{
  "schema": "skillreducer/research-table/1",
  "id": "prepared-facts",
  "study": "prepared-facts",
  "title": "Prepared facts, R9, three repetitions per arm",
  "evidence_class": "measured-local",
  "date": "2026-09-26",
  "commit": "52363d25071579bcd00029e20f4278c965578645",
  "source_documents": [
    {
      "path": "docs/experiments/PRECOMPUTE-2026-09-26.md",
      "commit": "52363d25071579bcd00029e20f4278c965578645",
      "committed": "2026-09-26"
    }
  ],
  "n_meaning": "Runs per arm behind the row: repetitions times tasks compared, or the graded runs of the eligibility check when the skill was not compared",
  "columns": [
    {
      "name": "skill",
      "description": "Skill slug in the AirMarket catalog"
    },
    {
      "name": "name",
      "description": "Skill name as listed"
    },
    {
      "name": "shape",
      "description": "Document shape (SPEC-003)"
    },
    {
      "name": "installs",
      "description": "Installs reported by the catalog"
    },
    {
      "name": "status",
      "description": "How far the skill got: compared, or the reason it stopped"
    },
    {
      "name": "status_superseded",
      "description": "Status under a superseded scoring rule, when a correction moved it"
    },
    {
      "name": "decision",
      "description": "Acceptance decision for a compared skill (SPEC-031 section 4)"
    },
    {
      "name": "accepted",
      "description": "Fewer total tokens, mission kept, no added tool calls, three repetitions agreeing"
    },
    {
      "name": "artifacts",
      "description": "Artifact kinds shipped, separated by semicolons"
    },
    {
      "name": "skill_md_unchanged",
      "description": "Whether SKILL.md stayed byte-identical"
    },
    {
      "name": "token_reduction",
      "description": "Median share of complete execution tokens saved; positive is cheaper"
    },
    {
      "name": "spread_min",
      "description": "Smallest per-repetition token reduction"
    },
    {
      "name": "spread_max",
      "description": "Largest per-repetition token reduction"
    },
    {
      "name": "straddles_zero",
      "description": "The repetitions disagree in sign, so the row is inconclusive"
    },
    {
      "name": "net_call_change",
      "description": "Change in median tool calls; positive means more calls"
    },
    {
      "name": "tokens_none",
      "description": "Median complete execution tokens, no skill"
    },
    {
      "name": "tokens_original",
      "description": "Median complete execution tokens, original skill"
    },
    {
      "name": "tokens_optimized",
      "description": "Median complete execution tokens, improved skill"
    },
    {
      "name": "score_none",
      "description": "Blind grade, no skill"
    },
    {
      "name": "score_original",
      "description": "Blind grade, original skill"
    },
    {
      "name": "score_optimized",
      "description": "Blind grade, improved skill"
    },
    {
      "name": "mission_preserved",
      "description": "The improved skill kept the original's grade on every task"
    },
    {
      "name": "retention_band",
      "description": "Diagnostic only: how much of the skill's contribution was kept"
    },
    {
      "name": "R",
      "description": "Repetitions per task per arm"
    },
    {
      "name": "tasks",
      "description": "Tasks compared, or tasks graded when the skill was not compared"
    },
    {
      "name": "cohorts",
      "description": "Selection cohorts the skill was drawn in: jev, trace, random"
    },
    {
      "name": "components",
      "description": "What the prepared-facts block gathers"
    },
    {
      "name": "jev_score",
      "description": "Jev's gathers_fixed_context score used to pick"
    },
    {
      "name": "subsumable_calls_per_run",
      "description": "Calls per original run the block could replace"
    },
    {
      "name": "n",
      "description": "Runs per arm behind the row: repetitions times tasks compared, or the graded runs of the eligibility check when the skill was not compared"
    },
    {
      "name": "evidence_class",
      "description": "Evidence class of the figure (SPEC.md section 20)"
    },
    {
      "name": "date",
