Research/Terra/ 986773
Task evidence / country-choropleth

Map population distribution across English-speaking Caribbean islands

PassComputational taskUnpublished draft
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The question

986773
Map population distribution across English-speaking Caribbean islands.
Exact submitted task and declared adaptations
Map population distribution across English-speaking Caribbean islands.

Task conventions: Use the frozen country polygons and World Bank SP.POP.TOTL 2023 column, in people. These are country-level indicators, not a subnational surface or a new regional aggregation. Join the supplied ISO_A3 to Country Code exactly. Nonmatching identifiers and missing measurements remain unknown; do not guess them or substitute another year. Retain every original country feature in the declared geography and its benchmark_row_id, including unknowns. No data must have a distinct map category, not zero. Create a quantitative choropleth with five quantile classes (fewer only if tied values collapse breaks), a visible legend with numeric bounds and units, and a neutral No data category. Values equal to a class break enter the upper class. Preserve negative and genuine zero values. This fixed classification and year are disclosed evaluation conventions; do not retrieve live replacements. Count original boundary features, not deduplicated sovereign states; preserve all source rows that meet the declared geography. Country-code sentinels such as -99 remain unmatched. Geography is fixed to original country features with NAME_EN in ["Antigua and Barbuda", "The Bahamas", "Barbados", "Dominica", "Grenada", "Jamaica", "Saint Kitts and Nevis", "Saint Lucia", "Saint Vincent and the Grenadines", "Trinidad and Tobago", "Anguilla", "Bermuda", "British Virgin Islands", "Cayman Islands", "Montserrat", "Turks and Caicos Islands"]; retain all matching source geometries, and no others. Classification is calculated only over this geography. Membership reflects this disclosed benchmark edition, not current organization membership.



Add the resulting quantitative country layer to the map and retain an inspectable data artifact containing the original country geometry, benchmark_row_id, numeric value and class. End with one fenced JSON object: {count: countries with a known numeric value, unknown_count: countries without one, coverage_note: string, selection: {collectionId, itemId, assetKey}, value_field: numeric_column_name, class_field: classification_column_name, map_layer_id: delivered_layer_id}. The artifact must include known AND unknown countries, not only the known subset. Explain the year, units, key limitations and legend in the final response.

Delivery format: provide the answer object with all fields specified above as final_response on assess_result, alongside the inspected final artifact_refs. This replaces the JSON-code-block formatting requirement above. Blue attaches your explicit selection to the accepted final answer. Finish with a concise ordinary-language answer agreeing with that selected result; do not duplicate the JSON in chat.

Supplied immutable inputs:
[
  {
    "name": "World Bank country boundaries",
    "edition": "GeoBenchX harmonized names",
    "units": {},
    "collectionId": "blue-generated--[resource id withheld]",
    "itemId": "[resource id withheld]",
    "assetKey": "data"
  },
  {
    "name": "World Bank SP.POP.TOTL",
    "edition": "Frozen GeoBenchX World Development Indicators; use 2023",
    "units": {
      "2023": "people"
    },
    "collectionId": "blue-generated--[resource id withheld]",
    "itemId": "[resource id withheld]",
    "assetKey": "data"
  }
]

Outcome & verification

Independent artifact and delivery checks passed.

Duration
12m 58s
Recorded Blue tool calls
48
Total tokens
2,235,239
Model cost
Not recorded
Application revision
d50497ea9084f29c91b05406688f87035df98d8a
Release
terra-geobenchx-v1

Recorded final answer

Done — the 2023 population choropleth is on your map. It uses the fixed benchmark country polygons and the frozen World Bank SP.POP.TOTL 2023 values in people. Fourteen of the 16 benchmark features have known values; Anguilla and Montserrat are shown as a neutral No data class. The legend uses five quantile classes with breaks at 57,195.4, 77,291.6, 121,686.0, and 334,246.2 people. Main limitation: this is a country-level totals map, not a within-country population surface or a new regional aggregation. Sources: World Bank country boundaries, GeoBenchX harmonized names benchmark fixture, retrieved 2026-10-07; World Bank SP.POP.TOTL frozen 2023 benchmark fixture, retrieved 2026-10-07. ### Limitations - Population values are country-level totals for 2023 in people, so the map does not show within-country distribution. - Anguilla and Montserrat remain No data because their ISO_A3 codes did not match a Country Code in the supplied frozen table; the method preserves them as unknown instead of substituting another identifier or year. - This is a country-level 2023 total-population choropleth in people, not a subnational population surface or a new regional aggregation. - Anguilla and Montserrat remain No data because their exact ISO_A3 codes did not match a Country Code in the supplied frozen table. - The geography remains fixed to the supplied benchmark edition and preserves original source rows rather than deduplicated sovereign states. - Anguilla and Montserrat remain unknown because ISO_A3 values AIA and MSR did not match a Country Code in the supplied frozen table. - Quantile breaks are calculated only over the fixed 16-country benchmark geography; tied values could reduce the number of numeric classes, though the tested run kept five. - The output is a country-level map and data artifact, not a subnational population surface or regional aggregation.

