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Creadal

by com.creadal
OverviewDiscussionsAdmin

Find a packaging model

list_packaging_models
Read-only

Browse the packaging you can design on Creadal: boxes, pouches, bottle and jar labels, cans, cups, bags, sacks, pillow packs, mugs, t-shirts, tote bags, keychains and sneakers. Each model comes with its sizes, a photo-real preview picture and its page. Use it to pick the model for create_packaging_design or to show someone what is possible. Free, no account needed.

Tool call template

This tool declares no required parameters. Add optional parameters from the input schema as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {},
    "name": "list_packaging_models"
  }
}

Input Schema

NameRequiredDescriptionDefault
queryNoOptional words to narrow the list, e.g. 'coffee pouch', 'tuck end box', 'jar'.
categoryNoOptional category: boxes, labels, cans, jars, cups, pouches, bags, pillow-packs, mugs, t-shirts, tote-bags, keychains, sneakers.
languageNoLanguage of the names and label texts: en (default), tr or ar.

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observed

TDQS

A4.1/5.0
Behavior4/5

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

Annotations already declare readOnlyHint=true and openWorldHint=false, so the safety profile is covered. The description adds value the annotations do not: auth is not required ('no account needed') and it discloses the shape of each returned item (sizes, photo-real preview, page). It omits pagination/result-count behavior, so not a 5.

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?

Front-loads the core action ('Browse the packaging you can design') and then the workflow hook. The long item enumeration is informative but heavy; it roughly duplicates the category parameter values, keeping it short of a 5.

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?

For a read-only catalog with full schema coverage and no output schema, the description covers return contents, auth, and downstream purpose. Missing only pagination/ordering details, which matter for an unbounded list endpoint.

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 query, category and language are already fully documented with examples and enum values. The description's category enumeration mirrors the schema's category list rather than adding format or usage nuance, so the baseline 3 is correct.

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?

States a specific verb+resource (browse the packaging models available on Creadal) and enumerates the catalog contents so the agent knows exactly what comes back. It also names create_packaging_design as the downstream consumer, which separates it from sibling list tools like list_templates and list_themes.

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

Usage Guidelines4/5

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

Gives explicit usage context: use it to pick a model for create_packaging_design or to preview what is possible. It does not, however, contrast itself against the other catalog-listing siblings (list_templates, list_themes), so an agent choosing among list endpoints gets no exclusion guidance.

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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