Source Maps Skill

Overview

Expert skill for generating and consuming source maps for debugging compiled code.

Capabilities

• Generate source maps in various formats (V3 JSON, DWARF)
• Map generated positions to original source
• Handle inlined functions in source maps
• Implement source map composition/chaining
• Generate VLQ-encoded mappings
• Support names array for identifiers
• Handle multi-file source map indices
• Integrate with debuggers and stack traces

Target Processes

• source-map-generation.js
• code-generation-llvm.js
• debugger-adapter-development.js
• jit-compiler-development.js

Dependencies

Source map V3 specification

Usage Guidelines

1. Accuracy: Ensure precise mapping between generated and original positions
2. Inlining: Handle inlined code with multiple source locations
3. Composition: Support chaining for multi-stage compilation
4. Efficiency: Use VLQ encoding for compact representations
5. Integration: Test with actual debuggers to verify correctness

Output Schema

{
  "type": "object",
  "properties": {
    "format": {
      "type": "string",
      "enum": ["v3-json", "dwarf", "pdb"]
    },
    "features": {
      "type": "array",
      "items": { "type": "string" }
    },
    "inlineSupport": { "type": "boolean" },
    "generatedFiles": {
      "type": "array",
      "items": { "type": "string" }
    }
  }
}