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
14
Reported count
14
Computation verified
Yes
Answer fulfilled
Yes
Full grading and rubric record
{
  "expectedCount": 14,
  "actualCount": 14,
  "expectedMetrics": null,
  "actualMetrics": null,
  "computationCorrect": true,
  "answerFulfilled": true,
  "adjudication": null,
  "qualification": null,
  "reasons": []
}

Recorded investigation findings

The agent's reported hypotheses and assessments, retained as evidence of its process—not independent proof that the answer is correct. Failed calls retain their requested verdict, not an accepted assessment.

run_trial · completed

Does the full fixed-geometry workflow keep the exact benchmark country rows, join only the frozen SP.POP.TOTL 2023 values by ISO_A3 = Country Code, and produce the required quantile choropleth with a distinct No data class?

assess_trial · completed · assessment: sufficient

The full requested method worked on the fixed benchmark geography. The filter retained exactly 16 country features from the supplied NAME_EN list and preserved benchmark_row_id and geometry. The left join matched 14 of 16 features on exact ISO_A3 = Country Code and left 2 features unmatched with null 2023 values: Anguilla (AIA) and Montserrat (MSR). The classified output preserved all 16 rows, kept a distinct No data class 0 for the 2 unknown countries, and created five quantile classes for the 14 known 2023 values. The class summary reported breaks at 57,195.4, 77,291.6, 121,686.0, and 334,246.2 people, with class counts 0:2, 1:3, 2:3, 3:2, 4:3, 5:3.

assess_result · completed · assessment: sufficient

The final run delivered one classified country artifact and added it to the map as layer [resource id withheld]. The final artifact contains 16 benchmark country features, preserves benchmark_row_id and geometry, carries the numeric 2023 population field in people, and includes the population_class field. Exact ISO_A3 = Country Code joining produced 14 known 2023 values and 2 unknown rows: Anguilla (AIA) and Montserrat (MSR). The final class summary reports five quantile classes with breaks at 57,195.4, 77,291.6, 121,686.0, and 334,246.2 people, plus class 0 for No data.

Recorded workflow

  1. 01

    Classify 2023 population

    Recorded vector-classify · succeeded

  2. 02

    Benchmark country boundaries

    Recorded source · succeeded

  3. 03

    English-speaking Caribbean population totals, 2023

    Recorded output · succeeded

  4. 04

    Join frozen 2023 population

    Recorded table-attribute-join · succeeded

  5. 05

    Keep fixed Caribbean benchmark countries

    Recorded vector-filter · succeeded

  6. 06

    Frozen SP.POP.TOTL table

    Recorded source · succeeded

  7. 07

    Classify 2023 population

    Recorded vector-classify · succeeded

  8. 08

    Benchmark country boundaries

    Recorded source · succeeded

  9. 09

    Join frozen 2023 population

    Recorded table-attribute-join · succeeded

  10. 10

    Keep fixed Caribbean benchmark countries

    Recorded vector-filter · succeeded

  11. 11

    Frozen SP.POP.TOTL table

    Recorded source · succeeded

  12. 12

    Keep fixed Caribbean benchmark countries

    Recorded output · succeeded

  13. 13

    Join frozen 2023 population

    Recorded output · succeeded

  14. 14

    Classify 2023 population

    Recorded output · succeeded

  15. 15

    Classify 2023 population

    Recorded output · succeeded

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.

  1. Progress update

    I’m setting up the analysis brief and checking the available Blue tools for a fixed 2023 country-population join over the named Caribbean countries. Then I’ll test the exact join and classing on the supplied frozen inputs before saving the production workflow.

  2. Progress update

    I have the core analysis tools. Next I’m checking the processor help so I can build a minimal tested workflow that keeps all original country rows, joins only the exact 2023 field, computes five quantile classes over the fixed geography, and preserves a separate No data category.

  3. get_analysis

    Recorded tool call · completed

  4. get_collection

    Recorded tool call · completed

  5. get_collection

    Recorded tool call · completed

  6. Progress update

    I found the supplied frozen collections. Next I’m inspecting the exact items to confirm the usable asset selections and field names before I build the join and quantile classes.

  7. get_item

    Recorded tool call · completed

  8. get_item

    Recorded tool call · completed

  9. list_processors

    Recorded tool call · completed

  10. list_processors

    Recorded tool call · completed

  11. list_processors

    Recorded tool call · completed

  12. list_processors

    Recorded tool call · completed

  13. list_processors

    Recorded tool call · completed

  14. list_processors

    Recorded tool call · completed

  15. Progress update

    I found the likely method: filter the benchmark boundaries to the fixed name list, left-join the frozen SP.POP.TOTL table on ISO_A3 = Country Code, then classify the joined 2023 field into five quantiles with a separate No data class. I’m reading the exact schemas now so the trial matches the processor contracts and preserves unmatched rows.

