spectra_get_best_fixed_yields

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

Discloses that rankings are by raw APY without considering capital size or liquidity, and explains the different focus from the sibling tool. No annotations provided, so description carries full burden.

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 paragraphs, front-loaded with main purpose. Additional explanation of ranking trade-offs is useful but could be slightly trimmed. No redundant content.

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?

Covers purpose, parameters, and differentiation from sibling. No output schema, but description implies return of top opportunities ranked by APY. Missing details on actual response format, but sufficient for a read-only query tool.

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 coverage is 100% so baseline is 3. Description adds context for compact parameter ('use for quick scanning') and states asset filter, but does not substantially enhance understanding beyond 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?

Clearly states 'Find the best fixed-rate yield opportunities across all Spectra chains' and distinguishes from sibling spectra_scan_opportunities by explaining difference in ranking methodology.

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?

Explicitly tells when to use (to find best fixed yields), and provides guidance on when to use this vs. spectra_scan_opportunities, with clear explanation of the intentional disagreement in rankings.

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