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List assets

list_assets
Read-onlyIdempotent

List image, background, and inline SVG assets found in one page capture (linked URLs and data:image/svg+xml). This does not enumerate font files.

Input Schema

NameRequiredDescriptionDefault
pageYesCaptured page key returned by list_pages or get_application_manifest, not a URL or filesystem path.
viewYesExact stored profile key from list_pages.views (desktop, mobile, numbered profiles or a device label); do not pass the operating system here.
productYesProduct key, for example finance-ozon-ru
versionYesExact capture version returned by list_versions. Pin the same version across related calls; do not use latest as an alias.
environmentNoEnvironment ID from the selected backend platform type in list_platforms.options.platforms[].environments[].id (backend implementation). Omit only when the version has one captured environment. Use captured pairs from list_platforms/list_versions for actual availability.

Output Schema

NameRequiredDescriptionDefault
resultYesPage media inventory

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed4 schema fields changed
    • addedInput schema / properties / page / description
      Added value: +"Captured page key returned by list_pages or get_application_manifest, not a URL or filesystem path."
    • addedInput schema / properties / product / description
      Added value: +"Product key, for example finance-ozon-ru"
    • addedInput schema / properties / version / description
      Added value: +"Exact capture version returned by list_versions. Pin the same version across related calls; do not use latest as an alias."
    • changedOutput schema / (root)
      Previous value: -nullNew value: +{
      +  "$schema": "https://json-schema.org/draft/2020-12/schema",
      +  "additionalProperties": false,
      +  "description": "Structured result. Existing text or image content remains available in content.",
      +  "properties": {
      +    "result": {
      +      "description": "Page media inventory",
      +      "items": {
      +        "description": "Captured asset URL or inline SVG data URL",
      +        "type": "string"
      +      },
      +      "type": "array"
      +    }
      +  },
      +  "required": [
      +    "result"
      +  ],
      +  "type": "object"
      +}
  2. 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, idempotentHint, and destructiveHint=false, so the safety profile is covered. The description adds useful behavioral detail about what counts as an asset (linked URLs and data:image/svg+xml) and what is deliberately omitted (fonts). It says nothing about pagination, volume, or permissions, so it adds some but not rich context.

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?

Two tightly written sentences, front-loaded with the core scope and followed by a single high-value exclusion. Every clause earns its place with no filler.

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 return values need not be explained, and annotations cover the safety profile. The description is complete enough for a read-only listing tool, though it could better situate itself among the many similarly named sibling list/get tools.

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 the schema already documents all five parameters, including required page, view, product, and version keys. The description adds no parameter-level meaning, which is acceptable given the schema's completeness, but it does not compensate or extend beyond it.

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?

States a specific verb (List) and resource (image, background, and inline SVG assets) scoped to a single page capture, and explicitly excludes font files. It does not differentiate from close siblings like list_archived_assets or list_product_assets, but the page-capture scope and the font exclusion still make the purpose clear.

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 context ('found in one page capture') and provides one exclusion ('This does not enumerate font files'), which helps route font queries elsewhere. However, it never names an alternative tool or states when to prefer this over list_archived_assets, list_product_assets, or get_capture_asset, so usage guidance remains implicit.

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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