ILO Labour Statistics (ILOSTAT): unemployment, wages, informality

List valid codes of a dimension

ilo_list_dimension_values

Read-onlyIdempotent

Valid codes (id + label) of one dimension of an ILOSTAT dataflow — e.g. the country/area codes of REF_AREA (ISO 3166-1 alpha-3 such as BRA, plus X-codes for aggregates such as X01 World) or the categories of SEX (SEX_T/SEX_M/SEX_F) and AGE. Use search to resolve a name to a code (e.g. search "Brazil") instead of paging through hundreds of codes; codelists are shared across dataflows, so a code found here is valid wherever the same codelist is used. Use to build correct ilo_get_data filters. Does not return statistical values, does not say which codes actually have data for a given dataflow, and is not applicable to the time dimension (filter it via start_period/end_period in ilo_get_data).

Input Schema

Name	Required	Description
`limit`	No	Maximum codes returned (default 200)
`offset`	No	Codes to skip, for pagination (default 0)
`search`	No	Case-insensitive filter on code id or label
`dataflow`	Yes	Dataflow id the dimension belongs to
`dimension`	Yes	Dimension id from ilo_get_indicator_metadata (e.g. "REF_AREA", "SEX")
`provenance_mode`	No	Provenance verbosity: 'concise' (default — source, url, vintage, retrieval date, citation, license) or 'detailed' (full canonical block with dataset, dimension key and notices)

Output Schema

Name	Required	Description
`offset`	Yes	Codes skipped before this page
`values`	Yes	Valid codes: id is the value for ilo_get_data filters, name is the ILO label
`showing`	Yes	Codes returned in this page
`codelist`	Yes	Id of the codelist that enumerates the dimension (shared across dataflows)
`dataflow`	Yes	Dataflow id the dimension belongs to
`has_more`	Yes	True when more codes remain after this page
`dimension`	Yes	Dimension id
`provenance`	Yes	Portfolio provenance block. concise (default): source, source_url, data_vintage, retrieved_at, retrieval, citation, license; detailed: the full canonical block (dataset, dimension_key, notices, served_from_cache, ...). retrieval is the origin diagnostic of this call — requests made to ILOSTAT, attempts including retries, anomalies overcome (timeout, network, rate_limited, http_5xx, http_4xx, malformed_body) and unstable (true when anything had to be retried: treat the figures as obtained with difficulty); null when nothing was fetched from ILOSTAT (catalogue or cached answer). Optional keys (field_sources, notices, derived, derivation_note, revision) appear only when there is something to say
`attribution`	Yes	Source URLs the figures came from (the provenance source_url of each block), for linking the citation
`next_offset`	No	Offset for the next page; present only when has_more is true
`total_codes`	Yes	Codes matching the search filter (or all codes), across every page

Schema Changelog

Changes observed during successful MCP inspections.

Changed10 schema fields changedOct 28, 2026

addedOutput schema / properties / attribution / description

Added value: +"Source URLs the figures came from (the provenance source_url of each block), for linking the citation"

addedOutput schema / properties / codelist / description

Added value: +"Id of the codelist that enumerates the dimension (shared across dataflows)"

addedOutput schema / properties / dataflow / description
```
Added value: +"Dataflow id the dimension belongs to"
```
addedOutput schema / properties / dimension / description
```
Added value: +"Dimension id"
```

addedOutput schema / properties / has_more / description

Added value: +"True when more codes remain after this page"

addedOutput schema / properties / next_offset / description

Added value: +"Offset for the next page; present only when has_more is true"

addedOutput schema / properties / offset / description
```
Added value: +"Codes skipped before this page"
```
addedOutput schema / properties / showing / description
```
Added value: +"Codes returned in this page"
```

addedOutput schema / properties / total_codes / description

Added value: +"Codes matching the search filter (or all codes), across every page"

addedOutput schema / properties / values / description

Added value: +"Valid codes: id is the value for ilo_get_data filters, name is the ILO label"

