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

With no annotations, the description carries the full burden, and it does add some behavioral context: it marks the tool as [FREE] and explains Receipts-v2 vesting mechanics (no instant mint, challenge window, 20% stake). However, it does not explicitly state that the operation is read-only, whether there are side effects, or 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?

The description is front-loaded with the core purpose and then adds protocol context in a second sentence. It is dense but efficient, with no filler, though the Receipts-v2 detail is slightly tangential to immediate invocation.

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?

Given that an output schema exists, the description need not explain return values in detail, and it does list the key components. The absence of usage guidance is a gap, but for a zero-parameter view tool with rich economic context, the description is largely sufficient.

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 tool takes zero parameters, so the schema already fully covers the input surface. The description need not add parameter meaning, and the baseline of 4 for a zero-parameter tool 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 states a specific verb (Compute) and resource (Credit Exchange market view), and enumerates the exact outputs: receipt counts by status, epoch baseline object, and recent contributions. It is clearly not a tautology, but it does not explicitly differentiate itself from similar siblings such as get_credit_market_stats or cce_verify_receipt_info.

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 explains what the tool computes but offers no guidance on when to use it versus alternatives. There are no exclusions, prerequisites, or named sibling tools to route the agent.

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