kadam_adv_update_campaign_bid

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

Annotations already provide idempotentHint=true. Description adds valuable behavioral details: error on unknown countries, re-bidding all when omitted, and that only bids are changed. No contradictions.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

Two sentences, no wasted words. The first sentence front-loads the core purpose. Every sentence adds distinct value.

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

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

Despite no output schema, the description fully covers behavior: what it changes, constraints, error handling, and alternative tool. Complete for a focused bid update tool.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

All three parameters have schema descriptions (100% coverage). The description adds crucial context for 'countries' parameter: it only accepts existing campaign countries, not for adding, and omission re-bids all. This goes beyond the schema.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool changes only bids for countries already targeted, explicitly distinguishing it from kadam_adv_update_campaign which adds/changes countries. The use of 'ONLY' and 'does NOT change geo' makes the specific resource and verb clear.

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

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

Explicitly tells when to use this tool versus kadam_adv_update_campaign for geo changes. Also clarifies behavior on unknown countries (error) and omission of countries (re-bid all current).

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