Changed2 schema fields changedOct 8, 2026

changedOutput schema / properties / provenance / anyOf

Previous value: -[
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-          "properties": {
-            "data_vintage": {
-              "type": [
-                "string",
-                "null"
-              ]
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-            "source_url": {
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-        "type": "array"
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-      "license": {
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-      "retrieval": {
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-        "type": "string"
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-        "type": "string"
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-        "type": "object"
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-      "derivation_note": {
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-              "type": "string"
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-      "field_sources": {
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-            "type": "array"
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-      "license": {
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-]New value: +[
+  {
+    "additionalProperties": false,
+    "properties": {
+      "citation": {
+        "type": "string"
+      },
+      "data_vintage": {
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "derivation_note": {
+        "type": "string"
+      },
+      "derived": {
+        "type": "boolean"
+      },
+      "field_sources": {
+        "items": {
+          "additionalProperties": false,
+          "properties": {
+            "data_vintage": {
+              "type": [
+                "string",
+                "null"
+              ]
+            },
+            "dataset_id": {
+              "type": [
+                "string",
+                "null"
+              ]
+            },
+            "fields": {
+              "items": {
+                "type": "string"
+              },
+              "minItems": 1,
+              "type": "array"
+            },
+            "retrieved_at": {
+              "type": [
+                "string",
+                "null"
+              ]
+            },
+            "served_from_cache": {
+              "type": [
+                "boolean",
+                "null"
+              ]
+            },
+            "source_url": {
+              "type": "string"
+            }
+          },
+          "required": [
+            "fields",
+            "source_url",
+            "dataset_id",
+            "data_vintage",
+            "retrieved_at"
+          ],
+          "type": "object"
+        },
+        "minItems": 1,
+        "type": "array"
+      },
+      "license": {
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "notices": {
+        "items": {
+          "type": "string"
+        },
+        "minItems": 1,
+        "type": "array"
+      },
+      "retrieval": {
+        "anyOf": [
+          {
+            "additionalProperties": false,
+            "properties": {
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+                "items": {
+                  "additionalProperties": false,
+                  "properties": {
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+                      "maximum": 9007199254740991,
+                      "minimum": 1,
+                      "type": "integer"
+                    },
+                    "kind": {
+                      "enum": [
+                        "timeout",
+                        "network",
+                        "http_4xx",
+                        "http_5xx",
+                        "rate_limited",
+                        "malformed_body"
+                      ],
+                      "type": "string"
+                    }
+                  },
+                  "required": [
+                    "kind",
+                    "count"
+                  ],
+                  "type": "object"
+                },
+                "type": "array"
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+              "attempts": {
+                "maximum": 9007199254740991,
+                "minimum": 1,
+                "type": "integer"
+              },
+              "requests": {
+                "maximum": 9007199254740991,
+                "minimum": 1,
+                "type": "integer"
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+              "unstable": {
+                "type": "boolean"
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+              "anomalies",
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+        "properties": {
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+              "final"
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+        "required": [
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+          "note"
+        ],
+        "type": "object"
+      },
+      "source": {
+        "type": "string"
+      },
+      "source_url": {
+        "type": "string"
+      }
+    },
+    "required": [
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+      "data_vintage",
+      "retrieved_at",
+      "retrieval",
+      "citation",
+      "license"
+    ],
+    "type": "object"
+  },
+  {
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+    "properties": {
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+      "citation": {
+        "type": "string"
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+      "contract_version": {
+        "enum": [
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+          "1.2",
+          "1.3"
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+      "data_vintage": {
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+          "null"
+        ]
+      },
+      "dataset": {
+        "additionalProperties": false,
+        "properties": {
+          "id": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "name": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "version": {
