Research/Terra/ 385630
Task evidence / country-choropleth

How does forest coverage vary across Pacific island nations?

PassComputational taskUnpublished draft
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The question

385630
How does forest coverage vary across Pacific island nations?
Exact submitted task and declared adaptations
How does forest coverage vary across Pacific island nations?

Task conventions: Use the frozen country polygons and World Bank AG.LND.FRST.ZS 2021 column, in % of land area. 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 ["Fiji", "Papua New Guinea", "Solomon Islands", "Vanuatu", "Kiribati", "Marshall Islands", "Federated States of Micronesia", "Nauru", "Palau", "Samoa", "Tonga", "Tuvalu", "New Zealand"]; 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 AG.LND.FRST.ZS",
    "edition": "Frozen GeoBenchX World Development Indicators; use 2021",
    "units": {
      "2021": "% of land area"
    },
    "collectionId": "blue-generated--[resource id withheld]",
    "itemId": "[resource id withheld]",
    "assetKey": "data"
  }
]

Outcome & verification

Independent artifact and delivery checks passed.

Duration
15m 30s
Recorded Blue tool calls
53
Total tokens
3,485,924
Model cost
Not recorded
Application revision
d50497ea9084f29c91b05406688f87035df98d8a
Release
terra-geobenchx-v1

Recorded final answer

Forest cover in the delivered 2021 map ranges from 0.0% of land area in Nauru to 92.07% in Federated States of Micronesia. Solomon Islands and Palau are also about 90%, Fiji, Papua New Guinea, and Samoa are high, Tuvalu and Vanuatu are mid-range, and Kiribati, Tonga, and Nauru are lowest. The layer is already on your map with five quantile classes. Breaks are 24.97, 37.63, 56.83, and 83.51% of land area; values on a break go into the upper class. There are no No data countries in this fixed benchmark geography. Limits: this uses the frozen GeoBenchX benchmark country polygons and the frozen World Bank AG.LND.FRST.ZS 2021 country indicator only, so it is country-level, not subnational, and it keeps both original New Zealand rows from the benchmark edition. Sources: World Bank country boundaries benchmark fixture, Blue-hosted GeoBenchX (Collection blue-generated--[resource id withheld]; source revision not reported; retrieved 2026-10-07 07:11:54 UTC) and World Bank AG.LND.FRST.ZS benchmark fixture, Blue-hosted GeoBenchX (Collection blue-generated--[resource id withheld]; source revision not reported; retrieved 2026-10-07 07:11:59 UTC). ### Limitations - This result uses the frozen GeoBenchX benchmark edition and the frozen World Bank AG.LND.FRST.ZS 2021 country indicator only. - It is a country-level percentage of land area, not a subnational forest surface or a new regional aggregation. - The fixed benchmark geography retains two separate New Zealand boundary rows because both original source rows meet the declared geography. - The benchmark geography retains two separate New Zealand boundary rows because both original source rows meet the declared geography. - The quantile breaks are specific to this fixed 14-feature benchmark geography. - This follows the supplied benchmark edition and preserves all original selected rows, including two New Zealand rows. - This uses the supplied frozen World Bank AG.LND.FRST.ZS 2021 indicator only. - Exact matching would leave sentinels or missing codes unknown, but the tested selection matched all 14 rows. - Quantile classes are calculated only over this fixed benchmark geography.

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

What are the actual schemas and field names in the two supplied frozen benchmark files needed for the exact country selection, join, and 2021 value field?

run_trial · completed

Does the full fixed benchmark geography join exactly from ISO_A3 to Country Code and classify the supplied 2021 forest percentages into the required quantile choropleth while preserving all selected country rows, including unknowns?

assess_trial · completed · assessment: sufficient

The supplied boundary artifact exposes NAME_EN, ISO_A3, and benchmark_row_id as usable fields for the fixed geography and exact country-code join. The supplied indicator table exposes Country Code and a numeric 2021 field for the required year-specific forest percentage. This answers the schema question and supports the planned exact left join without substituting live data.

assess_trial · completed · assessment: sufficient

The full declared benchmark geography works with the tested method. Filtering NAME_EN to the supplied list returns 14 original boundary rows because New Zealand appears twice in this benchmark edition, and every row keeps its original geometry and benchmark_row_id. The exact left join from ISO_A3 to Country Code matches all 14 selected features, using 13 table rows because the two New Zealand boundary rows share the same NZL code. The joined 2021 field is populated for all 14 selected features, so this fixed geography has no unknown measurements. Quantile classification on the selected 2021 values produces five classes and preserves the genuine zero for Nauru as a valid value, not No data.

