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

Annotations already declare readOnly=true, idempotent=true, destructive=false, so the safety profile is known. The description adds nothing beyond that — no note on what validation result is produced, whether a failed validation throws or returns a payload, or what the :id identifies.

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?

The same path sentence is duplicated verbatim, and the operation ID hash occupies space without telling the agent anything. Structure is front-loaded but the content is filler rather than specification.

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 nested-parameter read tool with no output schema and 0% schema documentation, the description should at minimum identify the resource being validated and the ID's domain. Neither is present, leaving the agent reliant on describe_operation for anything usable.

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% for two parameters (nested params.id plus a free-form query object). The description does not explain what 'id' refers to (lease ID? validation run?) or what query options exist; the bare pointer to describe_operation is only a marginal assist.

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 restates the HTTP path twice and adds an opaque operation ID, never explaining what 'validate lease' actually returns or checks. An agent learns only that this is a GET on /api/validate/lease/:id, which is already encoded in the tool name and title.

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?

There is no statement of when to use this tool versus the many lease-related siblings (get_leases_by_id_*, get_lease_determination_by_leaseId_*, get_validate_period_by_id_*). The only redirection is to describe_operation for request schemas, which is a schema lookup, not usage guidance.

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