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

No annotations are supplied, so the description carries the full burden. "List" implies a safe read, and the mention of slugs adds real downstream context, but nothing is said about pagination, result volume, ordering, or what happens with the unusual notification_message parameter.

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 short sentences, front-loaded with the resource being listed, with zero filler. The downstream pointer is compact and useful.

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 6-parameter paginated listing tool with no output schema and no annotations, the description is thin: nothing about what a set object contains, how paging works, or why a notification_message parameter exists. An agent could call it but has little basis for choosing filters or interpreting results.

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 only 33% — only search and notification_message are documented in the schema. The description adds no parameter meaning at all, leaving game, page, size, and language semantics and the strange notification_message contract entirely unaddressed.

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 gives a clear verb and resource ("List available card sets/expansions") and adds a hint about the returned identifier, so an agent knows this is a read-only enumeration tool. It does not differentiate from the sibling list_series, which sounds adjacent enough that an agent could confuse sets with series.

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?

Usage is implied by the name and the note that the slug feeds search_cards, which usefully links the two tools in a workflow. However, there is no guidance on when to pick this over list_series or search_cards, and no mention of filters like game or language as selection criteria.

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