+            "type": [
+              "string",
+              "null"
+            ]
+          }
+        },
+        "required": [
+          "id",
+          "version",
+          "name"
+        ],
+        "type": "object"
+      },
+      "derivation_note": {
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "derived": {
+        "type": "boolean"
+      },
+      "dimension_key": {
+        "anyOf": [
+          {
+            "additionalProperties": {
+              "type": "string"
+            },
+            "propertyNames": {
+              "type": "string"
+            },
+            "type": "object"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "field_sources": {
+        "anyOf": [
+          {
+            "items": {
+              "additionalProperties": false,
+              "properties": {
+                "data_vintage": {
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+                    "null"
+                  ]
+                },
+                "dataset_id": {
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+                    "null"
+                  ]
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+                "fields": {
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+                "dataset_id",
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+              ],
+              "type": "object"
+            },
+            "type": "array"
+          },
+          {
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+          }
+        ]
+      },
+      "license": {
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+        "properties": {
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+              "null"
+            ]
+          },
+          "name": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "terms_url": {
+            "type": [
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+              "null"
+            ]
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+          "url": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "verified_at": {
+            "type": [
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+              "null"
+            ]
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+        },
+        "required": [
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+          "name",
+          "url",
+          "terms_url",
+          "verified_at"
+        ],
+        "type": "object"
+      },
+      "notices": {
+        "items": {
+          "type": "string"
+        },
+        "type": "array"
+      },
+      "retrieval": {
+        "anyOf": [
+          {
+            "additionalProperties": false,
+            "properties": {
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+                "items": {
+                  "additionalProperties": false,
+                  "properties": {
+                    "count": {
+                      "maximum": 9007199254740991,
+                      "minimum": 1,
+                      "type": "integer"
+                    },
+                    "kind": {
+                      "enum": [
+                        "timeout",
+                        "network",
+                        "http_4xx",
+                        "http_5xx",
+                        "rate_limited",
+                        "malformed_body"
+                      ],
+                      "type": "string"
+                    }
+                  },
+                  "required": [
+                    "kind",
+                    "count"
+                  ],
+                  "type": "object"
+                },
+                "type": "array"
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+              "attempts": {
+                "maximum": 9007199254740991,
+                "minimum": 1,
+                "type": "integer"
+              },
+              "requests": {
+                "maximum": 9007199254740991,
+                "minimum": 1,
+                "type": "integer"
+              },
+              "unstable": {
+                "type": "boolean"
+              }
+            },
+            "required": [
+              "requests",
+              "attempts",
+              "anomalies",
+              "unstable"
+            ],
+            "type": "object"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "retrieved_at": {
+        "type": "string"
+      },
+      "revision": {
+        "anyOf": [
+          {
+            "additionalProperties": false,
+            "properties": {
+              "note": {
+                "type": [
+                  "string",
+                  "null"
+                ]
+              },
+              "status": {
+                "enum": [
+                  "current",
+                  "provisional",
+                  "final"
+                ],
+                "type": "string"
+              }
+            },
+            "required": [
+              "status",
+              "note"
+            ],
+            "type": "object"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "served_from_cache": {
+        "type": [
+          "boolean",
+          "null"
+        ]
+      },
+      "source": {
+        "additionalProperties": false,
+        "properties": {
+          "agency": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "database": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "endpoint": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "name": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "name",
+          "agency",
+          "database",
+          "endpoint"
+        ],
+        "type": "object"
+      },
+      "source_url": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "contract_version",
+      "source",
+      "dataset",
+      "dimension_key",
+      "data_vintage",
+      "retrieved_at",
+      "source_url",
+      "api_version",
+      "license",
+      "citation",
+      "notices",
+      "derived",
+      "derivation_note",
+      "served_from_cache",
+      "retrieval",
+      "field_sources"
+    ],
+    "type": "object"
+  }
+]

