Senado BR — Brazilian Federal Senate Open Data

Discursos no plenário

senado_discursos_plenario

Read-onlyIdempotent

List all plenary speeches within a required date range. Provide start and end dates in YYYYMMDD to retrieve speech summaries, parliamentarian names, parties, and URLs.

Instructions

Lista todos os discursos realizados em plenário num período de datas (dataInicio/dataFim obrigatórias, formato YYYYMMDD). Retorna { periodo, count, discursos }, cada item com codigo, data, casa, tipoUsoPalavra, resumo, indexacao, url, nomeParlamentar, codigoParlamentar, partido e uf. Para discursos de um parlamentar específico use senado_discursos_senador; obtenha o texto integral com senado_discurso_texto.

Input Schema

TableJSON Schema

Name	Required	Description	Default
`dataFim`	Yes	Data fim (YYYYMMDD)
`dataInicio`	Yes	Data início (YYYYMMDD)

Output Schema

TableJSON Schema

Name	Required	Description	Default
`provenance`	Yes
`attribution`	Yes

Schema Changelog

Changes observed during successful MCP inspections.

Changed1 schema field changedv3.18.4Oct 14, 2026

changedOutput schema / properties / provenance / anyOf

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Changed3 schema fields changedv3.15.2Oct 7, 2026

addedOutput schema / properties / attribution

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addedOutput schema / properties / provenance

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+          "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

A4.5/5.0

Behavior4/5

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

Annotations already declare readOnly/idempotent/openWorld/non-destructive, so the safety profile is covered. The description goes beyond them by enumerating the exact return payload (periodo, count, discursos) and the per-item fields, which tells the agent what to expect from the call. It stops short of noting pagination, volume limits, or date-range restrictions, so not a 5.

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

Conciseness5/5

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

Three sentences, front-loaded with purpose, then return shape, then sibling routing. No filler and each sentence carries distinct information the 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?

For a two-parameter read-only list tool with an output schema and full annotation coverage, the description supplies purpose, mandatory inputs, return structure, and disambiguation from the two closest siblings. Nothing needed to call it correctly is missing.

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 description coverage is 100% and both parameters are documented in the schema with the YYYYMMDD pattern. The description restates the required status and format, which is redundant rather than additive, so the baseline 3 applies.

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 ('Lista todos os discursos realizados em plenário') plus the scoping dimension (date range). It explicitly distinguishes itself from senado_discursos_senador (per-parliamentarian) and senado_discurso_texto (full text), so an agent can route without opening any 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?

Names two alternatives and the exact condition that selects each: use senado_discursos_senador for a specific parliamentarian, senado_discurso_texto for the full text. It also flags that dataInicio/dataFim are obligatory, which is the key precondition for calling it at all.

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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