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

Annotations only declare readOnly=false, destructive=false, and openWorld=true; the description adds genuinely new behavioral context: the link grants account-free access with watch/comment/approve rights, and creating a new link invalidates the earlier one. That last detail is a non-obvious side effect the annotations do not convey. It stops short of stating expiry, permission requirements, or whether the link is publicly indexed.

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?

Three short sentences, each doing distinct work: capability and access scope first, side effect second, usage restriction last. No filler and the most decision-relevant information is front-loaded.

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 carries the burden of return-value semantics, and it never says the tool returns the URL itself — an agent must assume so. Otherwise it is complete for a single-parameter mutation: access model, side effect, and usage gate are all covered.

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?

There is one parameter (projectId) with 0% schema description coverage, so the schema contributes no meaning at all. The description implies project scoping via 'the project' but never names projectId, its expected format, or where to obtain it, leaving the agent to infer the only possible parameter.

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 and resource ('Make a review link') and immediately defines what the artifact is: a link that lets anyone watch the project, leave notes, and approve or request changes without an account. This clearly separates it from siblings like get_share_link and revoke_share_link, so an agent can choose it 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?

Provides an explicit gating condition — 'Only when the user asks to share' — which prevents proactive link creation, a real risk given the openWorldHint. It does not name the sibling alternatives (get_share_link to read an existing link, revoke_share_link to disable one), so the routing guidance is strong but not complete.

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