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 disclose the core behavior: it produces a receipt that is signed and timestamped. However it omits key traits — whether raw content is stored or only the hash, retention/immutability, and privacy implications of sending content to be notarized.

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?

A single dense sentence that front-loads the core concept ('Proof-of-existence') before the mechanism and use cases. Nothing is wasted.

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 tool with no annotations and no output schema, the description omits how content is supplied (arguments? file?) and what exactly is returned or persisted. These are material gaps for a notarization primitive, though the core concept is conveyed.

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?

There are zero declared parameters, so the baseline is 4; the schema is open (additionalProperties: true). The description's 'binding any content to a hash' partially explains the freeform input, adding modest value over the empty schema.

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 outcome — a signed, timestamped receipt binding content to a hash — rather than a tautology on the name. It is clearly distinguishable from siblings like verify_text or attest_quality, though it never explicitly contrasts with them.

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 parenthetical '(IP/plagiarism/audit)' implies the scenarios the tool serves, which is real but only implied usage guidance. There is no explicit when-to-use/when-not, no prerequisites, and no routing to alternatives such as verify_text.

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