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

Goes well beyond the lone destructiveHint:false annotation: discloses immediate push delivery, that acceptance means joining without review, a per-organization daily cap of 200, and the full set of skip conditions (existing member, pending invite, declined within 30 days, removed, blocked, cloud user) with the explicit note that skipped is not a failure. That last point in particular prevents an agent from misreading partial results as errors.

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?

Front-loads the role gate in brackets, then the action, consequence, rate limit, skip semantics, and tool routing in a tight sequence. Every clause carries information, though the semicolon-chained density makes it a single dense block rather than cleanly separable sentences.

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?

With no output schema, the description does cover the important runtime shape by explaining that non-invitable users land in a skipped bucket rather than failing. It does not describe what a successful response contains (invited vs skipped counts, per-user reasons), which is the one remaining gap for an agent that needs to report outcomes.

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 coverage is 100% and the schema already documents organizationId, the userIds array bounds, and the message max length plus where the message is displayed. The description restates the ≤200-character message and ≤30-person limits but adds no format, ordering, or ID-resolution detail beyond the schema, so this is baseline territory.

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?

Names a specific verb+resource (点名邀请 = invite named users into the organization) and immediately characterizes scope (≤30 users, by userId, immediate push, no-review join). It also distinguishes itself from adjacent tools by pointing to search_organization_invite_candidates for candidate lookup and list_organization_member_invites for follow-up, so an agent can place it in the workflow without opening any schema.

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?

States the prerequisite role gate (login required, OWNER/ADMIN) and routes to a pre-check tool and a follow-up tool, which is more than most definitions offer. It stops short of naming when NOT to use it (e.g. link-based or bulk invite siblings like manage_organization_invite_links), so the alternative space is only partially covered.

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