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

Annotations already cover read-only, idempotent, non-destructive and closed-world. The description adds genuinely new context: the result contract (id/title/link), the id→fetch workflow, and a prompt-injection caution that transcript/summary text is verbatim participant speech to be treated as data, not instructions. That safety guidance is well beyond what the annotations declare.

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?

Four short sentences, purpose and result shape front-loaded, then routing to siblings, then the data-vs-instructions warning. Every sentence does work; only the injection caution is somewhat tangential to a search tool's own behavior, though it is relevant to the content returned.

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?

An output schema exists so return values need not be re-explained, and the annotations cover the safety profile. The description nonetheless supplies the result shape, the follow-up fetch path and the sibling alternative, leaving little an agent needs missing before invoking it.

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?

There is one parameter with 0% schema description coverage, so the description must carry the meaning. 'By meaning and by keywords' implies the query accepts natural language as well as literal terms, which is useful, but the 500-character cap and 2-character minimum are left to the schema and no query-construction guidance is given.

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?

States a specific verb and resource ('Find the user's meetings') plus the retrieval mode ('by meaning and by keywords, best match first') and the result shape (id, title, link). It explicitly differentiates itself from the sibling search_meetings by naming what that tool adds (date, attendee, folder filters).

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?

Gives clear routing: use this for plain semantic/keyword search, use search_meetings when you need date, attendee or folder filters, and pass a returned id to fetch. It stops short of stating any exclusion condition for this tool itself, but the alternative is named with its selecting condition.

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