Senado BR — Brazilian Federal Senate Open Data

Resultados do plenário

senado_resultado_plenario

Read-onlyIdempotent

Retrieve plenary session results for a given date, including agenda items, opinions, and outcomes across Senate, Congress, or monthly summaries.

Instructions

Resultado das sessões plenárias numa data: itens de pauta apreciados, pareceres e resultados. Retorna { data, escopo, count, sessoes } (todas as sessões da data, sem paginação), com cada sessão trazendo codigoSessao, numeroSessao, data, hora, tipo, casa e itens (codigoMateria, identificacao, ementa, resultado, parecer — resultado/parecer podem vir null em itens ainda não deliberados). Sem sessão na data, count é 0 e sessoes vem vazio. escopo: sf (Senado), cn (Congresso) ou mes (resumo do mês). Para a pauta prévia use senado_agenda_plenario; orientação de bancada via senado_orientacao_bancada.

Input Schema

Name	Required	Description	Default
`data`	Yes	Data da sessão (YYYYMMDD); para escopo=mes, qualquer dia do mês
`escopo`	No	sf = Senado no dia; cn = Congresso no dia; mes = resumo do mês	sf

Output Schema

Name	Required	Description	Default
`provenance`	Yes	Bloco de proveniência do portfólio (projeção concise): source, source_url, data_vintage, retrieved_at (horário de Brasília), citation, license, revision e retrieval; field_sources só quando a resposta funde recortes, derived e derivation_note só nos modos de estatísticas. retrieval é o diagnóstico da ida à origem nesta chamada — requisições, tentativas com retentativas, anomalias superadas (timeout, network, rate_limited, http_5xx, http_4xx, malformed_body) e unstable (true quando algo precisou ser repetido) —, ou null quando não foi medido. Lista de blocos quando a chamada consulta várias fontes (índice do search).
`attribution`	Yes	URLs de origem dos dados (as source_url distintas dos blocos de proveniência, incluindo as de field_sources), para linkar a citação

Schema Changelog

Changes observed during successful MCP inspections.

Changed2 schema fields changedv3.23.0Oct 29, 2026

addedOutput schema / properties / attribution / description

Added value: +"URLs de origem dos dados (as source_url distintas dos blocos de proveniência, incluindo as de field_sources), para linkar a citação"

addedOutput schema / properties / provenance / description

Added value: +"Bloco de proveniência do portfólio (projeção concise): source, source_url, data_vintage, retrieved_at (horário de Brasília), citation, license, revision e retrieval; field_sources só quando a resposta funde recortes, derived e derivation_note só nos modos de estatísticas. retrieval é o diagnóstico da ida à origem nesta chamada — requisições, tentativas com retentativas, anomalias superadas (timeout, network, rate_limited, http_5xx, http_4xx, malformed_body) e unstable (true quando algo precisou ser repetido) —, ou null quando não foi medido. Lista de blocos quando a chamada consulta várias fontes (índice do search)."

Changed1 schema field changedv3.18.4Oct 14, 2026

changedOutput schema / properties / provenance / anyOf

Previous value: -[
-  {
-    "additionalProperties": false,
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-        "type": "string"
-      },
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-            "source_url": {
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-            "dataset_id",
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-            "retrieved_at"
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-      "license": {
-        "type": [
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-            "type": "object"
-          },
-          {
-            "type": "null"
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-        ]
-      },
-      "retrieved_at": {
-        "type": "string"
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-      "source_url": {
-        "type": "string"
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-    },
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-  {
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-                "type": [
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-          ]
-        },
-        "retrieval": {
-          "anyOf": [
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-              "properties": {
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-                        "type": "integer"
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-                          "rate_limited",
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-                "unstable": {
-                  "type": "boolean"
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-              "required": [
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-                "attempts",
-                "anomalies",
-                "unstable"
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-              "type": "object"
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-              "type": "null"
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-          ]
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-        "retrieved_at": {
-          "type": "string"
-        },
-        "source": {
-          "type": "string"
-        },
-        "source_url": {
-          "type": "string"
-        }
-      },
-      "required": [
-        "source",
-        "source_url",
-        "data_vintage",
-        "retrieved_at",
-        "retrieval",
-        "citation",
-        "license"
-      ],
-      "type": "object"
-    },
-    "minItems": 1,
-    "type": "array"
-  }
-]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": {
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+                  "properties": {
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+                      "minimum": 1,
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+                    },
+                    "kind": {
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+                        "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"
+              }
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+          {
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+        ]
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+      "retrieved_at": {
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+      "revision": {
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+        "properties": {
+          "note": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
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+              "provisional",
+              "final"
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+        "type": "object"
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+      "source": {
+        "type": "string"
+      },
+      "source_url": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "source",
+      "source_url",
+      "data_vintage",
+      "retrieved_at",
+      "retrieval",
+      "citation",
+      "license"
+    ],
+    "type": "object"
+  },
+  {
+    "items": {
+      "additionalProperties": false,
+      "properties": {
+        "citation": {
+          "type": "string"
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+        "data_vintage": {
+          "type": [
+            "string",
+            "null"
+          ]
+        },
+        "derivation_note": {
+          "type": "string"
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+        "derived": {
+          "type": "boolean"
+        },
+        "field_sources": {
+          "items": {
+            "additionalProperties": false,
+            "properties": {
+              "data_vintage": {
+                "type": [
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+                  "null"
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+              "dataset_id": {
+                "type": [
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+                  "null"
+                ]
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+              "fields": {
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+                "type": "array"
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+              "retrieved_at": {
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+              "served_from_cache": {
+                "type": [
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+                  "null"
+                ]
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+              "source_url": {
+                "type": "string"
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+            },
+            "required": [
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+              "dataset_id",
+              "data_vintage",
+              "retrieved_at"
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+            "type": "object"
+          },
+          "minItems": 1,
+          "type": "array"
+        },
+        "license": {
+          "type": [
+            "string",
+            "null"
+          ]
+        },
+        "notices": {
+          "items": {
+            "type": "string"
+          },
+          "minItems": 1,
+          "type": "array"
+        },
+        "retrieval": {
+          "anyOf": [
+            {
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+                        "minimum": 1,
+                        "type": "integer"
+                      },
+                      "kind": {
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+                          "http_4xx",
+                          "http_5xx",
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+                      }
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+                  "minimum": 1,
+                  "type": "integer"
+                },
+                "unstable": {
+                  "type": "boolean"
+                }
+              },
+              "required": [
+                "requests",
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+                "anomalies",
+                "unstable"
+              ],
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+            },
+            {
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+          ]
+        },
+        "retrieved_at": {
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+        },
+        "revision": {
+          "additionalProperties": false,
+          "properties": {
+            "note": {
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+            "status": {
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+            }
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+          "required": [
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+            "note"
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+          "type": "object"
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+        "source": {
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+        "source_url": {
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+      },
+      "required": [
+        "source",
+        "source_url",
+        "data_vintage",
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+        "retrieval",
+        "citation",
+        "license"
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+      "type": "object"
+    },
+    "minItems": 1,
+    "type": "array"
+  }
+]

