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mcp-mgccli

mcp-mgccli

MCP server for read-only queries on Magalu Cloud via mgc CLI.

Exposes 7 MCP tools (one per product), covering list and get operations. All authentication is handled via API key — no credentials in the code.

Requirements

  • Python 3.11+

  • mgc CLI v0.54.0+ in PATH

  • Magalu Cloud API key with read permissions

Related MCP server: cloud-chat-assistant

Installation

pip install -e /caminho/para/mcp-mgccli

Configuration

Copy the example file and fill in your API key:

cp .env.example .env

.env:

MGC_API_KEY=sua-api-key-aqui
MGC_REGION=br-ne1   # opcional — br-ne1 ou br-se1
MGC_TIMEOUT=30      # opcional — timeout em segundos (default: 30)

Integration with Claude Code

The server is started automatically via start-mcp.sh, which loads the .env. To register:

claude mcp add --scope user mgc /caminho/para/mcp-mgccli/start-mcp.sh

Or add it manually to ~/.claude.json:

{
  "mcpServers": {
    "mgc": {
      "command": "/caminho/para/mcp-mgccli/start-mcp.sh"
    }
  }
}

Integration with Claude Desktop

Edit ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows):

{
  "mcpServers": {
    "mgc": {
      "command": "/caminho/para/mcp-mgccli/start-mcp.sh"
    }
  }
}

Available Tools

Tool

Resources

block_storage

volumes, snapshots, volume-types, schedulers

virtual_machine

instances, images, machine-types, snapshots

kubernetes

cluster, nodepool, flavor, version

dbaas

instances, clusters, replicas, snapshots, engines, instance-types, parameter-groups

network

vpcs, security-groups, public-ips, ports, subnetpools, subnets¹, rules¹

container_registry

registries, repositories, images, proxy-caches

audit

events, event-types

¹ subnets and rules are sub-resources — they require parent_id for list:

  • subnets list: parent_id=<vpc-id>

  • rules list: parent_id=<security-group-id>

Common Parameters

Parameter

Type

Description

resource

string

Resource to query (see table above)

action

list

get

Operation

id

string

Resource ID (required for get)

region

string

br-ne1 or br-se1 — overrides MGC_REGION

parent_id

string

Parent resource ID (only for network with subnets/rules)

Region Inference

Claude infers the region automatically from natural language:

Mention

Region

"northeast", "ne", "NE1"

br-ne1

"southeast", "se", "SE1"

br-se1

If the region is not mentioned and MGC_REGION is not set, Claude will ask before executing.

Usage Examples

"Liste minhas VMs no nordeste"
"Quais volumes existem no sudeste?"
"Mostre detalhes do cluster Kubernetes abc-123"
"Liste os security groups da região br-ne1"
"Quais subnets existem na VPC 7211a812-f159-4757-a6ba-c09933a5f6d8?"
"Liste as regras do security group bf8743af-f14b-4f31-917e-8e8160cff838"

Development

# instalar em modo editável
pip install -e .

# rodar testes
python -m pytest tests/ -v

Available Tools

7 tools
auditB

Consulta eventos de Audit da Magalu Cloud (somente leitura).

Recursos: events, event-types. Audit é global — sem parâmetro de região.

ParametersJSON Schema
NameRequiredDescriptionDefault
resourceYes
actionYes
idNo

Output Schema

ParametersJSON Schema
NameRequiredDescription
resultYes

TDQS

B3.4/5.0
Behavior3/5

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

With no annotations, the description carries the full burden. It correctly indicates read-only behavior and global scope, but lacks details on pagination, rate limits, or how the optional 'id' parameter affects 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?

The description is two sentences and contains no extraneous information. It is well-front-loaded but could add more details without becoming verbose.

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

Completeness3/5

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

Given the existence of an output schema and the tool's simplicity, the description provides the essential scope (read-only, global). However, it lacks guidance on when to use 'list' vs 'get' or the role of 'id', leaving the agent with incomplete context.

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 0%, so the description must compensate. It partially does by listing the allowed resources, matching the 'resource' enum. However, it does not explain the 'action' or 'id' parameters, which are necessary for correct invocation.

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

Purpose4/5

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

The description clearly states it's for consulting Audit events (read-only) and lists the specific resources (events, event-types). This effectively distinguishes it from sibling tools which focus on other cloud services.

