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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false, so the safety profile is fully covered. The description's only added value is that the response includes the form definition and settings — useful, but thin for a read-only tool whose annotations carry most of the burden.

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?

A single front-loaded sentence with no filler; the payload ('definition and settings') comes immediately after the action. Nothing to trim, though it is so short that it barely structures anything.

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 one-param read tool with full annotation coverage, the description covers what it fetches and hints at the returned content. No output schema exists, but 'definition and settings' is sufficient signal about the response.

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?

One parameter with 100% schema description coverage ('Form ID (frm_xxx)'), so the schema fully documents it. The description adds nothing about the id format or behavior on invalid IDs. Baseline 3 applies.

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?

Specific verb+resource: 'Retrieve a signup form' with the scope 'definition and settings', which distinguishes it from list-forms (enumeration) and update-form (mutation). It does not name those siblings explicitly, so it stops short of full differentiation.

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 verb 'Retrieve' plus the required single form ID implies lookup-by-identifier, letting an agent infer when to use this over list-forms. But there is no explicit when/when-not guidance and no alternative tool is named.

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