{
 "tool": "skill:mutation-testing",
 "name": "mutation-testing",
 "kind": "Skill",
 "source": "Favz census",
 "built": "2026-10-02",
 "html": "https://favz.co/tools/skill-mutation-testing.html",
 "markdown": "https://favz.co/tools/skill-mutation-testing.md",
 "repos_now": 27,
 "repos_ever": 34,
 "still_have_it": 0.794,
 "share_of_census_repos_with_any_tool": 0.00056,
 "repos_by_month": [
  {
   "month": "2025-10",
   "repos_at_month_end": 1
  },
  {
   "month": "2025-12",
   "repos_at_month_end": 2
  },
  {
   "month": "2026-01",
   "repos_at_month_end": 4
  },
  {
   "month": "2026-02",
   "repos_at_month_end": 6
  },
  {
   "month": "2026-03",
   "repos_at_month_end": 8
  },
  {
   "month": "2026-04",
   "repos_at_month_end": 12
  },
  {
   "month": "2026-05",
   "repos_at_month_end": 17
  },
  {
   "month": "2026-06",
   "repos_at_month_end": 20
  },
  {
   "month": "2026-07",
   "repos_at_month_end": 21
  },
  {
   "month": "2026-08",
   "repos_at_month_end": 27
  }
 ],
 "note_on_last_days": "The last few days always look low, because repos found later fill them in.",
 "goes_with": [
  {
   "tool": "skill:sharp-edges",
   "name": "sharp-edges",
   "kind": "Skill",
   "repos_with_both": 5,
   "lift": 449.0,
   "json": "https://favz.co/tools/skill-sharp-edges.json"
  },
  {
   "tool": "skill:contract-testing",
   "name": "contract-testing",
   "kind": "Skill",
   "repos_with_both": 5,
   "lift": 345.38,
   "json": "https://favz.co/tools/skill-contract-testing.json"
  },
  {
   "tool": "skill:testing",
   "name": "testing",
   "kind": "Skill",
   "repos_with_both": 5,
   "lift": 46.05,
   "json": "https://favz.co/tools/skill-testing.json"
  }
 ],
 "min_shared_repos_for_a_pair": 5,
 "same_pack": []
}