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Google Ads by Get MCP Ads

google ads get keyword performance

google_ads_get_keyword_performance
Read-onlyIdempotent

Retrieve keyword-level Google Ads performance for a customer and date range, including quality score, impressions, clicks, and cost to assess and optimize keyword campaigns.

Instructions

Get keyword-level performance data from keyword_view resource. Shows quality score, impressions, clicks, cost.

Input Schema

NameRequiredDescriptionDefault
limitNoMaximum number of returned items or rows. The declared bounds and default apply; use pagination for additional results.
endDateYesEnd date YYYY-MM-DD
startDateYesStart date YYYY-MM-DD
customerIdYesGoogle Ads customer ID (without dashes, e.g., 1234567890)

Output Schema

NameRequiredDescriptionDefault
resultYesOriginal tool result: parsed JSON when the text is JSON, otherwise the text or multiple MCP content blocks. Provider fields depend on the selected query.

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed2 schema fields changedv2.1.1
    • removedInput schema / additionalProperties
      Removed value: -false
    • changedOutput schema / properties / result / anyOf
      Previous value: -[
      -  {
      -    "additionalProperties": true,
      -    "properties": {},
      -    "type": "object"
      -  },
      -  {
      -    "items": {},
      -    "type": "array"
      -  },
      -  {
      -    "type": "string"
      -  },
      -  {
      -    "type": "number"
      -  },
      -  {
      -    "type": "boolean"
      -  },
      -  {
      -    "type": "null"
      -  }
      -]New value: +[
      +  {
      +    "additionalProperties": {},
      +    "properties": {},
      +    "type": "object"
      +  },
      +  {
      +    "items": {},
      +    "type": "array"
      +  },
      +  {
      +    "type": "string"
      +  },
      +  {
      +    "type": "number"
      +  },
      +  {
      +    "type": "boolean"
      +  },
      +  {
      +    "type": "null"
      +  }
      +]
  2. First observedv2.0.1

TDQS

B3.2/5.0
Behavior3/5

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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false, and openWorldHint, so the safety profile is covered. The description adds value by naming the underlying resource (keyword_view) and the metric set, but says nothing about pagination, row-limit behavior, or how the date range is applied to keyword_view data.

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?

Two short sentences with the resource and metric list front-loaded and no filler. Slightly terse for a data-retrieval tool, but every sentence earns its place.

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?

An output schema exists, so return values need not be explained, and annotations cover the safety profile. However, for a filtered performance-report tool with a sibling set this large, the description omits routing guidance and pagination/limit behavior, leaving real gaps.

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 all four parameters (customerId, startDate, endDate, limit) are already documented in the schema. The description adds no additional parameter semantics, such as whether the date range constrains performance metrics or how limit interacts with pagination, so the baseline of 3 applies.

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 and resource ('Get keyword-level performance data from keyword_view') and enumerates the metrics returned (quality score, impressions, clicks, cost). An agent can distinguish this from sibling resources like campaigns or search terms, though it never explicitly names a sibling alternative.

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 on when to choose this over alternatives such as google_ads_run_gaql, google_ads_get_search_terms, or google_ads_get_campaigns. There are no stated prerequisites (customer ID format, date-range expectations) beyond what the schema already carries.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.