Task evidence / qualitative-control

Which African countries have the most efficient distribution of power stations relative to population?

PassQualitative controlUnpublished draft

The question

529248

Which African countries have the most efficient distribution of power stations relative to population?

Exact submitted task and declared adaptations

Which African countries have the most efficient distribution of power stations relative to population?

Task conventions: This is a closed-catalog task. The complete original GeoBenchX source inventory is listed below; it describes available source types, not actual measurements. Do not supplement it with live data or claim numerical evidence from general knowledge. General knowledge may be used for definitions and explanation. Answer the original question as far as this information environment supports, accurately distinguishing observations, inference and uncertainty. This source-availability/control cohort supplies catalog metadata rather than the observation files and is reported separately from computational tasks.
- DATA_CATALOG: Forest area (sq. km)
- DATA_CATALOG: Forest area (% of land area)
- DATA_CATALOG: Electric power consumption (kWh per capita)
- DATA_CATALOG: Annual freshwater withdrawals, total (billion cubic meters)
- DATA_CATALOG: Annual freshwater withdrawals, total (% of internal resources)
- DATA_CATALOG: Agriculture, value added (% of GDP)
- DATA_CATALOG: GDP per capita (current US$)
- DATA_CATALOG: Labor force, total
- DATA_CATALOG: Net migration
- DATA_CATALOG: Fertility rate, births per woman
- DATA_CATALOG: Population, total
- DATA_CATALOG: Rural population, total
- DATA_CATALOG: Greenhouse gases emission, per capita, tons of carbon dioxide-equivalents 
- DATA_CATALOG: CO2 emissions per capita, tons
- DATA_CATALOG: Incidence of Tuberculosis Disease, 2023, Massachusetts Counties
- DATA_CATALOG: Incidence of Tuberculosis Disease, 2023, New York State Counties
- DATA_CATALOG: Rail lines (total route-km)
- DATA_CATALOG: Regional GDP in departments (provinces) of Peru, constant prices 2007, thousand of soles
- GEO_CATALOG: Countries
- GEO_CATALOG: Amtrak railway stations
- GEO_CATALOG: Railway lines in Bangladesh
- GEO_CATALOG: Cities and Towns of the United States, 2014
- GEO_CATALOG: Railway Network of North America
- GEO_CATALOG: Current Wildland Fire Incident Locations, size in acres
- GEO_CATALOG: Rivers in North America
- GEO_CATALOG: Lakes in North America
- GEO_CATALOG: USA counties borders
- GEO_CATALOG: USA states borders
- GEO_CATALOG: Earthquakes occurences and magnitude March 15- February 14 2025
- GEO_CATALOG: Rivers in South America
- GEO_CATALOG: Seaports of Latin America
- GEO_CATALOG: Railways in Brazil
- GEO_CATALOG: Mineral extraction facilities in Africa
- GEO_CATALOG: Power stations in Africa
- GEO_CATALOG: Railways in Africa
- GEO_CATALOG: Municipalities of Brazil
- GEO_CATALOG: Regions of Peru
- GEO_CATALOG: Provinces of Peru
- RASTER_CATALOG: Accumulated snow cover season 2023-2024, USA, inches
- RASTER_CATALOG: Accumulated snow cover season 2024-2025, USA, inches
- RASTER_CATALOG: Tibetan Plato South Asia flood extent, August 2018
- RASTER_CATALOG: Bangladesh population, 2018, people, resolution 1 km
- RASTER_CATALOG: USA population 2020, people, resolution 1 km
- RASTER_CATALOG: Chile population, 2020, people, resolution 1 km
- RASTER_CATALOG: Angola population, 2020, people, resolution 1 km
- RASTER_CATALOG: Peru, Bolivia, Argentina, Chile flood, February 2018
- RASTER_CATALOG: Peru population, 2018, 1 km resolution
- RASTER_CATALOG: Brazil population, 2018, 1 km resolution
- RASTER_CATALOG: Algeria population density per 1 km 2020, 1 km resolution



Give a concise ordinary-language answer. No artificial count, result artifact, workflow or map is required when the answer does not warrant one. Do not invent observations or claim an analysis was run.

Supplied immutable inputs:
[]

Outcome & verification

Operator-reviewed frozen qualitative criteria satisfied; not a numerical GIS result.

