create_placement

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

Discloses the endpoint used ('/exd-placements') and the necessity of 'confirmed: true', but lacks details on side effects, authorization needs, or other behavioral traits. With no annotations, the description carries the full burden and does a minimum but adequate job.

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 concise sentences that front-load the purpose and critical requirement. No fluff, but could be slightly expanded for key parameters.

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?

Given 6 parameters, no output schema, and no annotations, the description is incomplete. It does not explain core concepts like placements or channel types, making it hard for an agent to use correctly.

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?

Schema description coverage is 0%. The description only mentions 'name', 'channel', and 'confirmed' indirectly, with some semantics for 'confirmed'. Other parameters (status, description, access_token) are not explained. Insufficient for a 6-parameter tool.

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?

Clearly states it creates a channel placement for Experience Decisioning, with specific verb and resource. However, does not distinguish from sibling creation tools like bulk_create_offers or create_collection.

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?

Provides a key requirement: 'Requires confirmed: true to execute.' This gives usage guidance but no comparison to alternatives or when-not-to-use.

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