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

Annotations already declare readOnlyHint=true and openWorldHint=true, so the safety profile is covered. The description adds useful context about the output content and lane scoping, but does not disclose additional behavior such as rate limits, pagination, or the dynamic nature of 'latest' beyond what openWorldHint implies.

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 compact sentence front-loads the core purpose and quickly enumerates the key output fields. There is no filler, and every clause adds information about what the tool produces.

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?

The description, combined with the input schema's enum for lane and the presence of an output schema, is nearly complete for a read-only aggregator tool. It would benefit from a brief note about 'limit,' but defaults and the output schema mitigate the gap.

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 0%, so the description must compensate for parameter meaning. It partially explains 'lane' through 'one asset lane,' but it does not explain 'limit' at all, leaving whether it caps ticker count, score count, or batch size ambiguous. The description does not fully compensate for the lack of parameter documentation.

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 clearly identifies what the tool returns: the latest aggregator-consensus batch for one asset lane, including ticks that cleared the pipeline, blended agg_score, and confirming source count. It does not explicitly contrast itself with siblings like rayana_ai_consensus or rayana_ai_rankings, so it stops short of the 5 bar for explicit sibling differentiation.

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 description implies when to use the tool: when you want consensus signal data for a single asset lane. But it gives no explicit guidance about when to prefer this over rayana_ai_consensus, rayana_ai_rankings, or similar siblings, and offers no exclusions.

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