changedOutput schema / properties / provenance / description

Previous value: -"Provenance block (contract v1.1). concise (default): source, source_url, data_vintage, retrieved_at, retrieval, citation, license; detailed: the full canonical block (dataset, dimension_key, notices, served_from_cache, ...). retrieval is the origin diagnostic of this call — requests made to ILOSTAT, attempts including retries, anomalies overcome (timeout, network, rate_limited, http_5xx, http_4xx, malformed_body) and unstable (true when anything had to be retried: treat the figures as obtained with difficulty); null when nothing was fetched from ILOSTAT (catalogue or cached answer)"New value: +"Portfolio provenance block. concise (default): source, source_url, data_vintage, retrieved_at, retrieval, citation, license; detailed: the full canonical block (dataset, dimension_key, notices, served_from_cache, ...). retrieval is the origin diagnostic of this call — requests made to ILOSTAT, attempts including retries, anomalies overcome (timeout, network, rate_limited, http_5xx, http_4xx, malformed_body) and unstable (true when anything had to be retried: treat the figures as obtained with difficulty); null when nothing was fetched from ILOSTAT (catalogue or cached answer). Optional keys (field_sources, notices, derived, derivation_note, revision) appear only when there is something to say"

Changed1 schema field changedOct 6, 2026

changedOutput schema / properties / provenance / anyOf

Previous value: -[
-  {
-    "additionalProperties": false,
-    "properties": {
-      "citation": {
-        "type": "string"
-      },
-      "data_vintage": {
-        "type": [
-          "string",
-          "null"
-        ]
-      },
-      "license": {
-        "type": [
-          "string",
-          "null"
-        ]
-      },
-      "retrieval": {
-        "anyOf": [
-          {
-            "additionalProperties": false,
-            "properties": {
-              "anomalies": {
-                "items": {
-                  "additionalProperties": false,
-                  "properties": {
-                    "count": {
-                      "maximum": 9007199254740991,
-                      "minimum": 1,
-                      "type": "integer"
-                    },
-                    "kind": {
-                      "enum": [
-                        "timeout",
-                        "network",
-                        "http_4xx",
-                        "http_5xx",
-                        "rate_limited",
-                        "malformed_body"
-                      ],
-                      "type": "string"
-                    }
-                  },
-                  "required": [
-                    "kind",
-                    "count"
-                  ],
-                  "type": "object"
-                },
-                "type": "array"
-              },
-              "attempts": {
-                "maximum": 9007199254740991,
-                "minimum": 1,
-                "type": "integer"
-              },
-              "requests": {
-                "maximum": 9007199254740991,
-                "minimum": 1,
-                "type": "integer"
-              },
-              "unstable": {
-                "type": "boolean"
-              }
-            },
-            "required": [
-              "requests",
-              "attempts",
-              "anomalies",
-              "unstable"
-            ],
-            "type": "object"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      },
-      "retrieved_at": {
-        "type": "string"
-      },
-      "source": {
-        "type": "string"
-      },
-      "source_url": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "source",
-      "source_url",
-      "data_vintage",
-      "retrieved_at",
-      "retrieval",
-      "citation",
-      "license"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "api_version": {
-        "type": [
-          "string",
-          "null"
-        ]
-      },
-      "citation": {
-        "type": "string"
-      },
-      "contract_version": {
-        "const": "1.1",
-        "type": "string"
-      },
-      "data_vintage": {
-        "type": [
-          "string",
-          "null"
-        ]
-      },
-      "dataset": {
-        "additionalProperties": false,
-        "properties": {
-          "id": {
-            "type": [
-              "string",
-              "null"
-            ]
-          },
-          "name": {
-            "type": [
-              "string",
-              "null"
-            ]
-          },
-          "version": {
-            "type": [
-              "string",
-              "null"
-            ]
-          }
-        },
-        "required": [
-          "id",
-          "version",
-          "name"
-        ],
-        "type": "object"
-      },
-      "derivation_note": {
-        "type": [
-          "string",
-          "null"
-        ]
-      },
-      "derived": {
-        "type": "boolean"
-      },
-      "dimension_key": {
-        "anyOf": [
-          {
-            "additionalProperties": {
-              "type": "string"
-            },
-            "propertyNames": {
-              "type": "string"
-            },
-            "type": "object"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      },
-      "field_sources": {
-        "anyOf": [
-          {
-            "items": {
-              "additionalProperties": false,
-              "properties": {
-                "data_vintage": {
-                  "type": [
-                    "string",
-                    "null"
-                  ]
-                },
-                "dataset_id": {
-                  "type": [
-                    "string",
-                    "null"
-                  ]
-                },
-                "fields": {
-                  "items": {
-                    "type": "string"
-                  },
-                  "minItems": 1,
-                  "type": "array"
-                },
-                "retrieved_at": {
-                  "type": [
-                    "string",
-                    "null"
-                  ]
-                },
-                "source_url": {
-                  "type": "string"
-                }
-              },
-              "required": [
-                "fields",
-                "source_url",
-                "dataset_id",
-                "data_vintage",
-                "retrieved_at"
-              ],
-              "type": "object"
-            },
-            "type": "array"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      },
-      "license": {
-        "additionalProperties": false,
-        "properties": {
-          "id": {
-            "type": [
-              "string",
-              "null"
-            ]
