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

With no annotations, the description carries the full burden; it usefully discloses that the call is free, forbids personal information, and that the submission influences what gets built next. However, it doesn't say what the caller gets back or confirm it's a one-way submission, leaving meaningful gaps for a no-annotation tool.

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?

Compact single paragraph that front-loads the key qualifier ('Free') and the trigger before the mechanics. Slightly choppy phrasing but no wasted sentences.

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 5-param submission tool with no output schema and no annotations, the description covers cost, privacy, and the alternate HTTP endpoint. It stops short of describing the fate of the submission or any confirmation behavior, so it is adequate but not fully complete.

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 coverage is 100%, so every parameter is already documented in the schema; the description only reiterates the 'free, no personal information' constraint. Baseline 3 applies when the schema does the heavy lifting.

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 action (say/report what you needed) and its trigger condition ('Nothing fits?'), letting an agent distinguish it from find_tools as the fallback path. The name, title, and description align without tautology.

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?

The phrase 'Nothing fits?' clearly signals the context of use (after a search comes up empty), and the schema reference to a searchId from find_tools reinforces the sequence. It lacks an explicit 'use find_tools first' instruction, but the routing intent is inferable.

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