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

With no annotations at all, the description carries the full burden. It does disclose that this is a write to the connected account and that no trial is started (a billing/plan-relevant fact), which is useful beyond a bare name. But it omits what happens on an expired or already-claimed token, whether the call is idempotent, and what the caller gets back, all material for a mutation tool with zero annotation coverage.

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?

One sentence, front-loaded with the action, with no wasted clauses. The trailing 'without scanning again or starting a trial' is partly benefit framing, but it does carry usage information, so it earns its place.

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 single-parameter tool with a fully documented schema and no output schema, the description covers the essentials of what is saved and where. It is still thin on outcome behavior (what the account ends up with, failure modes on an expired token), which an agent would want before invoking a state-changing call.

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 exactly one parameter and schema coverage is 100%, so the schema already explains claimToken as an expiring token from anonymous assess_launch. The description adds no further meaning about the token, so the baseline of 3 applies.

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: save an anonymous assessment to the connected account. The word 'anonymous' plus 'connected account' makes the anonymous-to-owned conversion clear, which distinguishes it from read siblings like get_assessment. It stops short of naming the sibling it replaces, so the differentiation is inferential rather than explicit.

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?

The clause 'without scanning again or starting a trial' implies the situation to use it (an anonymous assessment already exists and should be persisted rather than re-run), which implicitly rules out assess_launch. However, it never names that alternative or states the prerequisite that a valid claimToken from a prior anonymous assess_launch is required; the reader has to reconstruct that from the schema.

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