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

The annotations already indicate this is a non-read-only, open-world, non-destructive operation. The description adds useful behavior beyond that: the 3-day deadline, sealed ratings until both sides rate, null ratings when missing, and the prerequisite before redeeming another slot.

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 three tightly packed sentences with no wasted language. The rating action and range are front-loaded, followed by deadline, sealing behavior, and prerequisite.

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 four-parameter write tool with no output schema, the description covers the key behavioral facts: deadline, sealed outcome, null-rating consequence, and prerequisite. It leaves some minor gaps around return behavior and does not fully compensate for the 50% schema coverage, but it is largely complete.

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 description coverage is only 50%, so the description should carry more parameter meaning. It clarifies the score range as 0-5 and contextualizes the slot as part of a paid loop job, but it does not explain taskId or session beyond what the schema already provides.

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 and resource: rate the other side of a paid loop slot. It also clarifies the scope as tied to a finished loop job and distinguishes the action from redemption by saying rating must happen before another redeem.

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?

It gives clear timing and prerequisite guidance: rate within 3 days of payment and rate a finished loop job before redeeming another. It does not name an alternative tool for cases where rating is not possible, so it falls short of fully explicit when/when-not routing.

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