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

With no annotations, the description carries the full behavioral burden. It usefully discloses the cost ('Free'), but says nothing about whether registration is idempotent, what happens on duplicate names, whether the returned agentId persists, or why walletAddress matters for a free operation.

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 compact sentence with the incentive ('Free') front-loaded. No filler, though the phrasing is terse enough that some meaning (what an agentId is, how it's used) is left implicit.

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?

This is a write/mutation tool with no annotations, no output schema, and three entirely undocumented parameters. The description leaves the caller without enough to invoke it confidently, especially the walletAddress field and uniqueness expectations.

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 description explains none of the three parameters (name, description, walletAddress). It mentions 'agentId', which is not even an input parameter, so it adds no meaning for anything the caller must supply.

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 and resource ('register to get an agentId') plus the payoff ('used for attribution on paid calls'), so an agent knows this creates an agent identity rather than fetching one. It does not explicitly distinguish itself from siblings like get_agent or list_agents, which slightly caps the score.

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?

The phrase 'used for attribution on paid calls' implies when to register (before making paid calls needing attribution), but there is no explicit when-to-use vs. when-not guidance and no named alternative. Usage is inferable rather than stated.

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