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

Annotations already declare readOnlyHint=true and destructiveHint=false, so the safety profile is covered. The description adds genuine context by stating that no Bazaar data is cached or republished, which tells the agent this tool yields a pointer rather than data. It does not disclose the form of the returned link or any invocation caveats.

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?

Two short sentences with the core purpose front-loaded and no filler. Both sentences are relevant, though the description is arguably over-terse given the gaps elsewhere.

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?

With no output schema, the description should clarify what is returned (a URL string? a structured object?) and how q is applied to it. It says only that a link is returned, and the sole parameter is unexplained, leaving an agent guessing at the call contract.

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 is one parameter, q, with 0% schema description coverage, so the description carries full responsibility for explaining it. It never mentions q or how the query shapes the generated link, leaving the parameter undocumented in both places.

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: it 'Returns a link to search Coinbase's Bazaar directly.' That is clear and distinct from data-retrieval siblings like search_kits or market_snapshot. It does not explicitly contrast itself against those siblings, so it stops short of a 5.

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?

There is no explicit when-to-use or when-not-to-use guidance, and no alternative tools are named. The note that Agentropolis does not cache or republish Bazaar data implies you must go to Bazaar for that content, but that is an inference rather than stated usage guidance.

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