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

No annotations are provided, so the description carries the full burden. It implies a read-only lookup and explains that higher tiers earn more NCTR per bounty, which is useful domain context, but it says nothing about authentication, data freshness, or the shape of the returned rates, leaving real gaps for an unannotated tool.

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 short sentences, front-loaded with the core action and the two modes. The final line about tiers earning more is mildly redundant with the first sentence but still useful framing rather than filler.

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 read-only tool with two optional parameters, no output schema, and no nested objects, the description covers purpose, modes, and the tier-earnings relationship well. The gap is that bounty_id's role is only explained in the schema, so the description alone would leave an agent unsure about that parameter.

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 100%, so both parameters are already documented in the schema, establishing a baseline of 3. The description reinforces the tier-omission behavior but never mentions bounty_id or what a tier-adjusted earning amount means, adding little beyond the 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?

The description states a specific verb and resource — get NCTR earning rates — and scopes it to two clear modes: a single Crescendo status tier or a comparison across all tiers. It also distinguishes the concept from sibling tools like check_tier_requirements and search_bounties by naming the earning-rate domain 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?

It tells the agent both usage modes: pass a tier for one tier, or omit it to compare all tiers. There is no explicit when-not-to-use guidance or named alternative among the siblings, so it stops short of a 5.

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