Duration: 2m 1s
Recorded Blue tool calls: 5
Total tokens: 123,897
Model cost: Not recorded
Application revision: d50497ea9084f29c91b05406688f87035df98d8a
Release: terra-geobenchx-v1

Recorded final answer

I can’t responsibly name specific African countries from this information environment. The inventory shows the right source types exist in principle — **“Power stations in Africa,” “Countries,” and “Population, total”** — but it does **not** provide the actual country-level observations needed to count stations by country and compare them with population. In this run, Blue catalog searches also returned **no concrete collections** to inspect. So the strongest supported answer is: **not determinable here**. If the observation files were available, the simplest defensible version would be **power stations per million people by country**. Even that would still be only a rough proxy for “efficiency,” because it would not measure **plant capacity, grid reach, or reliability**. **Sources:** supplied GeoBenchX inventory entries “Power stations in Africa,” “Countries,” and “Population, total”; Blue catalog search in this run (2026-10-07). ### Limitations - The supplied inventory indicates relevant source types exist, but this run did not expose concrete observed collections or country-level values to calculate a ranking. - The supplied environment shows relevant source types but not the observed country-level values needed for a ranking. - **Power stations:** Usable station observations were not available to inspect here, so country counts, capacity and coverage cannot be measured. - **Population:** Usable country population observations were not available to inspect here, so population-normalized comparisons cannot be calculated. - **Countries:** No concrete boundary collection was available to inspect here, so I cannot verify country assignment of stations in this environment. - **Efficiency meaning:** The question does not define which of those meanings to use, and the available environment does not expose measurements for any of them.

Independent checks

These checks are separate from the agent's own assessment. A successful job or an assertion of success is not enough to pass.

Expected count: Not a count-based check
Reported count: Not recorded
Computation verified: Not applicable / unverified
Answer fulfilled: Yes

Full grading and rubric record

{
  "expectedCount": null,
  "actualCount": null,
  "expectedMetrics": null,
  "actualMetrics": null,
  "computationCorrect": null,
  "answerFulfilled": true,
  "adjudication": {
    "reviewedAt": "2026-10-07T07:11:19.333947+00:00",
    "reviewer": "Codex evaluation operator (AI-assisted); not blinded or external",
    "rubricFingerprint": "f38e52af9f84bb058268d07228dd5d0874fccce370372787885ec6f62db595d9",
    "finalEventId": "[resource id withheld]",
    "finalTextHash": "5a109153dd2552d85b821ad9e2577f3a20cc0bcfaeb198d068ad6fd7d433003a",
    "snapshotSha256AtReview": "3713f4b119c19e64e9f6d84146daf1aedc4c29b93c9b73b1ce8e2b91b2d26533",
    "evidenceReviewed": [
      "Complete accepted final answer",
      "Recorded tool names, statuses and outputs relevant to claimed work",
      "Recorded workflow/job/artifact presence",
      "Frozen source inventory, task environment and case-specific rubric"
    ],
    "criteria": {
      "specific_obstacle": {
        "satisfied": true,
        "explanation": "Identifies missing actual station/population observations and an undefined meaning of distribution efficiency."
      },
      "no_false_proxy": {
        "satisfied": true,
        "explanation": "Explicitly labels stations per million people a rough proxy that omits capacity, reach and reliability."
      },
      "scope_honesty": {
        "satisfied": true,
        "explanation": "Acknowledges listed relevant source types but reports two catalog searches found no concrete collections in this environment."
      },
      "no_fabrication": {
        "satisfied": true,
        "explanation": "Names no most-efficient country or computed ranking; all five calls completed without jobs or artifacts."
      },
      "useful_next_step": {
        "satisfied": true,
        "explanation": "Describes the actual records needed and a separately labeled country-level proxy comparison."
      }
    },
    "cohort": "metadata-only qualitative control; distinct from computational correctness"
  },
  "qualification": "Operator-adjudicated, not blinded. Reported separately from exact computed/map results.",
  "reasons": []
}

Activity

Recorded actions

Recorded observable actions only, not private reasoning. Raw payloads, geometry, private links and credentials are omitted; full evidence is retained privately. Activity/workflow lists bounded at 500 entries.

07:02:05 UTC
Progress update
I’ll check what Blue catalog tools are available, then I’ll answer only to the level this closed inventory supports.
07:02:16 UTC
get_analysis
Recorded tool call · completed
07:02:16 UTC
Progress update
I found the relevant kinds of sources in the closed catalog inventory. I’m checking whether there is any retained analysis or evidence here; if not, the answer will stay at source-availability level only.
07:02:29 UTC
Progress update
I have no prior retained work on this question. I’m recording a minimal brief, then I’ll confirm which relevant source types exist and whether they support an actual ranking or only a qualified conclusion.
07:02:36 UTC
update_analysis_brief
Recorded tool call · completed
07:02:39 UTC
search_catalog
Recorded tool call · completed
07:02:44 UTC
Progress update
The first catalog search did not return concrete collections. I’m doing one focused pass using the exact source names from the supplied inventory. If that also finds nothing, I’ll treat the environment as source-availability only and avoid inventing a ranking.
07:02:45 UTC
search_catalog
Recorded tool call · completed
07:03:19 UTC
Progress update
I did the two useful searches. They found no concrete collections to inspect, so I’m updating the brief to reflect a real source-access limitation rather than leaving it as “not yet confirmed.”
07:03:25 UTC
update_analysis_brief
Recorded tool call · completed

The question

Outcome & verification

Recorded final answer

Independent checks

Activity

Progress update

get_analysis

Progress update

Progress update

update_analysis_brief

search_catalog

Progress update

search_catalog

Progress update

update_analysis_brief