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

With readOnlyHint=true already covering the safe-read profile, the description adds genuinely useful behavioral context: the account requirement and the explicit warning that start_login does NOT open this tool, which prevents a plausible failure mode. It omits return shape, but the auth caveat is real added value.

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?

Two clear sentences covering purpose and return scope, followed by a compact uppercase ACCESS block that front-loads the blocker. No filler, though the second sentence ('Returns assets eligible for public proof display') largely restates the first.

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 zero-param, read-only tool with no output schema, the description supplies the essential missing pieces: authentication path and the start_login non-equivalence. The only gap is a fuller sense of what an asset record contains, which is minor here.

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?

Zero parameters, so there is nothing to disambiguate and the baseline of 4 applies. The description correctly implies the tool takes no filtering arguments (eligible assets are scoped server-side).

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+resource (get ... assets) and scopes it to verified assets displayable on the user's profile, which differentiates it from list_assets/get_asset by the 'public proof display' qualifier. However, it never names the sibling tools it sits between, so the discrimination requires inference.

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?

Gives an access prerequisite (needs a Proof account, authenticate first) but no explicit when-to-use versus list_assets, get_asset, or get_my_profile. Usage context is implied by 'displayed on the user's profile' rather than stated as a routing rule.

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