assess_result · failed · requested assessment: sufficient

The published final artifact contains the full declared benchmark geography and the live map now displays it as layer [resource id withheld]. The delivered country artifact has 14 original benchmark boundary rows, all with known AG.LND.FRST.ZS 2021 values in % of land area and five quantile classes. Values range from 0.0% in Nauru to 92.07% in Federated States of Micronesia. The legend breaks are 24.9722, 37.6307, 56.8301, and 83.5062 % of land area, with class counts 3, 2, 3, 3, and 3; no No data rows occur in this fixed geography.

assess_result · completed · assessment: sufficient

The published final artifact contains the full declared benchmark geography and the live map now displays it as layer [resource id withheld]. The delivered country artifact has 14 original benchmark boundary rows, all with known AG.LND.FRST.ZS 2021 values in % of land area and five quantile classes. Values range from 0.0% in Nauru to 92.07% in Federated States of Micronesia. The legend breaks are 24.9722, 37.6307, 56.8301, and 83.5062 % of land area, with class counts 3, 2, 3, 3, and 3; no No data rows occur in this fixed geography.

Recorded workflow

  1. 01

    Supplied boundaries

    Recorded source · succeeded

  2. 02

    Forest cover 2021 by benchmark country

    Recorded output · succeeded

  3. 03

    Classify forest coverage

    Recorded vector-classify · succeeded

  4. 04

    Supplied forest table

    Recorded source · succeeded

  5. 05

    Join forest percentage

    Recorded table-attribute-join · succeeded

  6. 06

    Selected benchmark countries

    Recorded vector-filter · succeeded

  7. 07

    Supplied boundaries

    Recorded source · succeeded

  8. 08

    Classify forest coverage

    Recorded vector-classify · succeeded

  9. 09

    Supplied forest table

    Recorded source · succeeded

  10. 10

    Join forest percentage

    Recorded table-attribute-join · succeeded

  11. 11

    Selected benchmark countries

    Recorded vector-filter · succeeded

  12. 12

    Selected benchmark countries

    Recorded output · succeeded

  13. 13

    Join forest percentage

    Recorded output · succeeded

  14. 14

    Classify forest coverage

    Recorded output · succeeded

  15. 15

    Supplied boundaries

    Recorded source · succeeded

  16. 16

    Supplied forest table

    Recorded source · succeeded

  17. 17

    Supplied boundaries

    Recorded output · succeeded

  18. 18

    Supplied forest table

    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’ll check the saved analysis context, inspect the two supplied datasets, and then test the exact country join and quantile classification before I build the final map layer.

  2. Progress update

    I found the core workflow tools. Next I’m pulling the saved brief, then I’ll inspect the exact supplied files so I can test the fixed 2021 join and legend rules without changing the user’s conventions.

  3. get_analysis

    Recorded tool call · completed

  4. get_map_context

    Recorded tool call · completed

  5. list_map_layers

    Recorded tool call · completed

  6. get_collection

    Recorded tool call · completed

  7. get_collection

    Recorded tool call · completed

  8. Progress update

    I confirmed the two inputs are the exact frozen benchmark files, not live catalog replacements. Now I’m reading small samples to confirm the real field names before I test the join and class rules.

  9. get_collection

    Recorded tool call · completed

  10. get_collection

    Recorded tool call · completed

  11. get_tool_help

    Recorded tool call · completed

  12. get_tool_help

    Recorded tool call · completed

  13. get_tool_help

    Recorded tool call · completed

  14. list_processors

    Recorded tool call · completed

  15. list_processors

    Recorded tool call · completed

  16. list_processors

    Recorded tool call · completed

  17. update_analysis_brief

    Recorded tool call · completed

  18. Progress update

    I’ve saved the analysis goal. The main uncertainty now is just the real field names in the frozen files, so I’m running the smallest private check that materializes those two exact inputs for schema inspection.

  19. run_trial

    Recorded tool call · completed

  20. Progress update

    The schema check finished. I found the needed boundary keys, and I’m now confirming the exact indicator columns — especially the 2021 field — before I lock in the join and class method.

  21. inspect_artifact

    Recorded tool call · completed

  22. inspect_artifact

    Recorded tool call · completed

  23. Progress update

    I already have the first schema check, and one deeper inspection finished in the background. I’m resuming from that exact output and rerunning only the missing table inspection, then I’ll test the join and quantile classes.

  24. inspect_artifact

    Recorded tool call · completed

  25. inspect_artifact

    Recorded tool call · completed

  26. Progress update

    I’ve confirmed the real columns: the boundary file has `NAME_EN`, `ISO_A3`, and `benchmark_row_id`, and the indicator file has `Country Code` plus a numeric `2021` field. Next I’m inspecting the exact processor schemas so I can test the full selection, exact join, and quantile legend in one small end-to-end trial.