      "description": "UTC day the study's last measured run landed"
    },
    {
      "name": "commit",
      "description": "Commit the figures come from: the committed data when the study has some, otherwise the latest commit of the document that reports it"
    }
  ],
  "rows": [
    {
      "skill": "product-vision",
      "name": "Product Vision",
      "shape": "reference-prose",
      "installs": 2585,
      "status": "compared",
      "status_superseded": null,
      "decision": "accepted",
      "accepted": true,
      "artifacts": "precompute",
      "skill_md_unchanged": false,
      "token_reduction": 0.4375,
      "spread_min": 0.4114,
      "spread_max": 0.4455,
      "straddles_zero": false,
      "net_call_change": -1,
      "tokens_none": 41596,
      "tokens_original": 53419,
      "tokens_optimized": 30050,
      "score_none": 0.6,
      "score_original": 0.8,
      "score_optimized": 0.8,
      "mission_preserved": true,
      "retention_band": "full",
      "R": 3,
      "tasks": 2,
      "cohorts": "random",
      "components": "listing;inputs",
      "jev_score": 0.27,
      "subsumable_calls_per_run": 1.5,
      "n": 6,
      "evidence_class": "measured-local",
      "date": "2026-09-26",
      "commit": "52363d25071579bcd00029e20f4278c965578645"
    },
    {
      "skill": "approachability-audit",
      "name": "Approachability Audit",
      "shape": "reference-prose",
      "installs": null,
      "status": "compared",
      "status_superseded": null,
      "decision": "accepted",
      "accepted": true,
      "artifacts": "precompute",
      "skill_md_unchanged": false,
      "token_reduction": 0.3241,
      "spread_min": 0.2996,
      "spread_max": 0.3326,
      "straddles_zero": false,
      "net_call_change": -1,
      "tokens_none": 21831,
      "tokens_original": 24913,
      "tokens_optimized": 16838,
      "score_none": 0.8,
      "score_original": 1,
      "score_optimized": 1,
      "mission_preserved": true,
      "retention_band": "full",
      "R": 3,
      "tasks": 1,
      "cohorts": "trace",
      "components": "listing;inputs",
      "jev_score": 0.23,
      "subsumable_calls_per_run": 2.333,
      "n": 3,
      "evidence_class": "measured-local",
      "date": "2026-09-26",
      "commit": "52363d25071579bcd00029e20f4278c965578645"
    },
    {
      "skill": "marquee-loop",
      "name": "Marquee Skill",
      "shape": "workflow",
      "installs": null,
      "status": "compared",
      "status_superseded": null,
      "decision": "accepted",
      "accepted": true,
      "artifacts": "precompute",
      "skill_md_unchanged": false,
      "token_reduction": 0.2259,
      "spread_min": 0.201,
      "spread_max": 0.274,
      "straddles_zero": false,
      "net_call_change": -1,
      "tokens_none": 27831,
      "tokens_original": 30362,
      "tokens_optimized": 23503,
      "score_none": 0.75,
      "score_original": 1,
      "score_optimized": 1,
      "mission_preserved": true,
      "retention_band": "full",
      "R": 3,
      "tasks": 1,
      "cohorts": "random",
      "components": "listing;inputs",
      "jev_score": 0.21,
      "subsumable_calls_per_run": 2,
      "n": 3,
      "evidence_class": "measured-local",
      "date": "2026-09-26",
      "commit": "52363d25071579bcd00029e20f4278c965578645"
    },
    {
      "skill": "github-project-triage",
      "name": "GitHub Project Triage",
      "shape": "reference-lookup",
      "installs": 89,
      "status": "compared",
      "status_superseded": null,
      "decision": "accepted",
      "accepted": true,
      "artifacts": "precompute",
      "skill_md_unchanged": false,
      "token_reduction": 0.2257,
      "spread_min": 0.2136,
      "spread_max": 0.2569,
      "straddles_zero": false,
      "net_call_change": 0,
      "tokens_none": 21476,
      "tokens_original": 51049,
      "tokens_optimized": 39527,
      "score_none": 0.6,
      "score_original": 0.8,
      "score_optimized": 1,
      "mission_preserved": true,
      "retention_band": "full",
      "R": 3,
      "tasks": 1,
      "cohorts": "jev",
      "components": "listing;inputs",
      "jev_score": 0.55,
      "subsumable_calls_per_run": 1.333,
      "n": 3,
      "evidence_class": "measured-local",
