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

Annotations already declare readOnlyHint=false and openWorldHint=true, and the description usefully adds the side effect that the previous link is invalidated and that an email goes out unless email=false. However, it never says whether the new link is returned, what the response looks like, or that this is a mutation with an external send, leaving real behavioral gaps for a non-read-only, open-world call.

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 same two facts (a new link is sent; the old one stops working) are stated three times in three sentences. It is bloated through redundancy rather than under-specification, and a meaningful detail (return value) is omitted while the repetition is kept.

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?

Covers the core action and the email toggle, but for a mutation with no output schema the description should tell the caller what comes back (notably the new link when email=false) and how this relates to the revoke-invite sibling. As written it is adequate but incomplete.

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 schema already documents all three parameters. The description only echoes the email flag's behavior and says nothing about 'id' or the 'business' acting-on-behalf parameter, so it adds essentially no meaning beyond the schema baseline.

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?

States a specific verb (send/invite) and resource (business invitation) and adds the distinguishing fact that a NEW link is issued and the old one stops working. It does not, however, differentiate itself from siblings like agenta_businesses_revoke_invite or agenta_businesses_id_link, so an agent still has to guess which is appropriate.

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?

Usage is only implied: the tool appears to be for re-sending a lapsed or lost invitation, and the 'email is false' case hints at when a caller would want the raw link instead of an email. There is no explicit when-to-use/when-not statement and no routing to the revoke_invite sibling.

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