{
  "id": "P278",
  "slug": "ruby-3-4-nkf-bundled-gem-default-gem-removed-nkf",
  "status": "search-observed",
  "product": "Ruby 3.4",
  "family": "Runtime bundled-library drift",
  "canonical_url": "https://gitdocs.org/fix/ruby-3-4-nkf-bundled-gem-default-gem-removed-nkf",
  "query_alias_url": "https://gitdocs.org/q/ruby-3-4-nkf-bundled-gem-default-gem-removed-nkf",
  "markdown_url": "https://gitdocs.org/fix/ruby-3-4-nkf-bundled-gem-default-gem-removed-nkf.md",
  "json_url": "https://gitdocs.org/api/fixes/ruby-3-4-nkf-bundled-gem-default-gem-removed-nkf.json",
  "canonical_query": "Ruby 3.4 nkf bundled gem default gem removed nkf",
  "observed_codex_queries": [
    "Ruby 3.4 nkf bundled gem default gem removed nkf",
    "site:stdgems.org nkf Ruby 3.4 default bundled",
    "ruby 3.4.0 NEWS bundled gems nkf",
    "Ruby 3.4 NEWS default gems bundled gems",
    "https://docs.ruby-lang.org/en/master/NEWS/NEWS-3_4_0_md.html",
    "'nkf' in https://docs.ruby-lang.org/en/master/NEWS/NEWS-3_4_0_md.html"
  ],
  "organic_dependency_search_count": 6,
  "affected_versions": "",
  "exact_errors": [],
  "diagnosis": "A library was historically part of the default runtime install but is now only bundled/optional, so project dependency files may not mention it.",
  "before": "",
  "after": "",
  "verification": "Verifier checks an explicit dependency or supported replacement and a clean install.",
  "unsafe_fixes": [
    "Changing local code without checking the current external contract.",
    "Retrying the same install, build, or API call with no version/source change.",
    "Applying a broad unsafe bypass when a narrow compatibility fix is available."
  ],
  "last_verified_at": "2026-06-25",
  "neutral_validation": {
    "organic_search_observed": true,
    "organic_strict_pass": true,
    "no_web_counterfactual_run": false,
    "no_web_strict_pass": null,
    "search_necessity_under_fixture": null,
    "no_web_oracle_note": "Observed query evidence is separated from necessity proof; no-web and stale-contract counterfactuals should be tracked separately."
  },
  "source_trail": [
    {
      "url": "https://www.ruby-lang.org/en/news/2024/12/25/ruby-3-4-0-released/",
      "label": "Ruby 3.4 release"
    },
    {
      "url": "https://docs.ruby-lang.org/en/master/NEWS/NEWS-3_4_0_md.html",
      "label": "Official reference opened by Codex"
    }
  ],
  "source_github_links": []
}