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List curated itch.io pack downloads

itch_list_downloads

Read-only

Resolve a fresh no-account itch.io download page and list its upload IDs, names, sizes, license, and safe suggested filenames. Signed page tokens are never returned.

Instructions

Resolve a fresh no-account itch.io download page and list its upload IDs, names, sizes, license, and safe suggested filenames. Signed page tokens are never returned.

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": {
      "packId": "<packId>"
    },
    "name": "itch_list_downloads"
  }
}

Input Schema

Name	Required	Description	Default
`packId`	Yes

Output Schema

Name	Required	Description	Default
`name`	Yes
`packId`	Yes
`caution`	No
`license`	Yes
`downloads`	Yes
`sourcePageUrl`	Yes
`attributionRequired`	Yes

Schema Changelog

Changes observed during successful MCP inspections.

Addedv0.1.1Sep 14, 2026

TDQS

A4.1/5.0

Behavior4/5

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

Annotations already declare the tool as read-only and open-world. The description adds meaningful behavioral context: it explicitly states that no account is required and that signed page tokens are never returned, which addresses a potential security or privacy concern. This goes beyond the annotations and helps the agent understand the tool's safety and access model.

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?

The description is two sentences and front-loaded. The first sentence delivers the core purpose and output, and the second sentence adds a critical security note. Every clause earns its place with no redundancy or fluff.

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

Completeness5/5

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

Given that the tool has a single parameter with clear enums, a read-only annotation, and an existing output schema, the description is complete. It covers the action, the resource, the output fields, and the important behavioral note about tokens. No gaps are present for this level of complexity.

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 single parameter packId has an enum list of specific values, which are self-explanatory. Schema description coverage is 0%, but the description does not need to add meaning because the enum values and tool name already convey the parameter's purpose. The description adds 'fresh no-account' context, which is not parameter-specific but useful. A score of 3 is appropriate: the description does not hinder understanding but neither does it enhance the schema significantly.

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 action (resolve and list uploads), the resource (itch.io pack download page without account), and the specific information returned (upload IDs, names, sizes, license, filenames). It distinguishes this tool from siblings like itch_download_asset, which performs downloads instead of listing.

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 description implies the tool is for listing available downloads from a pack, but it does not explicitly state when to use it versus alternatives like itch_download_asset, nor does it provide prerequisites or exclusions. The context from sibling names helps infer the intended use, but the description itself lacks direct 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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