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

Annotations already declare readOnly/idempotent/non-destructive/closed-world, so the safety profile is covered. The description adds the sort order ('ledger's default order') and the free-tier cap of 25, which is useful tier context, but says nothing about return fields, pagination, or why the 'different address after registration' clause matters beyond defining the level.

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 dense sentence is front-loaded with the core resource and scope, with the tier cap trailing. Nothing is padded, though the parenthetical definition is embedded awkwardly inside the main clause.

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 read-only list tool with no output schema, the definition covers what is returned, the ordering, and the item cap, which is adequate. It remains silent on what fields an agent record contains and on pagination/tier upgrade paths, leaving gaps for an agent consuming the results.

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 50%: min_level is documented in the schema but limit is not. The description mentions the L7+ floor (loosely tied to min_level) and the 25 cap (tied to limit's max), but adds no syntax or default-value meaning beyond the schema, so it only marginally compensates for the 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?

The description states a specific resource (top ranked agents) with an inline definition of the L7+ threshold, so an agent knows it returns a ranked agent list. However, it never names or distinguishes itself from sibling list/search tools like find_agent or agent_record, and the verb is only implied.

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?

Only 'Free tier: up to 25' hints at a usage constraint; there is no explicit when-to-use, when-not, or alternative tool named among the many siblings. The agent must infer when ranked_agents is preferable to find_agent.

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