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

Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, safely covering the side-effect profile. The description adds behavioral context by explaining that the tool inspects current state and returns a tool plus pre-filled arguments, rather than performing the action itself. No contradiction with annotations.

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 description is compact and front-loaded, leading with the core question and then the purpose. The parenthetical state-to-action mapping is dense but directly useful, and every sentence contributes to the agent's understanding of what the tool returns and why it exists.

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?

Given that the tool has no parameters, an output schema is present, and annotations cover the safety profile, the description is complete. It tells the agent what the tool returns (next tool plus pre-filled args), how it decides (current state), and why it adds value (avoids full catalog reasoning).

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?

There are zero parameters, and the schema description explicitly states that no arguments are needed because the owner is derived from the authenticated principal. The description reinforces this by indicating the recommendation is computed from 'your current state', which is exactly what the schema means. Baseline 4 for a no-parameter tool is appropriate.

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 clearly states the verb and resource: it returns a recommendation for the next action on A2AWire, with the single next tool and pre-filled args. It also distinguishes itself from sibling action tools by framing itself as the orchestration layer that removes the need to reason over the full catalog.

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 description gives concrete usage context by mapping current user state (unregistered, unverified, verified) to the appropriate recommended action. It does not explicitly name sibling tools to avoid, but the message 'so you do not have to reason over the full catalog' clearly establishes when this tool is the right choice instead of browsing the catalog manually.

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