-          },
-          "name": {
-            "type": [
-              "string",
-              "null"
-            ]
-          },
-          "terms_url": {
-            "type": [
-              "string",
-              "null"
-            ]
-          },
-          "url": {
-            "type": [
-              "string",
-              "null"
-            ]
-          },
-          "verified_at": {
-            "type": [
-              "string",
-              "null"
-            ]
-          }
-        },
-        "required": [
-          "id",
-          "name",
-          "url",
-          "terms_url",
-          "verified_at"
-        ],
-        "type": "object"
-      },
-      "notices": {
-        "items": {
-          "type": "string"
-        },
-        "type": "array"
-      },
-      "retrieval": {
-        "anyOf": [
-          {
-            "additionalProperties": false,
-            "properties": {
-              "anomalies": {
-                "items": {
-                  "additionalProperties": false,
-                  "properties": {
-                    "count": {
-                      "maximum": 9007199254740991,
-                      "minimum": 1,
-                      "type": "integer"
-                    },
-                    "kind": {
-                      "enum": [
-                        "timeout",
-                        "network",
-                        "http_4xx",
-                        "http_5xx",
-                        "rate_limited",
-                        "malformed_body"
-                      ],
-                      "type": "string"
-                    }
-                  },
-                  "required": [
-                    "kind",
-                    "count"
-                  ],
-                  "type": "object"
-                },
-                "type": "array"
-              },
-              "attempts": {
-                "maximum": 9007199254740991,
-                "minimum": 1,
-                "type": "integer"
-              },
-              "requests": {
-                "maximum": 9007199254740991,
-                "minimum": 1,
-                "type": "integer"
-              },
-              "unstable": {
-                "type": "boolean"
-              }
-            },
-            "required": [
-              "requests",
-              "attempts",
-              "anomalies",
-              "unstable"
-            ],
-            "type": "object"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      },
-      "retrieved_at": {
-        "type": "string"
-      },
-      "served_from_cache": {
-        "type": [
-          "boolean",
-          "null"
-        ]
-      },
-      "source": {
-        "additionalProperties": false,
-        "properties": {
-          "agency": {
-            "type": [
-              "string",
-              "null"
-            ]
-          },
-          "database": {
-            "type": [
-              "string",
-              "null"
-            ]
-          },
-          "endpoint": {
-            "type": [
-              "string",
-              "null"
-            ]
-          },
-          "name": {
-            "type": "string"
-          }
-        },
-        "required": [
-          "name",
-          "agency",
-          "database",
-          "endpoint"
-        ],
-        "type": "object"
-      },
-      "source_url": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "contract_version",
-      "source",
-      "dataset",
-      "dimension_key",
-      "data_vintage",
-      "retrieved_at",
-      "source_url",
-      "api_version",
-      "license",
-      "citation",
-      "notices",
-      "derived",
-      "derivation_note",
-      "served_from_cache",
-      "retrieval",
-      "field_sources"
-    ],
-    "type": "object"
-  }
-]New value: +[
+  {
+    "additionalProperties": false,
+    "properties": {
+      "citation": {
+        "type": "string"
+      },
+      "data_vintage": {
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "field_sources": {
+        "items": {
+          "additionalProperties": false,
+          "properties": {
+            "data_vintage": {
+              "type": [
+                "string",
+                "null"
+              ]
+            },
+            "dataset_id": {
+              "type": [
+                "string",
+                "null"
+              ]
+            },
+            "fields": {
+              "items": {
+                "type": "string"
+              },
+              "minItems": 1,
+              "type": "array"
+            },
+            "retrieved_at": {
+              "type": [
+                "string",
+                "null"
+              ]
+            },
+            "served_from_cache": {
+              "type": [
+                "boolean",
+                "null"
+              ]
+            },
+            "source_url": {
+              "type": "string"
+            }
+          },
+          "required": [
+            "fields",
+            "source_url",
+            "dataset_id",
+            "data_vintage",
+            "retrieved_at"
+          ],
+          "type": "object"
+        },
+        "minItems": 1,
+        "type": "array"
+      },
+      "license": {
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "retrieval": {
+        "anyOf": [
+          {
+            "additionalProperties": false,
+            "properties": {
+              "anomalies": {
+                "items": {
+                  "additionalProperties": false,
+                  "properties": {
+                    "count": {
+                      "maximum": 9007199254740991,
+                      "minimum": 1,
+                      "type": "integer"
+                    },
+                    "kind": {
+                      "enum": [
+                        "timeout",
+                        "network",
+                        "http_4xx",
+                        "http_5xx",
+                        "rate_limited",
+                        "malformed_body"
+                      ],
+                      "type": "string"
+                    }
+                  },
+                  "required": [
+                    "kind",
+                    "count"
+                  ],
+                  "type": "object"
+                },
+                "type": "array"
+              },
+              "attempts": {
+                "maximum": 9007199254740991,
+                "minimum": 1,
+                "type": "integer"
+              },
+              "requests": {
+                "maximum": 9007199254740991,
+                "minimum": 1,
+                "type": "integer"
+              },
+              "unstable": {
+                "type": "boolean"
+              }
+            },
