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google_ads_bid_adjustments_get

Retrieve bid adjustments (bid modifiers) for a Google Ads campaign. Returns criterion ID, type, bid modifier value, and device type for device criteria.

Instructions

List every campaign_criterion row that has a non-null bid_modifier on a Google Ads campaign. Returns [{criterion_id, type (CriterionType enum string, e.g. 'DEVICE', 'LOCATION', 'AD_SCHEDULE'), bid_modifier (float), device_type ('DESKTOP'|'MOBILE'|'TABLET' for DEVICE criteria; 'UNKNOWN()' for non-DEVICE rows such as LOCATION or AD_SCHEDULE, where n is the raw device-type enum ordinal — never null)}]. Read-only. For the device-summary view (all three devices, even implicit ones) use google_ads_device_targeting_get. For location-only use google_ads_location_targeting_list.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
customer_idNoGoogle Ads customer ID as a 10-digit string without dashes (e.g. '1234567890'). Optional — falls back to GOOGLE_ADS_CUSTOMER_ID / GOOGLE_ADS_LOGIN_CUSTOMER_ID from the configured credentials when omitted.
campaign_idYesCampaign ID as a numeric string without dashes (e.g. '23743184133'). Obtain via google_ads_campaigns_list.
Behavior5/5

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

Discloses read-only nature, details output structure including criterion_id, type, bid_modifier, and device_type behavior for both DEVICE and non-DEVICE rows. No annotations provided, but description compensates fully.

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?

Very concise; five sentences front-loaded with purpose and output details, followed by read-only note and alternatives. No wasted words.

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?

Lacks output schema, but description compensates with detailed output format. Covers all necessary aspects: purpose, output structure, read-only nature, and alternatives. Complete for a listing tool with two parameters.

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 baseline is 3. Description adds minimal extra meaning: only notes that campaign_id can be obtained via google_ads_campaigns_list, which is a hint but does not deepen semantic understanding of parameters.

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?

Description uses specific verb 'List' and resource 'campaign_criterion rows with non-null bid_modifier', clearly distinguishing from sibling tools like google_ads_device_targeting_get and google_ads_location_targeting_list.

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

Usage Guidelines5/5

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

Explicitly states when to use this tool and provides alternatives for device-summary (google_ads_device_targeting_get) and location-only (google_ads_location_targeting_list) use cases.

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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