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Google Images

google_images
Read-onlyIdempotent

Searches Google Images and returns up to 20 image results (title, original image URL, source page link, thumbnail and dimensions when available), with size, colour, type, aspect-ratio and licence filters. It does not download image files and does not return web pages (use google_search). Image rights stay with the source; the licence filter does not grant them. A search with no matches is charged; errors are not. Required: query.

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": "google_images"
  }
}

Input Schema

NameRequiredDescriptionDefault
tbsNoAdvanced Google Images filter expression copied from a search URL, e.g. "qdr:w" for the past week; omitted means no filter. No option surcharge; 10 credits per successful request.
pageNoZero-based results page, integer at least 0, e.g. 1 for the second page; default 0. No option surcharge; 10 credits per successful request.
safeNoAdult-content filter: active or off, e.g. "active"; default off. No option surcharge; 10 credits per successful request.
imgarNoAspect ratio: s (square), t (tall), w (wide), xw (panoramic), e.g. "w"; omitted means any. No option surcharge; 10 credits per successful request.
imgszNoImage size such as l, m, i, vga or 2mp, e.g. "l" for large; omitted means any size. No option surcharge; 10 credits per successful request.
queryYesRequired Google Images search keywords, e.g. "espresso machine"; no default. No option surcharge; 10 credits per successful request.
domainNoGoogle search domain, e.g. "google.co.uk"; default google.com. No option surcharge; 10 credits per successful request.
countryNoTwo-letter search country code, e.g. "it"; default us. No option surcharge; 10 credits per successful request.
languageNoResult language code, e.g. "it"; default en. No option surcharge; 10 credits per successful request.
licensesNoLicense filter: f, fc, fm, fmc, cl or ol, e.g. "cl"; omitted means any license. Verify rights with the source before reuse. No option surcharge; 10 credits per successful request.
image_typeNoImage type: face, photo, clipart, lineart or animated, e.g. "photo"; omitted means any type. No option surcharge; 10 credits per successful request.
image_colorNoColor filter such as bw, trans, red, blue or white, e.g. "bw"; omitted means any color. No option surcharge; 10 credits per successful request.

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed12 schema fields changed
    • changedInput schema / properties / country / description
      Previous value: -"Two-letter search country code; default us. No option surcharge; 10 credits per successful request."New value: +"Two-letter search country code, e.g. \"it\"; default us. No option surcharge; 10 credits per successful request."
    • changedInput schema / properties / domain / description
      Previous value: -"Google search domain; default google.com. No option surcharge; 10 credits per successful request."New value: +"Google search domain, e.g. \"google.co.uk\"; default google.com. No option surcharge; 10 credits per successful request."
    • changedInput schema / properties / image_color / description
      Previous value: -"Color filter such as bw, trans, red, blue or white; omitted means any color. No option surcharge; 10 credits per successful request."New value: +"Color filter such as bw, trans, red, blue or white, e.g. \"bw\"; omitted means any color. No option surcharge; 10 credits per successful request."
    • changedInput schema / properties / image_type / description
      Previous value: -"Image type: face, photo, clipart, lineart or animated; omitted means any type. No option surcharge; 10 credits per successful request."New value: +"Image type: face, photo, clipart, lineart or animated, e.g. \"photo\"; omitted means any type. No option surcharge; 10 credits per successful request."
    • changedInput schema / properties / imgar / description
      Previous value: -"Aspect ratio: s (square), t (tall), w (wide), xw (panoramic); omitted means any. No option surcharge; 10 credits per successful request."New value: +"Aspect ratio: s (square), t (tall), w (wide), xw (panoramic), e.g. \"w\"; omitted means any. No option surcharge; 10 credits per successful request."
    • changedInput schema / properties / imgsz / description
      Previous value: -"Image size such as l, m, i, vga or 2mp; omitted means any size. No option surcharge; 10 credits per successful request."New value: +"Image size such as l, m, i, vga or 2mp, e.g. \"l\" for large; omitted means any size. No option surcharge; 10 credits per successful request."
    • changedInput schema / properties / language / description
      Previous value: -"Result language code; default en. No option surcharge; 10 credits per successful request."New value: +"Result language code, e.g. \"it\"; default en. No option surcharge; 10 credits per successful request."
    • changedInput schema / properties / licenses / description
      Previous value: -"License filter: f, fc, fm, fmc, cl or ol; verify rights with the source before reuse. No option surcharge; 10 credits per successful request."New value: +"License filter: f, fc, fm, fmc, cl or ol, e.g. \"cl\"; omitted means any license. Verify rights with the source before reuse. No option surcharge; 10 credits per successful request."
    • changedInput schema / properties / page / description
      Previous value: -"Zero-based results page, integer at least 0; default 0. No option surcharge; 10 credits per successful request."New value: +"Zero-based results page, integer at least 0, e.g. 1 for the second page; default 0. No option surcharge; 10 credits per successful request."
    • changedInput schema / properties / query / description
      Previous value: -"Required Google Images search keywords; no default. No option surcharge; 10 credits per successful request."New value: +"Required Google Images search keywords, e.g. \"espresso machine\"; no default. No option surcharge; 10 credits per successful request."
    • changedInput schema / properties / safe / description
      Previous value: -"Adult-content filter: active or off; default off. No option surcharge; 10 credits per successful request."New value: +"Adult-content filter: active or off, e.g. \"active\"; default off. No option surcharge; 10 credits per successful request."
    • changedInput schema / properties / tbs / description
      Previous value: -"Advanced Google Images filter expression copied from a search URL; omitted means no filter. No option surcharge; 10 credits per successful request."New value: +"Advanced Google Images filter expression copied from a search URL, e.g. \"qdr:w\" for the past week; omitted means no filter. No option surcharge; 10 credits per successful request."
  2. Added

TDQS

A4.5/5.0
Behavior5/5

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

Beyond the readOnly/openWorld/idempotent annotations, the description discloses result limits and fields, excludes downloading and web pages, notes that image rights remain with the source, and states billing behavior for no-match searches versus errors. These are valuable operational details the annotations do not provide.

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 front-loaded with what the tool does and returns, followed by exclusions, legal caution, and billing. Every sentence carries useful information for calling or interpreting the tool, with no wasted wording.

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?

For a 12-parameter search tool with no output schema, the description covers return content, result limits, filter categories, required input, exclusions, rights, and billing. The schema handles per-parameter syntax, so the description completes the picture without needing to repeat it.

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 coverage is 100%, so the input schema already documents all 12 parameters with examples and defaults. The description adds only category-level mentions of filters and the required query, without syntax or semantics beyond what the schema provides.

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 states a specific verb and resource: searches Google Images and returns up to 20 image results with named fields. It explicitly distinguishes itself from google_search by saying it does not return web pages, and from download-oriented tools by saying it does not download image files.

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?

It gives clear context for image searching and explicitly routes web page searches to google_search. However, it does not name an alternative for downloading image files, so the exclusion is stated without a corresponding alternative.

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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