      "date": "2026-09-26",
      "commit": "52363d25071579bcd00029e20f4278c965578645"
    },
    {
      "skill": "rds-sqlserver",
      "name": "Amazon RDS for SQL Server",
      "shape": "workflow",
      "installs": 3348,
      "status": "compared",
      "status_superseded": null,
      "decision": "accepted",
      "accepted": true,
      "artifacts": "precompute",
      "skill_md_unchanged": false,
      "token_reduction": 0.2241,
      "spread_min": 0.2186,
      "spread_max": 0.3783,
      "straddles_zero": false,
      "net_call_change": -1,
      "tokens_none": 16663,
      "tokens_original": 76880,
      "tokens_optimized": 59653,
      "score_none": 0.2,
      "score_original": 1,
      "score_optimized": 1,
      "mission_preserved": true,
      "retention_band": "full",
      "R": 3,
      "tasks": 1,
      "cohorts": "random",
      "components": "listing",
      "jev_score": 0.23,
      "subsumable_calls_per_run": 1,
      "n": 3,
      "evidence_class": "measured-local",
      "date": "2026-09-26",
      "commit": "52363d25071579bcd00029e20f4278c965578645"
    },
    {
      "skill": "jq",
      "name": "jq - Built-in JSON Processor",
      "shape": "reference-lookup",
      "installs": null,
      "status": "compared",
      "status_superseded": null,
      "decision": "accepted",
      "accepted": true,
      "artifacts": "precompute",
      "skill_md_unchanged": false,
      "token_reduction": 0.214,
      "spread_min": 0.2089,
      "spread_max": 0.2143,
      "straddles_zero": false,
      "net_call_change": -1,
      "tokens_none": 33675,
      "tokens_original": 40683,
      "tokens_optimized": 31977,
      "score_none": 0.4,
      "score_original": 1,
      "score_optimized": 1,
      "mission_preserved": true,
      "retention_band": "full",
      "R": 3,
      "tasks": 1,
      "cohorts": "random",
      "components": "listing;inputs",
      "jev_score": 0.1,
      "subsumable_calls_per_run": 2,
      "n": 3,
      "evidence_class": "measured-local",
      "date": "2026-09-26",
      "commit": "52363d25071579bcd00029e20f4278c965578645"
    },
    {
      "skill": "writing-core",
      "name": "Academic Writing Core",
      "shape": "reference-lookup",
      "installs": null,
      "status": "compared",
      "status_superseded": null,
      "decision": "accepted",
      "accepted": true,
      "artifacts": "precompute",
      "skill_md_unchanged": false,
      "token_reduction": 0.1989,
      "spread_min": 0.1728,
      "spread_max": 0.2622,
      "straddles_zero": false,
      "net_call_change": -1,
      "tokens_none": 30902,
      "tokens_original": 51324,
      "tokens_optimized": 41117,
      "score_none": 0.8,
      "score_original": 1,
      "score_optimized": 1,
      "mission_preserved": true,
      "retention_band": "full",
      "R": 3,
      "tasks": 1,
      "cohorts": "trace",
      "components": "listing;inputs",
      "jev_score": 0.23,
      "subsumable_calls_per_run": 2.667,
      "n": 3,
      "evidence_class": "measured-local",
      "date": "2026-09-26",
      "commit": "52363d25071579bcd00029e20f4278c965578645"
    },
    {
      "skill": "ads-plan",
      "name": "Paid Media Plan",
      "shape": "workflow",
      "installs": null,
      "status": "compared",
      "status_superseded": null,
      "decision": "inconclusive_repetitions_straddle_zero",
      "accepted": false,
      "artifacts": "precompute",
      "skill_md_unchanged": false,
      "token_reduction": 0.4581,
      "spread_min": -0.1803,
      "spread_max": 0.7078,
      "straddles_zero": true,
      "net_call_change": -3,
      "tokens_none": 37854,
      "tokens_original": 59864,
      "tokens_optimized": 32440,
      "score_none": 0.8,
      "score_original": 1,
      "score_optimized": 1,
      "mission_preserved": true,
      "retention_band": "full",
      "R": 3,
      "tasks": 1,
      "cohorts": "trace",
      "components": "listing;inputs",
      "jev_score": 0.25,
      "subsumable_calls_per_run": 2.333,
      "n": 3,
      "evidence_class": "measured-local",
      "date": "2026-09-26",
      "commit": "52363d25071579bcd00029e20f4278c965578645"
    },
    {
      "skill": "git-advanced-workflows",
      "name": "Git Advanced Workflows",
