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Glama

Contabo (VPS) MCP Server

Remove instance from a Private Network

unassignInstancePrivateNetwork
Destructive

Remove instance from a Private Network - Remove a specific instance from a Private Network

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
instanceIdYes
x-trace-idNo
x-request-idYes
privateNetworkIdYes

Schema Changelog

Changes observed during successful MCP inspections. Dates show when Glama detected each change.

  1. Changed1 schema field changed
    • removedInput schema / properties / x-hapi-auth-state
      Removed value: -{
      -  "type": "string"
      -}
  2. First observed

TDQS

C2.6/5.0
Behavior2/5

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

Annotations already declare destructiveHint=true, so the agent knows it is a mutation. The description adds no behavioral context beyond repeating the action; it does not disclose what happens to the instance's network connectivity, whether the action is reversible, or any side effects. With annotations present, the bar is lower, but the description contributes zero additional transparency.

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

Conciseness2/5

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

The description is short but redundant: 'Remove instance from a Private Network - Remove a specific instance from a Private Network' is essentially the same statement twice. The second sentence adds no information, so it fails to earn its place. A single concise sentence would have been more effective.

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

Completeness2/5

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

For a simple removal operation, the description is insufficiently complete. It lacks any mention of return values (no output schema), prerequisites, side effects, or parameter semantics. While annotations signal destructiveness, the overall contextual picture is minimal, offering no guidance for an agent deciding whether to invoke this tool.

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?

Schema description coverage is 0% and the description provides no parameter explanations. The four parameters (instanceId, privateNetworkId, x-request-id, x-trace-id) are left entirely to the schema's bare property names, which offer minimal semantic meaning. The description's phrase 'a specific instance' does not sufficiently clarify parameter roles.

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?

The description clearly states the tool's action and resource: 'Remove instance from a Private Network' with an explicit repetition reinforcing the specific operation. It distinguishes from siblings like assignInstancePrivateNetwork (the reverse) and deletePrivateNetwork (deleting the network itself), though the differentiation is implicit through the action verb and resource.

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?

No guidance on when to use this tool versus alternatives such as unassignIp (for IP unbinding) or deletePrivateNetwork. The description simply restates the action without context about prerequisites, reversibility, or scenarios that would favor this tool.

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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TDQS

C2.2/5.0
Disambiguation2/5

Many tools have clearly distinct CRUD roles per resource, but there are several confusing overlaps: start/stop/restart/shutdown/rescue are similar lifecycle actions, and there are duplicate audit tools like retrieveImageAuditsList and retrieveImageAuditsList1 (one even mislabeled as DNS Zones audit). Additionally, retrieveTagAuditsList appears to duplicate retrieveAssignmentsAuditsList, and updateDnsZoneRecord incorrectly says 'Create resource record'. These overlaps and mislabeled descriptions make it hard to pick the right tool.

Naming Consistency2/5

The naming is a mix of camelCase verb_noun patterns, but inconsistent. Some tools use 'retrieveXList' while others use 'listX', some use 'Cancel' with a capital letter, and 'tool_search' uses snake_case. Numeric suffixes like 'retrieveImageAuditsList1' and verbs like 'patchInstance' instead of 'updateInstance' further break consistency.

Tool Count1/5

With 124 tools, this is an extremely large tool surface for an MCP server. Even for a broad cloud provider API, this overwhelms an agent's context and selection capabilities. The number far exceeds reasonable scoping and creates unnecessary selection overhead.

Completeness4/5

The tool set covers a wide range of resources thoroughly: instances, snapshots, images, private networks, object storage, DNS, domains, tags, roles, users, secrets, and audits. Most resources have create/retrieve/update/delete lifecycle operations, and there are extensive audit history tools. Minor gaps exist (e.g., no explicit instance deletion besides cancel, no separate firewall management beyond upgradeInstance), but overall the surface is quite complete for its domain.