Changed3 schema fields changedv3.15.2Oct 7, 2026

addedOutput schema / properties / attribution

Added value: +{
+  "items": {
+    "type": "string"
+  },
+  "type": "array"
+}

addedOutput schema / properties / provenance

Added value: +{
+  "anyOf": [
+    {
+      "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"
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+                  "type": "array"
+                },
+                "attempts": {
+                  "maximum": 9007199254740991,
+                  "minimum": 1,
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+                "requests": {
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+        "source_url": {
+          "type": "string"
+        }
+      },
+      "required": [
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+        "data_vintage",
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+        "retrieval",
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+        "license"
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+      "type": "object"
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+    {
+      "items": {
+        "additionalProperties": false,
+        "properties": {
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+          "data_vintage": {
+            "type": [
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+              "null"
+            ]
+          },
+          "field_sources": {
+            "items": {
+              "additionalProperties": false,
+              "properties": {
+                "data_vintage": {
+                  "type": [
+                    "string",
+                    "null"
+                  ]
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+              "required": [
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+                "source_url",
+                "dataset_id",
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+                "retrieved_at"
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+              "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"
+      },
+      "minItems": 1,
+      "type": "array"
+    }
+  ]
+}

addedOutput schema / required

Added value: +[
+  "provenance",
+  "attribution"
+]

Changed3 schema fields changedv3.9.0Sep 24, 2026

changedInput schema / $schema

Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"

addedInput schema / additionalProperties
```
Added value: +false
```

changedOutput schema / $schema

Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"

Changed2 schema fields changedv3.3.3Jul 6, 2026
- removedInput schema / additionalProperties
```
Removed value: -false
```
- changedOutput schema / additionalProperties
```
Previous value: -trueNew value: +{}
```
First observedv3.3.1Jun 25, 2026

TDQS

A4.4/5.0

Behavior4/5

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

Annotations already declare read-only, idempotent, open-world and non-destructive, so safety is covered; the description adds valuable behavioral detail beyond that: no pagination (all sessions returned), null resultado/parecer for undeliberated items, and the empty-result case (count=0, empty sessoes). It doesn't discuss auth or rate limits, but for an idempotent read this is close to complete.

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 purpose, then return shape, then edge cases, then sibling routing — a logical order with no filler. It is dense in a single paragraph, but every clause carries information an agent needs.

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?

Even though an output schema exists, the description fully specifies the return contract, the null and empty cases, and the routing alternatives, leaving nothing material for an agent to guess before calling.

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

Parameters3/5

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

Schema coverage is 100% and both parameters already carry descriptions and the escopo enum, so the baseline is 3. The description's mention of scopes and the month-summary semantics largely restates the schema rather than adding new format or edge-case guidance.

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 verb and resource ('Resultado das sessões plenárias numa data') plus the exact contents returned (itens de pauta, pareceres, resultados). It is clearly distinguishable from senado_agenda_plenario, which it explicitly names as the prior-agenda sibling.

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?

Explicitly routes the agent: use senado_agenda_plenario for the pre-session agenda and senado_orientacao_bancada for party voting guidance. The scope parameter's three modes (sf/cn/mes) are also tied to concrete use cases.

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

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