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

Usage Guidelines3/5

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

The description mentions it's read-only and global (no region parameter), providing some context. However, it does not explicitly state when to use this tool versus alternatives or provide exclusions, leaving room for ambiguity.

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

block_storageD
ParametersJSON Schema
NameRequiredDescriptionDefault
resourceYes
actionYes
idNo
regionNo
expandNo
nameNo

Output Schema

ParametersJSON Schema
NameRequiredDescription
resultYes

TDQS

D1/5.0
Behavior1/5

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

Tool has no description.

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

Conciseness1/5

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

Tool has no description.

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

Completeness1/5

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

Tool has no description.

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

Parameters1/5

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

Tool has no description.

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

Purpose1/5

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

Tool has no description.

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

Usage Guidelines1/5

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

Tool has no description.

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

container_registryD
ParametersJSON Schema
NameRequiredDescriptionDefault
resourceYes
actionYes
idNo
regionNo

Output Schema

ParametersJSON Schema
NameRequiredDescription
resultYes

TDQS

D1/5.0
Behavior1/5

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

Tool has no description.

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

Conciseness1/5

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

Tool has no description.

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

Completeness1/5

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

Tool has no description.

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

Parameters1/5

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

Tool has no description.

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

Purpose1/5

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

Tool has no description.

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

Usage Guidelines1/5

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

Tool has no description.

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

dbaasD
ParametersJSON Schema
NameRequiredDescriptionDefault
resourceYes
actionYes
idNo
regionNo

Output Schema

ParametersJSON Schema
NameRequiredDescription
resultYes

TDQS

D1/5.0
Behavior1/5

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

Tool has no description.

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

Conciseness1/5

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

Tool has no description.

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

Completeness1/5

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

Tool has no description.

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

Parameters1/5

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

Tool has no description.

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

Purpose1/5

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

Tool has no description.

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

Usage Guidelines1/5

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

Tool has no description.

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

kubernetesD
ParametersJSON Schema
NameRequiredDescriptionDefault
resourceYes
actionYes
idNo
regionNo

Output Schema

ParametersJSON Schema
NameRequiredDescription
resultYes

TDQS

D1/5.0
Behavior1/5

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

Tool has no description.

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

Conciseness1/5

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

Tool has no description.

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

Completeness1/5

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

Tool has no description.

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

Parameters1/5

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

Tool has no description.

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

Purpose1/5

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

Tool has no description.

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

Usage Guidelines1/5

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

Tool has no description.

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

networkD
ParametersJSON Schema
NameRequiredDescriptionDefault
resourceYes
actionYes
idNo
regionNo
parent_idNo

Output Schema

ParametersJSON Schema
NameRequiredDescription
resultYes

TDQS

D1/5.0
Behavior1/5

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

Tool has no description.

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

Conciseness1/5

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

Tool has no description.

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

Completeness1/5

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

Tool has no description.

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

Parameters1/5

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

Tool has no description.

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

Purpose1/5

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

Tool has no description.

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

Usage Guidelines1/5

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

Tool has no description.

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

virtual_machineD
ParametersJSON Schema
NameRequiredDescriptionDefault
resourceYes
actionYes
idNo
regionNo
expandNo

Output Schema

ParametersJSON Schema
NameRequiredDescription
resultYes

TDQS

D1/5.0
Behavior1/5

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

Tool has no description.

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

Conciseness1/5

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

Tool has no description.

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

Completeness1/5

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

Tool has no description.

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

Parameters1/5

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

Tool has no description.

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

Purpose1/5

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

Tool has no description.

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

Usage Guidelines1/5

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

Tool has no description.

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

TDQS

D1.7/5.0
Disambiguation1/5

Six of the seven tools have no descriptions, making it impossible to distinguish their specific functions beyond the generic resource names. Only 'audit' has a description, but the others are ambiguous.

Naming Consistency4/5

All tool names are single-word, lowercase nouns (e.g., 'audit', 'network'), following a consistent pattern. However, they lack verbs, which is unconventional for MCP tool naming.

Tool Count4/5

With 7 tools, the count is reasonable for a cloud service provider's MCP interface, covering several major resource categories without being excessive.

Completeness2/5

The set covers core services like compute, storage, networking, and databases, but without descriptions, it's unclear what operations are available. The lack of detail suggests significant gaps in the tool surface.

Maintenance

ActivityInactive
ResponsivenessNo issues

Resources

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