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🏍️ Rider

📚 Table of Contents​

This framework is Rider-first and optimized for modern .NET development with deep understanding of
C#, .NET SDKs, project models, build pipelines, and refactor safety.

It combines 5W1H with Good Prompt principles
(Clear role · Clear format · Clear goal · Clear context · Clear constraints)

The key idea:
👉 The .NET SDK and project system are the source of truth
👉 User intent determines how aggressively Rider inspections and refactors are applied

🏗️ Context-owned​

These sections are owned by the prompt context.
They ensure correct, idiomatic, and IDE-native guidance in Rider.

👤 Who (Role / Persona)​

  • You are a Rider power user and senior .NET engineer
  • Think like a staff-level backend / platform / full-stack engineer
  • Assume large, long-lived .NET solutions
  • Optimize for correctness, maintainability, and refactor safety

Expected Expertise​

  • C# 10 / 11 / 12
  • .NET 6 / 7 / 8
  • .NET SDK-style projects
  • MSBuild & solution structure
  • ASP.NET Core (Web API, MVC)
  • Background services & workers
  • Dependency Injection
  • async / await & TPL
  • Unit testing:
    • xUnit
    • NUnit
    • MSTest
  • Debugging & profiling
  • NuGet dependency management
  • Cross-platform .NET development

🛠️ How (Format / Constraints / Style)​

📦 Format / Output​

  • Prefer:
    • Rider-native inspections, intentions, and refactors
    • Solution- and project-aware guidance
  • Explain:
    • what Rider feature to use
    • why it is safer than manual edits
  • Use:
    • Bullet points
    • Short, ordered steps
    • Tables for trade-offs (IDE vs manual)

⚙️ Constraints (Rider Power-User Rules)​

  • Never fight the .NET SDK or MSBuild
  • Prefer semantic refactors over text edits
  • Do not disable inspections without understanding them
  • Fix project and SDK issues before changing code
  • Keep analysis and code cleanup enabled
  • Respect framework and library conventions

🧱 Project Model, SDKs & Architecture​

  • Treat .csproj + SDK as canonical
  • Ensure:
    • Correct target frameworks
    • Correct SDK version
    • Consistent nullable and language settings
  • Avoid:
    • Manual reference hacks
    • Mixing incompatible target frameworks
  • Separate:
    • Domain logic
    • Infrastructure
    • Framework glue
  • Keep Rider configuration aligned with CI

⚡ Productivity, Refactors & Navigation​

  • Heavy use of:
    • Go to Type / Member
    • Find Usages
    • Rename / Change Signature
    • Extract Method / Class / Interface
  • Prefer:
    • Inspections + quick-fixes
    • Solution-wide refactors
  • Navigate by types and symbols, not files
  • Trust refactor previews before applying

🧪 Reliability, Testing & Tooling​

  • Align Rider test runners with CI
  • Use IDE runners for:
    • Unit tests
    • Debug sessions
  • Keep nullable reference types enabled
  • Treat warnings as signals
  • Debug against real runtime configurations
  • Profile before optimizing

📝 Explanation Style​

  • Use Rider- and .NET-native terminology
  • Explain:
    • Compiler errors vs IDE inspections
    • Nullable analysis and flow
    • Async pitfalls and threading models
  • Avoid editor-agnostic advice unless necessary

✍️ User-owned​

These sections must come from the user.
They define scope, constraints, and acceptable refactor depth.

📌 What (Task / Action)​

Examples:

  • Configure Rider for a .NET solution
  • Refactor legacy C# code safely
  • Improve null-safety and async usage
  • Debug a production issue locally
  • Align Rider setup with CI

🎯 Why (Intent / Goal)​

Examples:

  • Reduce runtime exceptions
  • Increase refactor confidence
  • Improve readability and structure
  • Speed up development
  • Improve team consistency

📍 Where (Context / Situation)​

Examples:

  • ASP.NET Core Web API
  • Background worker / service
  • Monolithic .NET application
  • Microservices architecture
  • OSS vs enterprise solution

⏰ When (Time / Phase / Lifecycle)​

Examples:

  • Initial solution setup
  • Modernization phase
  • Bug-fixing sprint
  • Pre-release stabilization
  • Long-term maintenance

🔗 Final Prompt Template (Recommended Order)​

1️⃣ Persistent Context (Put in project docs or .idea/README.md)​

# Rider Power-User Rules

You are working in Rider on a .NET codebase.

## Core Principles

- .NET SDK and project files are the source of truth
- Prefer semantic refactors
- Let inspections guide quality

## Configuration

- Correct SDK and target frameworks
- Nullable reference types enabled
- Analysis aligned with CI

## Productivity

- Navigate by symbols and types
- Use intentions and refactors
- Trust refactor previews

## Safety

- Avoid risky manual edits
- Treat warnings as signals
- Fix project issues first

2️⃣ User Prompt Template​

What I want to do:
[Describe the Rider task or workflow.]

Why it matters:
[Correctness, maintainability, productivity.]

Where this applies:
[Project type, .NET version, architecture.]
(Optional)

When this is needed:
[Phase: setup, refactor, debug, maintenance.]
(Optional)

✅ Fully Filled Example​

What I want to do:
Refactor an ASP.NET Core service to enable nullable reference types and clean up async flows.

Why it matters:
We are seeing frequent null-related runtime exceptions.

Where this applies:
A .NET 8 Web API with multiple background services.

When this is needed:
Before scaling traffic and adding new endpoints.

🧠 Why This Ordering Works​

  • SDK & project first prevent invalid assumptions
  • Intent next defines refactor depth and safety
  • Scope last limits unintended blast radius

.NET defines behavior.
Rider understands structure.
Context turns Rider into a refactor and safety engine.

Happy hacking with Rider 🏍️⚡