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

The note explains that median/average prices exclude fractional ownership and non-market deeds, while transaction counts remain complete. This adds behavioral context beyond the readOnlyHint and destructiveHint annotations, informing agents about data quality and exclusions.

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 brief, front-loaded with the main purpose, and uses a concise note for important exclusions. Every sentence adds value without repetition or verbosity.

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?

For a simple read-only tool with two parameters and no output schema, the description fully covers the output (histogram) and key behavioral notes. No gaps are apparent given the tool's complexity.

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?

The input schema already provides descriptions and defaults for both parameters (bins and maxPrice). The description does not add further parameter semantics beyond what the schema covers, so baseline score applies.

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 states the tool returns a price distribution histogram showing transaction counts per price range, distinguishing it from siblings like get_price_statistics and get_market_overview. The title 'Price Distribution Histogram' further reinforces the specific resource.

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 mentions it is 'useful for understanding the overall market price structure in Poland,' providing context but no explicit comparison to alternatives like get_price_statistics or get_market_overview. No when-not-to-use or alternative tool references are given.

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