+            "required": [
+              "requests",
+              "attempts",
+              "anomalies",
+              "unstable"
+            ],
+            "type": "object"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "retrieved_at": {
+        "type": "string"
+      },
+      "source": {
+        "type": "string"
+      },
+      "source_url": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "source",
+      "source_url",
+      "data_vintage",
+      "retrieved_at",
+      "retrieval",
+      "citation",
+      "license"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "api_version": {
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "citation": {
+        "type": "string"
+      },
+      "contract_version": {
+        "enum": [
+          "1.1",
+          "1.2"
+        ],
+        "type": "string"
+      },
+      "data_vintage": {
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "dataset": {
+        "additionalProperties": false,
+        "properties": {
+          "id": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "name": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "version": {
+            "type": [
+              "string",
+              "null"
+            ]
+          }
+        },
+        "required": [
+          "id",
+          "version",
+          "name"
+        ],
+        "type": "object"
+      },
+      "derivation_note": {
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "derived": {
+        "type": "boolean"
+      },
+      "dimension_key": {
+        "anyOf": [
+          {
+            "additionalProperties": {
+              "type": "string"
+            },
+            "propertyNames": {
+              "type": "string"
+            },
+            "type": "object"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "field_sources": {
+        "anyOf": [
+          {
+            "items": {
+              "additionalProperties": false,
+              "properties": {
+                "data_vintage": {
+                  "type": [
+                    "string",
+                    "null"
+                  ]
+                },
+                "dataset_id": {
+                  "type": [
+                    "string",
+                    "null"
+                  ]
+                },
+                "fields": {
+                  "items": {
+                    "type": "string"
+                  },
+                  "minItems": 1,
+                  "type": "array"
+                },
+                "retrieved_at": {
+                  "type": [
+                    "string",
+                    "null"
+                  ]
+                },
+                "served_from_cache": {
+                  "type": [
+                    "boolean",
+                    "null"
+                  ]
+                },
+                "source_url": {
+                  "type": "string"
+                }
+              },
+              "required": [
+                "fields",
+                "source_url",
+                "dataset_id",
+                "data_vintage",
+                "retrieved_at"
+              ],
+              "type": "object"
+            },
+            "type": "array"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "license": {
+        "additionalProperties": false,
+        "properties": {
+          "id": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "name": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "terms_url": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "url": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "verified_at": {
+            "type": [
+              "string",
+              "null"
+            ]
+          }
+        },
+        "required": [
+          "id",
+          "name",
+          "url",
+          "terms_url",
+          "verified_at"
+        ],
+        "type": "object"
+      },
+      "notices": {
+        "items": {
+          "type": "string"
+        },
+        "type": "array"
+      },
+      "retrieval": {
+        "anyOf": [
+          {
+            "additionalProperties": false,
+            "properties": {
+              "anomalies": {
+                "items": {
+                  "additionalProperties": false,
+                  "properties": {
+                    "count": {
+                      "maximum": 9007199254740991,
+                      "minimum": 1,
+                      "type": "integer"
+                    },
+                    "kind": {
+                      "enum": [
+                        "timeout",
+                        "network",
+                        "http_4xx",
+                        "http_5xx",
+                        "rate_limited",
+                        "malformed_body"
+                      ],
+                      "type": "string"
+                    }
+                  },
+                  "required": [
+                    "kind",
+                    "count"
+                  ],
+                  "type": "object"
+                },
+                "type": "array"
+              },
+              "attempts": {
+                "maximum": 9007199254740991,
+                "minimum": 1,
+                "type": "integer"
+              },
+              "requests": {
+                "maximum": 9007199254740991,
+                "minimum": 1,
+                "type": "integer"
+              },
+              "unstable": {
+                "type": "boolean"
+              }
+            },
+            "required": [
+              "requests",
+              "attempts",
+              "anomalies",
+              "unstable"
+            ],
+            "type": "object"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "retrieved_at": {
+        "type": "string"
+      },
+      "served_from_cache": {
+        "type": [
+          "boolean",
+          "null"
+        ]
+      },
+      "source": {
+        "additionalProperties": false,
+        "properties": {
+          "agency": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "database": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "endpoint": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "name": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "name",
+          "agency",
+          "database",
+          "endpoint"
+        ],
+        "type": "object"
+      },
+      "source_url": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "contract_version",
+      "source",
+      "dataset",
+      "dimension_key",
+      "data_vintage",
+      "retrieved_at",
+      "source_url",
+      "api_version",
+      "license",
+      "citation",
+      "notices",
+      "derived",
+      "derivation_note",
+      "served_from_cache",
+      "retrieval",
+      "field_sources"
+    ],
+    "type": "object"
+  }
+]

