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

The annotations mark this as non-read-only, open-world and non-idempotent, which would normally signal side effects; the description usefully resolves that tension by stating 'Nothing is run or charged' and 'No key needed'. It also previews the response contents, though it does not say whether a request can be resubmitted or how duplicates are handled given non-idempotency.

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, front-loaded with the key 'No key needed' fact and the side-effect disclaimer before the return-value list. No filler, though the return list is a dense comma chain that is slightly harder to parse than a short enumeration.

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?

With no output schema, the description compensates by enumerating the response fields, and it covers the safety and cost profile that annotations alone would leave ambiguous. An agent has enough to decide to call it, what to expect back, and that nothing is executed.

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%, so the schema already documents all seven parameters including the enum values and the 'one paragraph' guidance for question. The description adds no parameter-level meaning beyond what the schema provides, which is acceptable at full coverage.

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 concrete verb and resource ('sends a study request to a person') and enumerates what comes back (request_id, tier, price band, next step). It differentiates itself from the job-running siblings by declaring 'Nothing is run or charged', though it never names create_job/start_job/submit_job directly.

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?

'Call it after reading a guide' and 'Nothing is run or charged' imply this is a pre-job quoting step, which is helpful sequencing. However, there is no explicit when-not or named alternative among the many job-related siblings (create_job, start_job, submit_job, preflight_deck), so the agent must infer the boundary.

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