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

Annotations already declare readOnlyHint=true and destructiveHint=false, so the read-only nature is clear. The description adds valuable context about caching ('Only locally-cached rows are returned') and schema mapping, which go beyond the annotations and inform the agent about data freshness and structure.

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 sentences, front-loaded with the main purpose. Every clause adds meaningful information: what it reads, how properties are mapped, how to identify the database, and the crucial caching limitation. No wasted words.

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 (2 params, output schema present) and the description covers the essential behavioral aspect (caching) that could affect use. With annotations and schema handling safety and parameter details, the description is sufficient for correct invocation.

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 100%, so the parameters are already well-documented. The description adds that the database accepts id or name (partial match), but the schema already states this ('Database id (UUID) or name (partial, case-insensitive)'). Thus, the description provides little additional parameter meaning beyond the schema.

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 reads cached rows of a Notion database, with a specific verb and resource. It distinguishes itself from siblings like notion_read_page (page-level read) and notion_search by emphasizing the database context and caching behavior.

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 usage context: it reads cached rows, so it's for when cached data is acceptable. The note that only locally-cached rows are returned serves as an implicit warning against using it for fresh data, but it doesn't explicitly name alternatives or state when not to use it.

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