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

Annotations already declare readOnlyHint=false, idempotentHint=false, destructiveHint=true, so the safety profile is covered. The description adds only that it re-sends the *last* notification rather than composing new content, and says nothing about the non-idempotent consequence (each call sends another email) or failure modes.

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?

One front-loaded sentence with zero waste. It is appropriately sized for a trivial single-parameter tool, though it is arguably terse enough to leave the gaps noted above.

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 non-idempotent, destructive-hinted mutation with no output schema and an undocumented parameter, the description omits preconditions, side effects, and failure behavior. It is not sufficient to call the tool confidently beyond the happy path.

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% and the single `id` is generically described as 'the UUID of the resource.' The description never mentions the identifier or clarifies that it is the agreement ID, so it does not compensate for the coverage gap.

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: 'resend the last notification email to the agreement recipient.' An agent can distinguish this from send-agreement (initial send) and void-agreement without opening a schema. It never names those siblings explicitly, so it falls short of a 5.

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?

No when-to-use statement, no alternatives named, and no prerequisites. It does not say whether this requires the agreement to already be in a sent/signed state, or when to prefer a fresh send-agreement call over a resend.

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