Changed2 schema fields changedSep 27, 2026

addedOutput schema / properties / provenance / anyOf

Added value: +[
+  {
+    "additionalProperties": false,
+    "properties": {
+      "citation": {
+        "type": "string"
+      },
+      "data_vintage": {
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "license": {
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "retrieval": {
+        "anyOf": [
+          {
+            "additionalProperties": false,
+            "properties": {
+              "anomalies": {
+                "items": {
+                  "additionalProperties": false,
+                  "properties": {
+                    "count": {
+                      "maximum": 9007199254740991,
+                      "minimum": 1,
+                      "type": "integer"
+                    },
+                    "kind": {
+                      "enum": [
+                        "timeout",
+                        "network",
+                        "http_4xx",
+                        "http_5xx",
+                        "rate_limited",
+                        "malformed_body"
+                      ],
+                      "type": "string"
+                    }
+                  },
+                  "required": [
+                    "kind",
+                    "count"
+                  ],
+                  "type": "object"
+                },
+                "type": "array"
+              },
+              "attempts": {
+                "maximum": 9007199254740991,
+                "minimum": 1,
+                "type": "integer"
+              },
+              "requests": {
+                "maximum": 9007199254740991,
+                "minimum": 1,
+                "type": "integer"
+              },
+              "unstable": {
+                "type": "boolean"
+              }
+            },
+            "required": [
+              "requests",
+              "attempts",
+              "anomalies",
+              "unstable"
+            ],
+            "type": "object"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "retrieved_at": {
+        "type": "string"
+      },
+      "source": {
+        "type": "string"
+      },
+      "source_url": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "source",
+      "source_url",
+      "data_vintage",
+      "retrieved_at",
+      "retrieval",
+      "citation",
+      "license"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "api_version": {
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "citation": {
+        "type": "string"
+      },
+      "contract_version": {
+        "const": "1.1",
+        "type": "string"
+      },
+      "data_vintage": {
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "dataset": {
+        "additionalProperties": false,
+        "properties": {
+          "id": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "name": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "version": {
+            "type": [
+              "string",
+              "null"
+            ]
+          }
+        },
+        "required": [
+          "id",
+          "version",
+          "name"
+        ],
+        "type": "object"
+      },
+      "derivation_note": {
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "derived": {
+        "type": "boolean"
+      },
+      "dimension_key": {
+        "anyOf": [
+          {
+            "additionalProperties": {
+              "type": "string"
+            },
+            "propertyNames": {
+              "type": "string"
+            },
+            "type": "object"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "field_sources": {
+        "anyOf": [
+          {
+            "items": {
+              "additionalProperties": false,
+              "properties": {
+                "data_vintage": {
+                  "type": [
+                    "string",
+                    "null"
+                  ]
+                },
+                "dataset_id": {
+                  "type": [
+                    "string",
+                    "null"
+                  ]
+                },
+                "fields": {
+                  "items": {
+                    "type": "string"
+                  },
+                  "minItems": 1,
+                  "type": "array"
+                },
+                "retrieved_at": {
+                  "type": [
+                    "string",
+                    "null"
+                  ]
+                },
+                "source_url": {
+                  "type": "string"
+                }
+              },
+              "required": [
+                "fields",
+                "source_url",
+                "dataset_id",
+                "data_vintage",
+                "retrieved_at"
+              ],
+              "type": "object"
+            },
+            "type": "array"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "license": {
+        "additionalProperties": false,
+        "properties": {
+          "id": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "name": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "terms_url": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "url": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "verified_at": {
+            "type": [
+              "string",
+              "null"
+            ]
+          }
+        },
+        "required": [
+          "id",
+          "name",
+          "url",
+          "terms_url",
+          "verified_at"
+        ],
+        "type": "object"
+      },
+      "notices": {
+        "items": {
+          "type": "string"
+        },
+        "type": "array"
+      },
+      "retrieval": {
+        "anyOf": [
+          {
+            "additionalProperties": false,
+            "properties": {
+              "anomalies": {
+                "items": {
+                  "additionalProperties": false,
+                  "properties": {
+                    "count": {
+                      "maximum": 9007199254740991,
+                      "minimum": 1,
+                      "type": "integer"
+                    },
+                    "kind": {
+                      "enum": [
+                        "timeout",
+                        "network",
+                        "http_4xx",
+                        "http_5xx",
+                        "rate_limited",
+                        "malformed_body"
+                      ],
+                      "type": "string"
+                    }
+                  },
+                  "required": [
+                    "kind",
+                    "count"
+                  ],
+                  "type": "object"
+                },
+                "type": "array"
+              },
+              "attempts": {
+                "maximum": 9007199254740991,
+                "minimum": 1,
+                "type": "integer"
+              },
+              "requests": {
+                "maximum": 9007199254740991,
+                "minimum": 1,
+                "type": "integer"
+              },
+              "unstable": {
+                "type": "boolean"
+              }
+            },
+            "required": [
+              "requests",
+              "attempts",
+              "anomalies",
+              "unstable"
+            ],
+            "type": "object"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "retrieved_at": {
+        "type": "string"
+      },
+      "served_from_cache": {
+        "type": [
+          "boolean",
+          "null"
+        ]
+      },
+      "source": {
+        "additionalProperties": false,
+        "properties": {
+          "agency": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "database": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "endpoint": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "name": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "name",
+          "agency",
+          "database",
+          "endpoint"
+        ],
+        "type": "object"
+      },
+      "source_url": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "contract_version",
+      "source",
+      "dataset",
+      "dimension_key",
+      "data_vintage",
+      "retrieved_at",
+      "source_url",
+      "api_version",
+      "license",
+      "citation",
+      "notices",
+      "derived",
+      "derivation_note",
+      "served_from_cache",
+      "retrieval",
+      "field_sources"
+    ],
+    "type": "object"
+  }
+]

