output.json

{
  "schema_version": "1.0",
  "status": "complete",
  "reviewer": "gemini",
  "skill": "review-work",
  "scope_actually_reviewed": {
    "git_range": "HEAD~3..HEAD",
    "files_read": [
      "CLAUDE.md",
      ".claude/rules/impl-hygiene.md",
      ".claude/rules/tests.md",
      ".claude/rules/llvm.md",
      ".claude/rules/arc.md",
      ".claude/skills/dual-tpr/findings-schema.json",
      "compiler/ori_llvm/src/codegen/arc_emitter/builtins/collections/list_builtins/mod.rs",
      "compiler/ori_llvm/src/codegen/arc_emitter/builtins/iterator.rs",
      "compiler/ori_llvm/src/codegen/arc_emitter/builtins/iterator_consumers.rs",
      "compiler/ori_llvm/src/codegen/arc_emitter/builtins/trampolines.rs",
      "compiler/ori_llvm/src/codegen/arc_emitter/narrowing_codegen.rs",
      "compiler/ori_llvm/tests/aot/narrowing.rs",
      "plans/bug-tracker/fix-BUG-04-071.md",
      "plans/bug-tracker/section-04-codegen-llvm.md",
      "tests/spec/traits/iterator/map_narrowed_list.ori",
      "compiler/ori_rt/src/iterator/adapters.rs",
      "compiler/ori_rt/src/iterator/next.rs"
    ],
    "rules_consulted": [
      ".claude/rules/impl-hygiene.md",
      ".claude/rules/tests.md",
      ".claude/rules/llvm.md"
    ],
    "specs_consulted": [],
    "plans_consulted": [
      "plans/bug-tracker/fix-BUG-04-071.md",
      "plans/bug-tracker/section-04-codegen-llvm.md"
    ],
    "expanded_beyond_packet": true,
    "expansion_reason": "Traced ori_iter_map into ori_rt to verify its signature and buffer sizing behavior, confirming the canonical sizing implementation is sound."
  },
  "findings": [
    {
      "ordinal": 1,
      "severity": "minor",
      "location": "compiler/ori_llvm/src/codegen/arc_emitter/builtins/trampolines.rs:164",
      "title": "Remove dead sext branches and unused variables from trampolines",
      "evidence": "The fix hardcoded `let needs_sext = false;` and `let buf_elem_llvm_ty = elem_llvm_ty;` but left 5 downstream `if needs_sext { ... } else { ... }` branches across all trampoline map/filter/fold variants. The plan explicitly instructed to simplify trampolines: 'The needs_sext flag and buf_elem_llvm_ty vs elem_llvm_ty distinction become unnecessary. Simplify to always use canonical types'.",
      "impact": "BLOAT/WASTE. Unused complexity and dead branches left in a hot codegen path, violating the cleanup rule.",
      "required_plan_update": "Add a task to `fix-BUG-04-071.md` (or a followup hygiene pass) to physically remove `needs_sext`, `buf_elem_llvm_ty`, and their associated `if/else` sext emission branches from `trampolines.rs`.",
      "layer": "committed",
      "basis": "direct_file_inspection",
      "confidence": "high",
      "citations": []
    },
    {
      "ordinal": 2,
      "severity": "informational",
      "location": "tests/spec/traits/iterator/map_narrowed_list.ori:1",
      "title": "Spec test file uses snake_case instead of kebab-case",
      "evidence": "File is named `map_narrowed_list.ori`. `.claude/rules/impl-hygiene.md` §Test Hygiene states: 'Ori spec tests use kebab-case matching the feature: tests/spec/traits/iterator/map-filter-collect.ori'.",
      "impact": "Minor stylistic inconsistency (though the directory already contains many snake_case files).",
      "required_plan_update": "Rename to `map-narrowed-list.ori` or ignore if the directory convention allows snake_case.",
      "layer": "committed",
      "basis": "direct_file_inspection",
      "confidence": "high",
      "citations": []
    }
  ],
  "no_findings": false,
  "verification": {
    "tests_rerun": [
      "./test-all.sh"
    ],
    "diagnostics_run": [],
    "verification_gaps": []
  }
}