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Docker Image Inspect

docker_image_inspect

Inspect a Docker image by reference to retrieve detailed configuration, layers, and metadata from an fnOS NAS.

Instructions

查看镜像详细信息(inspect)。

Input Schema

NameRequiredDescriptionDefault
hostNoNAS 主机地址(IP 或域名)
portNoNAS 端口,如 5667(HTTPS)/5666(HTTP)/443
schemeNo传输协议
profileNo独立 session profile 名称,默认使用 default
image_refYes镜像引用,如 nginx:latest

Output Schema

NameRequiredDescriptionDefault
resultYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.4.2

TDQS

C2.6/5.0
Behavior2/5

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

No annotations are provided, so the description carries the full behavioral burden, yet it discloses nothing beyond the implicit read-only nature of '查看'. It does not state whether the NAS host connection must already be configured, whether authentication is required, or what the inspect payload contains, which matters for a tool with host/port/scheme/profile connection parameters.

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?

A single short sentence with zero padding and the resource front-loaded. It is efficient, though its brevity reflects under-specification rather than genuine economy of information.

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?

An output schema exists, so return values need not be explained, but the tool involves NAS host/connection parameters and auth context that the description never addresses. For a 5-parameter Docker inspect tool with no annotations, a one-line restatement of the title leaves real 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 all five parameters (including host, port, scheme, profile, image_ref) are already documented in the schema with examples. The description adds no parameter-level detail, so the baseline 3 for high schema coverage applies.

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

Purpose3/5

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

The phrase '查看镜像详细信息(inspect)' names the resource (image) and the action (view details), but largely restates the tool name and the parenthetical '(inspect)' adds nothing. An agent can guess the resource is a Docker image, but the description does not differentiate it from the sibling docker_container_inspect or clarify what 'detail' covers.

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?

There is no when-to-use guidance, no mention of alternatives (docker_images, docker_container_inspect), and no prerequisites such as needing a valid host/login session. The agent must infer usage entirely from the name.

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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