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 does reveal key constraints — free, limited to one per wallet, capped at 10 URLs, no payment required — and the signature parameter's schema text adds the 409-on-repeat behavior. However, the main description omits what a successful claim produces or how the result is consumed, leaving the success-path behavior undisclosed.

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 a single sentence with zero waste, and 'FREE' is front-loaded. However, the promotional capitalization and terse structure read more like marketing copy ('one real site-map run') than a functional tool definition, which slightly undermines clarity despite the brevity.

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 an authentication-heavy claim tool (payer address + signature) with no output schema and no description of what a call returns or how the successful claim is consumed by webcap_map_lite. An agent cannot tell what to do with the result, which is a meaningful gap given the absence of any output schema.

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 100%, and each parameter is well documented in the schema (url format, payer address format, and a detailed signature spec including the exact personal_sign string and 409 behavior). Since the schema does the heavy lifting, the baseline of 3 applies and the description adds no additional parameter meaning.

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 states a specific action — claiming a free trial of a site-map run, capped at 10 URLs — and the 'FREE (one per wallet)' framing distinguishes it from the paid sibling tools like webcap_map_lite and the other webcap_trial_claim_* variants. It is clear enough to tell apart from siblings, though the phrasing is terse and ad-like rather than a crisp verb+resource statement.

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?

No explicit guidance is given on when to use this tool versus alternatives. It never mentions that a successful claim should be followed by using webcap_map_lite, nor states when NOT to use it (e.g., after a wallet has already claimed). 'One per wallet' implies an entitlement constraint but leaves the routing decision to the agent.

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