extensions instead of other approaches?

Use Rust for systemprompt.io extensions when you need robust architecture, type-safe trait implementations, and repository-based SQL access. It provides maintainable patterns for production deployments, including safe migrations and structured API routes.