  27. describe_processors

    Recorded tool call · completed

  28. Progress update

    I have the exact processor contracts now. I’m running the full benchmark geography as a private end-to-end test: select the named countries, left-join `ISO_A3` to `Country Code`, and classify the `2021` values into quantiles with a separate No data class.

  29. run_trial

    Recorded tool call · completed

  30. Progress update

    Blue wants the first investigation recorded before I continue. I already have enough evidence from that schema check, so I’m reading its combined report and then I’ll assess it as successful groundwork for the join test.

  31. get_trial_report

    Recorded tool call · completed

  32. assess_trial

    Recorded tool call · completed

  33. Progress update

    The end-to-end trial finished in the background. It looks promising: 14 benchmark boundary rows were selected, all 14 kept through the left join, and the 2021 field classified into five classes. I’m now checking the actual country rows and legend details before I save the final workflow and add the layer.

  34. inspect_artifact

    Recorded tool call · completed

  35. inspect_artifact

    Recorded tool call · completed

  36. inspect_artifact

    Recorded tool call · completed

  37. inspect_artifact

    Recorded tool call · completed

  38. Progress update

    One row-level inspection already finished in the background. I’m reusing that exact work now and pulling the country list plus the classified output values and legend details, so I can confirm the final counts before I publish the layer.

  39. get_trial_report

    Recorded tool call · completed

  40. Progress update

    The method is now tested on the full declared geography. I’m recording that result, then I’ll save the production workflow from the tested computation and inspect its final legend and layer binding.

  41. assess_trial

    Recorded tool call · completed

  42. get_tool_help

    Recorded tool call · completed

  43. Progress update

    The tested method is good enough to promote into the production workflow. I’m checking the exact proposal schema now so I can save one clean final workflow instead of rebuilding the computation by hand.

  44. get_tool_help

    Recorded tool call · completed

  45. get_tool_help

    Recorded tool call · completed

  46. get_tool_help

    Recorded tool call · completed

  47. get_tool_help

    Recorded tool call · completed

  48. get_tool_help

    Recorded tool call · completed

  49. Progress update

    I’ve now confirmed the exact geography, join, and class behavior. I’m refreshing the brief to remove the old “not yet confirmed” notes, then I’ll save the tested workflow and run the final publish step.

  50. update_analysis_brief

    Recorded tool call · completed

  51. Progress update

    I’ve got the tested production method. Now I’m saving it as the final workflow with the same full-scope computation, the fixed geography contract, and the final country deliverable.

  52. propose_workflow

    Recorded tool call · completed

  53. Progress update

    The saved draft only needs one correction: the contract scope has to match the executable workflow scope exactly. I’m fixing that saved draft instead of rebuilding it.

  54. get_tool_help

    Recorded tool call · completed

  55. get_tool_help

    Recorded tool call · completed

  56. revise_workflow

    Recorded tool call · completed

  57. execute_workflow

    Recorded tool call · completed

  58. Progress update

    The final workflow is ready and matches the tested computation. I’m running that exact saved workflow now, then I’ll inspect the published output, bind it to the map, and verify the final answer fields.

  59. Progress update

    The production run finished in the background. I’m inspecting that exact run now so I can bind the final published artifact to the map, verify the legend and row counts, and then record the final answer object.

  60. inspect_workflow_results

    Recorded tool call · completed

  61. Progress update

    The run itself is done. I’m now reading its final output receipts, then I’ll add the published country layer to the map and lock in the final answer object from that exact artifact.

  62. inspect_workflow_results

    Recorded tool call · completed

  63. Progress update

    The final artifact already exists, and the workflow also already added its map layer. I’m doing one last bounded check on the published country rows and the classifier’s summary so I can cite the final legend and counts from the delivered output itself.

  64. inspect_artifact

    Recorded tool call · completed

  65. inspect_artifact

    Recorded tool call · completed

  66. list_map_layers

    Recorded tool call · completed

  67. list_map_layers

    Recorded tool call · completed

  68. Progress update

    I already have the final published artifact and its classifier summary. I’m pulling the finished preview receipt and checking the current map layer list one last time, then I’ll record the final result and give you the plain-language summary.

  69. inspect_artifact

    Recorded tool call · completed

  70. Progress update

    I’ve verified the delivered artifact, the five quantile breaks, and the live map layer. The final step is just to record the accepted result object against this exact published layer and artifact.

  71. get_tool_help

    Recorded tool call · completed

  72. get_tool_help

    Recorded tool call · completed

  73. get_analysis

    Recorded tool call · completed

  74. assess_result

    Recorded tool call · failed

  75. Progress update

    Blue rejected that assessment because the condition labels have to match the saved acceptance checks exactly. I’ve already verified the evidence, so I’m resubmitting the same result with the exact condition text.

  76. assess_result

    Recorded tool call · completed

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