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retrieve_firewall_list

Read-onlyIdempotent

Lists and filters all firewalls on your Contabo account, allowing pagination, ordering, and filtering by name or instance IDs.

Instructions

List all firewalls [GET /v1/firewalls] List and filter all firewalls on your account

Input Schema

NameRequiredDescriptionDefault
nameNoThe name of the firewall
pageNoNumber of page to be fetched.
sizeNoNumber of elements per page.
orderByNoSpecify fields and ordering (ASC for ascending, DESC for descending) in following format `field:ASC|DESC`.
x-trace-idNoIdentifier to trace group of requests.
instanceIdsNoComma separated instance IDs.

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.1.0

TDQS

C2.9/5.0
Behavior2/5

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

Annotations already declare readOnlyHint=true, idempotentHint=true, destructiveHint=false and openWorldHint=true, so the safety profile is fully covered. The description adds nothing beyond the HTTP route: no pagination defaults, no note on how filtering combines, no indication of result size or ordering behavior.

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

Conciseness3/5

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

It is short, but the two clauses are largely redundant ('List all firewalls' / 'List and filter all firewalls'), and the bracketed '[GET /v1/firewalls]' is implementation detail that adds little for an agent.

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?

Six optional parameters, full schema coverage and rich annotations mean the structured data carries most of the load, but with no output schema the description should at least note that results are paginated and that size/page control the result window. Adequate but with clear gaps.

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%, so name, page, size, orderBy, x-trace-id and instanceIds are all documented in the schema. The description's word 'filter' adds only a hint that filtering exists and does not map to any specific parameter, so baseline 3 applies.

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?

States a specific verb and resource ('List all firewalls') plus scope ('on your account'), which implicitly separates it from retrieve_firewall (single) and create/delete_firewall siblings. It never names a sibling explicitly, so it falls short of a 5.

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

Usage Guidelines2/5

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

The description gives no when-to-use guidance, no mention of when to prefer retrieve_firewall for a single lookup, and no prerequisites. 'List and filter' only implies usage rather than explaining it.

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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