whatsapp_send_link

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

No annotations are provided, so the description carries the full burden. It does not disclose behavioral traits such as whether the tool modifies state, rate limits, error handling, or what happens if the link is invalid. The description is too terse for a mutation tool.

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 very concise with only three short phrases. Every word serves a purpose, but the structure could be improved to front-load essential usage context.

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?

Despite having an output schema, the description lacks important context such as prerequisites (e.g., WhatsApp must be connected), error scenarios, or what response to expect. Given the large number of sibling tools, more contextual completeness is needed.

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 0%, but the description adds minimal meaning: 'phone: no '+'', 'url: link', 'text: optional message'. This provides basic formatting guidance (e.g., omit '+' in phone number) but does not fully explain semantics (e.g., expected URL scheme, phone number format).

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 action ('Send link with preview'), the resource ('link'), and the platform ('via WhatsApp'). It distinguishes from sibling tools like whatsapp_send_text or whatsapp_send_image by specifying that a link with a preview is sent.

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 guidance is provided on when to use this tool versus alternatives like whatsapp_send_text (for text only) or other send tools. There is no mention of prerequisites or when not to use it.

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