List flashcard sets

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

With readOnlyHint: true, the safety profile is already known. The description adds behavioral details beyond the annotation: ordering ('newest first'), scope ('owned by the configured API key'), and pagination behavior. It does not disclose potential failure modes or rate limits, but for a read-only list operation this is adequate.

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 two sentences, front-loaded with the primary action and scope, followed by return fields and pagination. Every word serves a purpose, with no redundancy or filler.

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 a straightforward list operation with optional parameters and an output schema. The description covers purpose, scope, ordering, return contents, and pagination, which is sufficient for an agent to select and invoke the tool correctly. The readOnlyHint plus output schema fill remaining gaps.

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% for all three parameters (page, limit, source), each with descriptive text. The tool description does not add additional parameter semantics 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 uses a specific verb ('List') and identifies the exact resource ('flashcard sets owned by the configured API key'), with ordering ('newest first'). This clearly distinguishes it from sibling tools like get_set (single set) and generate_cards (creation).

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 provides clear context: it lists sets owned by the API key and indicates the return shape (id, title, description, card count, pagination), which helps decide when to use it. However, it does not explicitly mention alternatives or exclusions (e.g., 'use get_set for a single set'), so it falls short of full explicit guidance.

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