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

The annotations already declare readOnlyHint=true and destructiveHint=false, and the description's 'Read' is consistent with that. The description adds a small amount of behavioral context by narrowing the scope to supply/demand intelligence, but it does not explain what the returned intelligence contains or any edge behavior. With annotations covering the safety profile, this is acceptable but minimal.

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?

The description is a single, front-loaded sentence with no filler or repetition. Every word adds meaning, and for a zero-parameter read-only tool, this is an appropriately sized definition.

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 tool is simple: no parameters, read-only annotations, and no output schema. An agent can safely invoke it, but the description is thin on what the intelligence actually includes and how it relates to sibling market tools. It is minimally viable but leaves room for more context.

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 are zero parameters and the schema is empty, so the description has no parameter burden to carry. The schema already fully covers the parameter surface, earning the baseline for a zero-parameter tool.

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 uses a clear verb ('Read') and names a specific resource ('supply/demand market intelligence'), so an agent knows the basic operation. However, it does not differentiate this from sibling tools like get_market_stats or get_market_money_metrics, so it is clear but not uniquely scoped.

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?

No guidance is provided about when to use this tool instead of the many overlapping market-related siblings such as get_market_stats, get_market_money_metrics, or search_global_market. The phrase 'supply/demand' implies a niche, but there are no explicit usage conditions or alternatives.

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