addedOutput schema / properties / provenance / description

Added value: +"Provenance block (contract v1.1). concise (default): source, source_url, data_vintage, retrieved_at, retrieval, citation, license; detailed: the full canonical block (dataset, dimension_key, notices, served_from_cache, ...). retrieval is the origin diagnostic of this call — requests made to ILOSTAT, attempts including retries, anomalies overcome (timeout, network, rate_limited, http_5xx, http_4xx, malformed_body) and unstable (true when anything had to be retried: treat the figures as obtained with difficulty); null when nothing was fetched from ILOSTAT (catalogue or cached answer)"

Changed1 schema field changedSep 11, 2026
- addedInput schema / additionalProperties
```
Added value: +false
```
First observedSep 6, 2026

TDQS

A4.6/5.0

Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already cover the safety profile (readOnly, idempotent, non-destructive, openWorld), and the description adds real behavioral context: it returns only id+label, does NOT return statistical values, does NOT indicate which codes have data, is not applicable to time, and codelists are shared across dataflows. It does not mention result ordering or the default paging cap implications, so it stops just short of the top mark.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Front-loaded with the core purpose and examples, then alternatives, then exclusions. Dense and mostly waste-free, though the single long paragraph packs several distinct ideas that would read better as separate sentences.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Annotations, a fully described 6-parameter schema, and an output schema are all present, and the description fills the remaining conceptual gaps (shared codelists, absence of statistical values, time-dimension exclusion) that an agent would otherwise guess wrong about.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100% so the baseline is 3; the description goes beyond it by explaining the search parameter's real use ('search "Brazil"') and by mapping the dimension parameter to the time-dimension exclusion with start_period/end_period. It adds no guidance on limit/offset tuning or provenance_mode, leaving a small gap.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

States a specific resource (valid codes, id+label, of one dimension of a dataflow) with concrete examples (REF_AREA ISO alpha-3, SEX_T/SEX_M/SEX_F). An agent can distinguish this codelist-listing tool from ilo_get_data and ilo_get_indicator_metadata without opening either schema.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Explicit when-to-use (build correct ilo_get_data filters), an alternative with its condition ('use search to resolve a name to a code ... instead of paging through hundreds of codes'), and explicit when-not (time dimension, which is filtered via start_period/end_period).

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

All ILO Labour Statistics (ILOSTAT): unemployment, wages, informality tools Inspect

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