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

Annotations already declare readOnlyHint=true and openWorldHint=true, so safety and external-dependency behavior are covered. The description adds useful shape context — body is plain text with a separate rendered bodyXml, and privacy/comment/trade flags are surfaced — but says nothing about rate limits, auth needs, or behavior on private/deleted lists. Given annotations carry the safety burden, this is adequate but not rich.

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?

Front-loaded with the core action, then a compact field inventory, then a routing pointer — a sensible order with little waste. Minor deduction for the duplicated "Get Get" at the start and for spending prose on return fields that the output schema already covers.

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?

With an output schema present, the description need not explain return values, yet it does so briefly while also covering the entry-paging relationship via boardgamegeek_geeklist_items. The only real gap is edge-case behavior (private lists, invalid ids), which is minor for a read-only single-resource getter.

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% and the single `id` parameter is already documented in the schema as a required positive geeklist id sourced from boardgamegeek_geeklists or a geeklist href. The description adds no additional meaning about the id (no format, no example, no behavior when the id is invalid or private), so the baseline 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?

States a specific verb and resource ("Get a BoardGameGeek geeklist's detail") and scopes it to "one community geeklist's metadata and body," which cleanly separates it from boardgamegeek_geeklists (collections) and boardgamegeek_geeklist_items (entries). The enumeration of returned fields (title, creator id, dates, body, bodyXml, flags, sort) makes the object unmistakable.

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 final sentence explicitly routes the agent: "Use boardgamegeek_geeklist_items to page its entries," which gives a clear alternative for the adjacent task. It lacks an explicit when-not-to-use statement (e.g., don't call this to enumerate items or to list all geeklists), so it stops short of full when/when-not coverage.

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