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

Annotations already declare readOnlyHint, idempotentHint, and destructiveHint, so the safety profile is covered. The description adds the behavioral detail of 'paginated', which is useful context beyond annotations, but does not disclose other behaviors like pagination limits or matching semantics.

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 short sentence that is front-loaded and contains no filler. It communicates the core function and a key behavioral trait (pagination) without redundancy.

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 search tool with an output schema and strong annotations, the description covers the essential purpose and pagination behavior. It does not elaborate on matching rules or alternatives, but the output schema and annotation hints fill most gaps, making this adequately complete for straightforward use.

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 0%, so the description must compensate for parameter meaning. It adds 'by pattern' and 'paginated', which clarifies the pattern parameter and the presence of page/limit, but it does not explain the case_sensitive parameter or the default behavior beyond schema defaults.

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 action ('Search OCR by pattern') and mentions pagination, clearly identifying the tool's resource and mode of operation. However, it does not differentiate from the sibling tool 'search_ocr', so the purpose is clear but the distinction is not explicit.

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 for pattern-based OCR searches but provides no explicit guidance on when to use this tool versus alternatives like 'search_ocr' or 'get_ocr_by_scan'. It also lacks any exclusions or prerequisite context, leaving the agent to infer the appropriate use case.

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