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

The annotations already declare readOnlyHint=true, and the description adds the REST GET method, reinforcing that this is a safe read operation. However, it does not disclose additional behavioral details such as error handling, authentication requirements, or the exact structure of the returned blueprint details, which would add value beyond the annotation.

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 exactly two sentences, with the purpose front-loaded in the first sentence and the technical REST reference in the second. Every word serves a purpose, with no fluff or redundant content.

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 one fully documented parameter and no output schema, the description is mostly sufficient. It explains what the tool does but could optionally mention that blueprint IDs are obtained from the list_catalog_blueprints tool or describe the response shape, though these are not critical given the tool's simplicity and existing annotations.

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 schema description for blueprint_id is 'Blueprint id — required', which fully explains the parameter. The description does not add any additional semantic information about the parameter beyond what the schema already provides, so the baseline score of 3 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 verb 'Get' and the specific resource 'a single catalog blueprint's details', distinguishing it from sibling tools like printify_list_catalog_blueprints which retrieves multiple blueprints. The REST path reinforces the exact scope.

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 the tool is for fetching one specific blueprint by ID via the word 'single', but it does not explicitly mention alternatives (e.g., use list_catalog_blueprints for all blueprints) or when not to use this tool. Usage context is clear but not fully developed.

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