  16. describe_processors

    Recorded tool call · completed

  17. get_tool_help

    Recorded tool call · completed

  18. get_tool_help

    Recorded tool call · completed

  19. get_tool_help

    Recorded tool call · completed

  20. Progress update

    I have the inputs. I’m checking the processor outputs now so I can inspect the right final artifact and add the correct classified layer to the map without guessing output IDs.

  21. describe_processors

    Recorded tool call · completed

  22. get_tool_help

    Recorded tool call · completed

  23. get_tool_help

    Recorded tool call · completed

  24. Progress update

    I have a complete candidate method now. Before I run it, I’m recording the expected result and checks in the analysis brief so the final verification covers the fixed geography, exact 2023 join, retained unknowns, and five-quantile legend rules.

  25. update_analysis_brief

    Recorded tool call · completed

  26. get_tool_help

    Recorded tool call · completed

  27. Progress update

    I’m running the full fixed-scope private test now, not just a setup check. I expect it to return the exact 16 benchmark country rows, preserve any unmatched rows as unknown, and produce the required 2023 quantile classes and legend.

  28. run_trial

    Recorded tool call · completed

  29. Progress update

    The trial finished successfully. I’m checking the actual rows and preview now so I can confirm the exact 16-country membership, the unmatched countries, and the classed output before I save the production workflow.

  30. get_trial_report

    Recorded tool call · completed

  31. inspect_artifact

    Recorded tool call · completed

  32. inspect_artifact

    Recorded tool call · completed

  33. get_tool_help

    Recorded tool call · completed

  34. Progress update

    The method worked on the full requested geography: 16 benchmark features were kept, 14 matched the frozen 2023 table, and 2 stayed unknown. I’m reading the saved workflow schema now so I can save the tested production version with the fixed geography, fixed join keys, and fixed quantile settings before I run the final deliverable.

  35. Progress update

    I already have enough evidence that the method works. I’m grabbing the exact classified rows and the proposal schema details now so the saved workflow and final checks use the tested artifact and fixed rules, not a rebuilt guess.

  36. inspect_artifact

    Recorded tool call · completed

  37. get_tool_help

    Recorded tool call · completed

  38. get_tool_help

    Recorded tool call · completed

  39. get_tool_help

    Recorded tool call · completed

  40. get_tool_help

    Recorded tool call · completed

  41. assess_trial

    Recorded tool call · completed

  42. get_tool_help

    Recorded tool call · completed

  43. update_analysis_brief

    Recorded tool call · completed

  44. Progress update

    I’ve verified the tested computation. Before saving it, I’m refreshing the brief and workflow requirement notes so the final handoff reflects what is now confirmed: 16 kept features, 14 known values, and 2 real No data rows.

  45. get_tool_help

    Recorded tool call · completed

  46. get_tool_help

    Recorded tool call · completed

  47. Progress update

    I’ve narrowed the study extent to the actual benchmark country bounds observed in the tested output, so the saved workflow reflects the real Caribbean footprint rather than the whole world extent of the source files.

  48. update_analysis_brief

    Recorded tool call · completed

  49. Progress update

    I’ve got the tested method and current limits. I’m saving that exact computation now as the final workflow draft with the fixed country list, exact join keys, 2023 field, and quantile class settings locked in.

  50. propose_workflow

    Recorded tool call · completed

  51. Progress update

    The saved draft needs a straightforward fix: the copied trial carried the world-scale source scope into the proposal. I’m correcting that by saving the same tested steps as a direct computation with the actual Caribbean study extent and the proper parameter paths.

  52. propose_workflow

    Recorded tool call · completed

  53. Progress update

    The final workflow is ready and uses the fixed Caribbean extent. I’m running it now, then I’ll inspect the delivered artifact, add the classified layer to the map, and finish the result check with the exact artifact selection.

  54. execute_workflow

    Recorded tool call · completed

  55. Progress update

    The final run completed in the background. I’m inspecting its actual output receipts now so I can bind the delivered artifact, verify the classed legend, and add the correct final layer to the map.

  56. get_workflow_run

    Recorded tool call · completed

  57. inspect_workflow_results

    Recorded tool call · completed

  58. Progress update

    I have the finished map binding. I’m doing one last bounded inspection of the final delivered artifact and class summary so the accepted result cites the exact 2023 values, unknown rows, and legend breaks from the final run.

  59. inspect_artifact

    Recorded tool call · completed

  60. inspect_artifact

    Recorded tool call · completed

  61. inspect_artifact

    Recorded tool call · completed

  62. Progress update

    The final layer is already on the map. I’m reading the completed final inspections now so I can lock the exact output rows, legend breaks, and layer ID into the accepted result object.

  63. inspect_artifact

    Recorded tool call · completed

  64. get_tool_help

    Recorded tool call · completed

  65. inspect_artifact

    Recorded tool call · completed

  66. assess_result

    Recorded tool call · completed

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