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

Annotations already declare readOnlyHint=true, idempotentHint=true, openWorldHint=true, and destructiveHint=false, so the safety profile is covered. The description adds useful behavioral context by revealing that the tool returns a single next tool plus pre-filled args and that the recommendation is derived from the caller's current state.

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, front-loaded with the user-facing question, and every sentence contributes meaning. It explains purpose, state-based behavior, and return value without redundancy.

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 zero-parameter tool with a full output schema and complete safety annotations, the description covers purpose, usage context, behavior, and return shape. Nothing essential is missing for an agent to select and invoke it correctly.

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?

The tool has zero parameters, and the schema description already states that the owner is derived from the authenticated principal. The description's mention of 'current state' adds relevant semantic context, though there are no parameter details to document.

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 uses a specific verb and resource ('get_recommended_action' for A2AWire) and clearly explains what it returns: the single next tool with pre-filled arguments. It directly distinguishes itself from the broader catalog by stating users do not have 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 provides excellent situational guidance by mapping current state to recommended actions (unregistered → register; unverified → start admission; verified → accept matching paid work or explore the board). It implies when to use it, but does not explicitly state when not to use it or name alternative tools directly.

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