      "shape": "reference-lookup",
      "installs": 17900,
      "status": "compared",
      "status_superseded": null,
      "decision": "inconclusive_repetitions_straddle_zero",
      "accepted": false,
      "artifacts": "precompute",
      "skill_md_unchanged": false,
      "token_reduction": 0.393,
      "spread_min": -0.0745,
      "spread_max": 0.4552,
      "straddles_zero": true,
      "net_call_change": -5,
      "tokens_none": 114182,
      "tokens_original": 247955,
      "tokens_optimized": 150498,
      "score_none": 0,
      "score_original": 0.6,
      "score_optimized": 0,
      "mission_preserved": false,
      "retention_band": "lost",
      "R": 3,
      "tasks": 1,
      "cohorts": "trace",
      "components": "listing;inputs;git",
      "jev_score": 0.2,
      "subsumable_calls_per_run": 3,
      "n": 3,
      "evidence_class": "measured-local",
      "date": "2026-09-26",
      "commit": "52363d25071579bcd00029e20f4278c965578645"
    },
    {
      "skill": "programming",
      "name": "Programming",
      "shape": "reference-lookup",
      "installs": 11,
      "status": "compared",
      "status_superseded": null,
      "decision": "inconclusive_insufficient_repetitions",
      "accepted": false,
      "artifacts": "precompute",
      "skill_md_unchanged": false,
      "token_reduction": 0.3894,
      "spread_min": 0.3642,
      "spread_max": 0.6266,
      "straddles_zero": false,
      "net_call_change": -7,
      "tokens_none": 309224,
      "tokens_original": 776690,
      "tokens_optimized": 474251,
      "score_none": 0.6,
      "score_original": 1,
      "score_optimized": 1,
      "mission_preserved": true,
      "retention_band": "full",
      "R": 2,
      "tasks": 1,
      "cohorts": "jev",
      "components": "listing;bundle:references/python/README.md",
      "jev_score": 0.49,
      "subsumable_calls_per_run": 2,
      "n": 2,
      "evidence_class": "measured-local",
      "date": "2026-09-26",
      "commit": "52363d25071579bcd00029e20f4278c965578645"
    },
    {
      "skill": "abp-application-layer",
      "name": "ABP Application Layer Patterns",
      "shape": "reference-lookup",
      "installs": 16,
      "status": "compared",
      "status_superseded": null,
      "decision": "inconclusive_repetitions_straddle_zero",
      "accepted": false,
      "artifacts": "precompute",
      "skill_md_unchanged": false,
      "token_reduction": 0.3842,
      "spread_min": -0.0629,
      "spread_max": 0.6203,
      "straddles_zero": true,
      "net_call_change": -3,
      "tokens_none": 141465,
      "tokens_original": 98749,
      "tokens_optimized": 60808,
      "score_none": 0.8,
      "score_original": 1,
      "score_optimized": 1,
      "mission_preserved": true,
      "retention_band": "full",
      "R": 3,
      "tasks": 1,
      "cohorts": "trace",
      "components": "listing;inputs",
      "jev_score": 0.28,
      "subsumable_calls_per_run": 2.333,
      "n": 3,
      "evidence_class": "measured-local",
      "date": "2026-09-26",
      "commit": "52363d25071579bcd00029e20f4278c965578645"
    },
    {
      "skill": "aws-well-architected-review",
      "name": "AWS Well-Architected Review",
      "shape": "reference-lookup",
      "installs": 108,
      "status": "compared",
      "status_superseded": null,
      "decision": "rejected_mission_failed",
      "accepted": false,
      "artifacts": "precompute",
      "skill_md_unchanged": false,
      "token_reduction": 0.363,
      "spread_min": 0.3445,
      "spread_max": 0.5339,
      "straddles_zero": false,
      "net_call_change": -1,
      "tokens_none": 22054,
      "tokens_original": 30236,
      "tokens_optimized": 19259,
      "score_none": 0.6,
      "score_original": 0.8,
      "score_optimized": 0.6,
      "mission_preserved": false,
      "retention_band": "lost",
      "R": 3,
      "tasks": 1,
      "cohorts": "jev",
      "components": "listing;inputs",
      "jev_score": 0.48,
      "subsumable_calls_per_run": 2,
      "n": 3,
      "evidence_class": "measured-local",
      "date": "2026-09-26",
      "commit": "52363d25071579bcd00029e20f4278c965578645"
    },
    {
      "skill": "axiom-audit-iap",
      "name": "In-App Purchase Auditor Agent",
