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

Annotations already declare readOnlyHint=true, destructiveHint=false, and idempotentHint=true, so 'it does not change or publish your website' largely restates what structured data provides. The one genuinely additive item is the cost signal ('Free'). No information about rate limits, what happens on failure, or scope of analysis is offered.

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?

Two short sentences, front-loaded with the core purpose and the safety reassurance before the trivial parameter reminder. 'Pass url' is mildly redundant given the single-name schema, but overall there is little waste.

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 one-parameter read-only scan whose safety profile is fully covered by annotations, the description is nearly sufficient. The only soft spot is that with no output schema, 'what Soclo can learn from it' leaves the return content somewhat vague.

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 the single url parameter is fully documented in the schema with its own description and maxLength. 'Pass url' adds nothing beyond that, so the baseline 3 applies.

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 verb ('Analyse') and resource ('a public website URL') plus the outcome ('report what Soclo can learn from it'). However, it never distinguishes itself from a plausibly related sibling such as soclo_brand_scan, so an agent has to infer the boundary.

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?

It implicitly signals use for a public URL and notes the scan is free, but gives no when-to-use/when-not guidance and names no alternative among the many siblings. The agent gets cost info but not routing info.

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