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

Beyond the annotations, the description discloses important behavior: nothing is exposed to the internet, no port is opened, only private addresses are accepted, and the returned open_url signs the owner in to Termalin. It also explains the session-gated nature of the generated URL and the account limit on internal sites.

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 front-loaded with the core action and then covers returns, caveats, and limits. It is longer than ideal but most sentences carry unique operational value, with only mild redundancy around access and sharing behavior.

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?

There is no output schema, but the description explains the return fields (id, open_url, url) and how to use open_url. It also covers the private-address constraint, session behavior, and the account limit, leaving an agent with enough context to invoke and follow up 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?

Schema description coverage is 100%, so the parameters are already well documented. The description adds useful semantic context that only private addresses are accepted and that the server is the one whose Connector reaches the site, though it does not discuss https_inside beyond what the schema provides.

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: it puts an internal web service into the owner's Termalin cabinet as an internal site. It clearly distinguishes this from opening, reading, or sharing the site, and names web_link_delete for removal when the limit is reached.

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 states the precise use case: a dashboard, admin panel, or app reachable only inside the server's network. It also gives exclusions and alternatives, noting that this tool does not open/read the site, cannot grant others access, and that removal is handled via web_link_delete.

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