explain-error

Explain compiler diagnostics and apply validated fixes with previews.

Updated Mar 13, 2026
One-click install
npx skills add https://github.com/darylmcd/Roslyn-Backed-MCP --skill explain-error-darylmcd
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: explain-error
Source: https://github.com/darylmcd/Roslyn-Backed-MCP/tree/main/skills/explain-error
Command: npx skills add https://github.com/darylmcd/Roslyn-Backed-MCP --skill explain-error-darylmcd

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Explain compiler errors and warnings in plain language and surface actionable fixes for a given diagnostic ID or file:line.

Core Features & Use Cases

  • Diagnostic explanation: Convert cryptic compiler messages into plain-language explanations with context and potential causes.
  • Contextual insights: Provide surrounding code context via source retrieval and optional symbol information to clarify issue origin.
  • Fix preview and batch support: Suggest safe fixes, preview changes, and optionally apply fixes across a single file, project, or solution.

Quick Start

Input a diagnostic ID (e.g., CS0246) or a file path with line number (e.g., src/MyFile.cs:42) to start the diagnostic explain-and-fix workflow.

Frequently Asked Questions about explain-error

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

FAQPage Schema
How do I fix C# compiler errors using a diagnostic ID?

To fix C# compiler errors, input a diagnostic ID like CS0246 or a file path with a line number. The system explains the error in plain language, suggests safe fixes, previews code changes, and validates them with a compile check before applying.

What is the best way to explain cryptic C# warnings in plain language?

Explaining C# warnings involves retrieving surrounding source context and optional symbol information to clarify the issue origin. The system converts cryptic compiler messages into plain-language explanations with context and potential causes for accurate diagnosis.

Can I batch fix compiler diagnostics across an entire C# project?

Yes, you can batch fix compiler diagnostics across a single file, project, or solution. The system suggests safe fixes, previews changes, and optionally applies them across the entire scope after user confirmation and compile validation.

Does this C# diagnostic tool require an MCP server to function?

The C# diagnostic tool operates with MCP server discovery to support its multi-step workflow. It requires no external dependencies, utilizing the server discovery mechanism to explain, fix, apply, and batch fix code issues safely.

Why does the code fix require user confirmation before applying changes?

The code fix requires user confirmation to ensure safe modifications before applying changes. It operates a multi-step workflow—explain, fix, apply, batch fix—previewing code changes and validating with a compile check to prevent unsafe alterations.

What context is needed to explain C# diagnostics from a specific file?

To explain C# diagnostics from a specific file, you provide a file path with a line number, such as src/MyFile.cs:42. The system retrieves surrounding source context and optional symbol information to clarify the issue origin.