      "shape": "reference-lookup",
      "installs": null,
      "status": "compared",
      "status_superseded": null,
      "decision": "inconclusive_repetitions_straddle_zero",
      "accepted": false,
      "artifacts": "precompute",
      "skill_md_unchanged": false,
      "token_reduction": 0.3377,
      "spread_min": -0.1677,
      "spread_max": 0.5364,
      "straddles_zero": true,
      "net_call_change": -2,
      "tokens_none": 23701,
      "tokens_original": 98612,
      "tokens_optimized": 65310,
      "score_none": 0.25,
      "score_original": 0.75,
      "score_optimized": 0.75,
      "mission_preserved": true,
      "retention_band": "full",
      "R": 3,
      "tasks": 1,
      "cohorts": "trace",
      "components": "listing;inputs",
      "jev_score": 0.25,
      "subsumable_calls_per_run": 2.333,
      "n": 3,
      "evidence_class": "measured-local",
      "date": "2026-09-26",
      "commit": "52363d25071579bcd00029e20f4278c965578645"
    },
    {
      "skill": "debug-gradient-flow",
      "name": "Debugging Gradient Flow in Training",
      "shape": "reference-lookup",
      "installs": 3,
      "status": "compared",
      "status_superseded": null,
      "decision": "rejected_mission_failed",
      "accepted": false,
      "artifacts": "precompute",
      "skill_md_unchanged": false,
      "token_reduction": 0.3033,
      "spread_min": 0.1418,
      "spread_max": 0.3377,
      "straddles_zero": false,
      "net_call_change": -2,
      "tokens_none": 100148,
      "tokens_original": 128778,
      "tokens_optimized": 89724,
      "score_none": 0.25,
      "score_original": 0.75,
      "score_optimized": 0.5,
      "mission_preserved": false,
      "retention_band": "partial",
      "R": 3,
      "tasks": 2,
      "cohorts": "trace",
      "components": "listing;inputs",
      "jev_score": 0.2,
      "subsumable_calls_per_run": 2.667,
      "n": 6,
      "evidence_class": "measured-local",
      "date": "2026-09-26",
      "commit": "52363d25071579bcd00029e20f4278c965578645"
    },
    {
      "skill": "xcode-project-analyzer",
      "name": "Xcode Project Analyzer",
      "shape": "reference-prose",
      "installs": null,
      "status": "compared",
      "status_superseded": null,
      "decision": "inconclusive_repetitions_straddle_zero",
      "accepted": false,
      "artifacts": "precompute",
      "skill_md_unchanged": false,
      "token_reduction": 0.2769,
      "spread_min": -0.068,
      "spread_max": 0.4219,
      "straddles_zero": true,
      "net_call_change": -1,
      "tokens_none": 20846,
      "tokens_original": 38336,
      "tokens_optimized": 27721,
      "score_none": 0.8,
      "score_original": 1,
      "score_optimized": 1,
      "mission_preserved": true,
      "retention_band": "full",
      "R": 3,
      "tasks": 1,
      "cohorts": "jev",
      "components": "listing",
      "jev_score": 0.41,
      "subsumable_calls_per_run": 1.667,
      "n": 3,
      "evidence_class": "measured-local",
      "date": "2026-09-26",
      "commit": "52363d25071579bcd00029e20f4278c965578645"
    },
    {
      "skill": "blog-analyze",
      "name": "Blog Analyze",
      "shape": "reference-lookup",
      "installs": null,
      "status": "compared",
      "status_superseded": null,
      "decision": "inconclusive_repetitions_straddle_zero",
      "accepted": false,
      "artifacts": "precompute",
      "skill_md_unchanged": false,
      "token_reduction": 0.1661,
      "spread_min": -0.3141,
      "spread_max": 0.5742,
      "straddles_zero": true,
      "net_call_change": -1,
      "tokens_none": 19355,
      "tokens_original": 89798,
      "tokens_optimized": 74886,
      "score_none": 0.4,
      "score_original": 1,
      "score_optimized": 1,
      "mission_preserved": true,
      "retention_band": "full",
      "R": 3,
      "tasks": 1,
      "cohorts": "jev",
      "components": "listing;inputs",
      "jev_score": 0.42,
      "subsumable_calls_per_run": 1,
      "n": 3,
      "evidence_class": "measured-local",
      "date": "2026-09-26",
      "commit": "52363d25071579bcd00029e20f4278c965578645"
    },
    {
      "skill": "prp-commit",
      "name": "Commit Intended Work",
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