compare_firms

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

No annotations are provided, so the description carries the burden, and it does disclose the return shape (a comparison table with metrics such as fees, profit split, payout speed and rules). It does not confirm read-only behavior, authentication requirements, rate limits, or what happens with invalid or duplicate slugs, so meaningful gaps remain for a tool with zero annotation coverage.

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 tight sentences: purpose and scope first, return content second, the optional parameter last. The metric examples (fees, profit split, payout speed, rules) do double duty by hinting at valid metrics values, so no sentence is wasted.

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 and no annotations, the description correctly summarizes what is returned, which covers most of the agent's needs for a read-only comparison call. However, it omits how to discover valid metric identifiers and any error/edge-case behavior, leaving the metrics parameter under-specified for a 2-parameter 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 50%: 'slugs' is documented with an example array, while 'metrics' has no schema description. The description partially compensates by stating 'Optionally specify which metrics to compare', clarifying that metrics is optional and filters the output, but it never enumerates valid metric names, leaving that array effectively opaque.

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 names a specific verb (Compare) and resource (futures prop trading firms) and constrains cardinality to 2-4 entities side-by-side, which separates it from get_firm (single firm) and list_firms/search_firms. An agent can see at a glance that this tool produces a multi-entity comparison rather than a lookup.

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 phrase 'Compare 2-4 firms side-by-side' implies the situation in which it applies, but there is no explicit when-to-use versus when-not-to-use guidance and no sibling is named as an alternative (e.g., use get_firm for a single firm). Usage is inferable but not stated.

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