Senado BR — Brazilian Federal Senate Open Data

Agenda das comissões

senado_agenda_comissoes

Read-onlyIdempotent

Fetch the agenda of Brazilian Federal Senate committee meetings for a specific date, optionally filtered by committee acronym. Returns meeting times, locations, types, and statuses.

Instructions

Obtém a agenda de reuniões de todas as comissões numa data (data YYYYMMDD; padrão: hoje), com filtro opcional siglaComissao. Retorna { data, siglaComissao, count, reunioes }, cada reunião com codigo, comissao (sigla, nome), descricao, data, hora, local, tipo e situacao. Para o histórico de uma única comissão por período use senado_reunioes_comissao; para detalhes de uma reunião use senado_reuniao_comissao com o codigo.

Input Schema

TableJSON Schema

Name	Required	Description	Default
`data`	No	Data específica (YYYYMMDD)
`siglaComissao`	No	Filtrar por comissão específica

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

Added value: +{
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addedOutput schema / properties / provenance

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+          "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

A4.6/5.0

Behavior4/5

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

Annotations already declare readOnly, idempotent, non-destructive and openWorld, so the safety profile is covered. The description adds the behavioral default ('padrão: hoje') and the exact response envelope and per-meeting fields, which is useful context beyond the annotations, though it stops short of noting rate limits or error behavior.

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 action and parameters, then the return shape, then the sibling routing – a sensible order. It is dense and packs the full return schema into one sentence, which is slightly more verbose than strictly necessary for selection.

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?

The tool has no required parameters and an output schema exists, so return values need explaining only lightly, which the description nonetheless supplies. Parameters, default, filter semantics and sibling disambiguation are all present; nothing needed to invoke it correctly is missing.

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% and each parameter is described there, so the baseline would be 3. The description nevertheless adds meaning the schema omits: the default value of `data` when absent (today) and the fact that `siglaComissao` is an optional narrowing filter rather than a required selector.

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 ('Obtém a agenda de reuniões de todas as comissões'), the scoping dimension (a single date), and the optional filter. It explicitly distinguishes itself from senado_reunioes_comissao and senado_reuniao_comissao by naming their distinct scopes, 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?

Gives explicit routing rules: use this tool for the agenda of all commissions on a date, use senado_reunioes_comissao for a single commission's history over a period, and senado_reuniao_comissao (with `codigo`) for one meeting's details. When-to-use and when-to-use-something-else are both covered.

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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