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

With no annotations, the description carries the full burden and does disclose the material consequences of the mutation: matching attestations vest the receipt (credit + stake released) and mismatching ones void it and burn the stake. This is genuinely useful behavioral context, though it omits prerequisites (an existing challenge) and any auth requirements.

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 tight sentences, each earning its place, with the core action front-loaded before the outcome consequences. No filler or redundancy.

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?

An output schema exists, so return values need not be explained, and the description covers the stake/credit consequences an agent needs to weigh before calling. It is close to complete, missing only param-level identification and prerequisites.

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 coverage is 0%, so the description must compensate, but it only clarifies one of three params: output_hash is characterized as a 'fresh sha256' hash. contribution_id and provider_id receive no explanation in either the schema or description, leaving a clear gap.

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 ('attest') and resource ('challenge on your CCE receipt') plus the required input type ('fresh sha256 output hash'). It is distinguishable from the challenge-creation sibling by the 'answer a challenge' framing, though it never names cce_challenge or cce_verify_receipt_info explicitly.

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 implies the usage context: you invoke it when there is an outstanding challenge on your receipt. However, it never spells out when-not to use it or points to an alternative sibling for related receipt operations, leaving the routing to inference.

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