Error Messages Skill
Overview
Expert skill for designing and implementing high-quality compiler error messages.
Capabilities
- Design clear, actionable error message templates
- Implement source context display with underlines
- Generate fix suggestions and quick fixes
- Handle error cascades and suppression
- Implement multi-span error annotations
- Support machine-readable error output (JSON)
- Implement color/styled terminal output
- Design error recovery strategies for better diagnostics
Target Processes
- error-message-enhancement.js
- parser-development.js
- type-system-implementation.js
- semantic-analysis.js
- lsp-server-implementation.js
Dependencies
Elm/Rust error message guidelines
Usage Guidelines
- Clarity: Make error messages clear and actionable
- Context: Show relevant source code context with precise location
- Suggestions: Provide fix suggestions when possible
- Cascades: Suppress cascading errors to avoid overwhelming users
- Machine-Readable: Support JSON output for tooling integration
Output Schema
{
"type": "object",
"properties": {
"errorFormat": {
"type": "string",
"enum": ["human", "json", "sarif"]
},
"features": {
"type": "array",
"items": { "type": "string" }
},
"colorSupport": { "type": "boolean" },
"generatedFiles": {
"type": "array",
"items": { "type": "string" }
}
}
}