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

Annotations already declare readOnlyHint, idempotentHint, and non-destructive, so the safety profile is covered. The description adds real domain semantics beyond that: 'sendable is the exact body only when the record is approved' and 'Suggestions are not the record,' which prevents misreading the payload.

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, zero filler, and the core action is front-loaded before the two disambiguating clauses about 'sendable' and 'suggestions.' Every sentence earns its place.

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 structure need not be explained, and the description appropriately focuses on the semantic caveat about what 'sendable' means, which is essential given the ambiguous domain jargon. Only the absence of routing guidance to siblings leaves a minor gap.

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 0%, so the description carries the burden, yet it says nothing about wordingId beyond what the name implies (a uuid identifier). With a single self-evident required parameter, the gap is small, but no added meaning is provided.

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?

The description states a specific verb and resource: 'Read one wording record and its suggestions.' The word 'one' implicitly separates it from the list_sendable_wording sibling, but no sibling is named, so the differentiation is inferential rather than explicit.

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?

Usage is only implied by 'one' versus the sibling list tool; there is no explicit when-to-use or when-not-to-use guidance, and alternatives such as list_sendable_wording or suggest_sendable_change are never mentioned. Adequate minimum, but the agent must infer the routing.

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