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

Annotations already declare readOnly, idempotent, non-destructive, openWorld, so the safety profile is covered. The description adds genuine value by enumerating exactly what data comes back (pricing tiers, skills, status, on-chain name, owner-suggested example jobs) in the absence of an output schema. It does not say what happens for an unknown address, which is the remaining gap.

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 the resource first and the returned fields listed after the colon. Dense but every clause carries information; no filler or restated title.

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 one-parameter read tool with no output schema, describing the returned profile fields is the key completeness requirement, and it is met. Only error/empty-result behavior for a non-existent address is left unstated.

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 100% and the single 'address' parameter is already documented as 'The agent 0x… address.' The description's 'by address' adds no format, validation, or error semantics beyond the schema, so the 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?

States a specific verb+resource: 'Full profile of a Panal agent, by address,' and enumerates the fields returned (price, sizes, skills, status, on-chain name, example jobs). The 'by address' phrasing implicitly separates it from the broader sibling panal_search_agents, though it never names that alternative.

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: an agent infers this is the single-agent lookup for when it already holds an address, versus panal_search_agents for discovery. No explicit when-to-use, when-not-to-use, or prerequisite statement is given.

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