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Check several versions at once

check_stack
Read-onlyIdempotent

Check up to 50 product versions, e.g. everything in a Dockerfile, docker-compose.yml or server inventory.

Input Schema

NameRequiredDescriptionDefault
itemsYes

Output Schema

NameRequiredDescriptionDefault
resultsYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observed

TDQS

A3.6/5.0
Behavior3/5

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

Annotations already declare readOnlyHint=true, idempotentHint=true, and openWorldHint=false, so safety and repeatability are covered. The description adds the batch limit and examples of suitable sources, but does not discuss partial failures, output shape, or rate limits. With annotations present, this is adequate but not rich.

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?

It is a single, front-loaded sentence with no wasted words. The batch limit and example inputs are both included efficiently.

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

Completeness4/5

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

An output schema exists, so the description need not explain return values. Annotations cover the safety profile, and the description covers the batch use case. Minor gaps around partial failures or duplicate handling remain but are not essential for invoking the tool.

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?

The description conveys that the tool accepts product versions in bulk and caps at 50, which aligns with the single items parameter. The schema itself defines the nested product/version fields, though context reports 0% top-level schema description coverage. The description does not explain the item structure beyond the high-level batch concept.

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 states a specific verb and resource: check up to 50 product versions at once. The Dockerfile/docker-compose/server-inventory examples make the batch purpose concrete. It implies differentiation from check_version via 'up to 50' but does not explicitly name the sibling alternative.

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 examples indicate intended usage for batch inventories, files, and configs. However, it does not explicitly say when to use check_stack instead of check_version or when not to use it. Usage is clearly implied but not fully guided.

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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