create_match_one_request

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

Annotations already declare readOnlyHint=true and destructiveHint=false. The description adds that it fetches data and makes no changes, which is consistent but not additive beyond the annotations for safety. No disclosure of rate limits or authentication requirements.

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?

The description is extremely concise: three short sentences with an emoji, HTTP method, and endpoint. All information is front-loaded, and no redundant or wasteful text.

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?

For a simple two-parameter read operation with full annotation coverage, the description is adequate. It explains the endpoint and that no changes are made. However, lacking an output schema, a brief note on what is returned would improve completeness.

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?

Both parameters (contactId and segmentId) are fully described in the schema (100% coverage). The description adds no additional meaning or constraints beyond the schema, providing no extra context for parameter usage.

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 fetches data via GET /segmentMatch/{segmentId}/{contactId} and makes no changes. It identifies the resource (Match One Request) and the action (create, though actually a read). The READ-ONLY label and endpoint pattern distinguish it from siblings like create_match_all_request, though not explicitly.

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?

No guidance on when to use this tool vs alternatives such as create_match_all_request or segment_match_check_by_external_id. The description does not mention prerequisites or typical scenarios.

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