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

With no annotations, the description carries the transparency burden and does a solid job: it states the tool is free, explains the cross-agent memory/mailbox effect, and explicitly discloses that keys never touch the server because the kit carries a placeholder. It stops short of describing output structure, but the key security behavior is clear.

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 compact and front-loads the core action before explaining the value and privacy behavior. The vendor list is long but maps directly to the target enum, and the sentences all contribute useful 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?

For a simple two-parameter tool with no output schema, the description covers what the output is for, how to use it, and the important security caveat. It could add more detail about the contents/format of the returned kit, but nothing essential is missing for correct invocation.

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 baseline is 3. The description reinforces that the kit targets other vendors and mentions placeholders, but it does not add meaningful syntax or formatting details beyond the property descriptions already present in the schema.

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, 'emits', and names the resource (a one-paste onboarding kit) for a range of target vendors, so an agent can tell what the tool produces. It does not explicitly contrast it with sibling tools like locker_send or locker_register_key, so it falls short of full sibling differentiation.

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 gives a clear workflow: hand the operator the kit, they paste it, and the sibling agent can load shared memory. It does not list exclusions or name alternative tools, but the intended scenario is described well enough.

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