claim_free_pro_upgrade

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It effectively communicates that the tool is deprecated and functions as a no-op for PRO agents, which is crucial context beyond basic functionality. However, it doesn't specify error handling or response format for non-PRO agents, leaving some behavioral aspects unclear.

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 extremely concise and front-loaded, consisting of just two sentences that efficiently convey all essential information: deprecation status, reason, and current behavior. Every word earns its place, with no redundancy or unnecessary details.

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 the tool's simplicity (1 parameter, no output schema, no annotations), the description is nearly complete. It covers purpose, usage, and behavioral context effectively. However, it lacks details on what happens if called by a non-PRO agent or the exact response format, leaving minor gaps in full contextual understanding.

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 schema description coverage is 100%, with the single parameter 'agent_key' fully documented in the schema. The description adds no additional parameter semantics beyond what the schema provides, such as format examples or validation rules. This meets the baseline for high schema coverage but doesn't enhance parameter understanding.

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 tool's purpose: it's a deprecated endpoint that was used for claiming free PRO upgrades but is now a no-op for agents already on PRO. It specifies the verb ('claim'), resource ('free PRO upgrade'), and current status ('deprecated', 'no-op'), distinguishing it from sibling tools like 'get_activation_status' or 'register_agent'.

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 explicit usage guidance: it states when NOT to use this tool ('Deprecated: Agents are now auto-activated on PRO tier at registration') and clarifies its current behavior ('This endpoint is a no-op for agents already on PRO'). This directly informs the agent to avoid using it in favor of automatic activation.

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