Issue #2242 asks Homeboy core to move compiler-warning collection and compiler-warning fix generation behind extension-owned contracts. Validation and formatting already have extension script contracts (scripts.validate and scripts.format), but compiler warnings do not.

Required Upstream Contract

Homeboy core needs an extension manifest contract for two separate capabilities before src/core/code_audit/compiler_warnings.rs and src/core/refactor/plan/generate/compiler_warning_fixes.rs can be made language-agnostic without dropping behavior.

1. scripts.compiler_warnings

   • Runs from the component root.
   • Receives JSON on stdin with at least { "root": string }.
   • Emits a generic warnings envelope on stdout.
   • Core maps the envelope to AuditFinding::CompilerWarning findings.

2. scripts.compiler_warning_fixes

   • Runs from the component root after compiler warning findings exist.
   • Receives JSON on stdin with { "root": string, "findings": [...] }.
   • Emits a generic fix-suggestion envelope on stdout.
   • Core maps line removals and line replacements to existing refactor primitives.

Proposed Warning Envelope

{
  "warnings": [
    {
      "code": "unused_imports",
      "message": "unused import",
      "file": "src/lib.rs",
      "line": 3,
      "suggestion": "Remove the unused import"
    }
  ]
}

Proposed Fix Envelope

{
  "fixes": [
    {
      "file": "src/lib.rs",
      "kind": "line_replacement",
      "line_start": 6,
      "line_end": 6,
      "original_text": "mut ",
      "replacement": "",
      "message": "Remove unused mut"
    }
  ]
}

scripts.compiler_warnings

Blocker

scripts.compiler_warning_fixes