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

With no annotations provided, the description carries the full disclosure burden. "No key" usefully indicates no authentication is required, but nothing is said about result format, relevance ranking, result limits, or whether it reads live data versus cached docs.

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?

Three short sentences with the core purpose front-loaded and zero padding. The middle sentence ("The search shape ChatGPT connectors use") is jargon that conveys little to an agent, but it costs only one line.

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 one-param search tool there is no output schema or annotations to lean on, so the description should say more about what comes back and how it differs from search_docs. It is minimally adequate but leaves real gaps for an agent choosing between near-identical siblings.

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 100% and the single parameter is documented in the schema, so the baseline is 3. The description adds no query syntax, filtering, or formatting guidance beyond the bare "query" field.

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?

"Search FanDuel API docs and answers" gives a specific verb and target corpus, so an agent knows it is a documentation/answer lookup. However, there is a sibling literally named search_docs, and the description makes no attempt to separate the two, leaving ambiguity about which to pick.

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?

There is no explicit when-to-use or when-not-to-use guidance, and no mention of an alternative such as search_docs or fetch_doc. The only usage signal is the terse "No key", which hints at unauthenticated access but says nothing about selection.

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