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

With no annotations provided, the description carries the full burden of behavioral disclosure. It only says 'Fetch', which implies a read operation, but does not disclose behavior for missing hashes, exact-match requirements, authentication needs, or any other side effects or error conditions.

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 a single, front-loaded sentence with no redundant words. It communicates the action and the key parameter in one breath, earning full marks for conciseness.

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 simple one-parameter fetch tool, the description provides the core purpose and parameter meaning, but lacks usage context and behavioral fallback (e.g., not-found handling). With no output schema or annotations, the burden on the description is higher, so completeness is moderate.

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's single 'hash' parameter has zero description coverage, so the description adds value by clarifying it is the 'content hash' of the sealed record. It does not, however, specify the hash format or additional constraints beyond the schema's maxLength.

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 ('Fetch') and a clearly defined resource ('a sealed verification record (the receipt)') accessed by a lookup key ('content hash'). This distinguishes it from sibling tools like attest_record (creation) and verify (verification) by focusing on retrieval of the receipt.

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?

No guidance is given about when to use this tool versus alternatives like verify, badges_verify, or attest_record. There is no mention of conditions, prerequisites, or situations where this tool is preferred or not.

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