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mcp-server-pacman

mcp-server-pacman

by oborchers
OverviewSchemaSourceRelated ServersDiscussionsAdmin
Python
Remote

search_docker_image

Search Docker Hub for images by name or search term. Control the number of results with an optional limit.

Instructions

Search for Docker images in Docker Hub

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "query": "<query>"
    },
    "name": "search_docker_image"
  }
}

Input Schema

NameRequiredDescriptionDefault
queryYesImage name or search query
limitNoMaximum number of results to return

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.0.0

TDQS

B3.2/5.0
Behavior2/5

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

With no annotations, the description carries the full burden, but it only states the function without disclosing behavioral traits like read-only nature, rate limits, or default pagination. Basic search behavior is implied but not explicitly guaranteed.

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 a single, efficient sentence with no repetition or fluff. While brief, it front-loads the core purpose, earning points for conciseness, though slightly more context could fit 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 no output schema and simple parameters, the description suffices for a basic search. However, it does not clarify return format (e.g., tags, repositories, pagination), leaving some ambiguity for an agent. Adequate but not fully complete.

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 input schema covers 100% of parameters with clear descriptions (e.g., 'Image name or search query', 'Maximum number of results'). The description adds no extra meaning beyond the schema, so a baseline score of 3 is appropriate.

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 verb 'Search' and the resource 'Docker images' with location 'Docker Hub', making the purpose unmistakable. It effectively distinguishes from sibling tools like `docker_image_info` and `search_package`.

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 is provided on when to use this tool versus alternatives such as `docker_image_info` (for details) or `search_package` (for non-Docker packages). The description lacks any context for tool selection.

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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