DialyzerJson (dialyzer_json v0.2.0)

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AI-friendly JSON output for Dialyzer warnings.

Provides structured JSON output for dialyzer warnings optimized for AI code editors (Claude Code, Cursor, etc.) that need to parse warnings programmatically.

Usage

mix dialyzer.json              # JSON output to stdout
mix dialyzer.json --quiet      # Suppress non-JSON output for clean piping
mix dialyzer.json --summary-only   # Counts by type without details

JSON Structure

Each warning is output as:

{
  "file": "lib/foo.ex",
  "line": 42,
  "column": 5,
  "function": "bar/2",
  "module": "Foo",
  "warning_type": "no_return",
  "message": "Function has no local return",
  "raw_message": "Function bar/2 has no local return.",
  "fix_hint": "code"
}

The fix_hint field indicates the likely fix category:

  • "spec" - Likely needs typespec fix
  • "code" - Likely a real bug
  • "pattern" - Common safe-to-ignore pattern
  • "unknown" - Unrecognized warning type