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

Since no annotations are provided, the description carries the burden of explaining side effects. It does disclose the authentication requirement and the completed-request precondition, which is useful. However, it does not state whether claiming transfers or revokes ownership, is one-time or idempotent, or what happens when assets were already claimed. 'Claim' is the only side-effect signal.

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-loaded: the first sentence states the operation, and the second provides the access prerequisite. Every sentence earns its place, and there is no padding or redundant restating of the tool name.

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?

This is a minimal, state-changing tool with no output schema and no annotations. The description adequately explains the operation and authentication, but it omits return behavior and post-claim effectsached feet. For a one-parameter tool this is minimally viable, but there are real gaps that could affect 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?

The schema already describes the only parameter, id, as 'Verification request ID', and schema coverage is 100%. The description adds no extra detail about the ID format, how to obtain it, or what makes a request eligible, so the baseline score of 3 is appropriate.

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 clearly identifies the action ('Claim'), the object ('shared assets'), and the source ('a completed verification request'), so an agent can understand what the tool does. It does not explicitly differentiate this from sibling tools like claim_username or get_asset, so it stops short of a 5.

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 description gives a clear precondition: the caller needs a Proof account and an authenticated session, and it instructs the agent to authenticate or call start_login, then retry. It does not explicitly mention when to prefer this over alternatives or what to do if the request is not yet completed, but the context is clear and actionable.

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